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Author SHA1 Message Date
Kees Cook
6396bb2215 treewide: kzalloc() -> kcalloc() 
The kzalloc() function has a 2-factor argument form, kcalloc(). This
patch replaces cases of:

        kzalloc(a * b, gfp)

with:
        kcalloc(a * b, gfp)

as well as handling cases of:

        kzalloc(a * b * c, gfp)

with:

        kzalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kzalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kzalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kzalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kzalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kzalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kzalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kzalloc
+ kcalloc
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kzalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kzalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kzalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kzalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kzalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kzalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kzalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kzalloc(sizeof(THING) * C2, ...)
|
  kzalloc(sizeof(TYPE) * C2, ...)
|
  kzalloc(C1 * C2 * C3, ...)
|
  kzalloc(C1 * C2, ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kzalloc
+ kcalloc
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
 2018-06-12 16:19:22 -07:00
Kees Cook
6da2ec5605 treewide: kmalloc() -> kmalloc_array() 
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This
patch replaces cases of:

        kmalloc(a * b, gfp)

with:
        kmalloc_array(a * b, gfp)

as well as handling cases of:

        kmalloc(a * b * c, gfp)

with:

        kmalloc(array3_size(a, b, c), gfp)

as it's slightly less ugly than:

        kmalloc_array(array_size(a, b), c, gfp)

This does, however, attempt to ignore constant size factors like:

        kmalloc(4 * 1024, gfp)

though any constants defined via macros get caught up in the conversion.

Any factors with a sizeof() of "unsigned char", "char", and "u8" were
dropped, since they're redundant.

The tools/ directory was manually excluded, since it has its own
implementation of kmalloc().

The Coccinelle script used for this was:

// Fix redundant parens around sizeof().
@@
type TYPE;
expression THING, E;
@@

(
  kmalloc(
-	(sizeof(TYPE)) * E
+	sizeof(TYPE) * E
  , ...)
|
  kmalloc(
-	(sizeof(THING)) * E
+	sizeof(THING) * E
  , ...)
)

// Drop single-byte sizes and redundant parens.
@@
expression COUNT;
typedef u8;
typedef __u8;
@@

(
  kmalloc(
-	sizeof(u8) * (COUNT)
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(__u8) * (COUNT)
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(char) * (COUNT)
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(unsigned char) * (COUNT)
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(u8) * COUNT
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(__u8) * COUNT
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(char) * COUNT
+	COUNT
  , ...)
|
  kmalloc(
-	sizeof(unsigned char) * COUNT
+	COUNT
  , ...)
)

// 2-factor product with sizeof(type/expression) and identifier or constant.
@@
type TYPE;
expression THING;
identifier COUNT_ID;
constant COUNT_CONST;
@@

(
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * (COUNT_ID)
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * COUNT_ID
+	COUNT_ID, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * (COUNT_CONST)
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * COUNT_CONST
+	COUNT_CONST, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * (COUNT_ID)
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * COUNT_ID
+	COUNT_ID, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * (COUNT_CONST)
+	COUNT_CONST, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * COUNT_CONST
+	COUNT_CONST, sizeof(THING)
  , ...)
)

// 2-factor product, only identifiers.
@@
identifier SIZE, COUNT;
@@

- kmalloc
+ kmalloc_array
  (
-	SIZE * COUNT
+	COUNT, SIZE
  , ...)

// 3-factor product with 1 sizeof(type) or sizeof(expression), with
// redundant parens removed.
@@
expression THING;
identifier STRIDE, COUNT;
type TYPE;
@@

(
  kmalloc(
-	sizeof(TYPE) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kmalloc(
-	sizeof(TYPE) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kmalloc(
-	sizeof(TYPE) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kmalloc(
-	sizeof(TYPE) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(TYPE))
  , ...)
|
  kmalloc(
-	sizeof(THING) * (COUNT) * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kmalloc(
-	sizeof(THING) * (COUNT) * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kmalloc(
-	sizeof(THING) * COUNT * (STRIDE)
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
|
  kmalloc(
-	sizeof(THING) * COUNT * STRIDE
+	array3_size(COUNT, STRIDE, sizeof(THING))
  , ...)
)

// 3-factor product with 2 sizeof(variable), with redundant parens removed.
@@
expression THING1, THING2;
identifier COUNT;
type TYPE1, TYPE2;
@@

(
  kmalloc(
-	sizeof(TYPE1) * sizeof(TYPE2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kmalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2))
  , ...)
|
  kmalloc(
-	sizeof(THING1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kmalloc(
-	sizeof(THING1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(THING1), sizeof(THING2))
  , ...)
|
  kmalloc(
-	sizeof(TYPE1) * sizeof(THING2) * COUNT
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
|
  kmalloc(
-	sizeof(TYPE1) * sizeof(THING2) * (COUNT)
+	array3_size(COUNT, sizeof(TYPE1), sizeof(THING2))
  , ...)
)

// 3-factor product, only identifiers, with redundant parens removed.
@@
identifier STRIDE, SIZE, COUNT;
@@

(
  kmalloc(
-	(COUNT) * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	COUNT * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	COUNT * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	(COUNT) * (STRIDE) * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	COUNT * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	(COUNT) * STRIDE * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	(COUNT) * (STRIDE) * (SIZE)
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
|
  kmalloc(
-	COUNT * STRIDE * SIZE
+	array3_size(COUNT, STRIDE, SIZE)
  , ...)
)

// Any remaining multi-factor products, first at least 3-factor products,
// when they're not all constants...
@@
expression E1, E2, E3;
constant C1, C2, C3;
@@

(
  kmalloc(C1 * C2 * C3, ...)
|
  kmalloc(
-	(E1) * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kmalloc(
-	(E1) * (E2) * E3
+	array3_size(E1, E2, E3)
  , ...)
|
  kmalloc(
-	(E1) * (E2) * (E3)
+	array3_size(E1, E2, E3)
  , ...)
|
  kmalloc(
-	E1 * E2 * E3
+	array3_size(E1, E2, E3)
  , ...)
)

// And then all remaining 2 factors products when they're not all constants,
// keeping sizeof() as the second factor argument.
@@
expression THING, E1, E2;
type TYPE;
constant C1, C2, C3;
@@

(
  kmalloc(sizeof(THING) * C2, ...)
|
  kmalloc(sizeof(TYPE) * C2, ...)
|
  kmalloc(C1 * C2 * C3, ...)
|
  kmalloc(C1 * C2, ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * (E2)
+	E2, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(TYPE) * E2
+	E2, sizeof(TYPE)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * (E2)
+	E2, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	sizeof(THING) * E2
+	E2, sizeof(THING)
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	(E1) * E2
+	E1, E2
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	(E1) * (E2)
+	E1, E2
  , ...)
|
- kmalloc
+ kmalloc_array
  (
-	E1 * E2
+	E1, E2
  , ...)
)

Signed-off-by: Kees Cook <keescook@chromium.org>
 2018-06-12 16:19:22 -07:00
Linus Torvalds
7886e8aa7f Merge branch 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-arm 
Pull ARM SA1100 updates from Russell King:
 "We have support for arbitary MMIO registers providing platform GPIOs,
  which allows us to abstract some of the SA11x0 CF support.

  This set of updates makes that change"

* 'for-linus-sa1100' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: sa1100/simpad: switch simpad CF to use gpiod APIs
  ARM: sa1100/shannon: convert to generic CF sockets
  ARM: sa1100/nanoengine: convert to generic CF sockets
  ARM: sa1100/h3xxx: switch h3xxx PCMCIA to use gpiod APIs
  ARM: sa1100/cerf: convert to generic CF sockets
  ARM: sa1100/assabet: convert to generic CF sockets
  ARM: sa1100: provide infrastructure to support generic CF sockets
  pcmcia: sa1100: provide generic CF support
 2018-04-09 09:26:36 -07:00
Russell King
64b2f129c3 ARM: sa1100/simpad: switch simpad CF to use gpiod APIs 
Switch simpad's CF implementation to use the gpiod APIs.  The inverted
detection is handled using gpiolib's native inversion abilities.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2018-04-06 15:53:22 +01:00
Russell King
b51af86559 ARM: sa1100/shannon: convert to generic CF sockets 
Convert shannon to use the generic CF socket support.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2018-04-06 15:53:22 +01:00
Russell King
80c799dbf8 ARM: sa1100/nanoengine: convert to generic CF sockets 
Convert nanoengine to use the generic CF socket support.
Makefile fix from Arnd Bergmann <arnd@arndb.de>.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2018-04-06 15:53:00 +01:00
Linus Torvalds
f2d285669a Power management updates for 4.17-rc1 
- Modify the cpuidle poll state implementation to prevent CPUs from
    staying in the loop in there for excessive times (Rafael Wysocki).
 
  - Add Intel Cannon Lake chips support to the RAPL power capping
    driver (Joe Konno).
 
  - Add reference counting to the device links handling code in the
    PM core (Lukas Wunner).
 
  - Avoid reconfiguring GPEs on suspend-to-idle in the ACPI system
    suspend code (Rafael Wysocki).
 
  - Allow devices to be put into deeper low-power states via ACPI
    if both _SxD and _SxW are missing (Daniel Drake).
 
  - Reorganize the core ACPI suspend-to-idle wakeup code to avoid a
    keyboard wakeup issue on Asus UX331UA (Chris Chiu).
 
  - Prevent the PCMCIA library code from aborting suspend-to-idle due
    to noirq suspend failures resulting from incorrect assumptions
    (Rafael Wysocki).
 
  - Add coupled cpuidle supprt to the Exynos3250 platform (Marek
    Szyprowski).
 
  - Add new sysfs file to make it easier to specify the image storage
    location during hibernation (Mario Limonciello).
 
  - Add sysfs files for collecting suspend-to-idle usage and time
    statistics for CPU idle states (Rafael Wysocki).
 
  - Update the pm-graph utilities (Todd Brandt).
 
  - Reduce the kernel log noise related to reporting Low-power Idle
    constraings by the ACPI system suspend code (Rafael Wysocki).
 
  - Make it easier to distinguish dedicated wakeup IRQs in the
    /proc/interrupts output (Tony Lindgren).
 
  - Add the frequency table validation in cpufreq to the core and
    drop it from a number of cpufreq drivers (Viresh Kumar).
 
  - Drop "cooling-{min|max}-level" for CPU nodes from a couple of
    DT bindings (Viresh Kumar).
 
  - Clean up the CPU online error code path in the cpufreq core
    (Viresh Kumar).
 
  - Fix assorted issues in the SCPI, CPPC, mediatek and tegra186
    cpufreq drivers (Arnd Bergmann, Chunyu Hu, George Cherian,
    Viresh Kumar).
 
  - Drop memory allocation error messages from a few places in
    cpufreq and cpuildle drivers (Markus Elfring).
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Merge tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "These update the cpuidle poll state definition to reduce excessive
  energy usage related to it, add new CPU ID to the RAPL power capping
  driver, update the ACPI system suspend code to handle some special
  cases better, extend the PM core's device links code slightly, add new
  sysfs attribute for better suspend-to-idle diagnostics and easier
  hibernation handling, update power management tools and clean up
  cpufreq quite a bit.

  Specifics:

   - Modify the cpuidle poll state implementation to prevent CPUs from
     staying in the loop in there for excessive times (Rafael Wysocki).

   - Add Intel Cannon Lake chips support to the RAPL power capping
     driver (Joe Konno).

   - Add reference counting to the device links handling code in the PM
     core (Lukas Wunner).

   - Avoid reconfiguring GPEs on suspend-to-idle in the ACPI system
     suspend code (Rafael Wysocki).

   - Allow devices to be put into deeper low-power states via ACPI if
     both _SxD and _SxW are missing (Daniel Drake).

   - Reorganize the core ACPI suspend-to-idle wakeup code to avoid a
     keyboard wakeup issue on Asus UX331UA (Chris Chiu).

   - Prevent the PCMCIA library code from aborting suspend-to-idle due
     to noirq suspend failures resulting from incorrect assumptions
     (Rafael Wysocki).

   - Add coupled cpuidle supprt to the Exynos3250 platform (Marek
     Szyprowski).

   - Add new sysfs file to make it easier to specify the image storage
     location during hibernation (Mario Limonciello).

   - Add sysfs files for collecting suspend-to-idle usage and time
     statistics for CPU idle states (Rafael Wysocki).

   - Update the pm-graph utilities (Todd Brandt).

   - Reduce the kernel log noise related to reporting Low-power Idle
     constraings by the ACPI system suspend code (Rafael Wysocki).

   - Make it easier to distinguish dedicated wakeup IRQs in the
     /proc/interrupts output (Tony Lindgren).

   - Add the frequency table validation in cpufreq to the core and drop
     it from a number of cpufreq drivers (Viresh Kumar).

   - Drop "cooling-{min|max}-level" for CPU nodes from a couple of DT
     bindings (Viresh Kumar).

   - Clean up the CPU online error code path in the cpufreq core (Viresh
     Kumar).

   - Fix assorted issues in the SCPI, CPPC, mediatek and tegra186
     cpufreq drivers (Arnd Bergmann, Chunyu Hu, George Cherian, Viresh
     Kumar).

   - Drop memory allocation error messages from a few places in cpufreq
     and cpuildle drivers (Markus Elfring)"

* tag 'pm-4.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (56 commits)
  ACPI / PM: Fix keyboard wakeup from suspend-to-idle on ASUS UX331UA
  cpufreq: CPPC: Use transition_delay_us depending transition_latency
  PM / hibernate: Change message when writing to /sys/power/resume
  PM / hibernate: Make passing hibernate offsets more friendly
  cpuidle: poll_state: Avoid invoking local_clock() too often
  PM: cpuidle/suspend: Add s2idle usage and time state attributes
  cpuidle: Enable coupled cpuidle support on Exynos3250 platform
  cpuidle: poll_state: Add time limit to poll_idle()
  cpufreq: tegra186: Don't validate the frequency table twice
  cpufreq: speedstep: Don't validate the frequency table twice
  cpufreq: sparc: Don't validate the frequency table twice
  cpufreq: sh: Don't validate the frequency table twice
  cpufreq: sfi: Don't validate the frequency table twice
  cpufreq: scpi: Don't validate the frequency table twice
  cpufreq: sc520: Don't validate the frequency table twice
  cpufreq: s3c24xx: Don't validate the frequency table twice
  cpufreq: qoirq: Don't validate the frequency table twice
  cpufreq: pxa: Don't validate the frequency table twice
  cpufreq: ppc_cbe: Don't validate the frequency table twice
  cpufreq: powernow: Don't validate the frequency table twice
  ...
 2018-04-03 10:45:39 -07:00
Arnd Bergmann
02741b8ae1 pcmcia: remove blackfin driver 
The blackfin architecture is getting removed, so this one is no
longer needed either.

Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Acked-by: Aaron Wu <aaron.wu@analog.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2018-03-26 15:56:41 +02:00
Arnd Bergmann
10a27a29de pcmcia: remove m32r drivers 
The m32r architecture is getting removed, so these drivers
are no longer needed.

Acked-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2018-03-26 15:56:39 +02:00
Russell King
a00315d1b3 ARM: sa1100/h3xxx: switch h3xxx PCMCIA to use gpiod APIs 
Switch h3xxx's PCMCIA implementation to use the gpiod APIs where
possible.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2018-03-24 14:17:09 +00:00
Russell King
780febd5b7 ARM: sa1100/cerf: convert to generic CF sockets 
Convert Cerf to use the generic CF socket support.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2018-03-24 14:17:08 +00:00
Russell King
29786e9b65 ARM: sa1100/assabet: convert to generic CF sockets 
Convert Assabet to use the generic CF socket support.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2018-03-24 14:17:07 +00:00
Russell King
7be893aa2d pcmcia: sa1100: provide generic CF support 
Provide generic non-voltage sensing socket support for StrongARM
platforms using the gpiolib and regulator subsystems to obtain the
resources to control the socket.

Acked-by: Dominik Brodowski <linux@dominikbrodowski.net> (for drivers/pcmcia)
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2018-03-24 14:16:08 +00:00
Rafael J. Wysocki
dbdd0f58fd PCMCIA / PM: Avoid noirq suspend aborts during suspend-to-idle 
There is a problem with PCMCIA system resume callbacks with respect
to suspend-to-idle in which the ->suspend_noirq() callback may be
invoked after the ->resume_noirq() one without resuming the system
entirely in some cases.  This doesn't work for PCMCIA because of
the lack of symmetry between its system suspend and system resume
"noirq" callbacks.

The system resume handling in PCMCIA is split between
socket_early_resume() and socket_late_resume() which are called in
different phases of system resume and both need to run for
socket_suspend() (invoked by the system suspend "noirq" callback)
to work.  Specifically, socket_suspend() returns an error when
called after socket_early_resume() without socket_late_resume(),
so if the suspend-to-idle core detects a spurious wakeup event and
attempts to put the system back to sleep, that is aborted by the
error coming from socket_suspend().

Avoid that by using a new socket state flag, SOCKET_IN_RESUME,
to indicate that socket_early_resume() has already run for the
socket in which case socket_suspend() will do minimum handling
and return 0.

This change has been tested on my venerable Toshiba Portege R500
(which is where the problem has been discovered in the first place),
but admittedly I have no PCMCIA cards to test along with the socket
itself.

Fixes: 33e4f80ee6 (ACPI / PM: Ignore spurious SCI wakeups from suspend-to-idle)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[linux@dominikbrodowski.net: follow same codepaths for both suspend variants; call ->suspend()]
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2018-02-22 22:51:12 +01:00
Linus Torvalds
605dc7761d Merge branch 'pcmcia' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia 
Pull pcmcia updates from Dominik Brodowski:
 "The linux-pcmcia mailing list was shut down, so offer an alternative
  path for patches in MAINTAINERS.

  Also, throw in two odd fixes for the pcmcia subsystem"

* 'pcmcia' of git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia:
  pcmcia: soc_common: Handle return value of clk_prepare_enable
  pcmcia: use proper printk format for resource
  pcmcia: remove mailing list, update MAINTAINERS
 2018-02-08 11:48:49 -08:00
Arvind Yadav
d3fdd70124 pcmcia: soc_common: Handle return value of clk_prepare_enable 
clk_prepare_enable() can fail here and we must check its return value.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
CC: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2018-01-24 19:24:39 +01:00
Dominik Brodowski
3490a69bdd pcmcia: use proper printk format for resource 
Even though it is just in a dev_dbg statement, improve the printk format
to use %pr instead of plain %p.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2018-01-24 19:24:38 +01:00
Vasyl Gomonovych
1203839290 pcmcia: at91_cf: Use PTR_ERR_OR_ZERO() 
Fix ptr_ret.cocci warnings:
drivers/pcmcia/at91_cf.c:239:1-3: WARNING: PTR_ERR_OR_ZERO can be used

Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Vasyl Gomonovych <gomonovych@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
 2017-11-29 21:58:58 +01:00
Arnd Bergmann
d4258247d9 drivers/pcmcia/sa1111_badge4.c: avoid unused function warning 
pcmv_setup() is only used when the badge4 driver is built-in, but not
when it is a loadable module:

  drivers/pcmcia/sa1111_badge4.c:153:122: error: 'pcmv_setup' defined but not used [-Werror=unused-function]

This adds an #ifdef to avoid the definition of the unused function in
the modular case.

Link: http://lkml.kernel.org/r/20170911201133.3421636-1-arnd@arndb.de
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk@armlinux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2017-11-17 16:10:04 -08:00
Linus Torvalds
441692aafc Merge branch 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm 
Pull ARM updates from Russell King:

 - add support for ELF fdpic binaries on both MMU and noMMU platforms

 - linker script cleanups

 - support for compressed .data section for XIP images

 - discard memblock arrays when possible

 - various cleanups

 - atomic DMA pool updates

 - better diagnostics of missing/corrupt device tree

 - export information to allow userspace kexec tool to place images more
   inteligently, so that the device tree isn't overwritten by the
   booting kernel

 - make early_printk more efficient on semihosted systems

 - noMMU cleanups

 - SA1111 PCMCIA update in preparation for further cleanups

* 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: (38 commits)
  ARM: 8719/1: NOMMU: work around maybe-uninitialized warning
  ARM: 8717/2: debug printch/printascii: translate '\n' to "\r\n" not "\n\r"
  ARM: 8713/1: NOMMU: Support MPU in XIP configuration
  ARM: 8712/1: NOMMU: Use more MPU regions to cover memory
  ARM: 8711/1: V7M: Add support for MPU to M-class
  ARM: 8710/1: Kconfig: Kill CONFIG_VECTORS_BASE
  ARM: 8709/1: NOMMU: Disallow MPU for XIP
  ARM: 8708/1: NOMMU: Rework MPU to be mostly done in C
  ARM: 8707/1: NOMMU: Update MPU accessors to use cp15 helpers
  ARM: 8706/1: NOMMU: Move out MPU setup in separate module
  ARM: 8702/1: head-common.S: Clear lr before jumping to start_kernel()
  ARM: 8705/1: early_printk: use printascii() rather than printch()
  ARM: 8703/1: debug.S: move hexbuf to a writable section
  ARM: add additional table to compressed kernel
  ARM: decompressor: fix BSS size calculation
  pcmcia: sa1111: remove special sa1111 mmio accessors
  pcmcia: sa1111: use sa1111_get_irq() to obtain IRQ resources
  ARM: better diagnostics with missing/corrupt dtb
  ARM: 8699/1: dma-mapping: Remove init_dma_coherent_pool_size()
  ARM: 8698/1: dma-mapping: Mark atomic_pool as __ro_after_init
  ..
 2017-11-16 12:50:35 -08:00
Linus Torvalds
2bf16b7a73 Char/Misc patches for 4.15-rc1 
Here is the big set of char/misc and other driver subsystem patches for
 4.15-rc1.
 
 There are small changes all over here, hyperv driver updates, pcmcia
 driver updates, w1 driver updats, vme driver updates, nvmem driver
 updates, and lots of other little one-off driver updates as well.  The
 shortlog has the full details.
 
 Note, there will be a merge conflict in drivers/misc/lkdtm_core.c when
 merging to your tree as one lkdtm patch came in through the perf tree as
 well as this one.  The resolution is to take the const change that this
 tree provides.
 
 All of these have been in linux-next for quite a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc updates from Greg KH:
 "Here is the big set of char/misc and other driver subsystem patches
  for 4.15-rc1.

  There are small changes all over here, hyperv driver updates, pcmcia
  driver updates, w1 driver updats, vme driver updates, nvmem driver
  updates, and lots of other little one-off driver updates as well. The
  shortlog has the full details.

  All of these have been in linux-next for quite a while with no
  reported issues"

* tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (90 commits)
  VME: Return -EBUSY when DMA list in use
  w1: keep balance of mutex locks and refcnts
  MAINTAINERS: Update VME subsystem tree.
  nvmem: sunxi-sid: add support for A64/H5's SID controller
  nvmem: imx-ocotp: Update module description
  nvmem: imx-ocotp: Enable i.MX7D OTP write support
  nvmem: imx-ocotp: Add i.MX7D timing write clock setup support
  nvmem: imx-ocotp: Move i.MX6 write clock setup to dedicated function
  nvmem: imx-ocotp: Add support for banked OTP addressing
  nvmem: imx-ocotp: Pass parameters via a struct
  nvmem: imx-ocotp: Restrict OTP write to IMX6 processors
  nvmem: uniphier: add UniPhier eFuse driver
  dt-bindings: nvmem: add description for UniPhier eFuse
  nvmem: set nvmem->owner to nvmem->dev->driver->owner if unset
  nvmem: qfprom: fix different address space warnings of sparse
  nvmem: mtk-efuse: fix different address space warnings of sparse
  nvmem: mtk-efuse: use stack for nvmem_config instead of malloc'ing it
  nvmem: imx-iim: use stack for nvmem_config instead of malloc'ing it
  thunderbolt: tb: fix use after free in tb_activate_pcie_devices
  MAINTAINERS: Add git tree for Thunderbolt development
  ...
 2017-11-16 09:10:59 -08:00
Linus Torvalds
1b6115fbe3 pci-v4.15-changes 
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Merge tag 'pci-v4.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI updates from Bjorn Helgaas:

  - detach driver before tearing down procfs/sysfs (Alex Williamson)

  - disable PCIe services during shutdown (Sinan Kaya)

  - fix ASPM oops on systems with no Root Ports (Ard Biesheuvel)

  - fix ASPM LTR_L1.2_THRESHOLD programming (Bjorn Helgaas)

  - fix ASPM Common_Mode_Restore_Time computation (Bjorn Helgaas)

  - fix portdrv MSI/MSI-X vector allocation (Dongdong Liu, Bjorn
    Helgaas)

  - report non-fatal AER errors only to the affected endpoint (Gabriele
    Paoloni)

  - distribute bus numbers, MMIO, and I/O space among hotplug bridges to
    allow more devices to be hot-added (Mika Westerberg)

  - fix pciehp races during initialization and surprise link down (Mika
    Westerberg)

  - handle surprise-removed devices in PME handling (Qiang)

  - support resizable BARs for large graphics devices (Christian König)

  - expose SR-IOV offset, stride, and VF device ID via sysfs (Filippo
    Sironi)

  - create SR-IOV virtfn/physfn sysfs links before attaching driver
    (Stuart Hayes)

  - fix SR-IOV "ARI Capable Hierarchy" restore issue (Tony Nguyen)

  - enforce Kconfig IOV/REALLOC dependency (Sascha El-Sharkawy)

  - avoid slot reset if bridge itself is broken (Jan Glauber)

  - clean up pci_reset_function() path (Jan H. Schönherr)

  - make pci_map_rom() fail if the option ROM is invalid (Changbin Du)

  - convert timers to timer_setup() (Kees Cook)

  - move PCI_QUIRKS to PCI bus Kconfig menu (Randy Dunlap)

  - constify pci_dev_type and intel_mid_pci_ops (Bhumika Goyal)

  - remove unnecessary pci_dev, pci_bus, resource, pcibios_set_master()
    declarations (Bjorn Helgaas)

  - fix endpoint framework overflows and BUG()s (Dan Carpenter)

  - fix endpoint framework issues (Kishon Vijay Abraham I)

  - avoid broken Cavium CN8xxx bus reset behavior (David Daney)

  - extend Cavium ACS capability quirks (Vadim Lomovtsev)

  - support Synopsys DesignWare RC in ECAM mode (Ard Biesheuvel)

  - turn off dra7xx clocks cleanly on shutdown (Keerthy)

  - fix Faraday probe error path (Wei Yongjun)

  - support HiSilicon STB SoC PCIe host controller (Jianguo Sun)

  - fix Hyper-V interrupt affinity issue (Dexuan Cui)

  - remove useless ACPI warning for Hyper-V pass-through devices (Vitaly
    Kuznetsov)

  - support multiple MSI on iProc (Sandor Bodo-Merle)

  - support Layerscape LS1012a and LS1046a PCIe host controllers (Hou
    Zhiqiang)

  - fix Layerscape default error response (Minghuan Lian)

  - support MSI on Tango host controller (Marc Gonzalez)

  - support Tegra186 PCIe host controller (Manikanta Maddireddy)

  - use generic accessors on Tegra when possible (Thierry Reding)

  - support V3 Semiconductor PCI host controller (Linus Walleij)

* tag 'pci-v4.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (85 commits)
  PCI/ASPM: Add L1 Substates definitions
  PCI/ASPM: Reformat ASPM register definitions
  PCI/ASPM: Use correct capability pointer to program LTR_L1.2_THRESHOLD
  PCI/ASPM: Account for downstream device's Port Common_Mode_Restore_Time
  PCI: xgene: Rename xgene_pcie_probe_bridge() to xgene_pcie_probe()
  PCI: xilinx: Rename xilinx_pcie_link_is_up() to xilinx_pcie_link_up()
  PCI: altera: Rename altera_pcie_link_is_up() to altera_pcie_link_up()
  PCI: Fix kernel-doc build warning
  PCI: Fail pci_map_rom() if the option ROM is invalid
  PCI: Move pci_map_rom() error path
  PCI: Move PCI_QUIRKS to the PCI bus menu
  alpha/PCI: Make pdev_save_srm_config() static
  PCI: Remove unused declarations
  PCI: Remove redundant pci_dev, pci_bus, resource declarations
  PCI: Remove redundant pcibios_set_master() declarations
  PCI/PME: Handle invalid data when reading Root Status
  PCI: hv: Use effective affinity mask
  PCI: pciehp: Do not clear Presence Detect Changed during initialization
  PCI: pciehp: Fix race condition handling surprise link down
  PCI: Distribute available resources to hotplug-capable bridges
  ...
 2017-11-15 15:01:28 -08:00
Linus Torvalds
5bbcc0f595 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 
Pull networking updates from David Miller:
 "Highlights:

   1) Maintain the TCP retransmit queue using an rbtree, with 1GB
      windows at 100Gb this really has become necessary. From Eric
      Dumazet.

   2) Multi-program support for cgroup+bpf, from Alexei Starovoitov.

   3) Perform broadcast flooding in hardware in mv88e6xxx, from Andrew
      Lunn.

   4) Add meter action support to openvswitch, from Andy Zhou.

   5) Add a data meta pointer for BPF accessible packets, from Daniel
      Borkmann.

   6) Namespace-ify almost all TCP sysctl knobs, from Eric Dumazet.

   7) Turn on Broadcom Tags in b53 driver, from Florian Fainelli.

   8) More work to move the RTNL mutex down, from Florian Westphal.

   9) Add 'bpftool' utility, to help with bpf program introspection.
      From Jakub Kicinski.

  10) Add new 'cpumap' type for XDP_REDIRECT action, from Jesper
      Dangaard Brouer.

  11) Support 'blocks' of transformations in the packet scheduler which
      can span multiple network devices, from Jiri Pirko.

  12) TC flower offload support in cxgb4, from Kumar Sanghvi.

  13) Priority based stream scheduler for SCTP, from Marcelo Ricardo
      Leitner.

  14) Thunderbolt networking driver, from Amir Levy and Mika Westerberg.

  15) Add RED qdisc offloadability, and use it in mlxsw driver. From
      Nogah Frankel.

  16) eBPF based device controller for cgroup v2, from Roman Gushchin.

  17) Add some fundamental tracepoints for TCP, from Song Liu.

  18) Remove garbage collection from ipv6 route layer, this is a
      significant accomplishment. From Wei Wang.

  19) Add multicast route offload support to mlxsw, from Yotam Gigi"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (2177 commits)
  tcp: highest_sack fix
  geneve: fix fill_info when link down
  bpf: fix lockdep splat
  net: cdc_ncm: GetNtbFormat endian fix
  openvswitch: meter: fix NULL pointer dereference in ovs_meter_cmd_reply_start
  netem: remove unnecessary 64 bit modulus
  netem: use 64 bit divide by rate
  tcp: Namespace-ify sysctl_tcp_default_congestion_control
  net: Protect iterations over net::fib_notifier_ops in fib_seq_sum()
  ipv6: set all.accept_dad to 0 by default
  uapi: fix linux/tls.h userspace compilation error
  usbnet: ipheth: prevent TX queue timeouts when device not ready
  vhost_net: conditionally enable tx polling
  uapi: fix linux/rxrpc.h userspace compilation errors
  net: stmmac: fix LPI transitioning for dwmac4
  atm: horizon: Fix irq release error
  net-sysfs: trigger netlink notification on ifalias change via sysfs
  openvswitch: Using kfree_rcu() to simplify the code
  openvswitch: Make local function ovs_nsh_key_attr_size() static
  openvswitch: Fix return value check in ovs_meter_cmd_features()
  ...
 2017-11-15 11:56:19 -08:00
Linus Torvalds
2bcc673101 Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull timer updates from Thomas Gleixner:
 "Yet another big pile of changes:

   - More year 2038 work from Arnd slowly reaching the point where we
     need to think about the syscalls themself.

   - A new timer function which allows to conditionally (re)arm a timer
     only when it's either not running or the new expiry time is sooner
     than the armed expiry time. This allows to use a single timer for
     multiple timeout requirements w/o caring about the first expiry
     time at the call site.

   - A new NMI safe accessor to clock real time for the printk timestamp
     work. Can be used by tracing, perf as well if required.

   - A large number of timer setup conversions from Kees which got
     collected here because either maintainers requested so or they
     simply got ignored. As Kees pointed out already there are a few
     trivial merge conflicts and some redundant commits which was
     unavoidable due to the size of this conversion effort.

   - Avoid a redundant iteration in the timer wheel softirq processing.

   - Provide a mechanism to treat RTC implementations depending on their
     hardware properties, i.e. don't inflict the write at the 0.5
     seconds boundary which originates from the PC CMOS RTC to all RTCs.
     No functional change as drivers need to be updated separately.

   - The usual small updates to core code clocksource drivers. Nothing
     really exciting"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (111 commits)
  timers: Add a function to start/reduce a timer
  pstore: Use ktime_get_real_fast_ns() instead of __getnstimeofday()
  timer: Prepare to change all DEFINE_TIMER() callbacks
  netfilter: ipvs: Convert timers to use timer_setup()
  scsi: qla2xxx: Convert timers to use timer_setup()
  block/aoe: discover_timer: Convert timers to use timer_setup()
  ide: Convert timers to use timer_setup()
  drbd: Convert timers to use timer_setup()
  mailbox: Convert timers to use timer_setup()
  crypto: Convert timers to use timer_setup()
  drivers/pcmcia: omap1: Fix error in automated timer conversion
  ARM: footbridge: Fix typo in timer conversion
  drivers/sgi-xp: Convert timers to use timer_setup()
  drivers/pcmcia: Convert timers to use timer_setup()
  drivers/memstick: Convert timers to use timer_setup()
  drivers/macintosh: Convert timers to use timer_setup()
  hwrng/xgene-rng: Convert timers to use timer_setup()
  auxdisplay: Convert timers to use timer_setup()
  sparc/led: Convert timers to use timer_setup()
  mips: ip22/32: Convert timers to use timer_setup()
  ...
 2017-11-13 17:56:58 -08:00
Andy Shevchenko
24a0c654d7 PCI: Add for_each_pci_bridge() helper 
The following pattern is often used:

  list_for_each_entry(dev, &bus->devices, bus_list) {
    if (pci_is_bridge(dev)) {
      ...
    }
  }

Add a for_each_pci_bridge() helper to make that code easier to write and
read by reducing indentation level.  It also saves one or few lines of code
in each occurrence.

Convert PCI core parts here at the same time.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
[bhelgaas: fold in http://lkml.kernel.org/r/20171013165352.25550-1-andriy.shevchenko@linux.intel.com]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
 2017-11-06 18:48:58 -06:00
Kees Cook
439dc05fbf drivers/pcmcia: omap1: Fix error in automated timer conversion 
One part of automated timer conversion tools did not take into account
void * variables when searching out prior direct timer callback usage,
which resulted in an attempt to dereference the timer field without a
proper type.

Reported-by: kbuild test robot
Signed-off-by: Kees Cook <keescook@chromium.org>
 2017-11-06 12:49:15 -08:00
Kees Cook
e9c16affe0 drivers/pcmcia: omap1: Fix error in automated timer conversion 
One part of automated timer conversion tools did not take into account
void * variables when searching out prior direct timer callback usage,
which resulted in an attempt to dereference the timer field without a
proper type.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-11-05 11:30:48 +01:00
Kees Cook
32946cc2d5 drivers/pcmcia: Convert timers to use timer_setup() 
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: David Howells <dhowells@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-pcmcia@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-11-04 12:03:13 +01:00
David S. Miller
2a171788ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
Files removed in 'net-next' had their license header updated
in 'net'.  We take the remove from 'net-next'.

Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-11-04 09:26:51 +09:00
Kees Cook
41760d0e0f drivers/pcmcia: Convert timers to use timer_setup() 
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: David Howells <dhowells@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-pcmcia@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk> # for soc_common.c
 2017-11-02 15:50:50 -07:00
Greg Kroah-Hartman
b24413180f License cleanup: add SPDX GPL-2.0 license identifier to files with no license 
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.

By default all files without license information are under the default
license of the kernel, which is GPL version 2.

Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier.  The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.

This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.

How this work was done:

Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
 - file had no licensing information it it.
 - file was a */uapi/* one with no licensing information in it,
 - file was a */uapi/* one with existing licensing information,

Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.

The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne.  Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.

The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed.  Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.

Criteria used to select files for SPDX license identifier tagging was:
 - Files considered eligible had to be source code files.
 - Make and config files were included as candidates if they contained >5
   lines of source
 - File already had some variant of a license header in it (even if <5
   lines).

All documentation files were explicitly excluded.

The following heuristics were used to determine which SPDX license
identifiers to apply.

 - when both scanners couldn't find any license traces, file was
   considered to have no license information in it, and the top level
   COPYING file license applied.

   For non */uapi/* files that summary was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0                                              11139

   and resulted in the first patch in this series.

   If that file was a */uapi/* path one, it was "GPL-2.0 WITH
   Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:

   SPDX license identifier                            # files
   ---------------------------------------------------|-------
   GPL-2.0 WITH Linux-syscall-note                        930

   and resulted in the second patch in this series.

 - if a file had some form of licensing information in it, and was one
   of the */uapi/* ones, it was denoted with the Linux-syscall-note if
   any GPL family license was found in the file or had no licensing in
   it (per prior point).  Results summary:

   SPDX license identifier                            # files
   ---------------------------------------------------|------
   GPL-2.0 WITH Linux-syscall-note                       270
   GPL-2.0+ WITH Linux-syscall-note                      169
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
   ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
   LGPL-2.1+ WITH Linux-syscall-note                      15
   GPL-1.0+ WITH Linux-syscall-note                       14
   ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
   LGPL-2.0+ WITH Linux-syscall-note                       4
   LGPL-2.1 WITH Linux-syscall-note                        3
   ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
   ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1

   and that resulted in the third patch in this series.

 - when the two scanners agreed on the detected license(s), that became
   the concluded license(s).

 - when there was disagreement between the two scanners (one detected a
   license but the other didn't, or they both detected different
   licenses) a manual inspection of the file occurred.

 - In most cases a manual inspection of the information in the file
   resulted in a clear resolution of the license that should apply (and
   which scanner probably needed to revisit its heuristics).

 - When it was not immediately clear, the license identifier was
   confirmed with lawyers working with the Linux Foundation.

 - If there was any question as to the appropriate license identifier,
   the file was flagged for further research and to be revisited later
   in time.

In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.

Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights.  The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.

Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.

In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.

Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
 - a full scancode scan run, collecting the matched texts, detected
   license ids and scores
 - reviewing anything where there was a license detected (about 500+
   files) to ensure that the applied SPDX license was correct
 - reviewing anything where there was no detection but the patch license
   was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
   SPDX license was correct

This produced a worksheet with 20 files needing minor correction.  This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.

These .csv files were then reviewed by Greg.  Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected.  This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.)  Finally Greg ran the script using the .csv files to
generate the patches.

Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-11-02 11:10:55 +01:00
Kees Cook
35c3f85f5a pcmcia: m32r: Convert timers to use timer_setup() 
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: linux-pcmcia@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-10-20 15:17:44 +02:00
Kees Cook
80c5a20b53 pcmcia/electra_cf: Convert timers to use timer_setup() 
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linux-pcmcia@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2017-10-18 12:39:37 +01:00
Bhumika Goyal
c151206b30 pcmcia: make pccard_cis_attr const 
Make this const as it is only passed to the const arguments of the
functions sysfs_remove_bin_file and sysfs_create_bin_file. Make the
declaration const too.

Structure found using Coccinelle and changes done by hand.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-10-04 10:39:55 +02:00
Russell King
de854b336d pcmcia: sa1111: remove special sa1111 mmio accessors 
Remove the special SA1111 MMIO accessors from the SA1111 PCMCIA driver
as their definition will be removed shortly.  The SA1111 accessors are
barrierless, so use the _relaxed variants.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2017-10-03 13:24:11 +01:00
Russell King
7170a3124c pcmcia: sa1111: use sa1111_get_irq() to obtain IRQ resources 
Use the newly provided sa1111_get_irq() to fetch the IRQ resources for
the SA1111 PCMCIA driver.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2017-10-03 13:24:11 +01:00
Manuel Lauss
cc10815e2f MIPS: Alchemy: Threaded carddetect irqs for devboards 
This introduces threaded carddetect irqs for the db1200/db1300 boards.
Main benefit is that the broken insertion/ejection interrupt pairs
can now be better supported and debounced in software.

Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/15287/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2017-08-29 15:21:53 +02:00
Greg Kroah-Hartman
ad8f20a458 pcmcia: ds: convert to use DRIVER_ATTR_RO 
We are trying to get rid of DRIVER_ATTR(), and the pcmcia driver's
attribute can be trivially changed to use DRIVER_ATTR_RO().

Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: <linux-pcmcia@lists.infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2017-06-12 16:14:30 +02:00
Linus Torvalds
291b38a756 Annotation of module parameters that specify device settings 
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Merge tag 'hwparam-20170420' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs

Pull hw lockdown support from David Howells:
 "Annotation of module parameters that configure hardware resources
  including ioports, iomem addresses, irq lines and dma channels.

  This allows a future patch to prohibit the use of such module
  parameters to prevent that hardware from being abused to gain access
  to the running kernel image as part of locking the kernel down under
  UEFI secure boot conditions.

  Annotations are made by changing:

        module_param(n, t, p)
        module_param_named(n, v, t, p)
        module_param_array(n, t, m, p)

  to:

        module_param_hw(n, t, hwtype, p)
        module_param_hw_named(n, v, t, hwtype, p)
        module_param_hw_array(n, t, hwtype, m, p)

  where the module parameter refers to a hardware setting

  hwtype specifies the type of the resource being configured. This can
  be one of:

        ioport          Module parameter configures an I/O port
        iomem           Module parameter configures an I/O mem address
        ioport_or_iomem Module parameter could be either (runtime set)
        irq             Module parameter configures an I/O port
        dma             Module parameter configures a DMA channel
        dma_addr        Module parameter configures a DMA buffer address
        other           Module parameter configures some other value

  Note that the hwtype is compile checked, but not currently stored (the
  lockdown code probably won't require it). It is, however, there for
  future use.

  A bonus is that the hwtype can also be used for grepping.

  The intention is for the kernel to ignore or reject attempts to set
  annotated module parameters if lockdown is enabled. This applies to
  options passed on the boot command line, passed to insmod/modprobe or
  direct twiddling in /sys/module/ parameter files.

  The module initialisation then needs to handle the parameter not being
  set, by (1) giving an error, (2) probing for a value or (3) using a
  reasonable default.

  What I can't do is just reject a module out of hand because it may
  take a hardware setting in the module parameters. Some important
  modules, some ipmi stuff for instance, both probe for hardware and
  allow hardware to be manually specified; if the driver is aborts with
  any error, you don't get any ipmi hardware.

  Further, trying to do this entirely in the module initialisation code
  doesn't protect against sysfs twiddling.

  [!] Note that in and of itself, this series of patches should have no
      effect on the the size of the kernel or code execution - that is
      left to a patch in the next series to effect. It does mark
      annotated kernel parameters with a KERNEL_PARAM_FL_HWPARAM flag in
      an already existing field"

* tag 'hwparam-20170420' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs: (38 commits)
  Annotate hardware config module parameters in sound/pci/
  Annotate hardware config module parameters in sound/oss/
  Annotate hardware config module parameters in sound/isa/
  Annotate hardware config module parameters in sound/drivers/
  Annotate hardware config module parameters in fs/pstore/
  Annotate hardware config module parameters in drivers/watchdog/
  Annotate hardware config module parameters in drivers/video/
  Annotate hardware config module parameters in drivers/tty/
  Annotate hardware config module parameters in drivers/staging/vme/
  Annotate hardware config module parameters in drivers/staging/speakup/
  Annotate hardware config module parameters in drivers/staging/media/
  Annotate hardware config module parameters in drivers/scsi/
  Annotate hardware config module parameters in drivers/pcmcia/
  Annotate hardware config module parameters in drivers/pci/hotplug/
  Annotate hardware config module parameters in drivers/parport/
  Annotate hardware config module parameters in drivers/net/wireless/
  Annotate hardware config module parameters in drivers/net/wan/
  Annotate hardware config module parameters in drivers/net/irda/
  Annotate hardware config module parameters in drivers/net/hamradio/
  Annotate hardware config module parameters in drivers/net/ethernet/
  ...
 2017-05-10 19:13:03 -07:00
David Howells
9149ba1fc2 Annotate hardware config module parameters in drivers/pcmcia/ 
When the kernel is running in secure boot mode, we lock down the kernel to
prevent userspace from modifying the running kernel image.  Whilst this
includes prohibiting access to things like /dev/mem, it must also prevent
access by means of configuring driver modules in such a way as to cause a
device to access or modify the kernel image.

To this end, annotate module_param* statements that refer to hardware
configuration and indicate for future reference what type of parameter they
specify.  The parameter parser in the core sees this information and can
skip such parameters with an error message if the kernel is locked down.
The module initialisation then runs as normal, but just sees whatever the
default values for those parameters is.

Note that we do still need to do the module initialisation because some
drivers have viable defaults set in case parameters aren't specified and
some drivers support automatic configuration (e.g. PNP or PCI) in addition
to manually coded parameters.

This patch annotates drivers in drivers/pcmcia/.

Suggested-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-pcmcia@lists.infradead.org
 2017-04-20 12:02:32 +01:00
Michael Ellerman
6c8343e82b drivers/pcmcia: NO_IRQ removal for electra_cf.c 
We'd like to eventually remove NO_IRQ on powerpc, so remove usages of it
from electra_cf.c which is a powerpc-only driver.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2017-03-21 22:09:28 +11:00
Sudip Mukherjee
3da82065f1 drivers/pcmcia/m32r_pcc.c: check return from add_pcc_socket 
If request_irq() fails it passes the error to the caller.  The caller
now checks it and jumps to the common error path on failure.

Link: http://lkml.kernel.org/r/1474237304-897-3-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2016-12-12 18:55:06 -08:00
Sudip Mukherjee
c795cf4f18 drivers/pcmcia/m32r_pcc.c: use common error path 
Use a common error path for the failure.

Link: http://lkml.kernel.org/r/1474237304-897-2-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2016-12-12 18:55:06 -08:00
Sudip Mukherjee
4170a20f21 drivers/pcmcia/m32r_pcc.c: check return from request_irq 
While building m32r allmodconfig we were getting warning:

  drivers/pcmcia/m32r_pcc.c:331:2: warning: ignoring return value of 'request_irq', declared with attribute warn_unused_result

request_irq() can fail and we should always be checking the result from
it. Check the result and return it to the caller.

Link: http://lkml.kernel.org/r/1474237304-897-1-git-send-email-sudipm.mukherjee@gmail.com
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2016-12-12 18:55:06 -08:00
Arnd Bergmann
75ed26878b pcmcia: fix return value of soc_pcmcia_regulator_set 
The newly introduced soc_pcmcia_regulator_set() function sometimes
returns without setting its return code, as shown by this warning:

  drivers/pcmcia/soc_common.c: In function 'soc_pcmcia_regulator_set':
  drivers/pcmcia/soc_common.c:112:5: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]

This changes it to propagate the regulator_disable() result instead.

Fixes: ac61b6001a ("pcmcia: soc_common: add support for Vcc and Vpp regulators")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2016-11-11 08:45:08 -08:00
Russell King
4a5d67d734 pcmcia: soc_common: add driver-data pointer 
Add a driver-data pointer so that low level drivers can add additional
data to the soc_common pcmcia socket structure.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:39:16 +01:00
Russell King
5805271d90 pcmcia: soc_common: add support for voltage sense GPIOs 
Add support for the voltage sense GPIOs which are wired up on some
platforms.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:39:04 +01:00
Russell King
c8f9ce556b pcmcia: soc_common: constify pcmcia_low_level ops pointer 
Constify the pcmcia_low_level operation pointer to soc_pcmcia_init_one()
which has no need to modify it.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:39:04 +01:00
Russell King
fb8c9959a3 pcmcia: soc_common: switch to a per-socket cpufreq notifier 
Switch to a per-socket cpufreq notifier rather than a global notifier.
This allows each socket to be self-contained.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:39:03 +01:00
Russell King
ac61b6001a pcmcia: soc_common: add support for Vcc and Vpp regulators 
Add support for handling supply regulators in the soc_common code.  This
allows us to separate out the board specifics for setting voltages from
the PCMCIA code.

We detect when setting a voltage fails, and report this fact - some
platforms have fixed-voltage supplies (eg, for CF sockets at 3.3V) and
we need to ignore attempts to configure for 5V, as per the existing
board specific drivers.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:39:02 +01:00
Russell King
a1d0500261 pcmcia: soc_common: add CF socket state helper 
Add a helper to get the voltage state of CF sockets, where the voltage
sense pins are not wired up.  Switch assabet and cerf to use this
helper.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:39:01 +01:00
Russell King
6ac95d8212 pcmcia: soc_common: restore previous socket state on error 
If an attempt to set a socket state returns an error, restore the
previous socket state.  If restoring the previous socket state
fails, warn about this.

This allows us to have simple error handling in the socket state
configuration handlers - there is no need for every handler
implementation to manually undo the updates, which can be complex
when regulators are involved.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:39:00 +01:00
Russell King
535e0abc05 pcmcia: soc_common: add support for reset and bus enable GPIOs 
Add support to soc_common for controlling reset and bus enable GPIOs
from within the generic soc_common layer, rather than having
individual drivers having to perform this themselves.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:38:59 +01:00
Russell King
7bfe49785b pcmcia: soc_common: request legacy detect GPIO with active low 
Request the legacy card detect signal with the active low property and
remove our own negation of the detection value.  This allows us to use
the firmware-defined polarities rather than hard-coding it into the
driver.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:38:58 +01:00
Russell King
a494119123 pcmcia: soc_common: ignore invalid interrupts 
If gpiod_to_irq() returns an invalid interrupt, we should not try to use
it as an interrupt number.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:38:57 +01:00
Russell King
45ca7536d4 pcmcia: soc_common: switch to using gpio_descs 
Switch to using the gpiod_* consumer API rather than the legacy API.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:38:56 +01:00
Russell King
59ecfefad5 pcmcia: soc_common: use devm_gpio_request_one() 
Use devm_gpio_request_one() to request the GPIOs so we can avoid
manual clean up these gpio resources.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-22 09:38:55 +01:00
Robert Jarzmik
817ed5748e pcmcia: lubbock: fix sockets configuration 
On lubbock board, the probe of the driver crashes by dereferencing very
early a platform_data structure which is not set, in
pxa2xx_configure_sockets().

The stack fixed is :
[    0.244353] SA1111 Microprocessor Companion Chip: silicon revision 1, metal revision 1
[    0.256321] sa1111 sa1111: Providing IRQ336-390
[    0.340899] clocksource: Switched to clocksource oscr0
[    0.472263] Unable to handle kernel NULL pointer dereference at virtual address 00000004
[    0.480469] pgd = c0004000
[    0.483432] [00000004] *pgd=00000000
[    0.487105] Internal error: Oops: f5 [#1] ARM
[    0.491497] Modules linked in:
[    0.494650] CPU: 0 PID: 1 Comm: swapper Not tainted 4.8.0-rc3-00080-g1aaa68426f0c-dirty #2068
[    0.503229] Hardware name: Intel DBPXA250 Development Platform (aka Lubbock)
[    0.510344] task: c3e42000 task.stack: c3e44000
[    0.514984] PC is at pxa2xx_configure_sockets+0x4/0x24 (drivers/pcmcia/pxa2xx_base.c:227)
[    0.520193] LR is at pcmcia_lubbock_init+0x1c/0x38
[    0.525079] pc : [<c0247c30>]    lr : [<c02479b0>]    psr: a0000053
[    0.525079] sp : c3e45e70  ip : 100019ff  fp : 00000000
[    0.536651] r10: c0828900  r9 : c0434838  r8 : 00000000
[    0.541953] r7 : c0820700  r6 : c0857b30  r5 : c3ec1400  r4 : c0820758
[    0.548549] r3 : 00000000  r2 : 0000000c  r1 : c3c09c40  r0 : c3ec1400
[    0.555154] Flags: NzCv  IRQs on  FIQs off  Mode SVC_32  ISA ARM  Segment none
[    0.562450] Control: 0000397f  Table: a0004000  DAC: 00000053
[    0.568257] Process swapper (pid: 1, stack limit = 0xc3e44190)
[    0.574154] Stack: (0xc3e45e70 to 0xc3e46000)
[    0.578610] 5e60:                                     c4849800 00000000 c3ec1400 c024769c
[    0.586928] 5e80: 00000000 c3ec140c c3c0ee0c c3ec1400 c3ec1434 c020c410 c3ec1400 c3ec1434
[    0.595244] 5ea0: c0820700 c080b408 c0828900 c020c5f8 00000000 c0820700 c020c578 c020ac5c
[    0.603560] 5ec0: c3e687cc c3e71e10 c0820700 00000000 c3c02de0 c020bae4 c03c62f7 c03c62f7
[    0.611872] 5ee0: c3e68780 c0820700 c042e034 00000000 c043c440 c020cdec c080b408 00000005
[    0.620188] 5f00: c042e034 c00096c0 c0034440 c01c730c 20000053 ffffffff 00000000 00000000
[    0.628502] 5f20: 00000000 c3ffcb87 c3ffcb90 c00346ac c3e66ba0 c03f7914 00000092 00000005
[    0.636811] 5f40: 00000005 c03f847c 00000091 c03f847c 00000000 00000005 c0434828 00000005
[    0.645125] 5f60: c043482c 00000092 c043c440 c0828900 c0434838 c0418d2c 00000005 00000005
[    0.653430] 5f80: 00000000 c041858c 00000000 c032e9f0 00000000 00000000 00000000 00000000
[    0.661729] 5fa0: 00000000 c032e9f8 00000000 c000f0f0 00000000 00000000 00000000 00000000
[    0.670020] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[    0.678311] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000
[    0.686673] (pxa2xx_configure_sockets) from pcmcia_lubbock_init (/drivers/pcmcia/sa1111_lubbock.c:161)
[    0.696026] (pcmcia_lubbock_init) from pcmcia_probe (/drivers/pcmcia/sa1111_generic.c:213)
[    0.704358] (pcmcia_probe) from driver_probe_device (/drivers/base/dd.c:378 /drivers/base/dd.c:499)
[    0.712848] (driver_probe_device) from __driver_attach (/./include/linux/device.h:983 /drivers/base/dd.c:733)
[    0.721414] (__driver_attach) from bus_for_each_dev (/drivers/base/bus.c:313)
[    0.729723] (bus_for_each_dev) from bus_add_driver (/drivers/base/bus.c:708)
[    0.738036] (bus_add_driver) from driver_register (/drivers/base/driver.c:169)
[    0.746185] (driver_register) from do_one_initcall (/init/main.c:778)
[    0.754561] (do_one_initcall) from kernel_init_freeable (/init/main.c:843 /init/main.c:851 /init/main.c:869 /init/main.c:1016)
[    0.763409] (kernel_init_freeable) from kernel_init (/init/main.c:944)
[    0.771660] (kernel_init) from ret_from_fork (/arch/arm/kernel/entry-common.S:119)
[ 0.779347] Code: c03c6305 c03c631e c03c632e e5903048 (e993000c)
All code
========
   0:	c03c6305 	eorsgt	r6, ip, r5, lsl #6
   4:	c03c631e 	eorsgt	r6, ip, lr, lsl r3
   8:	c03c632e 	eorsgt	r6, ip, lr, lsr #6
   c:	e5903048 	ldr	r3, [r0, #72]	; 0x48
  10:*	e993000c 	ldmib	r3, {r2, r3}		<-- trapping instruction

Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-12 10:57:01 +01:00
Russell King
3f8df892b2 pcmcia: sa1111: fix propagation of lowlevel board init return code 
When testing Lubbock, it was noticed that the sa1111 pcmcia driver bound
but was not functional due to no sockets being registered.  This is
because the return code from the lowlevel board initialisation was not
being propagated out of the probe function.  Fix this.

Tested-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-12 10:57:01 +01:00
Russell King
a466ebd2fc pcmcia: soc_common: fix SS_STSCHG polarity 
SS_STSCHG should be set for an IO card when the BVD1 signal is asserted
low, not high.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-12 10:57:01 +01:00
Russell King
cbd5a16820 pcmcia: sa11xx_base: add units to the timing information 
Add units to the timing information, so we know that the numbers are
nanoseconds.  The output changes from:

I/O      : 165 (172)
attribute: 300 (316)
common   : 300 (316)

to:

I/O      : 165ns (172ns)
attribute: 300ns (316ns)
common   : 300ns (316ns)

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-12 10:57:01 +01:00
Russell King
6dec04e8f3 pcmcia: sa11xx_base: fix reporting of timing information 
Fix the reporting of the currently programmed timing information.  These
entries have been showing zero due to the clock rate being a factor of
1000 too big.  With this change, we go from:

I/O      : 165 (0)
attribute: 300 (0)
common   : 300 (0)

to:

I/O      : 165 (172)
attribute: 300 (316)
common   : 300 (316)

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-12 10:57:00 +01:00
Russell King
ad8d52b897 pcmcia: ds: fix suspend/resume 
PCMCIA suspend/resume no longer works since the commit mentioned below,
as the callbacks are no longer made.  Convert the driver to the new
dev_pm_ops, which restores the suspend/resume functionality.  Tested on
the arm arch Assabet platform.

Fixes: aa8e54b559 ("PM / sleep: Go direct_complete if driver has no callbacks")
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
 2016-09-12 10:57:00 +01:00
Aneesh Kumar K.V
72176dd0ad powerpc/mm: Use a helper for finding pte bits mapping I/O area 
Use a helper instead of open coding with constants. A later patch will
drop the WIMG bits and use PowerISA 3.0 defines.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 2016-05-01 18:32:32 +10:00
Manuel Lauss
e34b6fcf9b pcmcia: db1xxx_ss: fix last irq_to_gpio user 
remove the usage of removed irq_to_gpio() function.  On pre-DB1200
boards, pass the actual carddetect GPIO number instead of the IRQ,
because we need the gpio to actually test card status (inserted or
not) and can get the irq number with gpio_to_irq() instead.

Tested on DB1300 and DB1500, this patch fixes PCMCIA on the DB1500,
which used irq_to_gpio().

Fixes: 832f5dacfa ("MIPS: Remove all the uses of custom gpio.h")
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-pcmcia@lists.infradead.org
Cc: Linux-MIPS <linux-mips@linux-mips.org>
Cc: stable@vger.kernel.org	# v4.3+
Patchwork: https://patchwork.linux-mips.org/patch/12747/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
 2016-03-29 22:48:53 +02:00
Bjorn Helgaas
288e6eaa06 gpio: Include linux/gpio.h instead of asm/gpio.h 
Most arches have an asm/gpio.h that merely includes linux/gpio.h.  The
others select ARCH_HAVE_CUSTOM_GPIO_H, and when that's selected,
linux/gpio.h includes asm/gpio.h.

Therefore, code should include linux/gpio.h instead of including asm/gpio.h
directly.

Remove includes of asm/gpio.h, adding an include of linux/gpio.h when
necessary.

This is a follow-on to 7563bbf89d ("gpiolib/arches: Centralise
bolierplate asm/gpio.h").

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
 2016-02-16 00:20:03 +01:00
Geliang Tang
7c22e645cd pcmcia: use kstrdup() in pcmcia_device_query() 
Use kstrdup instead of kmalloc and strncpy.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2015-10-05 04:47:09 +01:00
Russell King
fca8b807a6 pcmcia: soc_common: remove skt_dev_info's clk pointer 
We no longer need to store the clk pointer in struct skt_dev_info as we
no longer need to remember the clk pointer for the cleanup paths.

Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2015-09-03 16:01:03 +01:00
Russell King
c3eb700c5d pcmcia: sa11xx_base.c: remove useless init/exit functions 
A library module is not required to have module init/exit functions.
Get rid of these unnecessary functions.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2015-09-03 16:00:44 +01:00
Russell King
321ae9646b pcmcia: sa1111: simplify clk handing in sa1111_pcmcia_add() 
clk_get(dev, NULL) will always refer to the same clock, so it's
pointless calling this multiple times for the same device.  As we no
longer have to worry about the cleanup (via use of devm_clk_get()) we
can simplify sa1111_pcmcia_add() too.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2015-09-03 16:00:44 +01:00
Russell King
924e5ea2ce pcmcia: sa1111: update socket driver to use devm_clk_get() API 
Update the pxa2xx socket driver to use the devm_clk_get() API so that
the cleanup paths are simplified.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2015-09-03 16:00:44 +01:00
Russell King
8e2caf0d21 pcmcia: pxa2xx: convert memory allocation to devm_* API 
Convert the pxa2xx socket driver memory allocation to use devm_kzalloc()
to simplify the cleanup path.

Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2015-09-03 16:00:38 +01:00
Russell King
ac92f15173 pcmcia: pxa2xx: update socket driver to use devm_clk_get() API 
Update the pxa2xx socket driver to use the devm_clk_get() API so that
the cleanup paths are simplified.

Reviewed-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2015-09-03 16:00:13 +01:00
Russell King
e33e640ad0 pcmcia: sa11x0: convert memory allocation to devm_* API 
Convert the sa11x0 socket driver memory allocation to use devm_kzalloc()
to simplify the cleanup path.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2015-07-08 11:29:56 +01:00
Russell King
72010aca55 pcmcia: sa11x0: fix missing clk_put() in sa11x0 socket drivers 
Fix the lack of clk_put() in sa11xx_base.c's error cleanup paths by
converting the driver to the devm_* API.

Fixes: 86d88bfca4 ("ARM: 8247/2: pcmcia: sa1100: make use of device clock")
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
 2015-07-08 11:29:55 +01:00
Linus Torvalds
9d86b4128c Fix up implicit <module.h> users that will break later. 
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Merge tag 'module-implicit-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux

Pull implicit module.h fixes from Paul Gortmaker:
 "Fix up implicit <module.h> users that will break later.

  The files changed here are simply modular source files that are
  implicitly relying on <module.h> being present.  We fix them up now,
  so that we can decouple some of the module related init code from the
  core init code in the future.

  The addition of the module.h include to several files here is also a
  no-op from a code generation point of view, else there would already
  be compile issues with these files today.

  There may be lots more implicit includes of <module.h> in tree, but
  these are the ones that extensive build test coverage has shown that
  must be fixed in order to avoid build breakage fallout for the pending
  module.h <---> init.h code relocation we desire to complete"

* tag 'module-implicit-v4.1-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux:
  frv: add module.h to mb93090-mb00/flash.c to avoid compile fail
  drivers/cpufreq: include <module.h> for modular exynos-cpufreq.c code
  drivers/staging: include <module.h> for modular android tegra_ion code
  crypto/asymmetric_keys: pkcs7_key_type needs module.h
  sh: mach-highlander/psw.c is tristate and should use module.h
  drivers/regulator: include <module.h> for modular max77802 code
  drivers/pcmcia: include <module.h> for modular xxs1500_ss code
  drivers/hsi: include <module.h> for modular omap_ssi code
  drivers/gpu: include <module.h> for modular rockchip code
  drivers/gpio: include <module.h> for modular crystalcove code
  drivers/clk: include <module.h> for clk-max77xxx modular code
 2015-07-02 10:25:22 -07:00
Linus Torvalds
d87823813f Char/Misc driver patches for 4.2-rc1 
Here's the big char/misc driver pull request for 4.2-rc1.
 
 Lots of mei, extcon, coresight, uio, mic, and other driver updates in
 here.  Full details in the shortlog.  All of these have been in
 linux-next for some time with no reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc driver updates from Greg KH:
 "Here's the big char/misc driver pull request for 4.2-rc1.

  Lots of mei, extcon, coresight, uio, mic, and other driver updates in
  here.  Full details in the shortlog.  All of these have been in
  linux-next for some time with no reported problems"

* tag 'char-misc-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (176 commits)
  mei: me: wait for power gating exit confirmation
  mei: reset flow control on the last client disconnection
  MAINTAINERS: mei: add mei_cl_bus.h to maintained file list
  misc: sram: sort and clean up included headers
  misc: sram: move reserved block logic out of probe function
  misc: sram: add private struct device and virt_base members
  misc: sram: report correct SRAM pool size
  misc: sram: bump error message level on unclean driver unbinding
  misc: sram: fix device node reference leak on error
  misc: sram: fix enabled clock leak on error path
  misc: mic: Fix reported static checker warning
  misc: mic: Fix randconfig build error by including errno.h
  uio: pruss: Drop depends on ARCH_DAVINCI_DA850 from config
  uio: pruss: Add CONFIG_HAS_IOMEM dependence
  uio: pruss: Include <linux/sizes.h>
  extcon: Redefine the unique id of supported external connectors without 'enum extcon' type
  char:xilinx_hwicap:buffer_icap - change 1/0 to true/false for bool type variable in function buffer_icap_set_configuration().
  Drivers: hv: vmbus: Allocate ring buffer memory in NUMA aware fashion
  parport: check exclusive access before register
  w1: use correct lock on error in w1_seq_show()
  ...
 2015-06-26 14:51:15 -07:00
Linus Torvalds
c11d716218 ARM: SoC cleanups for v4.2 
A relatively small setup of cleanups this time around, and similar to last time
 the bulk of it is removal of legacy board support:
 
 - OMAP: removal of legacy (non-DT) booting for several platforms
 - i.MX: remove some legacy board files
 
 Conflicts: None
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Kevin Hilman:
 "A relatively small setup of cleanups this time around, and similar to
  last time the bulk of it is removal of legacy board support:

   - OMAP: removal of legacy (non-DT) booting for several platforms

   - i.MX: remove some legacy board files"

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (36 commits)
  ARM: fix EFM32 build breakage caused by cpu_resume_arm
  ARM: 8389/1: Add cpu_resume_arm() for firmwares that resume in ARM state
  ARM: v7 setup function should invalidate L1 cache
  mach-omap2: Remove use of deprecated marco, PTR_RET in devices.c
  ARM: OMAP2+: Remove calls to deprecacted marco,PTR_RET in the files,fb.c and pmu.c
  ARM: OMAP2+: Constify irq_domain_ops
  ARM: OMAP2+: use symbolic defines for console loglevels instead of numbers
  ARM: at91: remove useless Makefile.boot
  ARM: at91: remove at91rm9200_sdramc.h
  ARM: at91: remove mach/at91_ramc.h and mach/at91rm9200_mc.h
  ARM: at91/pm: use the atmel-mc syscon defines
  pcmcia: at91_cf: Use syscon to configure the MC/smc
  ARM: at91: declare the at91rm9200 memory controller as a syscon
  mfd: syscon: Add Atmel MC (Memory Controller) registers definition
  ARM: at91: drop sam9_smc.c
  ata: at91: use syscon to configure the smc
  ARM: ux500: delete static resource defines
  ARM: ux500: rename ux500_map_io
  ARM: ux500: look up PRCMU resource from DT
  ARM: ux500: kill off L2CC static map
  ...
 2015-06-26 11:08:27 -07:00
Paul Gortmaker
5468f887bc drivers/pcmcia: include <module.h> for modular xxs1500_ss code 
This file is built off of a tristate Kconfig option and also contains
modular function calls so it should explicitly include module.h to
avoid compile breakage during header shuffles done in the future.

Cc: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Cc: linux-pcmcia@lists.infradead.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
 2015-06-16 14:12:25 -04:00
Dominik Brodowski
e8e68fd86d pcmcia: do not break rsrc_nonstatic when handling anonymous cards 
Patch 1c6c9b1d9d caused a regression for rsrc_nonstatic: It relies
on pccard_validate_cis() to determine whether an iomem resource can
be used for PCMCIA cards. This override, however, lead invalid iomem
resources to be accepted -- and lead to a fake CIS being used instead
of the original CIS.

To fix this issue, move the override for anonymous cards to the one
place where it is needed -- when adding a PCMCIA device.

Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-06-16 07:29:39 +02:00
Takeshi Yoshimura
d19319affb pcmcia: Fix resource leaks in yenta_probe() and _close() 
There are some resource leaks in yenta_probe() and _close(). I fixed
the following issues with some code cleanups. Thanks to Dominik's
suggestions.

On the error path in yenta_probe():
- a requested irq is not released
- yenta_free_resources() and pci_set_drvdata(dev, NULL) are not called

In yenta_close():
- kfree(sock) is not called
- sock->base is always set to non-NULL when yenta_close() is called,
  therefore the check in yenta_close() is not necessary.

Signed-off-by: Takeshi Yoshimura <yos@sslab.ics.keio.ac.jp>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-06-14 21:35:45 +02:00
Ryan Underwood
2fb22a8042 Disable write buffering on Toshiba ToPIC95 
Disable write buffering on the Toshiba ToPIC95 if it is enabled by
somebody (it is not supposed to be a power-on default according to
the datasheet). On the ToPIC95, practically no 32-bit Cardbus card
will work under heavy load without locking up the whole system if
this is left enabled. I tried about a dozen. It does not affect
16-bit cards. This is similar to the O2 bugs in early controller
revisions it seems.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=55961
Cc: <stable@vger.kernel.org>
Signed-off-by: Ryan C. Underwood <nemesis@icequake.net>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-06-13 23:40:21 +02:00
Joe Perches
f2e6cf7675 pcmcia: Convert dev_printk to dev_<level> 
Reduce object size a little by using dev_<level>
calls instead of dev_printk(KERN_<LEVEL>.

Other miscellanea:

o Coalesce formats
o Realign arguments
o Use pr_cont instead of naked printk
  reorder test to use "%s\n"

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-05-30 16:09:04 +02:00
Himangi Saraogi
3ce3c1c4fe pcmcia/vrc4171: Remove typedefs for enums and struct 
The Linux kernel coding style guidelines suggest not using typedefs
for structure and enum types. This patch gets rid of the typedefs for
vrc4171_slot_t, vrc4171_slotb_t and vrc4171_socket_t. Also, the names
of the enums and the struct are changed to drop the _t, to make the
name look less typedef-like.

The following Coccinelle semantic patch detects the cases for struct type:

@tn@
identifier i;
type td;
@@

-typedef
 struct i { ... }
-td
 ;

@@
type tn.td;
identifier tn.i;
@@

-td
+ struct i

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-05-30 15:55:36 +02:00
Himangi Saraogi
8b0eb8377d pcmcia: Remove typedef in structs and emum 
The Linux kernel coding style guidelines suggest not using typedefs
for structure and enum types. This patch gets rid of the typedefs for
cirrus_state_t, vg46x_state_t and pcic_id. Also, the names of the structs
are changed to drop the _t, to make the name look less typedef-like.

The following Coccinelle semantic patch detects the cases for struct type:

@tn@
identifier i;
type td;
@@

-typedef
 struct i { ... }
-td
 ;

@@
type tn.td;
identifier tn.i;
@@

-td
+ struct i

[linux@dominikbrodowski.net: fix patch to apply cleanly after e632cd9472
 was applied first]
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-05-30 15:54:05 +02:00
Himangi Saraogi
820dc8464e pcmcia: Remove typedef tuple_flags 
The Linux kernel coding style guidelines suggest not using typedefs
for structure types. This patch gets rid of the typedef for tuple_flags.

The following Coccinelle semantic patch makes the transformation.

@tn@
identifier i;
type td;
@@

-typedef
 struct i { ... }
-td
 ;

@@
type tn.td;
identifier tn.i;
@@

-td
+ struct i

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-05-30 15:50:21 +02:00
Laurent Navet
0f06abd38e drivers: pcmcia: electra_cf.c fix checkpatch error and warnings 
fix these checkpatch errors and warning:
- ERROR: "foo *           bar" should be "foo *bar"
- WARNING: please, no space before tabs
- WARNING: sizeof *cf should be sizeof(*cf)
- WARNING: space prohibited between function name and open parenthesis '('i

Signed-off-by: Laurent Navet <laurent.navet@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-05-30 15:32:53 +02:00
Laurent Navet
46f533ccb8 drivers: pcmcia: ds.c fix checkpatch errors 
fix these checkpatch errors :
- ERROR: spaces required around that '<' (ctx:VxW)
- ERROR: "foo * bar" should be "foo *bar"
- WARNING: please, no space before tabs

Signed-off-by: Laurent Navet <laurent.navet@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-05-30 15:32:41 +02:00
Robert P. J. Day
221f7edb73 PCMCIA: Remove commented references to dead class_device_create_file() 
Since this routine doesn't even exist anymore, there's no point
leaving in commented code using it.

Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-05-30 15:29:42 +02:00
Julia Lawall
801421eb73 drivers/pcmcia/electra_cf.c: add missing iounmap and kfree 
cf and cf->mem_base have been allocated at the point of this failure, so
they should be freed before leaving the function.

[linux@dominikbrodowski.net: limit call to device_init_wakeup() to the
same error paths as before]
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-05-30 15:14:39 +02:00
Jim Cromie
e632cd9472 pcmcia: replace open-coded ARRAY_SIZE with macro 
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
 2015-05-30 15:10:47 +02:00
Dmitry Eremin-Solenikov
d3046ba809 pcmcia: fix a boot time warning in pcmcia cs code 
During bootup pcmcia (pccardd) code enforces the following warning
backtrace:

do not call blocking ops when !TASK_RUNNING; state=1 set at [<c0319e74>] pccardd+0xb8/0x3fc
Modules linked in:
CPU: 0 PID: 14 Comm: pccardd Not tainted 4.0.0-rc6+ #11
Hardware name: Sharp-Collie
[<c0105cd8>] (unwind_backtrace) from [<c0103ef8>] (show_stack+0x10/0x14)
[<c0103ef8>] (show_stack) from [<c010e9b8>] (warn_slowpath_common+0x74/0xac)
[<c010e9b8>] (warn_slowpath_common) from [<c010ea20>] (warn_slowpath_fmt+0x30/0x40)
[<c010ea20>] (warn_slowpath_fmt) from [<c012b1b4>] (__might_sleep+0x84/0xa0)
[<c012b1b4>] (__might_sleep) from [<c040fbb0>] (mutex_lock_nested+0x24/0x388)
[<c040fbb0>] (mutex_lock_nested) from [<c0319eb4>] (pccardd+0xf8/0x3fc)
[<c0319eb4>] (pccardd) from [<c0127370>] (kthread+0xdc/0xfc)
[<c0127370>] (kthread) from [<c01013a8>] (ret_from_fork+0x14/0x2c)
---[ end trace fd94911637eed4ba ]---

This happens due to kthread trying to lock mutex in a TASK_INTERRUPTIBLE
state. Limit TASK_INTERRUPTIBLE task state to the schedule() call only,
so that the rest of the code runs in TASK_RUNNING state.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2015-05-24 12:24:35 -07:00
Alexandre Belloni
eaa9a21dd1 pcmcia: at91_cf: Use syscon to configure the MC/smc 
Use syscon/regmap to configure the smc part of the memory controller. This
allows to avoid using mach/at91rm9200_mc.h and mach/at91_ramc.h and to compile
the driver in a multiplatform configuration.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
 2015-05-20 16:37:38 +02:00
Linus Torvalds
d0440c59f5 ARM: SoC cleanups for v4.1 
We've got a fairly large cleanup branch this time. The bulk of this is removal
 of non-DT platforms of several flavors:
 
 - Atmel at91 platforms go full-DT, with removal of remaining board-file based
   support
 - OMAP removes legacy board files for three more platforms
 - Removal of non-DT mach-msm, newer Qualcomm platforms now live in mach-qcom
 - Freescale i.MX25 also removes non-DT platform support
 
 Most of the rest of the changes here are fallout from the above, i.e. for
 example removal of drivers that now lack platforms, etc.
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Merge tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Olof Johansson:
 "We've got a fairly large cleanup branch this time.  The bulk of this
  is removal of non-DT platforms of several flavors:

   - Atmel at91 platforms go full-DT, with removal of remaining
     board-file based support

   - OMAP removes legacy board files for three more platforms

   - removal of non-DT mach-msm, newer Qualcomm platforms now live in
     mach-qcom

   - Freescale i.MX25 also removes non-DT platform support"

Most of the rest of the changes here are fallout from the above, i.e. for
example removal of drivers that now lack platforms, etc.

* tag 'armsoc-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (58 commits)
  mmc: Remove msm_sdcc driver
  gpio: Remove gpio-msm-v1 driver
  ARM: Remove mach-msm and associated ARM architecture code
  ARM: shmobile: cpuidle: Remove the pointless default driver
  ARM: davinci: dm646x: Add interrupt resource for McASPs
  ARM: davinci: irqs: Correct McASP1 TX interrupt definition for DM646x
  ARM: davinci: dm646x: Clean up the McASP DMA resources
  ARM: davinci: devices-da8xx: Add support for McASP2 on da830
  ARM: davinci: devices-da8xx: Clean up and correct the McASP device creation
  ARM: davinci: devices-da8xx: Add interrupt resource to McASP structs
  ARM: davinci: devices-da8xx: Add resource name for the McASP DMA request
  ARM: OMAP2+: Remove legacy support for omap3 TouchBook
  ARM: OMAP3: Remove legacy support for devkit8000
  ARM: OMAP3: Remove legacy support for EMA-Tech Stalker board
  ARM: shmobile: Consolidate the pm code for R-Car Gen2
  ARM: shmobile: r8a7791: Correct SYSCIER value
  ARM: shmobile: r8a7790: Correct SYSCIER value
  ARM: at91: remove old setup
  ARM: at91: sama5d4: remove useless map_io
  ARM: at91: sama5 use SoC detection infrastructure
  ...
 2015-04-22 09:04:39 -07:00
Greg Kroah-Hartman
ff85f707ac Merge 4.0-rc5 into char-misc-next 
We want those fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2015-03-25 10:51:53 +01:00
Vaishali Thakkar
03b225b16d pcmcia: Use setup_timer and mod_timer 
This patch introduces the use of functions setup_timer
and mod_timer.

This is done using Coccinelle and semantic patch used
for this as follows:

// <smpl>
@@
expression x,y,z,a,b;
@@

-init_timer (&x);
+setup_timer (&x, y, z);
+mod_timer (&a, b);
-x.function = y;
-x.data = z;
-x.expires = b;
-add_timer(&a);

// </smpl>

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2015-03-16 21:31:43 +01:00
Vaishali Thakkar
dae6cdabe4 pcmcia: Use setup_timer 
This patch introduces the use of function setup_timer.

This is done using Coccinelle and semantic patch used is
as follows:

@@
expression x,y,z;
@@

- init_timer (&x);
+ setup_timer (&x, y, z);
- x.function = y;
- x.data = z;

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2015-03-16 21:31:43 +01:00
Arnd Bergmann
1be27c62d6 ARM: at91: remove NEED_MACH_IO_H 
The mach/io.h header on at91 is used to support a nonstandard I/O space
window for the cf card driver. This changes the driver to use pci_ioremap_io
in order to have the standard location, and then removes the custom
mach/io.h.

[alexandre.belloni@free-electrons.com: Added PCI dependency]
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
 2015-03-13 15:11:04 +01:00
Greg Kroah-Hartman
3d7a8278fd Revert "pcmcia: add a new resource manager for non ISA systems" 
This reverts commit 02b03846bb.

Alan writes:
it seems there is a regression in there for some configuration of I/O
based devices. I'll take a look at it over the next couple of kernel
releases and see what is up then resubmit it with fixes.

Reported-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2015-03-11 14:21:23 +01:00
Greg Kroah-Hartman
05c0006776 Revert "pcmcia: fix incorrect bracketing on a test" 
This reverts commit c3762b248f.

The file this fixes is about to be reverted.

Reported-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 2015-03-11 14:20:51 +01:00