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path: root/drivers/media/pci
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2018-07-30media: ddbridge: probe for LNBH25 chips before attachingDaniel Scheller
In demod_attach_stv0910(), the LNBH25 IC is being blindly attached and, if the result is bad, blindly attached on another possible I2C address. The LNBH25 uses it's set_voltage function to test for the IC and will print an error to the kernel log on failure. Prevent this by probing the possible I2C address and use this (and only this) to attach the LNBH25 I2C driver. This also allows the stv0910 attach function to be a bit cleaner. Picked up from the upstream dddvb GIT and adapted for the LNBH25 driver variant from the kernel tree. Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-30media: pci/pt1: suppress compiler warning in xtensa archAkihiro Tsukada
Found and reported by kbuild test robot: Message ID: <201805052003.MC007f9h%fengguang.wu@intel.com> and holding an address of an empty struct in .driver.pm does no harm when CONFIG_PM_SLEEP is not defined. Signed-off-by: Akihiro Tsukada <tskd08@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: pci: ivtv: Replace GFP_ATOMIC with GFP_KERNELJia-Ju Bai
ivtv_probe() and ivtvfb_init_card() are never called in atomic context. They call kzalloc() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC can be replaced with GFP_KERNEL. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: pci: cx88: Replace mdelay() with msleep() in dvb_register()Jia-Ju Bai
dvb_register() is never called in atomic context. It calls mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: pci: cx88: Replace mdelay() with msleep() in cx88_card_setup_pre_i2c()Jia-Ju Bai
cx88_card_setup_pre_i2c() is never called in atomic context. It calls mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: pci: cx25821: Replace mdelay() with msleep()Jia-Ju Bai
cx25821_gpio_init(), cx25821_initialize() and cx25821_registers_init() are never called in atomic context. They call mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: pci: cx23885: Replace mdelay() with msleep() in cx23885_reset()Jia-Ju Bai
cx23885_reset() is never called in atomic context. It calls mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: pci: cx23885: Replace mdelay() with msleep() and usleep_range() in ↵Jia-Ju Bai
cx23885_gpio_setup() cx23885_gpio_setup() is never called in atomic context. It calls mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep() and usleep_range(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: pci: cx23885: Replace mdelay() with msleep() and usleep_range() in ↵Jia-Ju Bai
altera_ci_slot_reset() altera_ci_slot_reset() is never called in atomic context. It calls mdelay() to busily wait, which is not necessary. mdelay() can be replaced with msleep(). This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: pci: cobalt: Replace GFP_ATOMIC with GFP_KERNEL in cobalt_probe()Jia-Ju Bai
cobalt_probe() is never called in atomic context. It calls kzalloc() with GFP_ATOMIC, which is not necessary. GFP_ATOMIC can be replaced with GFP_KERNEL. This is found by a static analysis tool named DCNS written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: dvb-bt8xx: remove duplicate codeGustavo A. R. Silva
The same code is executed regardless of whether c->frequency < 600000000 or c->frequency < 730000000 is true. This code was detected with the help of Coccinelle. Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-27media: netup_unidvb: don't check number of messages in the driverWolfram Sang
Since commit 1eace8344c02 ("i2c: add param sanity check to i2c_transfer()"), the I2C core does this check now. We can remove it from drivers. Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-25media: tw686x: Fix oops on buffer alloc failureKrzysztof Ha?asa
The error path currently calls tw686x_video_free() which requires vc->dev to be initialized, causing a NULL dereference on uninitizalized channels. Fix this by setting the vc->dev fields for all the channels first. Fixes: f8afaa8dbc0d ("[media] tw686x: Introduce an interface to support multiple DMA modes") Signed-off-by: Krzysztof Ha?asa <khalasa@piap.pl> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-04media: ivtv: zero-initialize cx25840 platform dataMaciej S. Szmigiero
We need to zero-initialize cx25840 platform data structure to make sure that its future members do not contain random stack garbage. Signed-off-by: Maciej S. Szmigiero <mail@maciej.szmigiero.name> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-07-04media: sta2x11: Add video_device and vb2_queue locksEzequiel Garcia
Currently, this driver does not serialize its video4linux ioctls, which is a bug, as race conditions might appear. In addition, video_device and vb2_queue locks are now both mandatory. Add them, and implement wait_prepare and wait_finish. To stay on the safe side, this commit uses a single mutex for both locks. Better latency can be obtained by separating these if needed. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-06-28media: cx88: add error handling for snd_ctl_addZhouyang Jia
When snd_ctl_add fails, the lack of error-handling code may cause unexpected results. This patch adds error-handling code after calling snd_ctl_add. Signed-off-by: Zhouyang Jia <jiazhouyang09@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-06-28media: cx18: remove redundant zero check on retvalColin Ian King
The check for a zero retval is redundant as all paths that lead to this point have set retval to an error return value that is non-zero. Remove the redundant check. Detected by CoverityScan, CID#102589 ("Logically dead code") Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-06-28media: bt8xx: bttv: fix spelling mistake: "culpit" -> "culprit"Colin Ian King
Trivial fix to spelling mistake in pr_notice message text Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-06-28media: cx25821: remove cx25821-audio-upstream.c and cx25821-video-upstream.cCorentin Labbe
Those two files are unused since commit 486a7a2813c7 ("[media] cx25821: remove cx25821-audio-upstream.c") and commit b6f21dc3541a ("[media] cx25821: remove video output support") Remove them from tree. Signed-off-by: Corentin Labbe <clabbe@baylibre.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-06-15media: v4l: fix broken video4linux docs locationsMauro Carvalho Chehab
There are several places pointing to old documentation files: Documentation/video4linux/API.html Documentation/video4linux/bttv/ Documentation/video4linux/cx2341x/fw-encoder-api.txt Documentation/video4linux/m5602.txt Documentation/video4linux/v4l2-framework.txt Documentation/video4linux/videobuf Documentation/video4linux/Zoran Make them point to the new location where available, removing otherwise. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15media: dvb: fix location of get_dvb_firmware scriptMauro Carvalho Chehab
This script was moved out of Documentation/dvb, but the links weren't updated. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-15docs: Fix some broken referencesMauro Carvalho Chehab
As we move stuff around, some doc references are broken. Fix some of them via this script: ./scripts/documentation-file-ref-check --fix Manually checked if the produced result is valid, removing a few false-positives. Acked-by: Takashi Iwai <tiwai@suse.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Stephen Boyd <sboyd@kernel.org> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org> Reviewed-by: Coly Li <colyli@suse.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2018-06-12treewide: Use array_size() in vzalloc()Kees Cook
The vzalloc() function has no 2-factor argument form, so multiplication factors need to be wrapped in array_size(). This patch replaces cases of: vzalloc(a * b) with: vzalloc(array_size(a, b)) as well as handling cases of: vzalloc(a * b * c) with: vzalloc(array3_size(a, b, c)) This does, however, attempt to ignore constant size factors like: vzalloc(4 * 1024) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( vzalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | vzalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( vzalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(char) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | vzalloc( - sizeof(u8) * COUNT + COUNT , ...) | vzalloc( - sizeof(__u8) * COUNT + COUNT , ...) | vzalloc( - sizeof(char) * COUNT + COUNT , ...) | vzalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( vzalloc( - sizeof(TYPE) * (COUNT_ID) + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT_ID + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT_CONST + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vzalloc( - sizeof(THING) * (COUNT_ID) + array_size(COUNT_ID, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT_ID + array_size(COUNT_ID, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT_CONST + array_size(COUNT_CONST, sizeof(THING)) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ vzalloc( - SIZE * COUNT + array_size(COUNT, SIZE) , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( vzalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vzalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vzalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( vzalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vzalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vzalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | vzalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( vzalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vzalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( vzalloc(C1 * C2 * C3, ...) | vzalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants. @@ expression E1, E2; constant C1, C2; @@ ( vzalloc(C1 * C2, ...) | vzalloc( - E1 * E2 + array_size(E1, E2) , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12treewide: Use array_size() in vmalloc()Kees Cook
The vmalloc() function has no 2-factor argument form, so multiplication factors need to be wrapped in array_size(). This patch replaces cases of: vmalloc(a * b) with: vmalloc(array_size(a, b)) as well as handling cases of: vmalloc(a * b * c) with: vmalloc(array3_size(a, b, c)) This does, however, attempt to ignore constant size factors like: vmalloc(4 * 1024) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( vmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | vmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( vmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | vmalloc( - sizeof(u8) * COUNT + COUNT , ...) | vmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | vmalloc( - sizeof(char) * COUNT + COUNT , ...) | vmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( vmalloc( - sizeof(TYPE) * (COUNT_ID) + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT_ID + array_size(COUNT_ID, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT_CONST + array_size(COUNT_CONST, sizeof(TYPE)) , ...) | vmalloc( - sizeof(THING) * (COUNT_ID) + array_size(COUNT_ID, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT_ID + array_size(COUNT_ID, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * (COUNT_CONST) + array_size(COUNT_CONST, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT_CONST + array_size(COUNT_CONST, sizeof(THING)) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ vmalloc( - SIZE * COUNT + array_size(COUNT, SIZE) , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( vmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | vmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | vmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( vmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | vmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | vmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | vmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( vmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | vmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( vmalloc(C1 * C2 * C3, ...) | vmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants. @@ expression E1, E2; constant C1, C2; @@ ( vmalloc(C1 * C2, ...) | vmalloc( - E1 * E2 + array_size(E1, E2) , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-12treewide: kmalloc() -> kmalloc_array()Kees Cook
The kmalloc() function has a 2-factor argument form, kmalloc_array(). This patch replaces cases of: kmalloc(a * b, gfp) with: kmalloc_array(a * b, gfp) as well as handling cases of: kmalloc(a * b * c, gfp) with: kmalloc(array3_size(a, b, c), gfp) as it's slightly less ugly than: kmalloc_array(array_size(a, b), c, gfp) This does, however, attempt to ignore constant size factors like: kmalloc(4 * 1024, gfp) though any constants defined via macros get caught up in the conversion. Any factors with a sizeof() of "unsigned char", "char", and "u8" were dropped, since they're redundant. The tools/ directory was manually excluded, since it has its own implementation of kmalloc(). The Coccinelle script used for this was: // Fix redundant parens around sizeof(). @@ type TYPE; expression THING, E; @@ ( kmalloc( - (sizeof(TYPE)) * E + sizeof(TYPE) * E , ...) | kmalloc( - (sizeof(THING)) * E + sizeof(THING) * E , ...) ) // Drop single-byte sizes and redundant parens. @@ expression COUNT; typedef u8; typedef __u8; @@ ( kmalloc( - sizeof(u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(__u8) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(unsigned char) * (COUNT) + COUNT , ...) | kmalloc( - sizeof(u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(__u8) * COUNT + COUNT , ...) | kmalloc( - sizeof(char) * COUNT + COUNT , ...) | kmalloc( - sizeof(unsigned char) * COUNT + COUNT , ...) ) // 2-factor product with sizeof(type/expression) and identifier or constant. @@ type TYPE; expression THING; identifier COUNT_ID; constant COUNT_CONST; @@ ( - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_ID) + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_ID + COUNT_ID, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (COUNT_CONST) + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * COUNT_CONST + COUNT_CONST, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_ID) + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_ID + COUNT_ID, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (COUNT_CONST) + COUNT_CONST, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * COUNT_CONST + COUNT_CONST, sizeof(THING) , ...) ) // 2-factor product, only identifiers. @@ identifier SIZE, COUNT; @@ - kmalloc + kmalloc_array ( - SIZE * COUNT + COUNT, SIZE , ...) // 3-factor product with 1 sizeof(type) or sizeof(expression), with // redundant parens removed. @@ expression THING; identifier STRIDE, COUNT; type TYPE; @@ ( kmalloc( - sizeof(TYPE) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(TYPE) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(TYPE)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * (COUNT) * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * (STRIDE) + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) | kmalloc( - sizeof(THING) * COUNT * STRIDE + array3_size(COUNT, STRIDE, sizeof(THING)) , ...) ) // 3-factor product with 2 sizeof(variable), with redundant parens removed. @@ expression THING1, THING2; identifier COUNT; type TYPE1, TYPE2; @@ ( kmalloc( - sizeof(TYPE1) * sizeof(TYPE2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(TYPE2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(THING1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(THING1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * COUNT + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) | kmalloc( - sizeof(TYPE1) * sizeof(THING2) * (COUNT) + array3_size(COUNT, sizeof(TYPE1), sizeof(THING2)) , ...) ) // 3-factor product, only identifiers, with redundant parens removed. @@ identifier STRIDE, SIZE, COUNT; @@ ( kmalloc( - (COUNT) * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * STRIDE * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - (COUNT) * (STRIDE) * (SIZE) + array3_size(COUNT, STRIDE, SIZE) , ...) | kmalloc( - COUNT * STRIDE * SIZE + array3_size(COUNT, STRIDE, SIZE) , ...) ) // Any remaining multi-factor products, first at least 3-factor products, // when they're not all constants... @@ expression E1, E2, E3; constant C1, C2, C3; @@ ( kmalloc(C1 * C2 * C3, ...) | kmalloc( - (E1) * E2 * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * E3 + array3_size(E1, E2, E3) , ...) | kmalloc( - (E1) * (E2) * (E3) + array3_size(E1, E2, E3) , ...) | kmalloc( - E1 * E2 * E3 + array3_size(E1, E2, E3) , ...) ) // And then all remaining 2 factors products when they're not all constants, // keeping sizeof() as the second factor argument. @@ expression THING, E1, E2; type TYPE; constant C1, C2, C3; @@ ( kmalloc(sizeof(THING) * C2, ...) | kmalloc(sizeof(TYPE) * C2, ...) | kmalloc(C1 * C2 * C3, ...) | kmalloc(C1 * C2, ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * (E2) + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(TYPE) * E2 + E2, sizeof(TYPE) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * (E2) + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - sizeof(THING) * E2 + E2, sizeof(THING) , ...) | - kmalloc + kmalloc_array ( - (E1) * E2 + E1, E2 , ...) | - kmalloc + kmalloc_array ( - (E1) * (E2) + E1, E2 , ...) | - kmalloc + kmalloc_array ( - E1 * E2 + E1, E2 , ...) ) Signed-off-by: Kees Cook <keescook@chromium.org>
2018-06-07Merge tag 'media/v4.18-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - remove of atomisp driver from staging, as nobody would have time to dedicate huge efforts to fix all the problems there. Also, we have a feeling that the driver may not even run the way it is. - move Zoran driver to staging, in order to be either fixed to use VB2 and the proper media kAPIs or to be removed - remove videobuf-dvb driver, with is unused for a while - some V4L2 documentation fixes/improvements - new sensor drivers: imx258 and ov7251 - a new driver was added to allow using I2C transparent drivers - several improvements at the ddbridge driver - several improvements at the ISDB pt1 driver, making it more coherent with the DVB framework - added a new platform driver for MIPI CSI-2 RX: cadence - now, all media drivers can be compiled on x86 with COMPILE_TEST - almost all media drivers now build on non-x86 architectures with COMPILE_TEST - lots of other random stuff: cleanups, support for new board models, bug fixes, etc * tag 'media/v4.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (464 commits) media: omap2: fix compile-testing with FB_OMAP2=m media: media/radio/Kconfig: add back RADIO_ISA media: v4l2-ioctl.c: fix missing unlock in __video_do_ioctl() media: pxa_camera: ignore -ENOIOCTLCMD from v4l2_subdev_call for s_power media: arch: sh: migor: Fix TW9910 PDN gpio media: staging: tegra-vde: Reset VDE regardless of memory client resetting failure media: marvel-ccic: mmp: select VIDEOBUF2_VMALLOC/DMA_CONTIG media: marvel-ccic: allow ccic and mmp drivers to coexist media: uvcvideo: Prevent setting unavailable flags media: ddbridge: conditionally enable fast TS for stv0910-equipped bridges media: dvb-frontends/stv0910: make TS speed configurable media: ddbridge/mci: add identifiers to function definition arguments media: ddbridge/mci: protect against out-of-bounds array access in stop() media: rc: ensure input/lirc device can be opened after register media: rc: nuvoton: Keep device enabled during reg init media: rc: nuvoton: Keep track of users on CIR enable/disable media: rc: nuvoton: Tweak the interrupt enabling dance media: uvcvideo: Support realtek's UVC 1.5 device media: uvcvideo: Fix driver reference counting media: gspca_zc3xx: Enable short exposure times for OV7648 ...
2018-05-28media: ddbridge: conditionally enable fast TS for stv0910-equipped bridgesDaniel Scheller
CineS2 V7(A) and Octopus CI S2 Pro/Advanced cards support faster TS speeds on the card's contained stv0910 demodulator when their FPGA was updated with a recent (>= 1.7, version number applies to all mentioned cards) vendor firmware. Enable this faster TS speed on card port 0 (contained demod) and parallel stv0910 connections when the card firmware is at least 1.7 or later. Note: The mentioned cards and their demods are handled via the STV0910_PR and STV0910_P tuner types. DuoFlex modules with such demodulators are handled via the STV0910 (without suffix) types where such TS speed increase doesn't technically make sense. Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Tested-by: Richard Scobie <rascobie@slingshot.co.nz> Tested-by: Helmut Auer <post@helmutauer.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-28media: dvb-frontends/stv0910: make TS speed configurableDaniel Scheller
Add a tsspeed config option to struct stv0910_cfg which can be used by users of the driver to set the (parallel) TS speed (higher speeds enable support for higher bitrate transponders). If tsspeed isn't set in the config, it'll default to a sane value. This commit also updates the two consumers of the stv0910 driver (ngene and ddbridge) to have a default tsspeed in their stv0910_cfg templates. Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Tested-by: Richard Scobie <rascobie@slingshot.co.nz> Tested-by: Helmut Auer <post@helmutauer.de> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-28media: ddbridge/mci: add identifiers to function definition argumentsDaniel Scheller
Fixes two checkpatch warnings WARNING: function definition argument 'xxx' should also have an identifier name in the ddb_mci_attach() prototype definition. checkpatch keeps complaining on the "int (**fn_set_input)" as it seems to have issues with the ptr-to-ptr, though this probably needs fixing in checkpatch. Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-28media: ddbridge/mci: protect against out-of-bounds array access in stop()Daniel Scheller
In stop(), an (unlikely) out-of-bounds write error can occur when setting the demod_in_use element indexed by state->demod to zero, as state->demod isn't checked for being in the range of the array size of demod_in_use, and state->demod maybe carrying the magic 0xff (demod unused) value. Prevent this by checking state->demod not exceeding the array size before setting the element value. To make the code a bit easier to read, replace the magic value and the number of array elements with defines, and use them at a few more places. Detected by CoverityScan, CID#1468550 ("Out-of-bounds write") Thanks to Colin for reporting the problem and providing an initial patch. Fixes: daeeb1319e6f ("media: ddbridge: initial support for MCI-based MaxSX8 cards") Reported-by: Colin Ian King <colin.king@canonical.com> Cc: Ralph Metzler <rjkm@metzlerbros.de> Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-28media: tw686x: Fix incorrect vb2_mem_ops GFP flagsEzequiel Garcia
When the driver is configured in the "memcpy" dma-mode, it uses vb2_vmalloc_memops, which is backed by a SLAB allocator and so shouldn't be using GFP_DMA32. Fix it. Signed-off-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-28media: Remove depends on HAS_DMA in case of platform dependencyGeert Uytterhoeven
Remove dependencies on HAS_DMA where a Kconfig symbol depends on another symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST". In most cases this other symbol is an architecture or platform specific symbol, or PCI. Generic symbols and drivers without platform dependencies keep their dependencies on HAS_DMA, to prevent compiling subsystems or drivers that cannot work anyway. This simplifies the dependencies, and allows to improve compile-testing. Note: - The various VIDEOBUF*DMA* symbols had to loose their dependencies on HAS_DMA, as they are selected by several individual drivers. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Mark Brown <broonie@kernel.org> Acked-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-25media: zoran: move to staging in preparation for removalHans Verkuil
This driver hasn't been tested in a long, long time. The hardware is ancient and pretty much obsolete. This driver also needs to be converted to newer media frameworks (vb2!) but due to the lack of time and interest that is unlikely to happen. So this driver is a prime candidate for removal. If someone is interested in working on this driver to prevent its removal, then please contact the linux-media mailinglist. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-16proc: introduce proc_create_single{,_data}Christoph Hellwig
Variants of proc_create{,_data} that directly take a seq_file show callback and drastically reduces the boilerplate code in the callers. All trivial callers converted over. Signed-off-by: Christoph Hellwig <hch@lst.de>
2018-05-11media: cx23885: Add some missing register documentationBrad Love
Document what these two register calls are doing. Signed-off-by: Brad Love <brad@nextdimension.cc> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11media: cx23885: Expand registers in dma tsport reg dumpBrad Love
Include some additional useful registers in the output. Signed-off-by: Brad Love <brad@nextdimension.cc> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11media: cx23885: Ryzen DMA related RiSC engine stall fixesBrad Love
This bug affects all of Hauppauge QuadHD boards when used on all Ryzen platforms and some XEON platforms. On these platforms it is possible to error out the RiSC engine and cause it to stall, whereafter the only way to reset the board to a working state is to reboot. This is the fatal condition with current driver: [ 255.663598] cx23885: cx23885[0]: mpeg risc op code error [ 255.663607] cx23885: cx23885[0]: TS1 B - dma channel status dump [ 255.663612] cx23885: cx23885[0]: cmds: init risc lo : 0xffe54000 [ 255.663615] cx23885: cx23885[0]: cmds: init risc hi : 0x00000000 [ 255.663619] cx23885: cx23885[0]: cmds: cdt base : 0x00010870 [ 255.663622] cx23885: cx23885[0]: cmds: cdt size : 0x0000000a [ 255.663625] cx23885: cx23885[0]: cmds: iq base : 0x00010630 [ 255.663629] cx23885: cx23885[0]: cmds: iq size : 0x00000010 [ 255.663632] cx23885: cx23885[0]: cmds: risc pc lo : 0xffe54018 [ 255.663636] cx23885: cx23885[0]: cmds: risc pc hi : 0x00000000 [ 255.663639] cx23885: cx23885[0]: cmds: iq wr ptr : 0x00004192 [ 255.663642] cx23885: cx23885[0]: cmds: iq rd ptr : 0x0000418c [ 255.663645] cx23885: cx23885[0]: cmds: cdt current : 0x00010898 [ 255.663649] cx23885: cx23885[0]: cmds: pci target lo : 0xf85ca340 [ 255.663652] cx23885: cx23885[0]: cmds: pci target hi : 0x00000000 [ 255.663655] cx23885: cx23885[0]: cmds: line / byte : 0x000c0000 [ 255.663659] cx23885: cx23885[0]: risc0: [ 255.663661] 0x1c0002f0 [ write sol eol count=752 ] [ 255.663666] cx23885: cx23885[0]: risc1: [ 255.663667] 0xf85ca050 [ INVALID sol 22 20 19 18 resync 13 count=80 ] [ 255.663674] cx23885: cx23885[0]: risc2: [ 255.663674] 0x00000000 [ INVALID count=0 ] [ 255.663678] cx23885: cx23885[0]: risc3: [ 255.663679] 0x1c0002f0 [ write sol eol count=752 ] [ 255.663684] cx23885: cx23885[0]: (0x00010630) iq 0: [ 255.663685] 0x1c0002f0 [ write sol eol count=752 ] [ 255.663690] cx23885: cx23885[0]: iq 1: 0xf85ca630 [ arg #1 ] [ 255.663693] cx23885: cx23885[0]: iq 2: 0x00000000 [ arg #2 ] [ 255.663696] cx23885: cx23885[0]: (0x0001063c) iq 3: [ 255.663697] 0x1c0002f0 [ write sol eol count=752 ] [ 255.663702] cx23885: cx23885[0]: iq 4: 0xf85ca920 [ arg #1 ] [ 255.663705] cx23885: cx23885[0]: iq 5: 0x00000000 [ arg #2 ] [ 255.663709] cx23885: cx23885[0]: (0x00010648) iq 6: [ 255.663709] 0xf85ca340 [ INVALID sol 22 20 19 18 resync 13 count=832 ] [ 255.663716] cx23885: cx23885[0]: (0x0001064c) iq 7: [ 255.663717] 0x00000000 [ INVALID count=0 ] [ 255.663721] cx23885: cx23885[0]: (0x00010650) iq 8: [ 255.663721] 0x00000000 [ INVALID count=0 ] [ 255.663725] cx23885: cx23885[0]: (0x00010654) iq 9: [ 255.663726] 0x1c0002f0 [ write sol eol count=752 ] [ 255.663731] cx23885: cx23885[0]: iq a: 0xf85c9780 [ arg #1 ] [ 255.663734] cx23885: cx23885[0]: iq b: 0x00000000 [ arg #2 ] [ 255.663737] cx23885: cx23885[0]: (0x00010660) iq c: [ 255.663738] 0x1c0002f0 [ write sol eol count=752 ] [ 255.663743] cx23885: cx23885[0]: iq d: 0xf85c9a70 [ arg #1 ] [ 255.663746] cx23885: cx23885[0]: iq e: 0x00000000 [ arg #2 ] [ 255.663749] cx23885: cx23885[0]: (0x0001066c) iq f: [ 255.663750] 0x1c0002f0 [ write sol eol count=752 ] [ 255.663755] cx23885: cx23885[0]: iq 10: 0xf4fa2920 [ arg #1 ] [ 255.663758] cx23885: cx23885[0]: iq 11: 0x00000000 [ arg #2 ] [ 255.663759] cx23885: cx23885[0]: fifo: 0x00005000 -> 0x6000 [ 255.663760] cx23885: cx23885[0]: ctrl: 0x00010630 -> 0x10690 [ 255.663764] cx23885: cx23885[0]: ptr1_reg: 0x00005980 [ 255.663767] cx23885: cx23885[0]: ptr2_reg: 0x000108a8 [ 255.663770] cx23885: cx23885[0]: cnt1_reg: 0x0000000b [ 255.663773] cx23885: cx23885[0]: cnt2_reg: 0x00000003 Included is checks of the TC_REQ and TC_REQ_SET registers during states of board initialization, reset, DMA start, and DMA stop. If both registers are set, this indicates a stall in the RiSC engine, at which point the bridge error is cleared. A small delay is introduced in stop_dma as well, to allow transfers in progress to finish. After application all models work on Ryzen, occasionally yielding: cx23885_clear_bridge_error: dma in progress detected 0x00000001 0x00000001, clearing Signed-off-by: Brad Love <brad@nextdimension.cc> Signed-off-by: Hans Verkuil <hansverk@cisco.com> [hansverk@cisco.com: fix compiler warning of unused 'reg' variable] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11media: cx23885: Use PCI and TS masks in irq functionsBrad Love
Currently mask is read for pci_status/ts1_status/ts2_status, but otherwise ignored. The masks are now used to determine whether action is warranted. Signed-off-by: Brad Love <brad@nextdimension.cc> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-11media: cx23885: Handle additional bufs on interruptBrad Love
On Ryzen systems interrupts are occasionally missed: cx23885: cx23885_wakeup: [ffff99b384b83c00/28] wakeup reg=5406 buf=5405 cx23885: cx23885_wakeup: [ffff99b40bf79400/31] wakeup reg=9537 buf=9536 This patch loops up to five times on wakeup, marking any buffers found done. Since the count register is u16, but the vb2 counter is u32, some modulo arithmetic is used to accommodate wraparound and ensure current active buffer is the buffer expected. Signed-off-by: Brad Love <brad@nextdimension.cc> Signed-off-by: Hans Verkuil <hansverk@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-10Merge tag 'v4.17-rc4' into patchworkMauro Carvalho Chehab
Linux 4.17-rc4 * tag 'v4.17-rc4': (920 commits) Linux 4.17-rc4 KVM: x86: remove APIC Timer periodic/oneshot spikes genksyms: fix typo in parse.tab.{c,h} generation rules kbuild: replace hardcoded bison in cmd_bison_h with $(YACC) gcc-plugins: fix build condition of SANCOV plugin MAINTAINERS: Update Kbuild entry with a few paths Revert "usb: host: ehci: Use dma_pool_zalloc()" platform/x86: Kconfig: Fix dell-laptop dependency chain. platform/x86: asus-wireless: Fix NULL pointer dereference arm64: vgic-v2: Fix proxying of cpuif access KVM: arm/arm64: vgic_init: Cleanup reference to process_maintenance KVM: arm64: Fix order of vcpu_write_sys_reg() arguments MAINTAINERS & files: Canonize the e-mails I use at files media: imx-media-csi: Fix inconsistent IS_ERR and PTR_ERR tools: power/acpi, revert to LD = gcc bdi: Fix oops in wb_workfn() RDMA/cma: Do not query GID during QP state transition to RTR IB/mlx4: Fix integer overflow when calculating optimal MTT size IB/hfi1: Fix memory leak in exception path in get_irq_affinity() IB/{hfi1, rdmavt}: Fix memory leak in hfi1_alloc_devdata() upon failure ...
2018-05-09media: Revert cleanup ktime_set() usageJasmin Jessich
This reverts 8b0e195314fa, because media-tree drivers should use the API functions to initialize variables of type ktime_t. Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Jasmin Jessich <jasmin@anw.at> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-09media: Use ktime_set() in pt1.cJasmin Jessich
In commit 20a63349b142 a new variable ktime_t delay has been added. We decided to use the API functions to initialize ktime_t variables within media-tree. Thus variable delay needs to be initialized with ktime_set() instead of setting it directly. Signed-off-by: Jasmin Jessich <jasmin@anw.at> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-09media: saa7164: Fix driver name in debug outputBrad Love
This issue was reported by a user who downloaded a corrupt saa7164 firmware, then went looking for a valid xc5000 firmware to fix the error displayed...but the device in question has no xc5000, thus after much effort, the wild goose chase eventually led to a support call. The xc5000 has nothing to do with saa7164 (as far as I can tell), so replace the string with saa7164 as well as give a meaningful hint on the firmware mismatch. Signed-off-by: Brad Love <brad@nextdimension.cc> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-09media: intel-ipu3: Kconfig coding style issueBrad Love
Kconfig Help statements are two-spaced after a single tab. The incorrect spacing breaks menuconfig on older kernels. Signed-off-by: Brad Love <brad@nextdimension.cc> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-09media: sta2x11: Use gpio_is_valid() and remove unnecessary checkArvind Yadav
Replace the manual validity checks for the GPIO with the gpio_is_valid(). In vip_gpio_reserve(), Error checking for gpio pin is not correct. If pwr_pin = -1, It will return 0. This should be return an error. In sta2x11_vip_init_one(), Error checking for gpio 'reset_pin' is unnecessary. Because vip_gpio_reserve() is also checking for valid gpio pin. So removed extra error checking for gpio 'reset_pin'. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-09media: intel-ipu3: cio2: Handle IRQs until INT_STS is clearedBingbu Cao
Interrupt behavior shows that some time the frame end and frame start of next frame is unstable and can range from several to hundreds of micro-sec. In the case of ~10us, isr may not clear next sof interrupt status in single handling, which prevents new interrupts from coming. Fix this by handling all pending IRQs before exiting isr, so any abnormal behavior results from very short interrupt status changes is protected. Signed-off-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Andy Yeh <andy.yeh@intel.com> Signed-off-by: Yong Zhi <yong.zhi@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-05media: meye: allow building it with COMPILE_TEST on non-x86Mauro Carvalho Chehab
This driver depends on sony-laptop driver, but this is available only for x86. So, add a stub function, in order to allow building it on non-x86 too. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-05media: cx88: Get rid of spurious call to cx8800_start_vbi_dma()Devin Heitmueller
This was left over from the conversion to VB2, where the call was getting invoked both in buffer_queue and start_streaming, which was intermittently causing invalid opcodes on the VBI RISC queue. This change effectively mirrors the exact same change Hans Verkuil made in cx88-video.c in commit 389208e1173e ("[media] cx88: remove leftover start_video_dma() call"). Thanks to Daniel Glöckner for spotting the actual bug after I spent several days trying to chase down the issue. Fixes: 389208e1173e ("[media] cx88: remove leftover start_video_dma() call") Signed-off-by: Devin Heitmueller <dheitmueller@kernellabs.com> Thanks-to: Daniel Glöckner <daniel-gl@gmx.net> Cc: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-05media: frontends: fix ops get_algo()'s return typeLuc Van Oostenryck
The method dvb_frontend_ops::get_frontend_algo() is defined as returning an 'enum dvbfe_algo', but the implementation in this driver returns an 'int'. Fix this by returning 'enum dvbfe_algo' on drivers. [mchehab+samsung@kernel.org: merge similar patches and patch ddbridge-mci.c the same way] Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-05-05media: ngene: fix ci_tsfix modparam description typoDaniel Scheller
s/shifs/shifts/ Signed-off-by: Daniel Scheller <d.scheller@gmx.net> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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