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* media: dvb-frontends: add missing MODULE_DESCRIPTION() macrosJeff Johnson2024-06-291-0/+1
| | | | | | | | | | | With ARCH=x86, make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/dvb-frontends/au8522_decoder.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/media/dvb-frontends/mb86a16.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
* media: dvb: symbol fixup for dvb_attach()Greg Kroah-Hartman2023-09-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | In commit 9011e49d54dc ("modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules") the use of symbol_get is properly restricted to GPL-only marked symbols. This interacts oddly with the DVB logic which only uses dvb_attach() to load the dvb driver which then uses symbol_get(). Fix this up by properly marking all of the dvb_attach attach symbols as EXPORT_SYMBOL_GPL(). Fixes: 9011e49d54dc ("modules: only allow symbol_get of EXPORT_SYMBOL_GPL modules") Cc: stable <stable@kernel.org> Reported-by: Stefan Lippers-Hollmann <s.l-h@gmx.de> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: Christoph Hellwig <hch@lst.de> Cc: linux-media@vger.kernel.org Cc: linux-modules@vger.kernel.org Acked-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Link: https://lore.kernel.org/r/20230908092035.3815268-2-gregkh@linuxfoundation.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* media: dvb: mb86a16: check the return value of mb86a16_read()Yuanjun Gong2023-08-101-4/+6
| | | | | | | | | return an error code if mb86a16_read() gets an unexpected return value. Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil: add {} around the else statement]
* media: dvb-frontends: mb86a16.c: always use the same error pathHans Verkuil2023-02-081-3/+6
| | | | | | | | | | If the message length was wrong, the dprintk() after the 'err' label was bypassed. Fix that, and fix a smatch warning at the same time: mb86a16.c:1514 mb86a16_send_diseqc_msg() warn: missing unwind goto? Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
* media: dvb-frontends: mb86a16.c: remove useless if/elseDaniel W. S. Almeida2020-08-291-5/+2
| | | | | | | | | | | | | | | Fix the following coccinelle report: drivers/media/dvb-frontends/mb86a16.c:1455:6-8: WARNING: possible condition with no effect (if == else) Both branches are the same, so remove the if/else altogether. Found using - Coccinelle (http://coccinelle.lip6.fr) Signed-off-by: Daniel W. S. Almeida <dwlsalmeida@gmail.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61Thomas Gleixner2019-05-241-13/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 675 mass ave cambridge ma 02139 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 441 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071858.739733335@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* media: dvb: represent min/max/step/tolerance freqs in HzMauro Carvalho Chehab2018-08-031-4/+3
| | | | | | | | | | | | | | | | Right now, satellite frontend drivers specify frequencies in kHz, while terrestrial/cable ones specify in Hz. That's confusing for developers. However, the main problem is that universal frontends capable of handling both satellite and non-satelite delivery systems are appearing. We end by needing to hack the drivers in order to support such hybrid frontends. So, convert everything to specify frontend frequencies in Hz. Tested-by: Katsuhiro Suzuki <suzuki.katsuhiro@socionext.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
* media: ABS macro parameter parenthesizationDan Gopstein2018-03-061-5/+3
| | | | | | | | | | | | | | | | | Replace usages of the locally defined ABS() macro with calls to the canonical abs() from kernel.h and remove the old definitions of ABS() This change was originally motivated by two local definitions of the ABS (absolute value) macro that fail to parenthesize their parameter properly. This can lead to a bad expansion for low-precedence expression arguments. For example: ABS(1-2) currently expands to ((1-2) < 0 ? (-1-2) : (1-2)) which evaluates to -3. But the correct expansion would be ((1-2) < 0 ? -(1-2) : (1-2)) which evaluates to 1. Signed-off-by: Dan Gopstein <dgopstein@nyu.edu> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* media: move dvb kAPI headers to include/mediaMauro Carvalho Chehab2017-12-281-1/+1
| | | | | | | | Except for DVB, all media kAPI headers are at include/media. Move the headers to it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* media: mb86a16: avoid division by zeroMauro Carvalho Chehab2017-12-111-6/+6
| | | | | | | | | | | | | | | | | | | As warned by smatch: drivers/media/dvb-frontends/mb86a16.c:1690 mb86a16_read_ber() error: uninitialized symbol 'timer'. drivers/media/dvb-frontends/mb86a16.c:1706 mb86a16_read_ber() error: uninitialized symbol 'timer'. There is a potential risk of doing a division by zero if timer is not handled well. Enforce it by setting a bit mask for the values used to select the timer. It should be noticed that I don't have mb86a16 datasheet. So, the bitmask was guessed based on the existing checks for the field. At worse case scenario, it will just show a badly calculated bit error rate, but it won't crash. While here, optimize the logic to prevent uneeded tests. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* media: mb86a16: be more resilient if I2C fails on syncMauro Carvalho Chehab2017-12-111-0/+1
| | | | | | | | | | | | | If the I2C read fails while check for sync, there's no point on doing adjusting the tuner due to a random value that might be at VIRM var. So, set VIRM to zero, as that makes the caller for check_sync() to return an error. Fix those smatch warnings: drivers/media/dvb-frontends/mb86a16.c:1460 mb86a16_set_fe() error: uninitialized symbol 'VIRM'. drivers/media/dvb-frontends/mb86a16.c:1461 mb86a16_set_fe() error: uninitialized symbol 'VIRM'. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* media: dvb-frontends: mb86a16: remove useless variables in signal_det()Gustavo A. R. Silva2017-07-201-18/+7
| | | | | | | | | | | Remove useless variables wait_t and wait_sym and code related. Also, fix some coding style issues. Addresses-Coverity-ID: 1226947 Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] dvb: make DVB frontend *_ops instances "const"Max Kellermann2016-11-181-1/+1
| | | | | | | | | | | | | These are immutable. Making them "const" allows the compiler to move them to the "rodata" section. Note that cxd2841er_t_c_ops cannot be made "const", because cxd2841er_attach() modifies it. Ouch! [mchehab@s-opensource.com: fix merge conflicts] Signed-off-by: Max Kellermann <max.kellermann@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
* [media] dvb: Get rid of typedev usage for enumsMauro Carvalho Chehab2015-06-091-3/+4
| | | | | | | | | | | | | | | | | The DVB API was originally defined using typedefs. This is against Kernel CodingStyle, and there's no good usage here. While we can't remove its usage on userspace, we can avoid its usage in Kernelspace. So, let's do it. This patch was generated by this shell script: for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done While here, make CodingStyle fixes on the affected lines. Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
* [media] dvb: return the error from i2c_transfer if negativeHans Wennborg2014-09-221-0/+2
| | | | | | | | | Just returns whatever error that was returned by the i2c core, in the case of errors, only returning -EREMOTEIO if the transfer size is not what it was expected. Signed-off-by: Hans Wennborg <hans@hanshq.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] dvb: remove 0x prefix from decimal value in printfHans Wennborg2014-09-221-1/+1
| | | | | | | | The returned code is 0, 1 or an error. It doesn't make sense to print it in hexadecimal. Signed-off-by: Hans Wennborg <hans@hanshq.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
* [media] mb86a16/mb86a20s: fix sparse warningsHans Verkuil2014-09-031-1/+1
| | | | | | | | | drivers/media/dvb-frontends/mb86a16.c:31:14: warning: symbol 'verbose' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:36:4: warning: symbol 'mb86a20s_subchannel' was not declared. Should it be static? drivers/media/dvb-frontends/mb86a20s.c:1333:24: warning: symbol 'cnr_qpsk_table' was not declared. Should it be static? Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
* [media] move the dvb/frontends to drivers/media/dvb-frontendsMauro Carvalho Chehab2012-08-141-0/+1878
Raise the DVB frontends one level up, as the intention is to remove the drivers/media/dvb directory. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>