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2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 113Thomas Gleixner
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 to obtain the license point your browser to http www gnu org copyleft gpl html extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 26 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091650.572604764@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 61Thomas Gleixner
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>
2019-05-24treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 34Thomas Gleixner
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 59 temple place suite 330 boston ma 02111 1307 usa or point your browser to http www gnu org copyleft gpl html extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 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/20190520170857.367248213@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21treewide: Add SPDX license identifier for more missed filesThomas Gleixner
Add SPDX license identifiers to all files which: - Have no license information of any form - Have MODULE_LICENCE("GPL*") inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-18media: prefix header search paths with $(srctree)/Masahiro Yamada
Currently, the Kbuild core manipulates header search paths in a crazy way [1]. To fix this mess, I want all Makefiles to add explicit $(srctree)/ to the search paths in the srctree. Some Makefiles are already written in that way, but not all. The goal of this work is to make the notation consistent, and finally get rid of the gross hacks. Having whitespaces after -I does not matter since commit 48f6e3cf5bc6 ("kbuild: do not drop -I without parameter"). [1]: https://patchwork.kernel.org/patch/9632347/ Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2019-05-18media: remove unneeded header search pathsMasahiro Yamada
I was able to build without these extra header search paths. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2019-05-08Merge tag 'media/v5.1-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - remove the deprecated Zoran driver from staging - new I2C driver: ST MIPID02 CSI-2 camera bridge - new platform driver: Amlogic Meson AO CEC G12A Controller - add support for USB audio via the media controller - au0828 driver is now supported via the media controller on both on media and on usbaudio - new kernel test for the media device allocator - add support for stateless decoder at vicodec driver - lots of other driver improvements fixes and cleanups * tag 'media/v5.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (218 commits) media: dt-bindings: aspeed-video: Add missing memory-region property media: platform: Aspeed: Make reserved memory optional media: platform: Aspeed: Remove use of reset line media: stm32-dcmi: return appropriate error codes during probe media: vsp1: Add support for missing 16-bit RGB555 formats media: vsp1: Add support for missing 16-bit RGB444 formats media: vsp1: Add support for missing 32-bit RGB formats media: v4l: Add definitions for missing 16-bit RGB555 formats media: v4l: Add definitions for missing 16-bit RGB4444 formats media: v4l: Add definitions for missing 32-bit RGB formats media: zoran: remove deprecated driver media: MAINTAINERS: Update AO CEC with ao-cec-g12a driver media: platform: meson: Add Amlogic Meson G12A AO CEC Controller driver media: dt-bindings: media: meson-ao-cec: Add G12A AO-CEC-B Compatible media: cros-ec-cec: decrement HDMI device refcount media: seco-cec: decrement HDMI device refcount media: tegra_cec: use new cec_notifier_parse_hdmi_phandle helper media: stih_cec: use new cec_notifier_parse_hdmi_phandle helper media: s5p_cec: use new cec_notifier_parse_hdmi_phandle helper media: meson: ao-cec: use new cec_notifier_parse_hdmi_phandle helper ...
2019-04-08drivers: Remove explicit invocations of mmiowb()Will Deacon
mmiowb() is now implied by spin_unlock() on architectures that require it, so there is no reason to call it from driver code. This patch was generated using coccinelle: @mmiowb@ @@ - mmiowb(); and invoked as: $ for d in drivers include/linux/qed sound; do \ spatch --include-headers --sp-file mmiowb.cocci --dir $d --in-place; done NOTE: mmiowb() has only ever guaranteed ordering in conjunction with spin_unlock(). However, pairing each mmiowb() removal in this patch with the corresponding call to spin_unlock() is not at all trivial, so there is a small chance that this change may regress any drivers incorrectly relying on mmiowb() to order MMIO writes between CPUs using lock-free synchronisation. If you've ended up bisecting to this commit, you can reintroduce the mmiowb() calls using wmb() instead, which should restore the old behaviour on all architectures other than some esoteric ia64 systems. Acked-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
2019-03-29media: bt8xx: avoid a needless u8 to char conversionMauro Carvalho Chehab
Instead of doing the cast, just change the type to char. Suggested-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-29media: replace strncpy() by strscpy()Mauro Carvalho Chehab
The strncpy() function is being deprecated upstream. Replace it by the safer strscpy(). While here, replace a few occurences of strlcpy() that were recently added to also use strscpy(). Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-29media: tw5864: Fix possible NULL pointer dereference in tw5864_handle_frameYueHaibing
'vb' null check should be done before dereferencing it in tw5864_handle_frame, otherwise a NULL pointer dereference may occur. Fixes: 34d1324edd31 ("[media] pci: Add tw5864 driver") Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: Kconfig files: use the right help coding styleMauro Carvalho Chehab
Checkpatch wants to use 'help' instead of '---help---': WARNING: prefer 'help' over '---help---' for new help texts Let's change it globally at the media subsystem, as otherwise people would keep using the old way. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-20media: ipu3-cio2: Set CSI-2 receiver sub-device entity functionSakari Ailus
Set the entity function for the four CSI-2 receiver sub-devices the driver creates. This avoids a kernel warning from each as well. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Reviewed-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: cx23885: check allocation returnNicholas Mc Guire
Checking of kmalloc() seems to have been committed - as cx23885_dvb_register() is checking for != 0 return, returning -ENOMEM should be fine here. While at it address the coccicheck suggestion to move to kmemdup rather than using kmalloc+memcpy. Fixes: 46b21bbaa8a8 ("[media] Add support for DViCO FusionHDTV DVB-T Dual Express2") Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: cx18: update *pos correctly in cx18_read_pos()Dan Carpenter
We should be updating *pos. The current code is a no-op. Fixes: 1c1e45d17b66 ("V4L/DVB (7786): cx18: new driver for the Conexant CX23418 MPEG encoder chip") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: ivtv: update *pos correctly in ivtv_read_pos()Dan Carpenter
We had intended to update *pos, but the current code is a no-op. Fixes: 1a0adaf37c30 ("V4L/DVB (5345): ivtv driver for Conexant cx23416/cx23415 MPEG encoder/decoder") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: saa7146: avoid high stack usage with clangArnd Bergmann
Two saa7146/hexium files contain a construct that causes a warning when built with clang: drivers/media/pci/saa7146/hexium_orion.c:210:12: error: stack frame size of 2272 bytes in function 'hexium_probe' [-Werror,-Wframe-larger-than=] static int hexium_probe(struct saa7146_dev *dev) ^ drivers/media/pci/saa7146/hexium_gemini.c:257:12: error: stack frame size of 2304 bytes in function 'hexium_attach' [-Werror,-Wframe-larger-than=] static int hexium_attach(struct saa7146_dev *dev, struct saa7146_pci_extension_data *info) ^ This one happens regardless of KASAN, and the problem is that a constructor to initialize a dynamically allocated structure leads to a copy of that structure on the stack, whereas gcc initializes it in place. Link: https://bugs.llvm.org/show_bug.cgi?id=40776 Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: fix checkpatch warnings] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-19media: cobalt: replace VB2_BUF_STATE_REQUEUEING by _ERRORHans Verkuil
The cobalt driver is the only driver that uses VB2_BUF_STATE_REQUEUEING. Replace it by VB2_BUF_STATE_ERROR so we can drop support for the REQUEUEING state. The requeueing state was used in the cobalt driver to optimize buffer handling while waiting for a valid signal: by requeueing buffers internally there was no need for userspace to handle and requeue buffers with the ERROR flag set. However, requeueing also makes the buffer handling unordered, which is generally a bad idea. Requeueing also does not work with requests and any future fence support. Since it is really a minor optimization in the cobalt driver it is best to just return the buffer in an ERROR state. With this change support for requeueing can now be removed in vb2. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-09Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds
Pull rdma updates from Jason Gunthorpe: "This has been a slightly more active cycle than normal with ongoing core changes and quite a lot of collected driver updates. - Various driver fixes for bnxt_re, cxgb4, hns, mlx5, pvrdma, rxe - A new data transfer mode for HFI1 giving higher performance - Significant functional and bug fix update to the mlx5 On-Demand-Paging MR feature - A chip hang reset recovery system for hns - Change mm->pinned_vm to an atomic64 - Update bnxt_re to support a new 57500 chip - A sane netlink 'rdma link add' method for creating rxe devices and fixing the various unregistration race conditions in rxe's unregister flow - Allow lookup up objects by an ID over netlink - Various reworking of the core to driver interface: - drivers should not assume umem SGLs are in PAGE_SIZE chunks - ucontext is accessed via udata not other means - start to make the core code responsible for object memory allocation - drivers should convert struct device to struct ib_device via a helper - drivers have more tools to avoid use after unregister problems" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (280 commits) net/mlx5: ODP support for XRC transport is not enabled by default in FW IB/hfi1: Close race condition on user context disable and close RDMA/umem: Revert broken 'off by one' fix RDMA/umem: minor bug fix in error handling path RDMA/hns: Use GFP_ATOMIC in hns_roce_v2_modify_qp cxgb4: kfree mhp after the debug print IB/rdmavt: Fix concurrency panics in QP post_send and modify to error IB/rdmavt: Fix loopback send with invalidate ordering IB/iser: Fix dma_nents type definition IB/mlx5: Set correct write permissions for implicit ODP MR bnxt_re: Clean cq for kernel consumers only RDMA/uverbs: Don't do double free of allocated PD RDMA: Handle ucontext allocations by IB/core RDMA/core: Fix a WARN() message bnxt_re: fix the regression due to changes in alloc_pbl IB/mlx4: Increase the timeout for CM cache IB/core: Abort page fault handler silently during owning process exit IB/mlx5: Validate correct PD before prefetch MR IB/mlx5: Protect against prefetch of invalid MR RDMA/uverbs: Store PR pointer before it is overwritten ...
2019-03-09Merge tag 'media/v5.1-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - remove sensor drivers that got converted from soc_camera - remaining soc_camera drivers got moved to staging - some documentation cleanups and improvements - the imx staging driver now supports imx7 - the ov9640, mt9m001 and mt9m111 got converted from soc_camera - the vim2m driver now does what a m2m convert driver expects to do - epoll() fixes on media subsystems - several drivers fixes, typos, cleanups and improvements * tag 'media/v5.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (346 commits) media: dvb/earth-pt1: fix wrong initialization for demod blocks media: vim2m: Address some coding style issues media: vim2m: don't use BUG() media: vim2m: speedup passthrough copy media: vim2m: add an horizontal scaler media: vim2m: don't accept YUYV anymore as output format media: vim2m: add vertical linear scaler media: vim2m: better handle cap/out buffers with different sizes media: vim2m: use different framesizes for bayer formats media: vim2m: add support for VIDIOC_ENUM_FRAMESIZES media: vim2m: ensure that width is multiple of two media: vim2m: improve debug messages media: vim2m: add bayer capture formats media: a few more typos at staging, pci, platform, radio and usb media: Documentation: fix several typos media: staging: fix several typos media: include: fix several typos media: common: fix several typos media: v4l2-core: fix several typos media: usb: fix several typos ...
2019-03-04media: dvb/earth-pt1: fix wrong initialization for demod blocksAkihiro Tsukada
earth-pt1 driver was decomposed/restructured by the commit b732539efdba ("media: dvb: earth-pt1: decompose pt1 driver into sub drivers"), but it introduced a problem regarding concurrent streaming: Opening a new terrestial stream stops the reception of an existing, already-opened satellite stream. The demod IC in earth-pt1 boards contains 2 pairs of terr. and sat. blocks, supporting 4 concurrent demodulations, and the above problem was because the config of a terr. block contained whole reset/init of the pair blocks, thus each open() of a terrestrial frontend wrongly cleared the config of its peer satellite block of the demod. This whole/pair reset should be executed earlier and not on each open(). Fixes: b732539efdba ("media: dvb: earth-pt1: decompose pt1 driver into sub drivers") Signed-off-by: Akihiro Tsukada <tskd08@gmail.com> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-01media: a few more typos at staging, pci, platform, radio and usbMauro Carvalho Chehab
Those typos were left over from codespell check, on my first pass or belong to code added after the time I ran it. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-03-01media: pci: fix several typosMauro Carvalho Chehab
Use codespell to fix lots of typos over frontends. Manually verified to avoid false-positives. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-02-18media: smipcie: add universal ir capabilityPatrick Lerda
smipcie: switch to RC_DRIVER_IR_RAW. Signed-off-by: Patrick Lerda <patrick9876@free.fr> Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-02-18Merge tag 'v5.0-rc7' into patchworkMauro Carvalho Chehab
Linux 5.0-rc7 * tag 'v5.0-rc7': (1667 commits) Linux 5.0-rc7 Input: elan_i2c - add ACPI ID for touchpad in Lenovo V330-15ISK Input: st-keyscan - fix potential zalloc NULL dereference Input: apanel - switch to using brightness_set_blocking() powerpc/64s: Fix possible corruption on big endian due to pgd/pud_present() efi/arm: Revert "Defer persistent reservations until after paging_init()" arm64, mm, efi: Account for GICv3 LPI tables in static memblock reserve table sunrpc: fix 4 more call sites that were using stack memory with a scatterlist include/linux/module.h: copy __init/__exit attrs to init/cleanup_module Compiler Attributes: add support for __copy (gcc >= 9) lib/crc32.c: mark crc32_le_base/__crc32c_le_base aliases as __pure auxdisplay: ht16k33: fix potential user-after-free on module unload x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls i2c: bcm2835: Clear current buffer pointers and counts after a transfer i2c: cadence: Fix the hold bit setting drm: Use array_size() when creating lease dm thin: fix bug where bio that overwrites thin block ignores FUA Revert "exec: load_script: don't blindly truncate shebang string" Revert "gfs2: read journal in large chunks to locate the head" net: ethernet: freescale: set FEC ethtool regs version ... Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-02-11lib/scatterlist: Provide a DMA page iteratorJason Gunthorpe
Commit 2db76d7c3c6d ("lib/scatterlist: sg_page_iter: support sg lists w/o backing pages") introduced the sg_page_iter_dma_address() function without providing a way to use it in the general case. If the sg_dma_len() is not equal to the sg length callers cannot safely use the for_each_sg_page/sg_page_iter_dma_address combination. Resolve this API mistake by providing a DMA specific iterator, for_each_sg_dma_page(), that uses the right length so sg_page_iter_dma_address() works as expected with all sglists. A new iterator type is introduced to provide compile-time safety against wrongly mixing accessors and iterators. Acked-by: Christoph Hellwig <hch@lst.de> (for scatterlist) Acked-by: Thomas Hellstrom <thellstrom@vmware.com> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> (ipu3-cio2) Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-02-08Merge tag 'asoc-v5.1' of ↵Takashi Iwai
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next ASoC: Updates for v5.1 Lots and lots of new drivers so far, a highlight being the MediaTek BTCVSD which is a driver for a Bluetooth radio chip - the first such driver we've had upstream. Hopefully we will soon also see a baseband with an upstream driver! - Support for only powering up channels that are actively being used. - Quite a few improvements to simplify the generic card drivers, especially the merge of the SCU cards into the main generic drivers. - Lots of fixes for probing on Intel systems, trying to rationalize things to look more standard from a framework point of view. - New drivers for Asahi Kasei Microdevices AK4497, Cirrus Logic CS4341, Google ChromeOS embedded controllers, Ingenic JZ4725B, MediaTek BTCVSD, MT8183 and MT6358, NXP MICFIL, Rockchip RK3328, Spreadtrum DMA controllers, Qualcomm WCD9335, Xilinx S/PDIF and PCM formatters.
2019-02-07media: meye: use u64 for the timestamp internallyHans Verkuil
Just like vb2 does, use u64 internally to store the timestamps of the buffers. Only convert to timeval when interfacing with userspace. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-02-07media: videobuf: use u64 for the timestamp internallyHans Verkuil
Just like vb2 does, use u64 internally to store the timestamps of the buffers. Only convert to timeval when interfacing with userspace. Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-02-06media: Drop superfluous PCM preallocation error checksTakashi Iwai
snd_pcm_lib_preallocate_pages() and co always succeed, so the error check is simply redundant. Drop it. Acked-by: Ezequiel Garcia <ezequiel@collabora.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2019-01-21media: ivtv: add parameter to enable ivtvfb on x86 PAT systemsFrench, Nicholas A
ivtvfb was previously disabled for x86 PAT-enabled systems by commit 1bf1735b4780 ("x86/mm/pat, drivers/media/ivtv: Use arch_phys_wc_add() and require PAT disabled") as a workaround to abstract MTRR code away from device drivers. The driver is not easily upgradable to the PAT-aware ioremap_wc() API since the firmware hides the address ranges that should be marked write-combined from the driver. However, since a write-combined cache on the framebuffer is only a performance enhancement not a requirement for the framebuffer to function, completely disabling the driver in this configuration is not necessary. Add force_pat module parameter and a corresponding kernel configuration parameter to optionally force initialization on PAT-enabled x86 systems with a warning about the lack of write-combined caching, and document the reasons the driver cannot be easily updated to support wc caching on all systems. Signed-off-by: Nick French <naf@ou.edu> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> [hverkuil-cisco@xs4all.nl: fix typo, split long pr_ lines up] Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: ipu3-cio2, dw9714: Remove Jian Xu's e-mailSakari Ailus
Jian Xu has left the company. Remove his e-mail address that no longer works. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-16media: ipu3-cio2: Allow probe to succeed if there are no sensors connectedSakari Ailus
The device won't be powered off on systems that have no sensors connected unless it has a driver bound to it. Allow that to happen even if there are no sensors connected to cio2. Reviewed-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com> Tested-by: Rajneesh Bhardwaj <rajneesh.bhardwaj@linux.intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2019-01-08cross-tree: phase out dma_zalloc_coherent()Luis Chamberlain
We already need to zero out memory for dma_alloc_coherent(), as such using dma_zalloc_coherent() is superflous. Phase it out. This change was generated with the following Coccinelle SmPL patch: @ replace_dma_zalloc_coherent @ expression dev, size, data, handle, flags; @@ -dma_zalloc_coherent(dev, size, handle, flags) +dma_alloc_coherent(dev, size, handle, flags) Suggested-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> [hch: re-ran the script on the latest tree] Signed-off-by: Christoph Hellwig <hch@lst.de>
2019-01-03Remove 'type' argument from access_ok() functionLinus Torvalds
Nobody has actually used the type (VERIFY_READ vs VERIFY_WRITE) argument of the user address range verification function since we got rid of the old racy i386-only code to walk page tables by hand. It existed because the original 80386 would not honor the write protect bit when in kernel mode, so you had to do COW by hand before doing any user access. But we haven't supported that in a long time, and these days the 'type' argument is a purely historical artifact. A discussion about extending 'user_access_begin()' to do the range checking resulted this patch, because there is no way we're going to move the old VERIFY_xyz interface to that model. And it's best done at the end of the merge window when I've done most of my merges, so let's just get this done once and for all. This patch was mostly done with a sed-script, with manual fix-ups for the cases that weren't of the trivial 'access_ok(VERIFY_xyz' form. There were a couple of notable cases: - csky still had the old "verify_area()" name as an alias. - the iter_iov code had magical hardcoded knowledge of the actual values of VERIFY_{READ,WRITE} (not that they mattered, since nothing really used it) - microblaze used the type argument for a debug printout but other than those oddities this should be a total no-op patch. I tried to fix up all architectures, did fairly extensive grepping for access_ok() uses, and the changes are trivial, but I may have missed something. Any missed conversion should be trivially fixable, though. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-20media: cx23885: only reset DMA on problematic CPUsBrad Love
It is reported that commit 95f408bbc4e4 ("media: cx23885: Ryzen DMA related RiSC engine stall fixes") caused regresssions with other CPUs. Ensure that the quirk will be applied only for the CPUs that are known to cause problems. A module option is added for explicit control of the behaviour. Fixes: 95f408bbc4e4 ("media: cx23885: Ryzen DMA related RiSC engine stall fixes") Signed-off-by: Brad Love <brad@nextdimension.cc> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-20media: ddbridge: Move asm includes after linux onesNathan Chancellor
Without this, cpumask_t and bool are not defined: In file included from drivers/media/pci/ddbridge/ddbridge-ci.c:19: In file included from drivers/media/pci/ddbridge/ddbridge.h:22: ./arch/arm/include/asm/irq.h:35:50: error: unknown type name 'cpumask_t' extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask, ^ ./arch/arm/include/asm/irq.h:36:9: error: unknown type name 'bool' bool exclude_self); ^ Doing a survey of the kernel tree, this appears to be expected because '#include <asm/irq.h>' is always after the linux includes. This also fixes warnings of this variety (with Clang): In file included from drivers/media/pci/ddbridge/ddbridge-ci.c:19: In file included from drivers/media/pci/ddbridge/ddbridge.h:56: In file included from ./include/media/dvb_net.h:22: In file included from ./include/linux/netdevice.h:50: In file included from ./include/uapi/linux/neighbour.h:6: In file included from ./include/linux/netlink.h:9: In file included from ./include/net/scm.h:11: In file included from ./include/linux/sched/signal.h:6: ./include/linux/signal.h:87:11: warning: array index 3 is past the end of the array (which contains 2 elements) [-Warray-bounds] return (set->sig[3] | set->sig[2] | ^ ~ ./arch/arm/include/asm/signal.h:17:2: note: array 'sig' declared here unsigned long sig[_NSIG_WORDS]; ^ Fixes: b6973637c4cc ("media: ddbridge: remove another duplicate of io.h and sort includes") Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Tested-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: ddbridge: remove another duplicate of io.h and sort includesMauro Carvalho Chehab
The io.h was still included twice. Having a large number of includes like that unsorted is likely the reason why we ended by having 3 includes of io.h and two includes of interrupt.h at the first place. So, let's reorder the includes on alphabetic order. That would make easier to maintain it. Fixes: 12645e0655e4 ("media: ddbridge: remove some duplicated include file") Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: ddbridge: remove some duplicated include filezhong jiang
interrupt.h and io.h have duplicated include. hence just remove redundant file. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: remove redundant include moduleparam.hzhong jiang
module.h already contained moduleparam.h, so it is safe to remove the redundant include. The issue is detected with the help of Coccinelle. Signed-off-by: zhong jiang <zhongjiang@huawei.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: drivers: media: pci: b2c2: Fix errors due to unappropriate coding style.Iliya Iliev
Fix error due to assignment in conditional expression. Fix errors due to absence of empty spaces separators after commas in function calls. Fix errors due to lines longer than 80 characters. Signed-off-by: Iliya Iliev <iliyailiev3592@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-03media: saa7134: rc-core maintains users count, no need to duplicateSean Young
This simplifies the code a little. Tested with suspend and resume. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-22media: saa7134: hvr1110 can decode rc6Sean Young
The function get_key_hvr1110 can only decode rc5, however this is a standard hauppauge z8f0811 which can decode rc6 as well. Use get_key_haup_xvr() instead. Tested on a HVR 1110. Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-22media: saa7134: rc device does not need 'saa7134 IR (' prefixSean Young
Before this patch, the rc name is truncated to: saa7134 IR (Hauppauge WinTV-HVR Now it is: Hauppauge WinTV-HVR1150 ATSC/QAM-Hybrid Signed-off-by: Sean Young <sean@mess.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-20media: vidioc_cropcap -> vidioc_g_pixelaspectHans Verkuil
Now vidioc_cropcap is only used to return the pixelaspect, so rename it accordingly. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Tested-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-20media: cropcap/g_selection splitHans Verkuil
If g_selection is implemented, then the v4l2-ioctl cropcap code assumes that cropcap just implements the pixelaspect part and that g_selection provides the crop bounds and default rectangles. There are still some drivers that only implement cropcap and not g_selection. Split up cropcap into a cropcap and g_selection for those drivers. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-06media: intel-ipu3: cio2: Remove redundant definitionsRajmohan Mani
Removed redundant CIO2_IMAGE_MAX_* definitions Fixes: c2a6a07afe4a ("media: intel-ipu3: cio2: add new MIPI-CSI2 driver") Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-06media: ipu3-cio2: Use cio2_queues_exitSakari Ailus
The ipu3-cio2 driver has a function to tear down video devices as well as the associated video buffer queues. Use it. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Tested-by: Bingbu Cao <bingbu.cao@intel.com> Reviewed-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-11-06media: ipu3-cio2: Unregister device nodes first, then release resourcesSakari Ailus
While there are issues related to object lifetime management, unregister the media device first, followed immediately by other device nodes when the driver is being unbound. Only then the resources needed by the driver may be released. This is slightly safer. Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Tested-by: Bingbu Cao <bingbu.cao@intel.com> Reviewed-by: Bingbu Cao <bingbu.cao@intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-13 00:53:07 +0000