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2016-07-23[media] v4l2-fh.rst: add fh contents from v4l2-framework.rstMauro Carvalho Chehab
Move the v4l2_fh specific content from v4l2-framework.rst to v4l2-fh.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-fh.h: add documentation for itMauro Carvalho Chehab
This header file was undocumented. Add documentation for it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-event.rst: add cross-references and markupsMauro Carvalho Chehab
Improve events documentation by adding cross references, sub-titles and other markup elements. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-event.h: document all functionsMauro Carvalho Chehab
Several functions weren't documented. Document them all. While here, makes checkpatch.pl happy. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-event.rst: add text from v4l2-framework.rstMauro Carvalho Chehab
Move the v4l2 event-specific text from v4l2-framework.rst to v4l2-event.rst. That helps to keep the text together with the functions it describes, and makes easier to identify documentation gaps. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-framework.rst: remove videobuf quick chapterMauro Carvalho Chehab
As we merged the videobuf chapter at the kABI section, and it is a way more complete, just remove the small videobuf chapter that came from framework.txt. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-dev: add cross-references and improve markupMauro Carvalho Chehab
Add cross-references for the functions/structs and add the markup tags to improve its display. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] doc-rst: move v4l2-dev doc to a separate fileMauro Carvalho Chehab
Move the documentation for video device node creation to a separate file. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] doc-rst: document v4l2-dev.hMauro Carvalho Chehab
Add documentation for v4l2-dev.h, and put it at v4l2-framework.rst, where struct video_device is currently documented. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] mc-core: Fix a cross-referenceMauro Carvalho Chehab
The v4l2_subdev reference was using the wrong tag. Fix it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-common.h: Add documentation for other functionsMauro Carvalho Chehab
Not all functions at v4l2-common.h are documented. Add documentation for some other ones. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-common.h: document the subdev functionsMauro Carvalho Chehab
There are some subdev-specific functions at v4l2-common.h that are mentioned at v4l2-subdev.rst. Document them. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-subdev.rst: add cross references to new sectionsMauro Carvalho Chehab
The two new sections were missing cross-references, and had some other minor issues with the markups. Add such things. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-subdev.rst: add two sections from v4l2-framework.rstMauro Carvalho Chehab
There are two additional subdev-specific sections at the v4l2-framework file. Move them to the subdev chapter, in order to better organize the book. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-async: document the remaining stuffMauro Carvalho Chehab
There are one enum and 4 functions undocumented there. Document them. That will fix the broken links at the v4l2-subdev.rst file. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] doc-rst: merge v4l2-async.rst with v4l2-subdev.rstMauro Carvalho Chehab
The Async API is actually part of the v4l2 subdev. Move its declarations to it. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-subdev.rst: add cross-referencesMauro Carvalho Chehab
Enrich the subdevice description by linking it to the functions and structs from v4l2-subdev.h. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-subdev.h: Improve documentationMauro Carvalho Chehab
This header were poorly documented, and weren't using the kernel-doc format. Document everything but the macros using the right format. While here, also fix the other comments to match the Linux CodingStyle. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-subdev.rst: add documentation from v4l2-framework.rstMauro Carvalho Chehab
There are lots of documentation about V4L2 subdevices at v4l2-framework.rst. Move them to its specific chapter at v4l2-subdev.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-device.rst: do cross references with kernel-docMauro Carvalho Chehab
This document describes the main kAPI interfaces for the v4l2-device.h header. Add cross references to the documentation produced via kernel-doc. While here, also use monotonic font for constants. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-device.rst: add contents from v4l2-frameworkMauro Carvalho Chehab
Part of the contents of v4l2-framework is related to the kAPI defined by v4l2-device. Move such contents to the v4l2-device.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] doc-rst: Split v4l-core into one file per kAPIMauro Carvalho Chehab
Sphinx produce a 1:1 mapping between a rst file and an html file. So, we need to split the kernel-doc tags on multiple documents. A side effect is that we're now having a better name for each section of the kAPI documentation. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] v4l2-device.h: document functionsMauro Carvalho Chehab
The functions at v4l2-device.h are not using the proper markups. Add it, and include at the v4l2-core.rst. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] doc-rst: Fix license for the media booksMauro Carvalho Chehab
The kAPI, v4l-drivers and dvb-drivers never used the GNU FDL license. The addition of such license header were just due to copy-and-paste. So, let's fix it. As the media_kapi were part of device-drivers.tmp, it is under GPL v2+. The other two books is an agregation of files without any license explicitly specified. So, they're all bound to the Kernel's COPYING license. So, they're GPL v2 only. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] media-entry.h: Fix a note markupMauro Carvalho Chehab
The Sphinx note markup for media_remove_intf_links() is wrong: there's a missing space. While here, let's auto-numerate the two notes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] doc-rst: better organize the media booksMauro Carvalho Chehab
The uAPI book has 5 parts, but they lost numeration after conversion to rst. Manually number those parts, and make the main index with 1 depth, to only show the parts and the annexes. At each part, use :maxwidth: 5, in order to show a more complete index. While here, fix the cross-references between different books. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23[media] doc-rst: Fix some Sphinx warningsMauro Carvalho Chehab
Fix all remaining media warnings with ReST that are fixable without changing at the Sphinx code. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23Merge branch 'patchwork' into topic/docs-nextMauro Carvalho Chehab
* patchwork: (1492 commits) [media] cec: always check all_device_types and features [media] cec: poll should check if there is room in the tx queue [media] vivid: support monitor all mode [media] cec: fix test for unconfigured adapter in main message loop [media] cec: limit the size of the transmit queue [media] cec: zero unused msg part after msg->len [media] cec: don't set fh to NULL in CEC_TRANSMIT [media] cec: clear all status fields before transmit and always fill in sequence [media] cec: CEC_RECEIVE overwrote the timeout field [media] cxd2841er: Reading SNR for DVB-C added [media] cxd2841er: Reading BER and UCB for DVB-C added [media] cxd2841er: fix switch-case for DVB-C [media] cxd2841er: fix signal strength scale for ISDB-T [media] cxd2841er: adjust the dB scale for DVB-C [media] cxd2841er: provide signal strength for DVB-C [media] cxd2841er: fix BER report via DVBv5 stats API [media] mb86a20s: apply mask to val after checking for read failure [media] airspy: fix error logic during device register [media] s5p-cec/TODO: add TODO item [media] cec/TODO: drop comment about sphinx documentation ... Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-23Merge branch 'docs-next' of git://git.lwn.net/linux into topic/docs-nextMauro Carvalho Chehab
* 'docs-next' of git://git.lwn.net/linux: doc-rst: kernel-doc: fix handling of address_space tags Revert "doc/sphinx: Enable keep_warnings" doc-rst: kernel-doc directive, fix state machine reporter docs: deprecate kernel-doc-nano-HOWTO.txt doc/sphinx: Enable keep_warnings Documentation: add watermark_scale_factor to the list of vm systcl file kernel-doc: Fix up warning output docs: Get rid of some kernel-documentation warnings
2016-07-23dmaengine: ioat: statify symbolVinod Koul
Sparse warns: drivers/dma/ioat/init.c:1215:6: warning: symbol 'ioat_resume' was not declared. Should it be static? Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Dave Jiang <dave.jiang@intel.com>
2016-07-23dmaengine: pxa_dma: implement device_synchronizeRobert Jarzmik
Implement the function which wait until a dma channel is stopped to have a synchronization point. This also protects the pxad_remove() from races, such as spurious interrupts while removing the driver, because : - as long as there is one dma channel requested, ie. dma_chan_get() but no dma_chan_put(), the try_module_get() of dma_chan_get() prevents the remove() routine from running - when the last channel is released, ie. the last dma_chan_put() is called, if there is a running DMA, pxad_synchronize() is called - pxad_synchronize() waits for the channel to stop, which in turn ensures on pxa architecture that the interrupt cannot be fired anymore Reported-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-07-23dmaengine: imx-sdma: remove assignment never usedVinod Koul
David reported: [drivers/dma/imx-sdma.c:769]: (style) Variable 'emi_2_emi' is assigned a value that is never used Since emi_2_emi is never used afterwards, remove thsi as well Reported-by: David Binderman <dcb314@hotmail.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-07-23dmaengine: imx-sdma: remove dummy assignmentVinod Koul
David reported: drivers/dma/imx-sdma.c:1003]: (style) Same expression on both sides of '|=' ORing with itself yields same result, So remove this Reported-by: David Binderman <dcb314@hotmail.com> Cc: Sascha Hauer <s.hauer@pengutronix.de> Cc: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-07-23dmaengine: cppi: remove unused and bogus checkVinod Koul
In cppi41_dma_prep_slave_sg() variable num is initialized to zero, but never updated and a BUG_ON is checked for it being greater than zero which will be always false. Remove the bogus check and this variable Reported-by: David Binderman <linuxdev.baldrick@gmail.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-07-23dmaengine: qcom_hidma_lli: kill the tasklets upon exitVinod Koul
drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Sinan Kaya <okaya@codeaurora.org>
2016-07-23dmaengine: pxa_dma: remove owner assignmentVinod Koul
debugfs file operations owner is set by core, so remove Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
2016-07-23dmaengine: fsl_raid: remove owner assignmentVinod Koul
platform driver operations owner is set by core, so remove Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Xuelin Shi <xuelin.shi@freescale.com>
2016-07-23dmaengine: coh901318: remove owner assignmentVinod Koul
debugfs file operations owner is set by core, so remove Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Linus Walleij <linus.walleij@linaro.org>
2016-07-23dmaengine: qcom_hidma: kill the tasklets upon exitVinod Koul
drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Acked-by: Sinan Kaya <okaya@codeaurora.org>
2016-07-23dmaengine: txx9dmac: explicitly freeup irqVinod Koul
dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com>
2016-07-23dmaengine: sirf-dma: kill the tasklets upon exitVinod Koul
drivers should ensure that tasklets are killed, so that they can't be run after driver remove is executed Signed-off-by: Vinod Koul <vinod.koul@intel.com> Cc: Barry Song <Baohua.Song@csr.com>
2016-07-23dmaengine: s3c24xx: kill the tasklets upon exitVinod Koul
drivers should ensure that tasklets are killed, so that they can't be executed after driver remove is executed, so ensure they are killed. This driver used vchan tasklets, so those need to be killed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-07-23dmaengine: s3c24xx: explicitly freeup irqVinod Koul
dmaengine device should explicitly call devm_free_irq() when using devm_request_irq(). The irq is still ON when devices remove is executed and irq should be quiesced before remove is completed. Signed-off-by: Vinod Koul <vinod.koul@intel.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2016-07-23netfilter: nft_compat: fix crash when related match/target module is removedLiping Zhang
We "cache" the loaded match/target modules and reuse them, but when the modules are removed, we still point to them. Then we may end up with invalid memory references when using iptables-compat to add rules later. Input the following commands will reproduce the kernel crash: # iptables-compat -A INPUT -j LOG # iptables-compat -D INPUT -j LOG # rmmod xt_LOG # iptables-compat -A INPUT -j LOG BUG: unable to handle kernel paging request at ffffffffa05a9010 IP: [<ffffffff813f783e>] strcmp+0xe/0x30 Call Trace: [<ffffffffa05acc43>] nft_target_select_ops+0x83/0x1f0 [nft_compat] [<ffffffffa058a177>] nf_tables_expr_parse+0x147/0x1f0 [nf_tables] [<ffffffffa058e541>] nf_tables_newrule+0x301/0x810 [nf_tables] [<ffffffff8141ca00>] ? nla_parse+0x20/0x100 [<ffffffffa057fa8f>] nfnetlink_rcv+0x33f/0x53d [nfnetlink] [<ffffffffa057f94b>] ? nfnetlink_rcv+0x1fb/0x53d [nfnetlink] [<ffffffff817116b8>] netlink_unicast+0x178/0x220 [<ffffffff81711a5b>] netlink_sendmsg+0x2fb/0x3a0 [<ffffffff816b7fc8>] sock_sendmsg+0x38/0x50 [<ffffffff816b8a7e>] ___sys_sendmsg+0x28e/0x2a0 [<ffffffff816bcb7e>] ? release_sock+0x1e/0xb0 [<ffffffff81804ac5>] ? _raw_spin_unlock_bh+0x35/0x40 [<ffffffff816bcbe2>] ? release_sock+0x82/0xb0 [<ffffffff816b93d4>] __sys_sendmsg+0x54/0x90 [<ffffffff816b9422>] SyS_sendmsg+0x12/0x20 [<ffffffff81805172>] entry_SYSCALL_64_fastpath+0x1a/0xa9 So when nobody use the related match/target module, there's no need to "cache" it. And nft_[match|target]_release are useless anymore, remove them. Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-07-23netfilter: nft_compat: put back match/target module if init failLiping Zhang
If the user specify the invalid NFTA_MATCH_INFO/NFTA_TARGET_INFO attr or memory alloc fail, we should call module_put to the related match or target. Otherwise, we cannot remove the module even nobody use it. Signed-off-by: Liping Zhang <liping.zhang@spreadtrum.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-07-23netfilter: h323: Use mod_timer instead of set_expect_timeoutGao Feng
Simplify the code without any side effect. The set_expect_timeout is used to modify the timer expired time. It tries to delete timer, and add it again. So we could use mod_timer directly. Signed-off-by: Gao Feng <fgao@ikuai8.com> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2016-07-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Fix memory leak in nftables, from Liping Zhang. 2) Need to check result of vlan_insert_tag() in batman-adv otherwise we risk NULL skb derefs, from Sven Eckelmann. 3) Check for dev_alloc_skb() failures in cfg80211, from Gregory Greenman. 4) Handle properly when we have ppp_unregister_channel() happening in parallel with ppp_connect_channel(), from WANG Cong. 5) Fix DCCP deadlock, from Eric Dumazet. 6) Bail out properly in UDP if sk_filter() truncates the packet to be smaller than even the space that the protocol headers need. From Michal Kubecek. 7) Similarly for rose, dccp, and sctp, from Willem de Bruijn. 8) Make TCP challenge ACKs less predictable, from Eric Dumazet. 9) Fix infinite loop in bgmac_dma_tx_add() from Florian Fainelli. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (65 commits) packet: propagate sock_cmsg_send() error net/mlx5e: Fix del vxlan port command buffer memset packet: fix second argument of sock_tx_timestamp() net: switchdev: change ageing_time type to clock_t Update maintainer for EHEA driver. net/mlx4_en: Add resilience in low memory systems net/mlx4_en: Move filters cleanup to a proper location sctp: load transport header after sk_filter net/sched/sch_htb: clamp xstats tokens to fit into 32-bit int net: cavium: liquidio: Avoid dma_unmap_single on uninitialized ndata net: nb8800: Fix SKB leak in nb8800_receive() et131x: Fix logical vs bitwise check in et131x_tx_timeout() vlan: use a valid default mtu value for vlan over macsec net: bgmac: Fix infinite loop in bgmac_dma_tx_add() mlxsw: spectrum: Prevent invalid ingress buffer mapping mlxsw: spectrum: Prevent overwrite of DCB capability fields mlxsw: spectrum: Don't emit errors when PFC is disabled mlxsw: spectrum: Indicate support for autonegotiation mlxsw: spectrum: Force link training according to admin state r8152: add MODULE_VERSION ...
2016-07-23Merge branch 'overlayfs-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs Pull overlayfs fixes from Miklos Szeredi: "This contains a fix for a potential crash/corruption issue and another where the suid/sgid bits weren't cleared on write" * 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: verify upper dentry in ovl_remove_and_whiteout() ovl: Copy up underlying inode's ->i_mode to overlay inode ovl: handle ATTR_KILL*
2016-07-23Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "Five fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: pps: do not crash when failed to register tools/vm/slabinfo: fix an unintentional printf testing/radix-tree: fix a macro expansion bug radix-tree: fix radix_tree_iter_retry() for tagged iterators. mm: memcontrol: fix cgroup creation failure after many small jobs
2016-07-23Merge tag 'drm-fixes-for-v4.7-rc8-intel-kbl' of ↵Linus Torvalds
git://people.freedesktop.org/~airlied/linux Pull intel kabylake drm fixes from Dave Airlie: "As mentioned Intel has gathered all the Kabylake fixes from -next, which we've enabled in 4.7 for the first time, these are pretty much limited in scope to only affects kabylake, which is hw that isn't shipping yet. So I'm mostly okay with it going in now. If we don't land this, it might be a good idea to disable kabylake support in 4.7 before we ship" * tag 'drm-fixes-for-v4.7-rc8-intel-kbl' of git://people.freedesktop.org/~airlied/linux: (28 commits) drm/i915/kbl: Introduce the first official DMC for Kabylake. drm/i915: Introduce Kabypoint PCH for Kabylake H/DT. drm/i915/gen9: implement WaConextSwitchWithConcurrentTLBInvalidate drm/i915/gen9: Add WaFbcHighMemBwCorruptionAvoidance drm/i195/fbc: Add WaFbcNukeOnHostModify drm/i915/gen9: Add WaFbcWakeMemOn drm/i915/gen9: Add WaFbcTurnOffFbcWatermark drm/i915/kbl: Add WaClearSlmSpaceAtContextSwitch drm/i915/gen9: Add WaEnableChickenDCPR drm/i915/kbl: Add WaDisableSbeCacheDispatchPortSharing drm/i915/kbl: Add WaDisableGafsUnitClkGating drm/i915/kbl: Add WaForGAMHang drm/i915: Add WaInsertDummyPushConstP for bxt and kbl drm/i915/kbl: Add WaDisableDynamicCreditSharing drm/i915/kbl: Add WaDisableGamClockGating drm/i915/gen9: Enable must set chicken bits in config0 reg drm/i915/kbl: Add WaDisableLSQCROPERFforOCL drm/i915/kbl: Add WaDisableSDEUnitClockGating drm/i915/kbl: Add WaDisableFenceDestinationToSLM for A0 drm/i915/kbl: Add WaEnableGapsTsvCreditFix ...