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2016-11-13Merge tag 'usb-4.9-rc5' of ↵Linus Torvalds1-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB / PHY fixes from Greg KH: "Here are a number of small USB and PHY driver fixes for 4.9-rc5 Nothing major, just small fixes for reported issues, all of these have been in linux-next for a while with no reported issues" * tag 'usb-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: USB: cdc-acm: fix TIOCMIWAIT cdc-acm: fix uninitialized variable drivers/usb: Skip auto handoff for TI and RENESAS usb controllers usb: musb: remove duplicated actions usb: musb: da8xx: Don't print phy error on -EPROBE_DEFER phy: sun4i: check PMU presence when poking unknown bit of pmu phy-rockchip-pcie: remove deassert of phy_rst from exit callback phy: da8xx-usb: rename the ohci device to ohci-da8xx phy: Add reset callback for not generic phy uwb: fix device reference leaks usb: gadget: u_ether: remove interrupt throttling usb: dwc3: st: add missing <linux/pinctrl/consumer.h> include usb: dwc3: Fix error handling for core init
2016-11-11Merge tag 'acpi-4.9-rc5' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fix from Rafael Wysocki: "Fix a recent regression in the 8250_dw serial driver introduced by adding a quirk for the APM X-Gene SoC to it which uncovered an issue related to the handling of built-in device properties in the core ACPI device enumeration code (Heikki Krogerus)" * tag 'acpi-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI / platform: Add support for build-in properties
2016-11-11Merge branch 'device-properties'Rafael J. Wysocki1-1/+2
* device-properties: ACPI / platform: Add support for build-in properties
2016-11-11Merge branch 'akpm' (patches from Andrew)Linus Torvalds4-9/+10
Merge misc fixes from Andrew Morton: "15 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: lib/stackdepot: export save/fetch stack for drivers mm: kmemleak: scan .data.ro_after_init memcg: prevent memcg caches to be both OFF_SLAB & OBJFREELIST_SLAB coredump: fix unfreezable coredumping task mm/filemap: don't allow partially uptodate page for pipes mm/hugetlb: fix huge page reservation leak in private mapping error paths ocfs2: fix not enough credit panic Revert "console: don't prefer first registered if DT specifies stdout-path" mm: hwpoison: fix thp split handling in memory_failure() swapfile: fix memory corruption via malformed swapfile mm/cma.c: check the max limit for cma allocation scripts/bloat-o-meter: fix SIGPIPE shmem: fix pageflags after swapping DMA32 object mm, frontswap: make sure allocated frontswap map is assigned mm: remove extra newline from allocation stall warning
2016-11-11Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull VFS fixes from Al Viro: "Christoph's and Jan's aio fixes, fixup for generic_file_splice_read (removal of pointless detritus that actually breaks it when used for gfs2 ->splice_read()) and fixup for generic_file_read_iter() interaction with ITER_PIPE destinations." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: splice: remove detritus from generic_file_splice_read() mm/filemap: don't allow partially uptodate page for pipes aio: fix freeze protection of aio writes fs: remove aio_run_iocb fs: remove the never implemented aio_fsync file operation aio: hold an extra file reference over AIO read/write operations
2016-11-11Merge tag 'ceph-for-4.9-rc5' of git://github.com/ceph/ceph-clientLinus Torvalds1-0/+2
Pull Ceph fixes from Ilya Dryomov: "Ceph's ->read_iter() implementation is incompatible with the new generic_file_splice_read() code that went into -rc1. Switch to the less efficient default_file_splice_read() for now; the proper fix is being held for 4.10. We also have a fix for a 4.8 regression and a trival libceph fixup" * tag 'ceph-for-4.9-rc5' of git://github.com/ceph/ceph-client: libceph: initialize last_linger_id with a large integer libceph: fix legacy layout decode with pool 0 ceph: use default file splice read callback
2016-11-11mm: kmemleak: scan .data.ro_after_initJakub Kicinski2-1/+7
Limit the number of kmemleak false positives by including .data.ro_after_init in memory scanning. To achieve this we need to add symbols for start and end of the section to the linker scripts. The problem was been uncovered by commit 56989f6d8568 ("genetlink: mark families as __ro_after_init"). Link: http://lkml.kernel.org/r/1478274173-15218-1-git-send-email-jakub.kicinski@netronome.com Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Cong Wang <xiyou.wangcong@gmail.com> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-11Revert "console: don't prefer first registered if DT specifies stdout-path"Hans de Goede1-6/+0
This reverts commit 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path"). The reverted commit changes existing behavior on which many ARM boards rely. Many ARM small-board-computers, like e.g. the Raspberry Pi have both a video output and a serial console. Depending on whether the user is using the device as a more regular computer; or as a headless device we need to have the console on either one or the other. Many users rely on the kernel behavior of the console being present on both outputs, before the reverted commit the console setup with no console= kernel arguments on an ARM board which sets stdout-path in dt would look like this: [root@localhost ~]# cat /proc/consoles ttyS0 -W- (EC p a) 4:64 tty0 -WU (E p ) 4:1 Where as after the reverted commit, it looks like this: [root@localhost ~]# cat /proc/consoles ttyS0 -W- (EC p a) 4:64 This commit reverts commit 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path") restoring the original behavior. Fixes: 05fd007e4629 ("console: don't prefer first registered if DT specifies stdout-path") Link: http://lkml.kernel.org/r/20161104121135.4780-2-hdegoede@redhat.com Signed-off-by: Hans de Goede <hdegoede@redhat.com> Cc: Paul Burton <paul.burton@imgtec.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: Thorsten Leemhuis <regressions@leemhuis.info> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Tejun Heo <tj@kernel.org> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-11mm, frontswap: make sure allocated frontswap map is assignedVlastimil Babka1-2/+3
Christian Borntraeger reports: With commit 8ea1d2a1985a ("mm, frontswap: convert frontswap_enabled to static key") kmemleak complains about a memory leak in swapon unreferenced object 0x3e09ba56000 (size 32112640): comm "swapon", pid 7852, jiffies 4294968787 (age 1490.770s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: __vmalloc_node_range+0x194/0x2d8 vzalloc+0x58/0x68 SyS_swapon+0xd60/0x12f8 system_call+0xd6/0x270 Turns out kmemleak is right. We now allocate the frontswap map depending on the kernel config (and no longer on the enablement) swapfile.c: [...] if (IS_ENABLED(CONFIG_FRONTSWAP)) frontswap_map = vzalloc(BITS_TO_LONGS(maxpages) * sizeof(long)); but later on this is passed along --> enable_swap_info(p, prio, swap_map, cluster_info, frontswap_map); and ignored if frontswap is disabled --> frontswap_init(p->type, frontswap_map); static inline void frontswap_init(unsigned type, unsigned long *map) { if (frontswap_enabled()) __frontswap_init(type, map); } Thing is, that frontswap map is never freed. The leakage is relatively not that bad, because swapon is an infrequent and privileged operation. However, if the first frontswap backend is registered after a swap type has been already enabled, it will WARN_ON in frontswap_register_ops() and frontswap will not be available for the swap type. Fix this by making sure the map is assigned by frontswap_init() as long as CONFIG_FRONTSWAP is enabled. Fixes: 8ea1d2a1985a ("mm, frontswap: convert frontswap_enabled to static key") Link: http://lkml.kernel.org/r/20161026134220.2566-1-vbabka@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Reported-by: Christian Borntraeger <borntraeger@de.ibm.com> Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com> Cc: David Vrabel <david.vrabel@citrix.com> Cc: Juergen Gross <jgross@suse.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-11-10libceph: initialize last_linger_id with a large integerIlya Dryomov1-0/+2
osdc->last_linger_id is a counter for lreq->linger_id, which is used for watch cookies. Starting with a large integer should ease the task of telling apart kernel and userspace clients. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2016-11-10ACPI / platform: Add support for build-in propertiesHeikki Krogerus1-1/+2
We have a couple of drivers, acpi_apd.c and acpi_lpss.c, that need to pass extra build-in properties to the devices they create. Previously the drivers added those properties to the struct device which is member of the struct acpi_device, but that does not work. Those properties need to be assigned to the struct device of the platform device instead in order for them to become available to the drivers. To fix this, this patch changes acpi_create_platform_device function to take struct property_entry pointer as parameter. Fixes: 20a875e2e86e (serial: 8250_dw: Add quirk for APM X-Gene SoC) Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Tested-by: Yazen Ghannam <yazen.ghannam@amd.com> Tested-by: Jérôme de Bretagne <jerome.debretagne@gmail.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-11-09Merge tag 'sound-4.9-rc5' of ↵Linus Torvalds1-6/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "This became a largish pull-request, as we've got a bunch of pending ASoC fixes at this time. One noticeable change is the removal of error directive in uapi/sound/asoc.h. We found that the API has been already used on Chromebooks, so we need to support it even now. A slight big LOC is found in Qualcomm lpass driver, but the rest are all small and easy fixes for ASoC drivers (sti, sun4i, Realtek codecs, Intel, tas571x, etc) in addition to the patches to harden the ALSA core proc file accesses" * tag 'sound-4.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (26 commits) ALSA: info: Return error for invalid read/write ALSA: info: Limit the proc text input size ASoC: samsung: spdif: Fix DMA filter initialization ASoC: sun4i-codec: Enable bus clock after getting GPIO ASoC: lpass-cpu: add module licence and description ASoC: lpass-platform: Fix broken pcm data usage ASoC: sun4i-codec: return error code instead of NULL when create_card fails ASoC: hdmi-codec: Fix hdmi_of_xlate_dai_name when #sound-dai-cells = <0> ASoC: samsung: get access to DMA engine early to defer probe properly ASoC: da7219: Connect output enable register to DAIOUT ASoC: Intel: Skylake: Fix to turn off hdmi power on probe failure ASoC: sti-sas: enable fast io for regmap ASoC: sti: fix channel status update after playback start ASoC: PXA: Brownstone needs I2C ASoC: Intel: Skylake: Always acquire runtime pm ref on unload ASoC: Intel: Atom: add terminate entry for dmi_system_id tables ASoC: rt298: fix jack type detect error ASoC: rt5663: fix a debug statement ASoC: cs4270: fix DAPM stream name mismatch ASoC: Intel: haswell depends on sst-firmware ...
2016-11-09Merge branch 'for-linus' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: "Two bug fixes - a memory alignment fix in the s390 only hypfs code - a fix for the generic percpu code that caused ftrace to break on s390. This is not relevant for x86 but for all architectures that use the generic percpu code" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: percpu: use notrace variant of preempt_disable/preempt_enable s390/hypfs: Use get_free_page() instead of kmalloc to ensure page alignment
2016-11-08percpu: use notrace variant of preempt_disable/preempt_enableHeiko Carstens1-2/+2
Commit 345ddcc882d8 ("ftrace: Have set_ftrace_pid use the bitmap like events do") added a couple of this_cpu_read calls to the ftrace code. On x86 this is not a problem, since it has single instructions to read percpu data. Other architectures which use the generic variant now have additional preempt_disable and preempt_enable calls in the core ftrace code. This may lead to recursive calls and in result to a dead machine, e.g. if preemption and debugging options are enabled. To fix this use the notrace variant of preempt_disable and preempt_enable within the generic percpu code. Reported-and-bisected-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Tested-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Fixes: 345ddcc882d8 ("ftrace: Have set_ftrace_pid use the bitmap like events do") Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2016-11-07Merge tag 'phy-for-4.9-rc' of ↵Greg Kroah-Hartman1-0/+7
git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy into usb-linus Kishon writes: phy: for 4.9 -rc phy fixes: *) Add a empty function for phy_reset when CONFIG_GENERIC_PHY is not set *) change the phy lookup table for da8xx-usb to match it with the name present in the board configuraion file (used for non-dt boot) *) Fix incorrect programming sequence in w.r.t deassert of phy_rst in phy-rockchip-pcie *) Fix to avoid NULL pointer dereferencing error in sun4i phy Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-05Merge tag 'for-linus-20161104' of git://git.infradead.org/linux-mtdLinus Torvalds1-1/+1
Pull MTD fixes from Brian Norris: - MAINTAINERS updates to reflect some new maintainers/submaintainers. We have some great volunteers who've been developing and reviewing already. We're going to try a group maintainership model, so eventually you'll probably see pull requests from people besides me. - NAND fixes from Boris: "Three simple fixes: - fix a non-critical bug in the gpmi driver - fix a bug in the 'automatic NAND timings selection' feature introduced in 4.9-rc1 - fix a false positive uninitialized-var warning" * tag 'for-linus-20161104' of git://git.infradead.org/linux-mtd: mtd: mtk: avoid warning in mtk_ecc_encode mtd: nand: Fix data interface configuration logic mtd: nand: gpmi: disable the clocks on errors MAINTAINERS: add more people to the MTD maintainer team MAINTAINERS: add a maintainer for the SPI NOR subsystem
2016-11-05phy: Add reset callback for not generic phyRandy Li1-0/+7
Add a dummy function for phy_reset in case the CONFIG_GENERIC_PHY is disabled. Signed-off-by: Randy Li <ayaka@soulik.info> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
2016-11-04Merge tag 'drm-fixes-for-v4.9-rc4' of ↵Linus Torvalds1-1/+7
git://people.freedesktop.org/~airlied/linux Pull drm fixes from Dave Airlie: "Fixes for amdgpu, radeon, intel, imx and virtio-gpu. This is a bit larger than I'd like, but I had some stuff I meant to send for -rc3 but was waiting for the PAT regression fix to land. So this is really fixes for rc3 and rc4 in one go. There are a set of fixes for an oops we've been seeing around MST display unplug, along with more suspend/resume and shutdown fixes for amdgpu, one power management follow on fix for nouveau, and set of imx fixes, and a single virtio-gpu regression fix" * tag 'drm-fixes-for-v4.9-rc4' of git://people.freedesktop.org/~airlied/linux: (54 commits) virtio-gpu: fix vblank events drm/nouveau/acpi: fix check for power resources support drm/i915: Fix SKL+ 90/270 degree rotated plane coordinate computation drm/i915: Remove two invalid warns drm/i915: Rotated view does not need a fence drm/i915/fbc: fix CFB size calculation for gen8+ drm: i915: Wait for fences on new fb, not old drm/i915: Clean up DDI DDC/AUX CH sanitation drm/i915: Respect alternate_aux_channel for all DDI ports drm/i915/gen9: fix watermarks when using the pipe scaler drm/i915: Fix mismatched INIT power domain disabling during suspend drm/i915: fix a read size argument drm/i915: Use fence_write() from rpm resume drm/i915/gen9: fix DDB partitioning for multi-screen cases drm/i915: workaround sparse warning on variable length arrays drm/i915: keep declarations in i915_drv.h drm/amd/powerplay: fix bug get wrong evv voltage of Polaris. drm/amdgpu/si_dpm: workaround for SI kickers drm/radeon/si_dpm: workaround for SI kickers drm/amdgpu: fix s3 resume back, uvd dpm randomly can't disable. ...
2016-11-04Merge remote-tracking branch 'asoc/fix/topology-abi' into asoc-linusMark Brown1-6/+0
2016-11-01Merge branch 'drm-fixes-staging' of ssh://people.freedesktop.org/~/linux ↵Dave Airlie1-1/+7
into drm-fixes Pull the staging fixes tree I had into rc3 to make real -fixes again.
2016-10-31Merge tag 'regmap-fix-v4.9-rc3' of ↵Linus Torvalds1-5/+6
git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap Pull regmap fixes from Mark Brown: "A couple of small build fixes here, nothing major. The missing include is triggered in some configurations and the renaming of ret is defensive for the benefit of some drivers people are in the process of mainlining" * tag 'regmap-fix-v4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: regmap: Rename ret variable in regmap_read_poll_timeout regmap: include <linux/delay.h> from include/linux/regmap.h
2016-10-30aio: fix freeze protection of aio writesJan Kara1-0/+1
Currently we dropped freeze protection of aio writes just after IO was submitted. Thus aio write could be in flight while the filesystem was frozen and that could result in unexpected situation like aio completion wanting to convert extent type on frozen filesystem. Testcase from Dmitry triggering this is like: for ((i=0;i<60;i++));do fsfreeze -f /mnt ;sleep 1;fsfreeze -u /mnt;done & fio --bs=4k --ioengine=libaio --iodepth=128 --size=1g --direct=1 \ --runtime=60 --filename=/mnt/file --name=rand-write --rw=randwrite Fix the problem by dropping freeze protection only once IO is completed in aio_complete(). Reported-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Jan Kara <jack@suse.cz> [hch: forward ported on top of various VFS and aio changes] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-10-30fs: remove the never implemented aio_fsync file operationChristoph Hellwig1-1/+0
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-10-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds21-52/+134
Pull networking fixes from David Miller: "Lots of fixes, mostly drivers as is usually the case. 1) Don't treat zero DMA address as invalid in vmxnet3, from Alexey Khoroshilov. 2) Fix element timeouts in netfilter's nft_dynset, from Anders K. Pedersen. 3) Don't put aead_req crypto struct on the stack in mac80211, from Ard Biesheuvel. 4) Several uninitialized variable warning fixes from Arnd Bergmann. 5) Fix memory leak in cxgb4, from Colin Ian King. 6) Fix bpf handling of VLAN header push/pop, from Daniel Borkmann. 7) Several VRF semantic fixes from David Ahern. 8) Set skb->protocol properly in ip6_tnl_xmit(), from Eli Cooper. 9) Socket needs to be locked in udp_disconnect(), from Eric Dumazet. 10) Div-by-zero on 32-bit fix in mlx4 driver, from Eugenia Emantayev. 11) Fix stale link state during failover in NCSCI driver, from Gavin Shan. 12) Fix netdev lower adjacency list traversal, from Ido Schimmel. 13) Propvide proper handle when emitting notifications of filter deletes, from Jamal Hadi Salim. 14) Memory leaks and big-endian issues in rtl8xxxu, from Jes Sorensen. 15) Fix DESYNC_FACTOR handling in ipv6, from Jiri Bohac. 16) Several routing offload fixes in mlxsw driver, from Jiri Pirko. 17) Fix broadcast sync problem in TIPC, from Jon Paul Maloy. 18) Validate chunk len before using it in SCTP, from Marcelo Ricardo Leitner. 19) Revert a netns locking change that causes regressions, from Paul Moore. 20) Add recursion limit to GRO handling, from Sabrina Dubroca. 21) GFP_KERNEL in irq context fix in ibmvnic, from Thomas Falcon. 22) Avoid accessing stale vxlan/geneve socket in data path, from Pravin Shelar" * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (189 commits) geneve: avoid using stale geneve socket. vxlan: avoid using stale vxlan socket. qede: Fix out-of-bound fastpath memory access net: phy: dp83848: add dp83822 PHY support enic: fix rq disable tipc: fix broadcast link synchronization problem ibmvnic: Fix missing brackets in init_sub_crq_irqs ibmvnic: Fix releasing of sub-CRQ IRQs in interrupt context Revert "ibmvnic: Fix releasing of sub-CRQ IRQs in interrupt context" arch/powerpc: Update parameters for csum_tcpudp_magic & csum_tcpudp_nofold net/mlx4_en: Save slave ethtool stats command net/mlx4_en: Fix potential deadlock in port statistics flow net/mlx4: Fix firmware command timeout during interrupt test net/mlx4_core: Do not access comm channel if it has not yet been initialized net/mlx4_en: Fix panic during reboot net/mlx4_en: Process all completions in RX rings after port goes up net/mlx4_en: Resolve dividing by zero in 32-bit system net/mlx4_core: Change the default value of enable_qos net/mlx4_core: Avoid setting ports to auto when only one port type is supported net/mlx4_core: Fix the resource-type enum in res tracker to conform to FW spec ...
2016-10-29vxlan: avoid using stale vxlan socket.pravin shelar1-2/+2
When vxlan device is closed vxlan socket is freed. This operation can race with vxlan-xmit function which dereferences vxlan socket. Following patch uses RCU mechanism to avoid this situation. Signed-off-by: Pravin B Shelar <pshelar@ovn.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-29net/mlx4: Fix firmware command timeout during interrupt testEugenia Emantayev1-1/+2
Currently interrupt test that is part of ethtool selftest runs the check over all interrupt vectors of the device. In mlx4_en package part of interrupt vectors are uninitialized since mlx4_ib doesn't exist. This causes NOP FW command to time out. Change logic to test current port interrupt vectors only. Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-29Merge tag 'mac80211-for-davem-2016-10-27' of ↵David S. Miller1-8/+13
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== Just two fixes: * a fix to process all events while suspending, so any potential calls into the driver are done before it is suspended * small markup fixes for the sphinx documentation conversion that's coming into the tree via the doc tree ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-29Revert "hv_netvsc: report vmbus name in ethtool"Stephen Hemminger1-7/+0
This reverts commit e3f74b841d48 ("hv_netvsc: report vmbus name in ethtool")' because of problem introduced by commit f9a56e5d6a0ba ("Drivers: hv: make VMBus bus ids persistent"). This changed the format of the vmbus name and this new format is too long to fit in the bus_info field of ethtool. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-29Merge remote-tracking branches 'regmap/fix/header' and 'regmap/fix/macro' ↵Mark Brown1-5/+6
into regmap-linus
2016-10-29net/mlx5: PCI error recovery health care simulationMohamad Haj Yahia1-0/+1
In case that the kernel PCI error handlers are not called, we will trigger our own recovery flow. The health work will give priority to the kernel pci error handlers to recover the PCI by waiting for a small period, if the pci error handlers are not triggered the manual recovery flow will be executed. We don't save pci state in case of manual recovery because it will ruin the pci configuration space and we will lose dma sync. Fixes: 89d44f0a6c73 ('net/mlx5_core: Add pci error handlers to mlx5_core driver') Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-29net/mlx5: Fix race between PCI error handlers and health workMohamad Haj Yahia1-0/+4
Currently there is a race between the health care work and the kernel pci error handlers because both of them detect the error, the first one to be called will do the error handling. There is a chance that health care will disable the pci after resuming pci slot. Also create a separate WQ because now we will have two types of health works, one for the error detection and one for the recovery. Fixes: 89d44f0a6c73 ('net/mlx5_core: Add pci error handlers to mlx5_core driver') Signed-off-by: Mohamad Haj Yahia <mohamad@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-29{net, ib}/mlx5: Make cache line size determination at runtime.Daniel Jurgens1-11/+0
ARM 64B cache line systems have L1_CACHE_BYTES set to 128. cache_line_size() will return the correct size. Fixes: cf50b5efa2fe('net/mlx5_core/ib: New device capabilities handling.') Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-28Merge tag 'acpi-4.9-rc3' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull ACPI fixes from Rafael Wysocki: "These fix recent ACPICA regressions, an older PCI IRQ management regression, and an incorrect return value of a function in the APEI code. Specifics: - Fix three ACPICA issues related to the interpreter locking and introduced by recent changes in that area (Lv Zheng). - Fix a PCI IRQ management regression introduced during the 4.7 cycle and related to the configuration of shared IRQs on systems with an ISA bus (Sinan Kaya). - Fix up a return value of one function in the APEI code (Punit Agrawal)" * tag 'acpi-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPICA: Dispatcher: Fix interpreter locking around acpi_ev_initialize_region() ACPICA: Dispatcher: Fix an unbalanced lock exit path in acpi_ds_auto_serialize_method() ACPICA: Dispatcher: Fix order issue of method termination ACPI / APEI: Fix incorrect return value of ghes_proc() ACPI/PCI: pci_link: Include PIRQ_PENALTY_PCI_USING for ISA IRQs ACPI/PCI: pci_link: penalize SCI correctly ACPI/PCI/IRQ: assign ISA IRQ directly during early boot stages
2016-10-28Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf fixes from Ingo Molnar: "Misc kernel fixes: a virtualization environment related fix, an uncore PMU driver removal handling fix, a PowerPC fix and new events for Knights Landing" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Honour the CPUID for number of fixed counters in hypervisors perf/powerpc: Don't call perf_event_disable() from atomic context perf/core: Protect PMU device removal with a 'pmu_bus_running' check, to fix CONFIG_DEBUG_TEST_DRIVER_REMOVE=y kernel panic perf/x86/intel/cstate: Add C-state residency events for Knights Landing
2016-10-28regmap: Rename ret variable in regmap_read_poll_timeoutCharles Keepax1-5/+5
As almost all of the callers of the regmap_read_poll_timeout macro will include a local ret variable we will always get a Sparse warning about the duplication of the ret variable: warning: symbol 'ret' shadows an earlier one Simply rename the ret variable in the marco to pollret to make this significantly less likely to happen. Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-10-28Merge tag 'drm-x86-pat-regression-fix' of ↵Linus Torvalds1-0/+22
git://people.freedesktop.org/~airlied/linux Pull drm x86/pat regression fixes from Dave Airlie: "This is a standalone pull request for the fix for a regression introduced in -rc1 by a change to vm_insert_mixed to start using the PAT range tracking to validate page protections. With this fix in place, all the VRAM mappings for GPU drivers ended up at UC instead of WC. There are probably better ways to fix this long term, but nothing I'd considered for -fixes that wouldn't need more settling in time. So I've just created a new arch API that the drivers can reserve all their VRAM aperture ranges as WC" * tag 'drm-x86-pat-regression-fix' of git://people.freedesktop.org/~airlied/linux: drm/drivers: add support for using the arch wc mapping API. x86/io: add interface to reserve io memtype for a resource range. (v1.1)
2016-10-28perf/powerpc: Don't call perf_event_disable() from atomic contextJiri Olsa1-0/+1
The trinity syscall fuzzer triggered following WARN() on powerpc: WARNING: CPU: 9 PID: 2998 at arch/powerpc/kernel/hw_breakpoint.c:278 ... NIP [c00000000093aedc] .hw_breakpoint_handler+0x28c/0x2b0 LR [c00000000093aed8] .hw_breakpoint_handler+0x288/0x2b0 Call Trace: [c0000002f7933580] [c00000000093aed8] .hw_breakpoint_handler+0x288/0x2b0 (unreliable) [c0000002f7933630] [c0000000000f671c] .notifier_call_chain+0x7c/0xf0 [c0000002f79336d0] [c0000000000f6abc] .__atomic_notifier_call_chain+0xbc/0x1c0 [c0000002f7933780] [c0000000000f6c40] .notify_die+0x70/0xd0 [c0000002f7933820] [c00000000001a74c] .do_break+0x4c/0x100 [c0000002f7933920] [c0000000000089fc] handle_dabr_fault+0x14/0x48 Followed by a lockdep warning: =============================== [ INFO: suspicious RCU usage. ] 4.8.0-rc5+ #7 Tainted: G W ------------------------------- ./include/linux/rcupdate.h:556 Illegal context switch in RCU read-side critical section! other info that might help us debug this: rcu_scheduler_active = 1, debug_locks = 0 2 locks held by ls/2998: #0: (rcu_read_lock){......}, at: [<c0000000000f6a00>] .__atomic_notifier_call_chain+0x0/0x1c0 #1: (rcu_read_lock){......}, at: [<c00000000093ac50>] .hw_breakpoint_handler+0x0/0x2b0 stack backtrace: CPU: 9 PID: 2998 Comm: ls Tainted: G W 4.8.0-rc5+ #7 Call Trace: [c0000002f7933150] [c00000000094b1f8] .dump_stack+0xe0/0x14c (unreliable) [c0000002f79331e0] [c00000000013c468] .lockdep_rcu_suspicious+0x138/0x180 [c0000002f7933270] [c0000000001005d8] .___might_sleep+0x278/0x2e0 [c0000002f7933300] [c000000000935584] .mutex_lock_nested+0x64/0x5a0 [c0000002f7933410] [c00000000023084c] .perf_event_ctx_lock_nested+0x16c/0x380 [c0000002f7933500] [c000000000230a80] .perf_event_disable+0x20/0x60 [c0000002f7933580] [c00000000093aeec] .hw_breakpoint_handler+0x29c/0x2b0 [c0000002f7933630] [c0000000000f671c] .notifier_call_chain+0x7c/0xf0 [c0000002f79336d0] [c0000000000f6abc] .__atomic_notifier_call_chain+0xbc/0x1c0 [c0000002f7933780] [c0000000000f6c40] .notify_die+0x70/0xd0 [c0000002f7933820] [c00000000001a74c] .do_break+0x4c/0x100 [c0000002f7933920] [c0000000000089fc] handle_dabr_fault+0x14/0x48 While it looks like the first WARN() is probably valid, the other one is triggered by disabling event via perf_event_disable() from atomic context. The event is disabled here in case we were not able to emulate the instruction that hit the breakpoint. By disabling the event we unschedule the event and make sure it's not scheduled back. But we can't call perf_event_disable() from atomic context, instead we need to use the event's pending_disable irq_work method to disable it. Reported-by: Jan Stancek <jstancek@redhat.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Huang Ying <ying.huang@intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michael Neuling <mikey@neuling.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20161026094824.GA21397@krava Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-10-28mtd: nand: Fix data interface configuration logicBoris Brezillon1-1/+1
When changing from one data interface setting to another, one has to ensure a specific sequence which is described in the ONFI spec. One of these constraints is that the CE line has go high after a reset before a command can be sent with the new data interface setting, which is not guaranteed by the current implementation. Rework the nand_reset() function and all the call sites to make sure the CE line is asserted and released when required. Also make sure to actually apply the new data interface setting on the first die. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Fixes: d8e725dd8311 ("mtd: nand: automate NAND timings selection") Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: Marc Gonzalez <marc_gonzalez@sigmadesigns.com>
2016-10-27Merge branch 'akpm' (patches from Andrew)Linus Torvalds2-4/+3
Merge misc fixes from Andrew Morton: "20 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: drivers/misc/sgi-gru/grumain.c: remove bogus 0x prefix from printk cris/arch-v32: cryptocop: print a hex number after a 0x prefix ipack: print a hex number after a 0x prefix block: DAC960: print a hex number after a 0x prefix fs: exofs: print a hex number after a 0x prefix lib/genalloc.c: start search from start of chunk mm: memcontrol: do not recurse in direct reclaim CREDITS: update credit information for Martin Kepplinger proc: fix NULL dereference when reading /proc/<pid>/auxv mm: kmemleak: ensure that the task stack is not freed during scanning lib/stackdepot.c: bump stackdepot capacity from 16MB to 128MB latent_entropy: raise CONFIG_FRAME_WARN by default kconfig.h: remove config_enabled() macro ipc: account for kmem usage on mqueue and msg mm/slab: improve performance of gathering slabinfo stats mm: page_alloc: use KERN_CONT where appropriate mm/list_lru.c: avoid error-path NULL pointer deref h8300: fix syscall restarting kcov: properly check if we are in an interrupt mm/slab: fix kmemcg cache creation delayed issue
2016-10-27kconfig.h: remove config_enabled() macroMasahiro Yamada2-4/+3
The use of config_enabled() is ambiguous. For config options, IS_ENABLED(), IS_REACHABLE(), etc. will make intention clearer. Sometimes config_enabled() has been used for non-config options because it is useful to check whether the given symbol is defined or not. I have been tackling on deprecating config_enabled(), and now is the time to finish this work. Some new users have appeared for v4.9-rc1, but it is trivial to replace them: - arch/x86/mm/kaslr.c replace config_enabled() with IS_ENABLED() because CONFIG_X86_ESPFIX64 and CONFIG_EFI are boolean. - include/asm-generic/export.h replace config_enabled() with __is_defined(). Then, config_enabled() can be removed now. Going forward, please use IS_ENABLED(), IS_REACHABLE(), etc. for config options, and __is_defined() for non-config symbols. Link: http://lkml.kernel.org/r/1476616078-32252-1-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: Peter Oberparleiter <oberpar@linux.vnet.ibm.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Kees Cook <keescook@chromium.org> Cc: Michal Marek <mmarek@suse.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Garnier <thgarnie@google.com> Cc: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-27net: ipv6: Do not consider link state for nexthop validationDavid Ahern1-0/+1
Similar to IPv4, do not consider link state when validating next hops. Currently, if the link is down default routes can fail to insert: $ ip -6 ro add vrf blue default via 2100:2::64 dev eth2 RTNETLINK answers: No route to host With this patch the command succeeds. Fixes: 8c14586fc320 ("net: ipv6: Use passed in table for nexthop lookups") Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-27net: ipv6: Fix processing of RAs in presence of VRFDavid Ahern1-0/+2
rt6_add_route_info and rt6_add_dflt_router were updated to pull the FIB table from the device index, but the corresponding rt6_get_route_info and rt6_get_dflt_router functions were not leading to the failure to process RA's: ICMPv6: RA: ndisc_router_discovery failed to add default route Fix the 'get' functions by using the table id associated with the device when applicable. Also, now that default routes can be added to tables other than the default table, rt6_purge_dflt_routers needs to be updated as well to look at all tables. To handle that efficiently, add a flag to the table denoting if it is has a default route via RA. Fixes: ca254490c8dfd ("net: Add VRF support to IPv6 stack") Signed-off-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-27Merge tag 'xfs-fixes-for-linus-4.9-rc3' of ↵Linus Torvalds1-6/+11
git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs Pull xfs fixes from Dave Chinner: "This update contains fixes for most of the outstanding regressions introduced with the 4.9-rc1 XFS merge. There is also a fix for an iomap bug, too. This is a quite a bit larger than I'd prefer for a -rc3, but most of the change comes from cleaning up the new reflink copy on write code; it's much simpler and easier to understand now. These changes fixed several bugs in the new code, and it wasn't clear that there was an easier/simpler way to fix them. The rest of the fixes are the usual size you'd expect at this stage. I've left the commits to soak in linux-next for a some extra time because of the size before asking you to pull, no new problems with them have been reported so I think it's all OK. Summary: - iomap page offset masking fix for page faults - add IOMAP_REPORT to distinguish between read and fiemap map requests - cleanups to new shared data extent code - fix mount active status on failed log recovery - fix broken dquots in a buffer calculation - fix locking order issues and merge xfs_reflink_remap_range and xfs_file_share_range - rework unmapping of CoW extents and remove now unused functions - clean state when CoW is done" * tag 'xfs-fixes-for-linus-4.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (25 commits) xfs: clear cowblocks tag when cow fork is emptied xfs: fix up inode cowblocks tracking tracepoints fs: Do to trim high file position bits in iomap_page_mkwrite_actor xfs: remove xfs_bunmapi_cow xfs: optimize xfs_reflink_end_cow xfs: optimize xfs_reflink_cancel_cow_blocks xfs: refactor xfs_bunmapi_cow xfs: optimize writes to reflink files xfs: don't bother looking at the refcount tree for reads xfs: handle "raw" delayed extents xfs_reflink_trim_around_shared xfs: add xfs_trim_extent iomap: add IOMAP_REPORT xfs: merge xfs_reflink_remap_range and xfs_file_share_range xfs: remove xfs_file_wait_for_io xfs: move inode locking from xfs_reflink_remap_range to xfs_file_share_range xfs: fix the same_inode check in xfs_file_share_range xfs: remove the same fs check from xfs_file_share_range libxfs: v3 inodes are only valid on crc-enabled filesystems libxfs: clean up _calc_dquots_per_chunk xfs: unset MS_ACTIVE if mount fails ...
2016-10-27mm: remove per-zone hashtable of bitlock waitqueuesLinus Torvalds1-28/+2
The per-zone waitqueues exist because of a scalability issue with the page waitqueues on some NUMA machines, but it turns out that they hurt normal loads, and now with the vmalloced stacks they also end up breaking gfs2 that uses a bit_wait on a stack object: wait_on_bit(&gh->gh_iflags, HIF_WAIT, TASK_UNINTERRUPTIBLE) where 'gh' can be a reference to the local variable 'mount_gh' on the stack of fill_super(). The reason the per-zone hash table breaks for this case is that there is no "zone" for virtual allocations, and trying to look up the physical page to get at it will fail (with a BUG_ON()). It turns out that I actually complained to the mm people about the per-zone hash table for another reason just a month ago: the zone lookup also hurts the regular use of "unlock_page()" a lot, because the zone lookup ends up forcing several unnecessary cache misses and generates horrible code. As part of that earlier discussion, we had a much better solution for the NUMA scalability issue - by just making the page lock have a separate contention bit, the waitqueue doesn't even have to be looked at for the normal case. Peter Zijlstra already has a patch for that, but let's see if anybody even notices. In the meantime, let's fix the actual gfs2 breakage by simplifying the bitlock waitqueues and removing the per-zone issue. Reported-by: Andreas Gruenbacher <agruenba@redhat.com> Tested-by: Bob Peterson <rpeterso@redhat.com> Acked-by: Mel Gorman <mgorman@techsingularity.net> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-10-26udp: fix IP_CHECKSUM handlingEric Dumazet1-2/+2
First bug was added in commit ad6f939ab193 ("ip: Add offset parameter to ip_cmsg_recv") : Tom missed that ipv4 udp messages could be received on AF_INET6 socket. ip_cmsg_recv(msg, skb) should have been replaced by ip_cmsg_recv_offset(msg, skb, sizeof(struct udphdr)); Then commit e6afc8ace6dd ("udp: remove headers from UDP packets before queueing") forgot to adjust the offsets now UDP headers are pulled before skb are put in receive queue. Fixes: ad6f939ab193 ("ip: Add offset parameter to ip_cmsg_recv") Fixes: e6afc8ace6dd ("udp: remove headers from UDP packets before queueing") Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Sam Kumar <samanthakumar@google.com> Cc: Willem de Bruijn <willemb@google.com> Tested-by: Willem de Bruijn <willemb@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-26doc: update docbook annotations for socket and skbStephen Hemminger2-1/+4
The skbuff and sock structure both had missing parameter annotation values. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-10-26drm: Don't force all planes to be added to the state due to zposVille Syrjälä1-1/+7
We don't want all planes to be added to the state whenever a plane with fixed zpos gets enabled/disabled. This is true especially for eg. cursor planes on i915, as we want cursor updates to go through w/o throttling. Same holds for drivers that don't support zpos at all (i915 actually falls into this category right now since we've not yet added zpos support). Allow drivers more freedom by letting them deal with zpos themselves instead of doing it in drm_atomic_helper_check_planes() unconditionally. Let's just inline the required calls into all the driver that currently depend on this. v2: Inline the stuff into the drivers instead of adding another helper, document things better (Daniel) Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org> Cc: Vincent Abriou <vincent.abriou@st.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Inki Dae <inki.dae@samsung.com> Cc: Joonyoung Shim <jy0922.shim@samsung.com> Cc: Seung-Woo Kim <sw0312.kim@samsung.com> Cc: Kyungmin Park <kyungmin.park@samsung.com> Cc: Lyude <cpaul@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: stable@vger.kernel.org Fixes: 44d1240d006c ("drm: add generic zpos property") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1476111056-12734-1-git-send-email-ville.syrjala@linux.intel.com
2016-10-26mac80211: fix some sphinx warningsJani Nikula1-8/+13
Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2016-10-26x86/io: add interface to reserve io memtype for a resource range. (v1.1)Dave Airlie1-0/+22
A recent change to the mm code in: 87744ab3832b mm: fix cache mode tracking in vm_insert_mixed() started enforcing checking the memory type against the registered list for amixed pfn insertion mappings. It happens that the drm drivers for a number of gpus relied on this being broken. Currently the driver only inserted VRAM mappings into the tracking table when they came from the kernel, and userspace mappings never landed in the table. This led to a regression where all the mapping end up as UC instead of WC now. I've considered a number of solutions but since this needs to be fixed in fixes and not next, and some of the solutions were going to introduce overhead that hadn't been there before I didn't consider them viable at this stage. These mainly concerned hooking into the TTM io reserve APIs, but these API have a bunch of fast paths I didn't want to unwind to add this to. The solution I've decided on is to add a new API like the arch_phys_wc APIs (these would have worked but wc_del didn't take a range), and use them from the drivers to add a WC compatible mapping to the table for all VRAM on those GPUs. This means we can then create userspace mapping that won't get degraded to UC. v1.1: use CONFIG_X86_PAT + add some comments in io.h Cc: Toshi Kani <toshi.kani@hp.com> Cc: Borislav Petkov <bp@alien8.de> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Brian Gerst <brgerst@gmail.com> Cc: x86@kernel.org Cc: mcgrof@suse.com Cc: Dan Williams <dan.j.williams@intel.com> Acked-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-10-24Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "This is the first batch of clk driver fixes for this release. We have a handful of fixes for the uniphier clk driver that was introduced recently, as well as Kconfig option hiding, module autoloading markings, and a few fixes for clk_hw based registration patches that went in this merge window" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: at91: Fix a return value in case of error clk: uniphier: rename MIO clock to SD clock for Pro5, PXs2, LD20 SoCs clk: uniphier: fix memory overrun bug clk: hi6220: use CLK_OF_DECLARE_DRIVER for sysctrl and mediactrl clock init clk: mvebu: armada-37xx-periph: Fix the clock gate flag clk: bcm2835: Clamp the PLL's requested rate to the hardware limits. clk: max77686: fix number of clocks setup for clk_hw based registration clk: mvebu: armada-37xx-periph: Fix the clock provider registration clk: core: add __init decoration for CLK_OF_DECLARE_DRIVER function clk: mediatek: Add hardware dependency clk: samsung: clk-exynos-audss: Fix module autoload clk: uniphier: fix type of variable passed to regmap_read() clk: uniphier: add system clock support for sLD3 SoC