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path: root/drivers/media/dvb-core/dvb_demux.c
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2017-10-11media: dvb_demux.h: document structs defined on itMauro Carvalho Chehab
There are three structs defined inside dvb_demux.h. None of them are currently documented. Add documentation for them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-11media: dvb_demux: dvb_demux_feed.pusi_seen is booleanMauro Carvalho Chehab
Instead of using an integer to represent it, use boolean, as this better describes what this field really means. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-10-11media: dvb_demux: mark a boolean field as suchMauro Carvalho Chehab
The struct dvb_demux_filter.doneq is a boolean. Mark it as such, as it helps to understand what it does. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-03-02sched/headers: Prepare to move signal wakeup & sigpending methods from ↵Ingo Molnar
<linux/sched.h> into <linux/sched/signal.h> Fix up affected files that include this signal functionality via sched.h. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-01-27[media] media: Drop FSF's postal address from the source code filesSakari Ailus
Drop the FSF's postal address from the source code files that typically contain mostly the license text. Of the 628 removed instances, 578 are outdated. The patch has been created with the following command without manual edits: git grep -l "675 Mass Ave\|59 Temple Place\|51 Franklin St" -- \ drivers/media/ include/media|while read i; do i=$i perl -e ' open(F,"< $ENV{i}"); $a=join("", <F>); $a =~ s/[ \t]*\*\n.*You should.*\n.*along with.*\n.*(\n.*USA.*$)?\n//m && $a =~ s/(^.*)Or, (point your browser to) /$1To obtain the license, $2\n$1/m; close(F); open(F, "> $ENV{i}"); print F $a; close(F);'; done Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2016-12-24Replace <asm/uaccess.h> with <linux/uaccess.h> globallyLinus Torvalds
This was entirely automated, using the script by Al: PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*<asm/uaccess.h>' sed -i -e "s!$PATT!#include <linux/uaccess.h>!" \ $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h) to do the replacement at the end of the merge window. Requested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-21[media] dvb-core: get rid of demux optional circular bufferMauro Carvalho Chehab
There is a provision at the dvb_demux.c to use a vmalloc'ed circular buffer, enabled via an extra #ifdef option that it is not at Kconfig. Enabling it will only make the Kernel to allocate/deallocate such buffer, but no code would actually use it. So, no practical effect, except for sparing some memory without any good reason. So, get rid of such dead code. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21[media] dvb_demux: uncomment a packet loss check codeMauro Carvalho Chehab
There is a commented code that also detects packet loss. Uncomment it and put into the DVB_DEMUX_SECTION_LOSS_LOG debug Kconfig option. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21[media] dvb_demux: convert an internal ifdef into a Kconfig optionMauro Carvalho Chehab
There are some ifdefs inside the dvb_demux that are meant to enable advanced debug capabilities, at the cost of being very verbose. Keeping those as internal ifdefs is a very bad idea, as it doesn't make easy to check if the code there was broken by some patch. So, let's add an explicit Kconfig option for it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21[media] dvb-core: use pr_foo() instead of printk()Mauro Carvalho Chehab
The dvb-core directly calls printk() without using the modern printk macros, or using the proper printk levels. Change it to use pr_foo(). Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21[media] dvb-core: don't break long linesMauro Carvalho Chehab
Due to the 80-cols checkpatch warnings, several strings were broken into multiple lines. This is not considered a good practice anymore, as it makes harder to grep for strings at the source code. So, join those continuation lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08[media] dvb: use ktime_t for internal timeoutArnd Bergmann
The dvb demuxer code uses a 'struct timespec' to pass a timeout as absolute time. This will cause problems on 32-bit architectures in 2038 when time_t overflows, and it is racy with a concurrent settimeofday() call. This patch changes the code to use ktime_get() instead, using the monotonic time base to avoid both the race and the overflow. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2015-10-06[media] dvb: get rid of enum dmx_successMauro Carvalho Chehab
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>
2013-12-09[media] media_tree: Fix spelling errorsJonathan McCrohan
Fix various spelling errors in strings and comments throughout the media tree. The majority of these were found using Lucas De Marchi's codespell tool. [m.chehab@samsung.com: discard hunks with conflicts] Signed-off-by: Jonathan McCrohan <jmccrohan@gmail.com> Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-29[media] dvb_demux: clean up whitespace in comments from previous patch (trivial)Michael Krufky
removes trailing whitespace and rebalance line length in comment block Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-11-29[media] dvb_demux: fix deadlock in dmx_section_feed_release_filter()Alexey Khoroshilov
dmx_section_feed_release_filter() locks dvbdmx->mutex and if the feed is still filtering, it calls feed->stop_filtering(feed). stop_filtering() is implemented by dmx_section_feed_stop_filtering() that first of all try to lock the same mutex: dvbdmx->mutex. That leads to a deadlock. It does not happen often in practice because all callers of release_filter() stop filtering by themselves. So the problem can happen in case of race condition only. The patch releases dvbdmx->mutex before call to feed->stop_filtering(feed) and reacquires the mutex after that. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Michael Krufky <mkrufky@linuxtv.org> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-10-02[media] media: dvb-core: prepare for enabling irq in complete()Ming Lei
Complete() will be run with interrupt enabled, so change to spin_lock_irqsave(). These functions may be called inside URB->complete(), so use spin_lock_irqsave(). Signed-off-by: Ming Lei <ming.lei@canonical.com> Acked-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2013-04-08[media] demux.h: Remove duplicated enumMauro Carvalho Chehab
"enum dmx_ts_pes" and "typedef enum dmx_pes_type_t" are just the same enum declared twice, since Kernel (2.6.12). There's no reason to duplicate it there, and sparse complains about that: drivers/media/dvb-core/dmxdev.c:600:55: warning: mixing different enum types So, remove the internal define, keeping just the external one. Internally, use only "enum dmx_ts_pes", as it is too late to drop dmx_pes_type_t from the userspace API. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2013-03-19[media] dvb_demux: Transport stream continuity check fixJohn Smith
This patch avoids incrementing continuity counter demux->cnt_storage[pid] for TS packets without payload in accordance with ISO /IEC 13818-1. [mchehab@redhat.com: unmangle whitespacing and fix CodingStyle. Also checked ISO/IEC spec: patch is according with it] Reviewed-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: John Smith <johns90812@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-09-23[media] drivers/media/dvb-core/dvb_demux.c: removes unnecessary semicolonPeter Senna Tschudin
removes unnecessary semicolon Found by Coccinelle: http://coccinelle.lip6.fr/ Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-08-13[media] dvb: move the dvb core one level upMauro Carvalho Chehab
just like the V4L2 core, move the DVB core to drivers/media, as the intention is to get rid of both "video" and "dvb" directories. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>