Commit Graph

871280 Commits

Author SHA1 Message Date
Olof Johansson
fcdc437224 One new patch to the arm64 defconfig to enable the new crypto engine
driver.
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Merge tag 'sunxi-config64-for-5.5-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/defconfig

One new patch to the arm64 defconfig to enable the new crypto engine
driver.

* tag 'sunxi-config64-for-5.5-1' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  arm64: defconfig: add new Allwinner crypto options

Link: https://lore.kernel.org/r/539241d6-9b2e-4d5b-bd63-f912cf6ebf96.lettre@localhost
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-03 17:08:26 -08:00
Olof Johansson
5003119e43 Two new drivers enabled in sunxi_defconfig: one for the PHY found on
multiple boards, one for the new crypto driver.
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Merge tag 'sunxi-config-for-5.5-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/defconfig

Two new drivers enabled in sunxi_defconfig: one for the PHY found on
multiple boards, one for the new crypto driver.

* tag 'sunxi-config-for-5.5-2' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  ARM: configs: sunxi: Enable MICREL_PHY
  ARM: configs: sunxi: add new Allwinner crypto options

Link: https://lore.kernel.org/r/27125172-7ce8-427e-83f9-8e9bd69d50a4.lettre@localhost
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-03 17:08:10 -08:00
Olof Johansson
4075e0db48 Renesas ARM64 defconfig updates for v5.5 (take two)
- Enable support for the new R-Car M3-W+ (r8a77961) SoC.
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Merge tag 'renesas-arm64-defconfig-for-v5.5-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/defconfig

Renesas ARM64 defconfig updates for v5.5 (take two)

  - Enable support for the new R-Car M3-W+ (r8a77961) SoC.

* tag 'renesas-arm64-defconfig-for-v5.5-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  arm64: defconfig: Enable R8A77961 SoC

Link: https://lore.kernel.org/r/20191101155842.31467-4-geert+renesas@glider.be
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-03 17:04:38 -08:00
Olof Johansson
9a67a6ec9f Renesas ARM defconfig updates for v5.5
- Refresh shmobile_defconfig for v5.4-rc1.
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Merge tag 'renesas-arm-defconfig-for-v5.5-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/defconfig

Renesas ARM defconfig updates for v5.5

  - Refresh shmobile_defconfig for v5.4-rc1.

* tag 'renesas-arm-defconfig-for-v5.5-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  ARM: shmobile: defconfig: Refresh for v5.4-rc1

Link: https://lore.kernel.org/r/20191101155842.31467-2-geert+renesas@glider.be
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-03 17:03:55 -08:00
Olof Johansson
ae314d78b5 ARM64: hisilicon: defconfig updates for 5.5
- enable ARM SMMUv3 PMU and hisi ZIP controller as module for
   Kunpeng920 SoC
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Merge tag 'hisi-arm64-defconfig-for-5.5' of git://github.com/hisilicon/linux-hisi into arm/defconfig

ARM64: hisilicon: defconfig updates for 5.5

- enable ARM SMMUv3 PMU and hisi ZIP controller as module for
  Kunpeng920 SoC

* tag 'hisi-arm64-defconfig-for-5.5' of git://github.com/hisilicon/linux-hisi:
  arm64: defconfig: Enable SMMU v3 PMCG
  arm64: defconfig: Enable HiSilicon ZIP controller

Link: https://lore.kernel.org/r/5DB95B1E.8060607@hisilicon.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-03 16:56:44 -08:00
Olof Johansson
cbf6673d67 arm64 defconfig for v5.5
- Add SPI_CADENCE_QUADSPI to support the Cadence QSPI driver
 - Add INTEL_STRATIX10_RSU as a module to support the Remote Service
   Update driver on Stratix10 and Agilex platforms
 - Add GPIO_ALTERA as a module to support the Altera GPIO driver
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Merge tag 'arm64_defconfig_for_v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux into arm/defconfig

arm64 defconfig for v5.5
- Add SPI_CADENCE_QUADSPI to support the Cadence QSPI driver
- Add INTEL_STRATIX10_RSU as a module to support the Remote Service
  Update driver on Stratix10 and Agilex platforms
- Add GPIO_ALTERA as a module to support the Altera GPIO driver

* tag 'arm64_defconfig_for_v5.5' of git://git.kernel.org/pub/scm/linux/kernel/git/dinguyen/linux:
  arm64: defconfig: enable Altera GPIO controller
  arm64: defconfig: enable rsu driver
  arm64: defconfig: enable the Cadence QSPI controller

Link: https://lore.kernel.org/r/20191029143737.24850-2-dinguyen@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-11-02 13:35:39 -07:00
Geert Uytterhoeven
51e0f6a191 ARM: shmobile: defconfig: Refresh for v5.4-rc1
Update the defconfig for Renesas ARM boards:
  - Drop CONFIG_ARM_ERRATA_754322=y (auto-enabled since commit
    2eced4607a ("soc: renesas: Enable ARM_ERRATA_754322 for
    affected Cortex-A9")),
  - Drop CONFIG_MTD_M25P80=y (removed in commit b35b9a1036 ("mtd:
    spi-nor: Move m25p80 code in spi-nor.c")),
  - Drop CONFIG_LCD_CLASS_DEVICE=n (no longer auto-enabled since commit
    bcd69da98e ("video: backlight: Drop default m for
    {LCD,BACKLIGHT_CLASS_DEVICE}")).

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20191025135325.32242-1-geert+renesas@glider.be
2019-11-01 14:17:01 +01:00
Geert Uytterhoeven
b13d0e6162 arm64: defconfig: Enable R8A77961 SoC
Enable the Renesas R-Car M3-W+ (R8A77961) SoC in the ARM64 defconfig.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Tested-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/20191023123342.13100-11-geert+renesas@glider.be
2019-11-01 14:06:01 +01:00
Priit Laes
9567832aba
ARM: configs: sunxi: Enable MICREL_PHY
Include support for Micrel KSZ9031 PHY driver in sunxi_defconfig,
which fixes issues of link not coming up at boot time with
certain link partners.

Micrel KSZ9031 PHY chip is used on Olimex A20-OLinuXino-LIME2
boards.

The errata fix itself has been implemented in commit
"3aed3e2a143c96: net: phy: micrel: add Asym Pause workaround"

Signed-off-by: Priit Laes <plaes@plaes.org>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2019-11-01 10:03:39 +01:00
Corentin Labbe
2fabf6dd77
arm64: defconfig: add new Allwinner crypto options
This patch adds the new allwinner crypto configs to ARM64 defconfig

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2019-11-01 10:02:27 +01:00
Corentin Labbe
46b257b185
ARM: configs: sunxi: add new Allwinner crypto options
This patch adds the new Allwinner crypto configs to sunxi_defconfig

Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2019-11-01 09:59:31 +01:00
Zhou Wang
006ece996d arm64: defconfig: Enable SMMU v3 PMCG
HiSilicon Kunpeng920 SoC's SMMU has Performance Monitor Counter Groups(PMCG).
This patch enables related driver in defconfig.

Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-10-26 15:29:03 +08:00
Zhou Wang
af24cb2068 arm64: defconfig: Enable HiSilicon ZIP controller
Enable CONFIG_CRYPTO_DEV_HISI_ZIP for HiSilicon ZIP controller in Kunpeng920
SoC.

Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
2019-10-26 15:28:30 +08:00
Dinh Nguyen
1f2719c5c4 arm64: defconfig: enable Altera GPIO controller
Enable GPIO_ALTERA driver.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2019-10-25 10:20:06 -05:00
Olivier Moysan
b05a50bb37 ARM: multi_v7_defconfig: Enable audio support for stm32mp157
This commits enable (as module):
- STM32 SAI and I2S configs used on stm32mp157.
- Cirrus CS42L51 audio codec for stm32mp157a-dk1 board.
- Audio graph card support for stm32mp157a-dk1 board.

Link: https://lore.kernel.org/r/20191025125632.11057-1-alexandre.torgue@st.com
Signed-off-by: Olivier Moysan <olivier.moysan@st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-10-25 08:18:37 -07:00
Olof Johansson
2cdc74310e Defconfig changes for omap2plus_defconfig for v5.5
A series of changes from Adam Ford to update for removed and moved items,
 and then enable crypto devices and MT9P031 video as loadable modules.
 
 Looks like I missed unifying the subject line for one commit, but I did
 not want to mess with the commit after pushing it out.
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Merge tag 'omap-for-v5.5/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/defconfig

Defconfig changes for omap2plus_defconfig for v5.5

A series of changes from Adam Ford to update for removed and moved items,
and then enable crypto devices and MT9P031 video as loadable modules.

Looks like I missed unifying the subject line for one commit, but I did
not want to mess with the commit after pushing it out.

* tag 'omap-for-v5.5/defconfig-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  configs: omap2plus: Enable VIDEO_MT9P031 module
  ARM: omap2plus_defconfig: Enable HW Crypto engine modules
  ARM: omap2plus_defconfig: Update for moved item
  ARM: omap2plus_defconfig: Update for removed items

Link: https://lore.kernel.org/r/pull-1571853258-16998@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-10-23 13:22:10 -07:00
Olof Johansson
b446bbfd3a Fixes for omaps for v5.4-rc cycle
More fixes for omap variants:
 
 - Update more panel options in omap2plus_defconfig that got changed
   as we moved to use generic LCD panels
 
 - Remove unused twl_keypad for logicpd-torpedo-som to avoid boot
   time warnings. This is only a cosmetic fix, but at least dmesg output
   is now getting more readable after all the fixes to remove pointless
   warnings
 
 - Fix gpu_cm node name as we still have a non-standard node name
   dependency for clocks. This should eventually get fixed by use
   of domain specific compatible property
 
 - Fix use of i2c-mux-idle-disconnect for m3874-iceboard
 
 - Use level interrupt for omap4 & 5 wlcore to avoid lost edge
   interrupts
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Merge tag 'omap-for-v5.4/fixes-rc3-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes

Fixes for omaps for v5.4-rc cycle

More fixes for omap variants:

- Update more panel options in omap2plus_defconfig that got changed
  as we moved to use generic LCD panels

- Remove unused twl_keypad for logicpd-torpedo-som to avoid boot
  time warnings. This is only a cosmetic fix, but at least dmesg output
  is now getting more readable after all the fixes to remove pointless
  warnings

- Fix gpu_cm node name as we still have a non-standard node name
  dependency for clocks. This should eventually get fixed by use
  of domain specific compatible property

- Fix use of i2c-mux-idle-disconnect for m3874-iceboard

- Use level interrupt for omap4 & 5 wlcore to avoid lost edge
  interrupts

* tag 'omap-for-v5.4/fixes-rc3-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: dts: Use level interrupt for omap4 & 5 wlcore
  ARM: dts: am3874-iceboard: Fix 'i2c-mux-idle-disconnect' usage
  ARM: dts: omap5: fix gpu_cm clock provider name
  ARM: dts: logicpd-torpedo-som: Remove twl_keypad
  ARM: omap2plus_defconfig: Fix selected panels after generic panel changes

Link: https://lore.kernel.org/r/pull-1571242890-118432@atomide.com
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-10-23 13:21:16 -07:00
Richard Gong
2996547c02 arm64: defconfig: enable rsu driver
Enable Intel Stratix10 Remote System Update (RSU) driver

The Intel Remote System Update (RSU) driver provides a way for customers
to update the boot configuration of a Intel Stratix 10 SoC device with
significantly reduced risk of corrupting the bitstream storage and
bricking the system.

Signed-off-by: Richard Gong <richard.gong@intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2019-10-23 09:26:13 -05:00
Adam Ford
ec2b312672 configs: omap2plus: Enable VIDEO_MT9P031 module
The Logic PD Torpedo Development Kit supports a Leopard Imaging
camera based on the Aptina MT9P031 sensor.

This patch enables this to be built as a module.

Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-22 09:11:03 -07:00
Lubomir Rintel
94aade9458 ARM: multi_v7_defconfig: enable MMP platforms
Marvell MMP/PXA/MMP2 platforms seem to be excluded from the defconfig
for no good reasons. Enable the DT-based boards along with modules for
their peripherals.

Link: https://lore.kernel.org/r/20191017145705.2867950-1-lkundrak@v3.sk
Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-10-21 15:32:26 -07:00
Olof Johansson
683554e563 Samsung defconfig changes for v5.5
1. Enable Dynamic Memory Controller driver for Exynos5422,
 2. Enable Arndale (Exynos5250) audio driver,
 3. Sync multi_v7 defconfig with exynos by enabling useful and necessary
    drivers (NFC, watchdog, S2MPA01 regulator, IOMMU, Maxim extcon
    drivers, PHY for SATA and devfreq).
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Merge tag 'samsung-defconfig-5.5' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into arm/defconfig

Samsung defconfig changes for v5.5

1. Enable Dynamic Memory Controller driver for Exynos5422,
2. Enable Arndale (Exynos5250) audio driver,
3. Sync multi_v7 defconfig with exynos by enabling useful and necessary
   drivers (NFC, watchdog, S2MPA01 regulator, IOMMU, Maxim extcon
   drivers, PHY for SATA and devfreq).

* tag 'samsung-defconfig-5.5' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
  ARM: multi_v7_defconfig: Enable Exynos bus and memory frequency scaling (devfreq)
  ARM: multi_v7_defconfig: Enable options for boards with Exynos SoC
  ARM: exynos_defconfig: Enable Arndale audio driver
  ARM: exynos_defconfig: Enable DMC driver

Link: https://lore.kernel.org/r/20191021180453.29455-2-krzk@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-10-21 14:49:25 -07:00
Olof Johansson
74a9144c3a Renesas ARM64 defconfig updates for v5.5
- Enable support for the new RZ/G2N (r8a774b1) SoC.
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Merge tag 'renesas-arm64-defconfig-for-v5.5-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/defconfig

Renesas ARM64 defconfig updates for v5.5

  - Enable support for the new RZ/G2N (r8a774b1) SoC.

* tag 'renesas-arm64-defconfig-for-v5.5-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  arm64: defconfig: Enable R8A774B1 SoC

Link: https://lore.kernel.org/r/20191018101136.26350-3-geert+renesas@glider.be
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-10-21 14:43:34 -07:00
Manivannan Sadhasivam
de09e521cd arm64: configs: Enable Actions Semi platform in defconfig
Since there are enough consumers (drivers) for Actions Semi platform in
mainline, let's enable it in ARM64 defconfig. As of now, this platform
can boot a distro from eMMC/uSD.

Link: https://lore.kernel.org/r/20191015152204.5610-1-manivannan.sadhasivam@linaro.org
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
2019-10-21 14:42:55 -07:00
Dinh Nguyen
c2877b59c1 arm64: defconfig: enable the Cadence QSPI controller
Enable the Cadence QSPI controller driver that is on the Stratix10 and
Agilex platforms.

Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
2019-10-17 14:08:06 -05:00
Tony Lindgren
17a9e5bbbf Merge tag 'wlcore-fix' into fixes 2019-10-11 09:15:35 -07:00
Tony Lindgren
087a2b7ec9 ARM: dts: Use level interrupt for omap4 & 5 wlcore
Commit 572cf7d7b0 ("ARM: dts: Improve omap l4per idling with wlcore edge
sensitive interrupt") changed wlcore interrupts to use edge interrupt based
on what's specified in the wl1835mod.pdf data sheet.

However, there are still cases where we can have lost interrupts as
described in omap_gpio_unidle(). And using a level interrupt instead of edge
interrupt helps as we avoid the check for untriggered GPIO interrupts in
omap_gpio_unidle().

And with commit e6818d29ea ("gpio: gpio-omap: configure edge detection
for level IRQs for idle wakeup") GPIOs idle just fine with level interrupts.

Let's change omap4 and 5 wlcore users back to using level interrupt
instead of edge interrupt. Let's not change the others as I've only seen
this on omap4 and 5, probably because the other SoCs don't have l4per idle
independent of the CPUs.

Fixes: 572cf7d7b0 ("ARM: dts: Improve omap l4per idling with wlcore edge sensitive interrupt")
Depends-on: e6818d29ea ("gpio: gpio-omap: configure edge detection for level IRQs for idle wakeup")
Cc: Anders Roxell <anders.roxell@linaro.org>
Cc: Eyal Reizer <eyalr@ti.com>
Cc: Guy Mishol <guym@ti.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-09 15:11:27 -07:00
Krzysztof Kozlowski
54e48a69c1 ARM: multi_v7_defconfig: Enable Exynos bus and memory frequency scaling (devfreq)
Enable devfreq events along with drivers for scaling frequency and
voltages of Exynos buses and Dynamic Memory Controller (DMC).  This
usually brings energy saving benefits.

So far devfreq was disabled because it was causing hangs during system
reboot (voltage not matching reset frequency). This was already fixed.

Occasionally, devfreq might negatively impact performance of certain SoC
blocks, e.g. when a bus is scaled down but some block (like Mixer with
two Full HD windows) wants to perform high-throughput DMA operations.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-09 18:34:53 +02:00
Krzysztof Kozlowski
00265bee10 ARM: multi_v7_defconfig: Enable options for boards with Exynos SoC
Sync with exynos_defconfig and enable following options for Samsung
Exynos SoC based boards:
1. NFC_S3FWRN5_I2C (with NFC stack): Samsung S3FWRN5 NCI NFC Controller,
   used for example on Exynos5433 (if booted in 32-bit mode),
2. S3C2410_WATCHDOG: watchdog driver used on S3C, S5P and Exynos SoCs,
3. REGULATOR_S2MPA01: Samsung S2MPA01 regulators driver present on
   Exynos5260 RexNos REX-RED board,
4. SND_SOC_ARNDALE: sound support on Arndale boards,
5. EXYNOS_IOMMU: IOMMU driver used on all Exynos SocS,,
6. EXTCON_MAX14577, EXTCON_MAX77693 and EXTCON_MAX8997: extcon drivers
   for handling micro USB on mobile Samsung boards (Trats, Trats2,
   Rinato),
7. PHY_EXYNOS5250_SATA: SATA phy for Exynos5250 present on Arndale and
   SMDK5250 boards.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
2019-10-09 18:33:42 +02:00
Andrey Smirnov
647c8977e1 ARM: dts: am3874-iceboard: Fix 'i2c-mux-idle-disconnect' usage
According to
Documentation/devicetree/bindings/i2c/i2c-mux-pca954x.txt,
i2c-mux-idle-disconnect is a property of a parent node since it
pertains to the mux/switch as a whole, so move it there and drop all
of the concurrences in child nodes.

Fixes: d031773169 ("ARM: dts: Adds device tree file for McGill's IceBoard, based on TI AM3874")
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Cc: Benoît Cousson <bcousson@baylibre.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Graeme Smecher <gsmecher@threespeedlogic.com>
Cc: linux-omap@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Graeme Smecher <gsmecher@threespeedlogic.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-08 07:16:14 -07:00
Tero Kristo
734a9b21bb ARM: dts: omap5: fix gpu_cm clock provider name
The clkctrl code searches for the parent clockdomain based on the name
of the CM provider node. The introduction of SGX node for omap5 made
the node name for the gpu_cm to be clock-controller. There is no
clockdomain named like this, so the lookup fails. Fix by changing
the node name properly.

Fixes: 394534cb07 ("ARM: dts: Configure sgx for omap5")
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2019-10-08 06:44:45 -07:00
Linus Torvalds
da0c9ea146 Linux 5.4-rc2 2019-10-06 14:27:30 -07:00
Linus Torvalds
b212921b13 elf: don't use MAP_FIXED_NOREPLACE for elf executable mappings
In commit 4ed2863951 ("fs, elf: drop MAP_FIXED usage from elf_map") we
changed elf to use MAP_FIXED_NOREPLACE instead of MAP_FIXED for the
executable mappings.

Then, people reported that it broke some binaries that had overlapping
segments from the same file, and commit ad55eac74f ("elf: enforce
MAP_FIXED on overlaying elf segments") re-instated MAP_FIXED for some
overlaying elf segment cases.  But only some - despite the summary line
of that commit, it only did it when it also does a temporary brk vma for
one obvious overlapping case.

Now Russell King reports another overlapping case with old 32-bit x86
binaries, which doesn't trigger that limited case.  End result: we had
better just drop MAP_FIXED_NOREPLACE entirely, and go back to MAP_FIXED.

Yes, it's a sign of old binaries generated with old tool-chains, but we
do pride ourselves on not breaking existing setups.

This still leaves MAP_FIXED_NOREPLACE in place for the load_elf_interp()
and the old load_elf_library() use-cases, because nobody has reported
breakage for those. Yet.

Note that in all the cases seen so far, the overlapping elf sections
seem to be just re-mapping of the same executable with different section
attributes.  We could possibly introduce a new MAP_FIXED_NOFILECHANGE
flag or similar, which acts like NOREPLACE, but allows just remapping
the same executable file using different protection flags.

It's not clear that would make a huge difference to anything, but if
people really hate that "elf remaps over previous maps" behavior, maybe
at least a more limited form of remapping would alleviate some concerns.

Alternatively, we should take a look at our elf_map() logic to see if we
end up not mapping things properly the first time.

In the meantime, this is the minimal "don't do that then" patch while
people hopefully think about it more.

Reported-by: Russell King <linux@armlinux.org.uk>
Fixes: 4ed2863951 ("fs, elf: drop MAP_FIXED usage from elf_map")
Fixes: ad55eac74f ("elf: enforce  MAP_FIXED on overlaying elf segments")
Cc: Michal Hocko <mhocko@suse.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-10-06 13:53:27 -07:00
Linus Torvalds
7cdb85df60 dma-mapping regression fix for 5.4-rc2
- revert an incorret hunk from a patch that caused problems
    on various arm boards (Andrey Smirnov)
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Merge tag 'dma-mapping-5.4-1' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping regression fix from Christoph Hellwig:
 "Revert an incorret hunk from a patch that caused problems on various
  arm boards (Andrey Smirnov)"

* tag 'dma-mapping-5.4-1' of git://git.infradead.org/users/hch/dma-mapping:
  dma-mapping: fix false positive warnings in dma_common_free_remap()
2019-10-06 11:10:15 -07:00
Linus Torvalds
43b815c6a8 ARM: SoC fixes
A few fixes this time around:
 
  - Fixup of some clock specifications for DRA7 (device-tree fix)
  - Removal of some dead/legacy CPU OPP/PM code for OMAP that throws
    warnings at boot
  - A few more minor fixups for OMAPs, most around display
  - Enable STM32 QSPI as =y since their rootfs sometimes comes from
    there
  - Switch CONFIG_REMOTEPROC to =y since it went from tristate to bool
  - Fix of thermal zone definition for ux500 (5.4 regression)
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "A few fixes this time around:

   - Fixup of some clock specifications for DRA7 (device-tree fix)

   - Removal of some dead/legacy CPU OPP/PM code for OMAP that throws
     warnings at boot

   - A few more minor fixups for OMAPs, most around display

   - Enable STM32 QSPI as =y since their rootfs sometimes comes from
     there

   - Switch CONFIG_REMOTEPROC to =y since it went from tristate to bool

   - Fix of thermal zone definition for ux500 (5.4 regression)"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: multi_v7_defconfig: Fix SPI_STM32_QSPI support
  ARM: dts: ux500: Fix up the CPU thermal zone
  arm64/ARM: configs: Change CONFIG_REMOTEPROC from m to y
  ARM: dts: am4372: Set memory bandwidth limit for DISPC
  ARM: OMAP2+: Fix warnings with broken omap2_set_init_voltage()
  ARM: OMAP2+: Add missing LCDC midlemode for am335x
  ARM: OMAP2+: Fix missing reset done flag for am3 and am43
  ARM: dts: Fix gpio0 flags for am335x-icev2
  ARM: omap2plus_defconfig: Enable more droid4 devices as loadable modules
  ARM: omap2plus_defconfig: Enable DRM_TI_TFP410
  DTS: ARM: gta04: introduce legacy spi-cs-high to make display work again
  ARM: dts: Fix wrong clocks for dra7 mcasp
  clk: ti: dra7: Fix mcasp8 clock bits
2019-10-05 17:18:43 -07:00
Linus Torvalds
2d00aee21a Kbuild fixes for v5.4
- remove unneeded ar-option and KBUILD_ARFLAGS
 
  - remove long-deprecated SUBDIRS
 
  - fix modpost to suppress false-positive warnings for UML builds
 
  - fix namespace.pl to handle relative paths to ${objtree}, ${srctree}
 
  - make setlocalversion work for /bin/sh
 
  - make header archive reproducible
 
  - fix some Makefiles and documents
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Merge tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - remove unneeded ar-option and KBUILD_ARFLAGS

 - remove long-deprecated SUBDIRS

 - fix modpost to suppress false-positive warnings for UML builds

 - fix namespace.pl to handle relative paths to ${objtree}, ${srctree}

 - make setlocalversion work for /bin/sh

 - make header archive reproducible

 - fix some Makefiles and documents

* tag 'kbuild-fixes-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  kheaders: make headers archive reproducible
  kbuild: update compile-test header list for v5.4-rc2
  kbuild: two minor updates for Documentation/kbuild/modules.rst
  scripts/setlocalversion: clear local variable to make it work for sh
  namespace: fix namespace.pl script to support relative paths
  video/logo: do not generate unneeded logo C files
  video/logo: remove unneeded *.o pattern from clean-files
  integrity: remove pointless subdir-$(CONFIG_...)
  integrity: remove unneeded, broken attempt to add -fshort-wchar
  modpost: fix static EXPORT_SYMBOL warnings for UML build
  kbuild: correct formatting of header in kbuild module docs
  kbuild: remove SUBDIRS support
  kbuild: remove ar-option and KBUILD_ARFLAGS
2019-10-05 12:56:59 -07:00
Linus Torvalds
126195c972 SCSI fixes on 20191004
Twelve patches mostly small but obvious fixes or cosmetic but small
 updates.
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Twelve patches mostly small but obvious fixes or cosmetic but small
  updates"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: qla2xxx: Fix Nport ID display value
  scsi: qla2xxx: Fix N2N link up fail
  scsi: qla2xxx: Fix N2N link reset
  scsi: qla2xxx: Optimize NPIV tear down process
  scsi: qla2xxx: Fix stale mem access on driver unload
  scsi: qla2xxx: Fix unbound sleep in fcport delete path.
  scsi: qla2xxx: Silence fwdump template message
  scsi: hisi_sas: Make three functions static
  scsi: megaraid: disable device when probe failed after enabled device
  scsi: storvsc: setup 1:1 mapping between hardware queue and CPU queue
  scsi: qedf: Remove always false 'tmp_prio < 0' statement
  scsi: ufs: skip shutdown if hba is not powered
  scsi: bnx2fc: Handle scope bits when array returns BUSY or TSF
2019-10-05 12:53:27 -07:00
Linus Torvalds
4f11918ab9 Merge branch 'readdir' (readdir speedup and sanity checking)
This makes getdents() and getdents64() do sanity checking on the
pathname that it gives to user space.  And to mitigate the performance
impact of that, it first cleans up the way it does the user copying, so
that the code avoids doing the SMAP/PAN updates between each part of the
dirent structure write.

I really wanted to do this during the merge window, but didn't have
time.  The conversion of filldir to unsafe_put_user() is something I've
had around for years now in a private branch, but the extra pathname
checking finally made me clean it up to the point where it is mergable.

It's worth noting that the filename validity checking really should be a
bit smarter: it would be much better to delay the error reporting until
the end of the readdir, so that non-corrupted filenames are still
returned.  But that involves bigger changes, so let's see if anybody
actually hits the corrupt directory entry case before worrying about it
further.

* branch 'readdir':
  Make filldir[64]() verify the directory entry filename is valid
  Convert filldir[64]() from __put_user() to unsafe_put_user()
2019-10-05 12:03:27 -07:00
Linus Torvalds
8a23eb804c Make filldir[64]() verify the directory entry filename is valid
This has been discussed several times, and now filesystem people are
talking about doing it individually at the filesystem layer, so head
that off at the pass and just do it in getdents{64}().

This is partially based on a patch by Jann Horn, but checks for NUL
bytes as well, and somewhat simplified.

There's also commentary about how it might be better if invalid names
due to filesystem corruption don't cause an immediate failure, but only
an error at the end of the readdir(), so that people can still see the
filenames that are ok.

There's also been discussion about just how much POSIX strictly speaking
requires this since it's about filesystem corruption.  It's really more
"protect user space from bad behavior" as pointed out by Jann.  But
since Eric Biederman looked up the POSIX wording, here it is for context:

 "From readdir:

   The readdir() function shall return a pointer to a structure
   representing the directory entry at the current position in the
   directory stream specified by the argument dirp, and position the
   directory stream at the next entry. It shall return a null pointer
   upon reaching the end of the directory stream. The structure dirent
   defined in the <dirent.h> header describes a directory entry.

  From definitions:

   3.129 Directory Entry (or Link)

   An object that associates a filename with a file. Several directory
   entries can associate names with the same file.

  ...

   3.169 Filename

   A name consisting of 1 to {NAME_MAX} bytes used to name a file. The
   characters composing the name may be selected from the set of all
   character values excluding the slash character and the null byte. The
   filenames dot and dot-dot have special meaning. A filename is
   sometimes referred to as a 'pathname component'."

Note that I didn't bother adding the checks to any legacy interfaces
that nobody uses.

Also note that if this ends up being noticeable as a performance
regression, we can fix that to do a much more optimized model that
checks for both NUL and '/' at the same time one word at a time.

We haven't really tended to optimize 'memchr()', and it only checks for
one pattern at a time anyway, and we really _should_ check for NUL too
(but see the comment about "soft errors" in the code about why it
currently only checks for '/')

See the CONFIG_DCACHE_WORD_ACCESS case of hash_name() for how the name
lookup code looks for pathname terminating characters in parallel.

Link: https://lore.kernel.org/lkml/20190118161440.220134-2-jannh@google.com/
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jann Horn <jannh@google.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-10-05 12:00:36 -07:00
Linus Torvalds
9f79b78ef7 Convert filldir[64]() from __put_user() to unsafe_put_user()
We really should avoid the "__{get,put}_user()" functions entirely,
because they can easily be mis-used and the original intent of being
used for simple direct user accesses no longer holds in a post-SMAP/PAN
world.

Manually optimizing away the user access range check makes no sense any
more, when the range check is generally much cheaper than the "enable
user accesses" code that the __{get,put}_user() functions still need.

So instead of __put_user(), use the unsafe_put_user() interface with
user_access_{begin,end}() that really does generate better code these
days, and which is generally a nicer interface.  Under some loads, the
multiple user writes that filldir() does are actually quite noticeable.

This also makes the dirent name copy use unsafe_put_user() with a couple
of macros.  We do not want to make function calls with SMAP/PAN
disabled, and the code this generates is quite good when the
architecture uses "asm goto" for unsafe_put_user() like x86 does.

Note that this doesn't bother with the legacy cases.  Nobody should use
them anyway, so performance doesn't really matter there.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-10-05 12:00:36 -07:00
Linus Torvalds
9819a30c11 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller:

 1) Fix ieeeu02154 atusb driver use-after-free, from Johan Hovold.

 2) Need to validate TCA_CBQ_WRROPT netlink attributes, from Eric
    Dumazet.

 3) txq null deref in mac80211, from Miaoqing Pan.

 4) ionic driver needs to select NET_DEVLINK, from Arnd Bergmann.

 5) Need to disable bh during nft_connlimit GC, from Pablo Neira Ayuso.

 6) Avoid division by zero in taprio scheduler, from Vladimir Oltean.

 7) Various xgmac fixes in stmmac driver from Jose Abreu.

 8) Avoid 64-bit division in mlx5 leading to link errors on 32-bit from
    Michal Kubecek.

 9) Fix bad VLAN check in rtl8366 DSA driver, from Linus Walleij.

10) Fix sleep while atomic in sja1105, from Vladimir Oltean.

11) Suspend/resume deadlock in stmmac, from Thierry Reding.

12) Various UDP GSO fixes from Josh Hunt.

13) Fix slab out of bounds access in tcp_zerocopy_receive(), from Eric
    Dumazet.

14) Fix OOPS in __ipv6_ifa_notify(), from David Ahern.

15) Memory leak in NFC's llcp_sock_bind, from Eric Dumazet.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (72 commits)
  selftests/net: add nettest to .gitignore
  net: qlogic: Fix memory leak in ql_alloc_large_buffers
  nfc: fix memory leak in llcp_sock_bind()
  sch_dsmark: fix potential NULL deref in dsmark_init()
  net: phy: at803x: use operating parameters from PHY-specific status
  net: phy: extract pause mode
  net: phy: extract link partner advertisement reading
  net: phy: fix write to mii-ctrl1000 register
  ipv6: Handle missing host route in __ipv6_ifa_notify
  net: phy: allow for reset line to be tied to a sleepy GPIO controller
  net: ipv4: avoid mixed n_redirects and rate_tokens usage
  r8152: Set macpassthru in reset_resume callback
  cxgb4:Fix out-of-bounds MSI-X info array access
  Revert "ipv6: Handle race in addrconf_dad_work"
  net: make sock_prot_memory_pressure() return "const char *"
  rxrpc: Fix rxrpc_recvmsg tracepoint
  qmi_wwan: add support for Cinterion CLS8 devices
  tcp: fix slab-out-of-bounds in tcp_zerocopy_receive()
  lib: textsearch: fix escapes in example code
  udp: only do GSO if # of segs > 1
  ...
2019-10-05 08:50:15 -07:00
Linus Torvalds
6fe137cbe3 s390 updates for 5.4-rc2
- Default configs updates.
 
 - Fix build errors with CC_OPTIMIZE_FOR_SIZE due to usage of "i" constraint
   for function arguments. Two kvm changes acked-by Christian Borntraeger.
 
 - Fix -Wunused-but-set-variable warnings in mm code.
 
 - Avoid a constant misuse in qdio.
 
 - Handle a case when cpumf is temporarily unavailable.
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Merge tag 's390-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - defconfig updates

 - Fix build errors with CC_OPTIMIZE_FOR_SIZE due to usage of "i"
   constraint for function arguments. Two kvm changes acked-by Christian
   Borntraeger.

 - Fix -Wunused-but-set-variable warnings in mm code.

 - Avoid a constant misuse in qdio.

 - Handle a case when cpumf is temporarily unavailable.

* tag 's390-5.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  KVM: s390: mark __insn32_query() as __always_inline
  KVM: s390: fix __insn32_query() inline assembly
  s390: update defconfigs
  s390/pci: mark function(s) __always_inline
  s390/mm: mark function(s) __always_inline
  s390/jump_label: mark function(s) __always_inline
  s390/cpu_mf: mark function(s) __always_inline
  s390/atomic,bitops: mark function(s) __always_inline
  s390/mm: fix -Wunused-but-set-variable warnings
  s390: mark __cpacf_query() as __always_inline
  s390/qdio: clarify size of the QIB parm area
  s390/cpumf: Fix indentation in sampling device driver
  s390/cpumsf: Check for CPU Measurement sampling
  s390/cpumf: Use consistant debug print format
2019-10-05 08:44:02 -07:00
Heiko Carstens
d0dea733f6 KVM: s390: mark __insn32_query() as __always_inline
__insn32_query() will not compile if the compiler decides to not
inline it, since it contains an inline assembly with an "i" constraint
with variable contents.

Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-10-05 13:51:22 +02:00
Heiko Carstens
b1c41ac3ce KVM: s390: fix __insn32_query() inline assembly
The inline assembly constraints of __insn32_query() tell the compiler
that only the first byte of "query" is being written to. Intended was
probably that 32 bytes are written to.

Fix and simplify the code and just use a "memory" clobber.

Fixes: d668139718 ("KVM: s390: provide query function for instructions returning 32 byte")
Cc: stable@vger.kernel.org # v5.2+
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2019-10-05 13:51:18 +02:00
Andrey Smirnov
2cf2aa6a69 dma-mapping: fix false positivse warnings in dma_common_free_remap()
Commit 5cf4537975 ("dma-mapping: introduce a dma_common_find_pages
helper") changed invalid input check in dma_common_free_remap() from:

    if (!area || !area->flags != VM_DMA_COHERENT)

to

    if (!area || !area->flags != VM_DMA_COHERENT || !area->pages)

which seem to produce false positives for memory obtained via
dma_common_contiguous_remap()

This triggers the following warning message when doing "reboot" on ZII
VF610 Dev Board Rev B:

WARNING: CPU: 0 PID: 1 at kernel/dma/remap.c:112 dma_common_free_remap+0x88/0x8c
trying to free invalid coherent area: 9ef82980
Modules linked in:
CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 5.3.0-rc6-next-20190820 #119
Hardware name: Freescale Vybrid VF5xx/VF6xx (Device Tree)
Backtrace:
[<8010d1ec>] (dump_backtrace) from [<8010d588>] (show_stack+0x20/0x24)
 r7:8015ed78 r6:00000009 r5:00000000 r4:9f4d9b14
[<8010d568>] (show_stack) from [<8077e3f0>] (dump_stack+0x24/0x28)
[<8077e3cc>] (dump_stack) from [<801197a0>] (__warn.part.3+0xcc/0xe4)
[<801196d4>] (__warn.part.3) from [<80119830>] (warn_slowpath_fmt+0x78/0x94)
 r6:00000070 r5:808e540c r4:81c03048
[<801197bc>] (warn_slowpath_fmt) from [<8015ed78>] (dma_common_free_remap+0x88/0x8c)
 r3:9ef82980 r2:808e53e0
 r7:00001000 r6:a0b1e000 r5:a0b1e000 r4:00001000
[<8015ecf0>] (dma_common_free_remap) from [<8010fa9c>] (remap_allocator_free+0x60/0x68)
 r5:81c03048 r4:9f4d9b78
[<8010fa3c>] (remap_allocator_free) from [<801100d0>] (__arm_dma_free.constprop.3+0xf8/0x148)
 r5:81c03048 r4:9ef82900
[<8010ffd8>] (__arm_dma_free.constprop.3) from [<80110144>] (arm_dma_free+0x24/0x2c)
 r5:9f563410 r4:80110120
[<80110120>] (arm_dma_free) from [<8015d80c>] (dma_free_attrs+0xa0/0xdc)
[<8015d76c>] (dma_free_attrs) from [<8020f3e4>] (dma_pool_destroy+0xc0/0x154)
 r8:9efa8860 r7:808f02f0 r6:808f02d0 r5:9ef82880 r4:9ef82780
[<8020f324>] (dma_pool_destroy) from [<805525d0>] (ehci_mem_cleanup+0x6c/0x150)
 r7:9f563410 r6:9efa8810 r5:00000000 r4:9efd0148
[<80552564>] (ehci_mem_cleanup) from [<80558e0c>] (ehci_stop+0xac/0xc0)
 r5:9efd0148 r4:9efd0000
[<80558d60>] (ehci_stop) from [<8053c4bc>] (usb_remove_hcd+0xf4/0x1b0)
 r7:9f563410 r6:9efd0074 r5:81c03048 r4:9efd0000
[<8053c3c8>] (usb_remove_hcd) from [<8056361c>] (host_stop+0x48/0xb8)
 r7:9f563410 r6:9efd0000 r5:9f5f4040 r4:9f5f5040
[<805635d4>] (host_stop) from [<80563d0c>] (ci_hdrc_host_destroy+0x34/0x38)
 r7:9f563410 r6:9f5f5040 r5:9efa8800 r4:9f5f4040
[<80563cd8>] (ci_hdrc_host_destroy) from [<8055ef18>] (ci_hdrc_remove+0x50/0x10c)
[<8055eec8>] (ci_hdrc_remove) from [<804a2ed8>] (platform_drv_remove+0x34/0x4c)
 r7:9f563410 r6:81c4f99c r5:9efa8810 r4:9efa8810
[<804a2ea4>] (platform_drv_remove) from [<804a18a8>] (device_release_driver_internal+0xec/0x19c)
 r5:00000000 r4:9efa8810
[<804a17bc>] (device_release_driver_internal) from [<804a1978>] (device_release_driver+0x20/0x24)
 r7:9f563410 r6:81c41ed0 r5:9efa8810 r4:9f4a1dac
[<804a1958>] (device_release_driver) from [<804a01b8>] (bus_remove_device+0xdc/0x108)
[<804a00dc>] (bus_remove_device) from [<8049c204>] (device_del+0x150/0x36c)
 r7:9f563410 r6:81c03048 r5:9efa8854 r4:9efa8810
[<8049c0b4>] (device_del) from [<804a3368>] (platform_device_del.part.2+0x20/0x84)
 r10:9f563414 r9:809177e0 r8:81cb07dc r7:81c78320 r6:9f563454 r5:9efa8800
 r4:9efa8800
[<804a3348>] (platform_device_del.part.2) from [<804a3420>] (platform_device_unregister+0x28/0x34)
 r5:9f563400 r4:9efa8800
[<804a33f8>] (platform_device_unregister) from [<8055dce0>] (ci_hdrc_remove_device+0x1c/0x30)
 r5:9f563400 r4:00000001
[<8055dcc4>] (ci_hdrc_remove_device) from [<805652ac>] (ci_hdrc_imx_remove+0x38/0x118)
 r7:81c78320 r6:9f563454 r5:9f563410 r4:9f541010
[<8056538c>] (ci_hdrc_imx_shutdown) from [<804a2970>] (platform_drv_shutdown+0x2c/0x30)
[<804a2944>] (platform_drv_shutdown) from [<8049e4fc>] (device_shutdown+0x158/0x1f0)
[<8049e3a4>] (device_shutdown) from [<8013ac80>] (kernel_restart_prepare+0x44/0x48)
 r10:00000058 r9:9f4d8000 r8:fee1dead r7:379ce700 r6:81c0b280 r5:81c03048
 r4:00000000
[<8013ac3c>] (kernel_restart_prepare) from [<8013ad14>] (kernel_restart+0x1c/0x60)
[<8013acf8>] (kernel_restart) from [<8013af84>] (__do_sys_reboot+0xe0/0x1d8)
 r5:81c03048 r4:00000000
[<8013aea4>] (__do_sys_reboot) from [<8013b0ec>] (sys_reboot+0x18/0x1c)
 r8:80101204 r7:00000058 r6:00000000 r5:00000000 r4:00000000
[<8013b0d4>] (sys_reboot) from [<80101000>] (ret_fast_syscall+0x0/0x54)
Exception stack(0x9f4d9fa8 to 0x9f4d9ff0)
9fa0:                   00000000 00000000 fee1dead 28121969 01234567 379ce700
9fc0: 00000000 00000000 00000000 00000058 00000000 00000000 00000000 00016d04
9fe0: 00028e0c 7ec87c64 000135ec 76c1f410

Restore original invalid input check in dma_common_free_remap() to
avoid this problem.

Fixes: 5cf4537975 ("dma-mapping: introduce a dma_common_find_pages helper")
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
[hch: just revert the offending hunk instead of creating a new helper]
Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-10-05 10:24:17 +02:00
Dmitry Goldin
86cdd2fdc4 kheaders: make headers archive reproducible
In commit 43d8ce9d65 ("Provide in-kernel headers to make
extending kernel easier") a new mechanism was introduced, for kernels
>=5.2, which embeds the kernel headers in the kernel image or a module
and exposes them in procfs for use by userland tools.

The archive containing the header files has nondeterminism caused by
header files metadata. This patch normalizes the metadata and utilizes
KBUILD_BUILD_TIMESTAMP if provided and otherwise falls back to the
default behaviour.

In commit f7b101d330 ("kheaders: Move from proc to sysfs") it was
modified to use sysfs and the script for generation of the archive was
renamed to what is being patched.

Signed-off-by: Dmitry Goldin <dgoldin+lkml@protonmail.ch>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Joel Fernandes (Google) <joel@joelfernandes.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-10-05 15:29:49 +09:00
Masahiro Yamada
d188b8c901 kbuild: update compile-test header list for v5.4-rc2
Commit 6dc280ebee ("coda: remove uapi/linux/coda_psdev.h") removed
a header in question. Some more build errors were fixed. Add more
headers into the test coverage.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-10-05 15:29:49 +09:00
Masahiro Yamada
43496709f1 kbuild: two minor updates for Documentation/kbuild/modules.rst
Capitalize the first word in the sentence.

Use obj-m instead of obj-y. obj-y still works, but we have no built-in
objects in external module builds. So, obj-m is better IMHO.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-10-05 15:29:49 +09:00
Masahiro Yamada
7a82e3fa28 scripts/setlocalversion: clear local variable to make it work for sh
Geert Uytterhoeven reports a strange side-effect of commit 858805b336
("kbuild: add $(BASH) to run scripts with bash-extension"), which
inserts the contents of a localversion file in the build directory twice.

[Steps to Reproduce]
  $ echo bar > localversion
  $ mkdir build
  $ cd build/
  $ echo foo > localversion
  $ make -s -f ../Makefile defconfig include/config/kernel.release
  $ cat include/config/kernel.release
  5.4.0-rc1foofoobar

This comes down to the behavior change of local variables.

The 'man sh' on my Ubuntu machine, where sh is an alias to dash,
explains as follows:
  When a variable is made local, it inherits the initial value and
  exported and readonly flags from the variable with the same name
  in the surrounding scope, if there is one. Otherwise, the variable
  is initially unset.

[Test Code]

  foo ()
  {
          local res
          echo "res: $res"
  }

  res=1
  foo

[Result]

  $ sh test.sh
  res: 1
  $ bash test.sh
  res:

So, scripts/setlocalversion correctly works only for bash in spite of
its hashbang being #!/bin/sh. Nobody had noticed it before because
CONFIG_SHELL was previously set to bash almost all the time.

Now that CONFIG_SHELL is set to sh, we must write portable and correct
code. I gave the Fixes tag to the commit that uncovered the issue.

Clear the variable 'res' in collect_files() to make it work for sh
(and it also works on distributions where sh is an alias to bash).

Fixes: 858805b336 ("kbuild: add $(BASH) to run scripts with bash-extension")
Reported-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
2019-10-05 15:29:49 +09:00
Jacob Keller
82fdd12b95 namespace: fix namespace.pl script to support relative paths
The namespace.pl script does not work properly if objtree is not set to
an absolute path. The do_nm function is run from within the find
function, which changes directories.

Because of this, appending objtree, $File::Find::dir, and $source, will
return a path which is not valid from the current directory.

This used to work when objtree was set to an absolute path when using
"make namespacecheck". It appears to have not worked when calling
./scripts/namespace.pl directly.

This behavior was changed in 7e1c04779e ("kbuild: Use relative path
for $(objtree)", 2014-05-14)

Rather than fixing the Makefile to set objtree to an absolute path, just
fix namespace.pl to work when srctree and objtree are relative. Also fix
the script to use an absolute path for these by default.

Use the File::Spec module for this purpose. It's been part of perl
5 since 5.005.

The curdir() function is used to get the current directory when the
objtree and srctree aren't set in the environment.

rel2abs() is used to convert possibly relative objtree and srctree
environment variables to absolute paths.

Finally, the catfile() function is used instead of string appending
paths together, since this is more robust when joining paths together.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-10-05 15:29:49 +09:00
Masahiro Yamada
01bb25156d video/logo: do not generate unneeded logo C files
Currently, all the logo C files are generated irrespective of the
CONFIG options. Adding them to extra-y is wrong. What we need to do
here is to add them to 'targets' so that if_changed works properly.

Files listed in 'targets' are cleaned, so clean-files is unneeded.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-10-05 15:29:49 +09:00