Commit Graph

771 Commits

Author SHA1 Message Date
Linus Torvalds
7d1fc01afc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  floppy: make local variable non-static
  exynos: fixes an incorrect header guard
  dt-bindings: fixes some incorrect header guards
  cpufreq-dt: correct dead link in documentation
  cpufreq: ARM big LITTLE: correct dead link in documentation
  treewide: Fix typos in printk
  Documentation: filesystem: Fix typo in fs/eventfd.c
  fs/super.c: use && instead of & for warn_on condition
  Documentation: fix sysfs-ptp
  lib: scatterlist: fix Kconfig description
2016-01-14 17:04:19 -08:00
Mauro Carvalho Chehab
df2f94e563 [media] dvb: modify core to implement interfaces/entities at MC new gen
The Media Controller New Generation redefines the types for both
interfaces and entities to be used on DVB. Make the needed
changes at the DVB core for all interfaces, entities and
data and interface links to appear in the graph.

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-11 12:18:52 -02:00
Mauro Carvalho Chehab
f0b0faff78 [media] cx23885-dvb: move initialization of a8293_pdata
Smatch complains about where the au8293_data is placed:

drivers/media/pci/cx23885/cx23885-dvb.c:2174 dvb_register() info: 'a8293_pdata' is not actually initialized (unreached code).

It is not actually expected to have such initialization at

switch {
	foo = bar;

	case:
...
}

Not really sure how gcc does that, but this is something that I would
expect that different compilers would do different things.

David Howells checked with the compiler people: it's not really expected to
initialise as expected.

So, move the initialization outside the switch(), making smatch to
shut up one warning.

Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18 15:20:44 -02:00
Mauro Carvalho Chehab
aee5f29e5a [media] cx23885-dvb: initialize a8293_pdata
As reported by smatch:
	drivers/media/pci/cx23885/cx23885-dvb.c:2174 dvb_register() info: 'a8293_pdata' is not actually initialized (unreached code).

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18 14:15:56 -02:00
Junghak Sung
d6dd645eae [media] media: videobuf2: Move timestamp to vb2_buffer
Move timestamp from struct vb2_v4l2_buffer to struct vb2_buffer
for common use, and change its type to u64 in order to handling
y2038 problem. This patch also includes all device drivers' changes related to
this restructuring.

Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hansverk@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18 13:53:31 -02:00
Hans Verkuil
9057bc2b35 [media] solo6x10: use v4l2_get_timestamp to fill in buffer timestamp
The timestamp of a v4l2_buffer was advertised as being CLOCK_MONOTONIC,
but instead a timestamp from a header field was used. This is inconsistent
and not what applications expect. Use v4l2_get_timestamp to properly
set the timestamp.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18 13:49:47 -02:00
Hans Verkuil
df9ecb0cad [media] vb2: drop v4l2_format argument from queue_setup
The queue_setup callback has a void pointer that is just for V4L2
and is the pointer to the v4l2_format struct that was passed to
VIDIOC_CREATE_BUFS. The idea was that drivers would use the information
from that struct to buffers suitable for the requested format.

After the vb2 split series this pointer is now a void pointer,
which is ugly, and the reality is that all existing drivers will
effectively just look at the sizeimage field of v4l2_format.

To make this more generic the queue_setup callback is changed:
the void pointer is dropped, instead if the *num_planes argument
is 0, then use the current format size, if it is non-zero, then
it contains the number of requested planes and the sizes array
contains the requested sizes. If either is unsupported, then return
-EINVAL, otherwise use the requested size(s).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18 13:48:19 -02:00
Hans Verkuil
ecc2fe20e6 [media] cx23885: video instead of vbi register used
The VID_A_GPCNT register is for video, not vbi. Read from the right
register and don't write to the video register.

Based upon Devin's initial patch made for an older kernel which I
cleaned up and rebased. Thanks to Kernel Labs for that work.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18 13:37:12 -02:00
Hans Verkuil
6c43a2178e [media] cx23885: add support for ViewCast 260e and 460e
Add support for these two new cards.

Based upon Devin's initial patch made for an older kernel which I
cleaned up and rebased. Thanks to Kernel Labs for that work.

Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18 13:36:43 -02:00
Hans Verkuil
80954cbbe4 [media] ivtv/cx18: fix inverted pixel aspect ratio
These two drivers reported the pixel aspect ratio the wrong way around.
This caused qv4l2 to scale the image incorrectly.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18 13:30:18 -02:00
Hans Verkuil
e80bf856af [media] cx23885: fix format/crop handling
While testing the cx23885 driver with various TV standards I found
a number of bugs:

1) norm_maxw() returned 768 instead of 720 for PAL formats. This should
   always be 720, so drop this inline function and just always use 720.
2) cropcap() was missing, so the pixelaspect was never known and qv4l2 would
   scale the image incorrectly. Add cropcap support.
3) cx23885_set_tvnorm() should just return 0 if the same standard was
   set again. If another standard is set, then reset the width/height and
   call set_fmt for the subdevs.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-18 13:29:13 -02:00
Masanari Iida
e3d132d123 treewide: Fix typos in printk
This patch fix multiple spelling typos found in
various part of kernel.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-12-08 14:59:19 +01:00
Mauro Carvalho Chehab
991ce92f8d [media] use https://linuxtv.org for LinuxTV URLs
While https was always supported on linuxtv.org, only in
Dec 3 2015 the website is using valid certificates.

As we're planning to drop pure http support on some
future, change all references at the media subsystem
to point to the https URL instead.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-04 10:38:59 -02:00
Lars-Peter Clausen
f7488c50f3 [media] dm1105: Remove unnecessary synchronize_irq() before free_irq()
Calling synchronize_irq() right before free_irq() is quite useless. On one
hand the IRQ can easily fire again before free_irq() is entered, on the
other hand free_irq() itself calls synchronize_irq() internally (in a race
condition free way), before any state associated with the IRQ is freed.

Patch was generated using the following semantic patch:
// <smpl>
@@
expression irq;
@@
-synchronize_irq(irq);
 free_irq(irq, ...);
// </smpl>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 15:09:28 -02:00
Julia Lawall
083206fc3f [media] cx231xx: constify cx2341x_handler_ops structures
The cx2341x_handler_ops structures are never modified, so declare them as
const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 11:27:08 -02:00
Julia Lawall
22dbec265c [media] media, sound: tea575x: constify snd_tea575x_ops structures
The snd_tea575x_ops structures are never modified, so declare them as
const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 11:26:45 -02:00
Hans Verkuil
85f9e06c59 [media] v4l2-dv-timings: add new arg to v4l2_match_dv_timings
Add the new match_reduced_fps argument to v4l2_match_dv_timings().
Depending on the situation you may or may not desire to match the
reduced_fps flag. Typically only HDMI transmitters will need to
check for this flag.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 11:26:14 -02:00
Mauro Carvalho Chehab
10897dacea Linux 4.4-rc2
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Merge tag 'v4.4-rc2' into patchwork

Linux 4.4-rc2

Several PCI media drivers got broken on Kernel 4.4-rc1, due to
pci_set_dma_mask() regressions. So, we need to add those fixes back
for the media drivers to work again.

* tag 'v4.4-rc2': (335 commits)
  Linux 4.4-rc2
  slab/slub: adjust kmem_cache_alloc_bulk API
  slub: add missing kmem cgroup support to kmem_cache_free_bulk
  slub: fix kmem cgroup bug in kmem_cache_alloc_bulk
  slub: optimize bulk slowpath free by detached freelist
  slub: support for bulk free with SLUB freelists
  parisc: Map kernel text and data on huge pages
  parisc: Add Huge Page and HUGETLBFS support
  parisc: Use long branch to do_syscall_trace_exit
  parisc: Increase initial kernel mapping to 32MB on 64bit kernel
  parisc: Initialize the fault vector earlier in the boot process.
  parisc: Add defines for Huge page support
  parisc: Drop unused MADV_xxxK_PAGES flags from asm/mman.h
  serial: export fsl8250_handle_irq
  serial: 8250_mid: Add missing dependency
  tty: audit: Fix audit source
  serial: etraxfs-uart: Fix crash
  serial: fsl_lpuart: Fix earlycon support
  bcm63xx_uart: Use the device name when registering an interrupt
  tty: Fix direct use of tty buffer work
  ...
2015-11-23 14:16:58 -02:00
Christoph Hellwig
1a47de6e4a various: fix pci_set_dma_mask return value checking
pci_set_dma_mask returns a negative errno value, not a bool like
pci_dma_supported.  This of course was just a giant test for attention :)

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reported-by: Jongman Heo <jongman.heo@samsung.com>
Tested-by: Jongman Heo <jongman.heo@samsung.com>	[pcnet32]
Acked-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-20 16:17:32 -08:00
Heiner Kallweit
439be34800 [media] media: cx23885: fix type of allowed_protos
Protocol lists are represented as 64-bit bitmaps,
therefore use u64 instead of unsigned long.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:54:21 -02:00
Nicholas Mc Guire
4bdbcb3197 [media] ddbridge: fix wait_event_timeout return handling
API conformance testing for completions with coccinelle spatches are being
used to locate API usage inconsistencies:
./drivers/media/pci/ddbridge/ddbridge-core.c:89
        incorrect check for negative return

Return type of wait_event_timeout is signed long not int and the
return type is >=0 always thus the negative check is unnecessary..
As stat is used here exclusively its type is simply changed and the
negative return check dropped.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-18 12:21:29 -02:00
Dan Carpenter
0dac45f0e5 [media] av7110: potential divide by zero
"len" comes from dvb_video_ioctl() and there is a possibility that it is
zero.  We do a divide by len later in the function so that's not ok.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-17 14:38:18 -02:00
Dan Carpenter
75d63a40a5 [media] av7110: don't allow negative volumes
The issue here is that we there is a static checker warning because we
have a user controlled volume setting and we cap the upper bound but we
allow negative numbers.  Negative volumes don't make sense, so let's
make these variables unsigned.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-17 14:36:39 -02:00
Mauro Carvalho Chehab
d647f0b70c [media] include/media: move driver interface headers to a separate dir
Let's not mix headers used by the core with those headers that
are needed by some driver-specific interface header.

The headers used on drivers were manually moved using:
    mkdir include/media/drv-intf/
    git mv include/media/cx2341x.h include/media/cx25840.h \
	include/media/exynos-fimc.h include/media/msp3400.h \
	include/media/s3c_camif.h include/media/saa7146.h \
	include/media/saa7146_vv.h  include/media/sh_mobile_ceu.h \
	include/media/sh_mobile_csi2.h include/media/sh_vou.h \
	include/media/si476x.h include/media/soc_mediabus.h \
	include/media/tea575x.h include/media/drv-intf/

And the references for those headers were corrected using:

    MAIN_DIR="media/"
    PREV_DIR="media/"
    DIRS="drv-intf/"

    echo "Checking affected files" >&2
    for i in $DIRS; do
	for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do
		 n=`basename $j`
		git grep -l $n
	done
    done|sort|uniq >files && (
	echo "Handling files..." >&2;
	echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done";
	);
	echo "Handling documentation..." >&2;
	echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "  perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done"
	);
    ) >script && . ./script

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-11-17 06:57:29 -02:00
Mauro Carvalho Chehab
b5dcee225c [media] include/media: split I2C headers from V4L2 core
Currently, include/media is messy, as it contains both the V4L2 core
headers and some driver-specific headers on the same place. That makes
harder to identify what core headers should be documented and what
headers belong to I2C drivers that are included only by bridge/main
drivers that would require the functions provided by them.

Let's move those i2c specific files to its own subdirectory.

The files to move were produced via the following script:
	mkdir include/media/i2c
	(cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done)
	(cd include/media; for i in *.h; do n=`echo $i|sed s/.h$/.c/`; if [ -e ../../drivers/media/*/i2c/$n ]; then echo $i; git mv $i i2c/; fi; done)
	for i in include/media/*.h; do n=`basename $i`;  (for j in $(git grep -l $n); do dirname $j; done)|sort|uniq|grep -ve '^.$' > list; num=$(wc -l list|cut -d' ' -f1); if [ $num == 1 ]; then if [ "`grep i2c list`" != "" ]; then git mv $i include/media/i2c; fi; fi; done

And the references corrected via this script:
    MAIN_DIR="media/"
    PREV_DIR="media/"
    DIRS="i2c/"

    echo "Checking affected files" >&2
    for i in $DIRS; do
	for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do
		 n=`basename $j`
		git grep -l $n
	done
    done|sort|uniq >files && (
	echo "Handling files..." >&2;
	echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done";
	);
	echo "Handling documentation..." >&2;
	echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "  perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done"
	);
    ) >script && . ./script

Merged Sakari Ailus patch that moves smiapp.h to include/media/i2c.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2015-11-17 06:57:11 -02:00
Mauro Carvalho Chehab
d55ebd07b6 [media] ivtv: avoid going past input/audio array
As reported by smatch:
	drivers/media/pci/ivtv/ivtv-driver.c:832 ivtv_init_struct2() error: buffer overflow 'itv->card->video_inputs' 6 <= 6

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-16 07:38:04 -02:00
Mauro Carvalho Chehab
823873481b [media] Revert "[media] ivtv: avoid going past input/audio array"
This patch broke ivtv logic, as reported at
 https://bugzilla.redhat.com/show_bug.cgi?id=1278942

This reverts commit 09290cc885.

Cc: stable@vger.kernel.org # for v4.1 and upper
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-16 07:37:45 -02:00
Christoph Hellwig
e806f75d52 netup_unidvb: use pci_set_dma_mask insted of pci_dma_supported
This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Sergey Kozlov <serjk@netup.ru>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-10 16:32:11 -08:00
Christoph Hellwig
4571e4a2fc cx23885: use pci_set_dma_mask insted of pci_dma_supported
This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-10 16:32:11 -08:00
Christoph Hellwig
251c5912d9 cx25821: use pci_set_dma_mask insted of pci_dma_supported
This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-10 16:32:11 -08:00
Christoph Hellwig
111be8b28d cx88: use pci_set_dma_mask insted of pci_dma_supported
This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-10 16:32:11 -08:00
Christoph Hellwig
f546e121b5 saa7134: use pci_set_dma_mask insted of pci_dma_supported
This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Pawel Osciak <pawel@osciak.com>
Cc: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-10 16:32:11 -08:00
Christoph Hellwig
45fa9c039a saa7164: use pci_set_dma_mask insted of pci_dma_supported
This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-10 16:32:11 -08:00
Christoph Hellwig
bad007bca7 tw68-core: use pci_set_dma_mask insted of pci_dma_supported
This ensures the dma mask that is supported by the driver is recorded
in the device structure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Hans Verkuil <hverkuil@xs4all.nl>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Pawel Osciak <pawel@osciak.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-10 16:32:11 -08:00
Mel Gorman
d0164adc89 mm, page_alloc: distinguish between being unable to sleep, unwilling to sleep and avoiding waking kswapd
__GFP_WAIT has been used to identify atomic context in callers that hold
spinlocks or are in interrupts.  They are expected to be high priority and
have access one of two watermarks lower than "min" which can be referred
to as the "atomic reserve".  __GFP_HIGH users get access to the first
lower watermark and can be called the "high priority reserve".

Over time, callers had a requirement to not block when fallback options
were available.  Some have abused __GFP_WAIT leading to a situation where
an optimisitic allocation with a fallback option can access atomic
reserves.

This patch uses __GFP_ATOMIC to identify callers that are truely atomic,
cannot sleep and have no alternative.  High priority users continue to use
__GFP_HIGH.  __GFP_DIRECT_RECLAIM identifies callers that can sleep and
are willing to enter direct reclaim.  __GFP_KSWAPD_RECLAIM to identify
callers that want to wake kswapd for background reclaim.  __GFP_WAIT is
redefined as a caller that is willing to enter direct reclaim and wake
kswapd for background reclaim.

This patch then converts a number of sites

o __GFP_ATOMIC is used by callers that are high priority and have memory
  pools for those requests. GFP_ATOMIC uses this flag.

o Callers that have a limited mempool to guarantee forward progress clear
  __GFP_DIRECT_RECLAIM but keep __GFP_KSWAPD_RECLAIM. bio allocations fall
  into this category where kswapd will still be woken but atomic reserves
  are not used as there is a one-entry mempool to guarantee progress.

o Callers that are checking if they are non-blocking should use the
  helper gfpflags_allow_blocking() where possible. This is because
  checking for __GFP_WAIT as was done historically now can trigger false
  positives. Some exceptions like dm-crypt.c exist where the code intent
  is clearer if __GFP_DIRECT_RECLAIM is used instead of the helper due to
  flag manipulations.

o Callers that built their own GFP flags instead of starting with GFP_KERNEL
  and friends now also need to specify __GFP_KSWAPD_RECLAIM.

The first key hazard to watch out for is callers that removed __GFP_WAIT
and was depending on access to atomic reserves for inconspicuous reasons.
In some cases it may be appropriate for them to use __GFP_HIGH.

The second key hazard is callers that assembled their own combination of
GFP flags instead of starting with something like GFP_KERNEL.  They may
now wish to specify __GFP_KSWAPD_RECLAIM.  It's almost certainly harmless
if it's missed in most cases as other activity will wake kswapd.

Signed-off-by: Mel Gorman <mgorman@techsingularity.net>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Vitaly Wool <vitalywool@gmail.com>
Cc: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-11-06 17:50:42 -08:00
Linus Torvalds
b037865754 media updates for v4.4-rc1
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Merge tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 "Media updates, including:

   - Lots of improvements at the kABI documentation
   - Split of Videobuf2 into a common part and a V4L2 specific one
   - Split of the VB2 tracing events into a separate header file
   - s5p-mfc got support for Exynos 5433
   - v4l2 fixes for 64-bits alignment when running 32 bits userspace
     on ARM
   - Added support for SDR radio transmitter at core, vivid and hackrf
     drivers
   - Some y2038 fixups
   - Some improvements at V4L2 colorspace support
   - saa7164 converted to use the V4L2 core control framework
   - several new boards additions, cleanups and fixups

  PS: There are two patches for scripts/kernel-doc that are needed by
  the documentation patches on Media.  Jon is OK on merging those via
  my tree"

* tag 'media/v4.4-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (146 commits)
  [media] c8sectpfe: Remove select on CONFIG_FW_LOADER_USER_HELPER_FALLBACK
  [media] DocBook media: update copyright/version numbers
  [media] ivtv: Convert to get_user_pages_unlocked()
  [media] media/v4l2-ctrls: fix setting autocluster to manual with VIDIOC_S_CTRL
  [media] DocBook media: Fix a typo in encoder cmd
  [media] DocBook: add SDR specific info to G_MODULATOR / S_MODULATOR
  [media] DocBook: add SDR specific info to G_TUNER / S_TUNER
  [media] hackrf: do not set human readable name for formats
  [media] hackrf: add support for transmitter
  [media] hackrf: switch to single function which configures everything
  [media] hackrf: add control for RF amplifier
  [media] DocBook: add modulator type field
  [media] v4l: add type field to v4l2_modulator struct
  [media] DocBook: document SDR transmitter
  [media] v4l2: add support for SDR transmitter
  [media] DocBook: document tuner RF gain control
  [media] v4l2: add RF gain control
  [media] v4l2: rename V4L2_TUNER_ADC to V4L2_TUNER_SDR
  [media] media/vivid-osd: fix info leak in ioctl
  [media] media: videobuf2: Move v4l2-specific stuff to videobuf2-v4l2
  ...
2015-11-05 12:05:15 -08:00
Abylay Ospan
9d2b064c0a [media] netup_unidvb: fix potential crash when spi is NULL
Signed-off-by: Abylay Ospan <aospan@netup.ru>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-22 15:48:26 -02:00
Jan Kara
520e82d44b [media] ivtv: Convert to get_user_pages_unlocked()
Convert ivtv_yuv_prep_user_dma() to use get_user_pages_unlocked() so
that we don't unnecessarily leak knowledge about mm locking into drivers
code.

CC: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-20 15:59:01 -02:00
Junghak Sung
33119e80c3 [media] media: videobuf2: Change queue_setup argument
Replace struct v4l2_format * with void * to make queue_setup()
for common use.
And then, modify all device drivers related with this change.

Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fix missing const in fimc-lite.c]

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-20 14:48:39 -02:00
Mauro Carvalho Chehab
2f684b239c [media] dvb: get rid of enum dmx_success
This enum is not actually used anymore. The only value used from
the enum is DMX_OK, passed as a parameter on two callbacks.

Yet, this value is not used anywhere. So, just remove it.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-06 19:53:02 -03:00
Mauro Carvalho Chehab
340ccedb76 [media] netup_unidvb_ci: Fix dereference of noderef expression
Fix those sparse warnings:
	drivers/media/pci/netup_unidvb/netup_unidvb_ci.c:150:40: warning: dereference of noderef expression
	drivers/media/pci/netup_unidvb/netup_unidvb_ci.c:165:31: warning: dereference of noderef expression
	drivers/media/pci/netup_unidvb/netup_unidvb_ci.c:174:36: warning: dereference of noderef expression
	drivers/media/pci/netup_unidvb/netup_unidvb_ci.c:189:27: warning: dereference of noderef expression

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 19:02:45 -03:00
Mauro Carvalho Chehab
d91b1d912e [media] netup_unidvb: remove most of the sparse warnings
There is a mess at the namespace on netup_unidvb:

drivers/media/pci/netup_unidvb/netup_unidvb_core.c:192:41: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:192:41:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:192:41:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:194:26: warning: cast removes address space of expression
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:194:26: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:194:26:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:194:26:    got unsigned short [usertype] *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:196:41: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:196:41:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:196:41:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:198:26: warning: cast removes address space of expression
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:198:26: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:198:26:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:198:26:    got unsigned short [usertype] *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:210:37: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:210:37:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:210:37:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:211:32: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:211:32:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:211:32:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:213:33: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:213:33:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:213:33:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:528:49: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:528:49:    expected void const volatile [noderef] <asn:2>*src
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:528:49:    got unsigned char [usertype] *
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:541:49: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:541:49:    expected void const volatile [noderef] <asn:2>*src
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:541:49:    got unsigned char [usertype] *
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:647:22: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:647:22:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:647:22:    got unsigned char [usertype] *addr_virt
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:650:22: warning: cast removes address space of expression
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:654:59: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:654:59:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:654:59:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:655:56: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:655:56:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:655:56:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:656:23: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:656:23:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:656:23:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:658:31: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:658:31:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:658:31:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:660:33: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:660:33:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_core.c:660:33:    got restricted __le32 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:81:25: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:81:25:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:81:25:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:82:38: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:82:38:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:82:38:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:104:33: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:104:33:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:104:33:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:105:47: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:105:47:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:105:47:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:112:33: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:112:33:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:112:33:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:113:47: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:113:47:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:113:47:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:132:36: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:132:36:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:132:36:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:133:32: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:133:32:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:133:32:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:134:32: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:134:32:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:134:32:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:135:32: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:135:32:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:135:32:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:136:27: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:136:27:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:136:27:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:137:27: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:137:27:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:137:27:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:144:28: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:144:28:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:144:28:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:150:34: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:150:34:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:150:34:    got unsigned char *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:157:34: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:157:34:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:157:34:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:158:29: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:158:29:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:158:29:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:165:35: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:165:35:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:165:35:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:170:34: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:170:34:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:170:34:    got unsigned char *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:181:34: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:181:34:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:181:34:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:182:29: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:182:29:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:182:29:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:189:29: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:189:29:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:189:29:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:191:37: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:191:37:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:191:37:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:192:35: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:192:35:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:192:35:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:194:21: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:194:21:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:194:21:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:195:9: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:195:9:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:195:9:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:195:9: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:195:9:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:195:9:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:195:9: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:195:9:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:195:9:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:205:47: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:205:47:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:205:47:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:206:29: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:206:29:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:206:29:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:272:53: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:272:53:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:272:53:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:274:53: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:274:53:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:274:53:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_i2c.c:323:22: warning: cast removes address space of expression
drivers/media/pci/netup_unidvb/netup_unidvb_ci.c:229:38: warning: cast removes address space of expression
drivers/media/pci/netup_unidvb/netup_unidvb_ci.c:229:38: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_ci.c:229:38:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_ci.c:229:38:    got unsigned short [usertype] *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:89:25: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:89:25:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:89:25:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:96:46: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:96:46:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:96:46:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:97:25: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:97:25:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:97:25:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:98:49: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:98:49:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:98:49:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:116:44: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:116:44:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:116:44:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:117:23: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:117:23:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:117:23:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:132:48: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:132:48:    expected void volatile [noderef] <asn:2>*dst
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:132:48:    got unsigned char *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:136:46: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:136:46:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:136:46:    got unsigned char *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:144:37: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:144:37:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:144:37:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:145:25: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:145:25:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:145:25:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:154:52: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:154:52:    expected void const volatile [noderef] <asn:2>*src
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:154:52:    got unsigned char *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:205:23: warning: cast removes address space of expression
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:206:24: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:206:24:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:206:24:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:243:25: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:243:25:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:243:25:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:244:46: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:244:46:    expected void volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:244:46:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:245:25: warning: incorrect type in argument 1 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:245:25:    expected void const volatile [noderef] <asn:2>*addr
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:245:25:    got restricted __le16 *<noident>
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:246:49: warning: incorrect type in argument 2 (different address spaces)
drivers/media/pci/netup_unidvb/netup_unidvb_spi.c:246:49:    expected void volatile [noderef] <asn:2>*addr

Fix the above sparse warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 18:57:35 -03:00
Junghak Sung
2d7007153f [media] media: videobuf2: Restructure vb2_buffer
Remove v4l2 stuff - v4l2_buf, v4l2_plane - from struct vb2_buffer.

Add new member variables - bytesused, length, offset, userptr, fd,
data_offset - to struct vb2_plane in order to cover all information
of v4l2_plane.
struct vb2_plane {
        <snip>
        unsigned int            bytesused;
        unsigned int            length;
        union {
                unsigned int    offset;
                unsigned long   userptr;
                int             fd;
        } m;
        unsigned int            data_offset;
}

Replace v4l2_buf with new member variables - index, type, memory - which
are common fields for buffer management.
struct vb2_buffer {
        <snip>
        unsigned int            index;
        unsigned int            type;
        unsigned int            memory;
        unsigned int            num_planes;
        struct vb2_plane        planes[VIDEO_MAX_PLANES];
        <snip>
};

v4l2 specific fields - flags, field, timestamp, timecode,
sequence - are moved to vb2_v4l2_buffer in videobuf2-v4l2.c
struct vb2_v4l2_buffer {
        struct vb2_buffer       vb2_buf;

        __u32                   flags;
        __u32                   field;
        struct timeval          timestamp;
        struct v4l2_timecode    timecode;
        __u32                   sequence;
};

Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 09:04:43 -03:00
Junghak Sung
c139990e84 [media] media: videobuf2: Replace videobuf2-core with videobuf2-v4l2
Make videobuf2-v4l2 as a wrapper of videobuf2-core for v4l2-use.
And replace videobuf2-core.h with videobuf2-v4l2.h.
This renaming change should be accompanied by the modifications
of all device drivers that include videobuf2-core.h.
It can be done with just running this shell script.

replace()
{
str1=$1
str2=$2
dir=$3
for file in $(find $dir -name *.h -o -name *.c -o -name Makefile)
do
    echo $file
    sed "s/$str1/$str2/g" $file > $file.out
    mv $file.out $file
done
}

replace "videobuf2-core" "videobuf2-v4l2" "include/media/"
replace "videobuf2-core" "videobuf2-v4l2" "drivers/media/"
replace "videobuf2-core" "videobuf2-v4l2" "drivers/usb/gadget/"
replace "videobuf2-core" "videobuf2-v4l2" "drivers/staging/media/"

Signed-off-by: Junghak Sung <jh1009.sung@samsung.com>
Signed-off-by: Geunyoung Kim <nenggun.kim@samsung.com>
Acked-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 08:48:18 -03:00
Luis de Bethencourt
d275d93590 [media] cx25821, cx88, tm6000: use SNDRV_DEFAULT_ENABLE_PNP
Instead of manually initializing the bool array enable, use the
SNDRV_DEFAULT_ENABLE_PNP macro. As most drivers do.

Signed-off-by: Luis de Bethencourt <luisbg@osg.samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 08:42:52 -03:00
Hans Verkuil
fc88dd16a0 [media] cobalt: fix Kconfig dependency
The cobalt driver should depend on VIDEO_V4L2_SUBDEV_API.

This fixes this kbuild error:

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   99bc7215bc
commit: 85756a069c [media] cobalt: add new driver
config: x86_64-randconfig-s0-09201514 (attached as .config)
reproduce:
  git checkout 85756a069c
  # save the attached .config to linux build tree
  make ARCH=x86_64

All error/warnings (new ones prefixed by >>):

   drivers/media/i2c/adv7604.c: In function 'adv76xx_get_format':
>> drivers/media/i2c/adv7604.c:1853:9: error: implicit declaration of function 'v4l2_subdev_get_try_format' [-Werror=implicit-function-declaration]
      fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
            ^
   drivers/media/i2c/adv7604.c:1853:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
          ^
   drivers/media/i2c/adv7604.c: In function 'adv76xx_set_format':
   drivers/media/i2c/adv7604.c:1882:7: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
      fmt = v4l2_subdev_get_try_format(sd, cfg, format->pad);
          ^
   cc1: some warnings being treated as errors

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 08:42:32 -03:00
Arnd Bergmann
5ba0e2c3ad [media] use v4l2_get_timestamp where possible
This is a preparation for a change to the type of v4l2 timestamps.
v4l2_get_timestamp() is a helper function that reads the monotonic
time and stores it into a 'struct timeval'. Multiple drivers implement
the same thing themselves for historic reasons.

Changing them all to use v4l2_get_timestamp() is more consistent
and reduces the amount of code duplication, and most importantly
simplifies the following changes.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
[hans.verkuil@cisco.com: dropped the v4l2-dev.c patch that didn't belong here]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 08:29:23 -03:00
Hans Verkuil
225b783b38 [media] saa7164: video and vbi ports share the same input/tuner/std
The vbi port should pass any tuner/input/standard information on
to the video port since in the input and tuner are shared between
the two.

There is no reason to duplicate this code, just pass the ioctls on
to the video encoder port.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 08:26:53 -03:00
Hans Verkuil
6b99612606 [media] saa7164: fix input and tuner compliance problems
- the frequency range was never set
- there was no initial frequency
- missing index/tuner checks
- inconsistent standard reporting
- removed unnecessary tuner type checks (the core handles that)
- clamp frequency to the valid frequency range as per the V4L2 spec

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 08:25:53 -03:00
Hans Verkuil
4e203f7fdd [media] saa7164: remove unused videobuf references
This driver includes videobuf headers and selects VIDEOBUF_DVB, but
videobuf isn't used at all.

Remove this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-01 08:25:06 -03:00