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2018-12-06ALSA: aoa: Use of_node_name_eq for node name comparisonsRob Herring
Convert string compares of DT node names to use of_node_name_eq helper instead. This removes direct access to the node name pointer. A couple of open coded iterating thru the child node names are converted to use for_each_child_of_node() instead. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-12-06ALSA: aoa: Remove direct OF name and type accessesRob Herring
Convert soundbus uevent and sysfs OF node name and device type usage to use printf specifier and helper functions instead of directly accessing the name and type pointers. This will allow the eventual removal of the pointers. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2018-12-06cifs: Fix separator when building path from dentryPaulo Alcantara
Make sure to use the CIFS_DIR_SEP(cifs_sb) as path separator for prefixpath too. Fixes a bug with smb1 UNIX extensions. Fixes: a6b5058fafdf ("fs/cifs: make share unaccessible at root level mountable") Signed-off-by: Paulo Alcantara <palcantara@suse.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com> CC: Stable <stable@vger.kernel.org>
2018-12-06cifs: In Kconfig CONFIG_CIFS_POSIX needs depends on legacy (insecure cifs)Steve French
Missing a dependency. Shouldn't show cifs posix extensions in Kconfig if CONFIG_CIFS_ALLOW_INSECURE_DIALECTS (ie SMB1 protocol) is disabled. Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
2018-12-06ARM: dts: imx7d-nitrogen7: Fix the description of the Wifi clockFabio Estevam
According to bindings/regulator/fixed-regulator.txt the 'clocks' and 'clock-names' properties are not valid ones. In order to turn on the Wifi clock the correct location for describing the CLKO2 clock is via a mmc-pwrseq handle, so do it accordingly. Fixes: 56354959cfec ("ARM: dts: imx: add Boundary Devices Nitrogen7 board") Signed-off-by: Fabio Estevam <festevam@gmail.com> Acked-by: Troy Kisky <troy.kisky@boundarydevices.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-12-06powerpc/boot: Fix build failures with -j 1Michael Ellerman
In commit 5e9dcb6188a4 ("powerpc/boot: Expose Kconfig symbols to wrapper") we added a dependency to serial.c on autoconf.h: $(obj)/serial.c: $(obj)/autoconf.h This works when building in-tree (ie. with KBUILD_OUTPUT unset) because the obj tree is the src tree. But when building with eg. O=build and -j 1 the build fails: gcc ... -I../arch/powerpc/boot -c -o arch/powerpc/boot/serial.o arch/powerpc/boot/serial.c gcc: error: arch/powerpc/boot/serial.c: No such file or directory Why this is only happening with -j 1 is not clear, when building with -j greater than 1 somehow we decide to look for serial.c in the src tree (../), eg: gcc -I../arch/powerpc/boot -c -o arch/powerpc/boot/serial.o ../arch/powerpc/boot/serial.c Regardless we shouldn't be specifying a dependency on serial.c in the build tree, we want to add a dependency to the version in $(srctree) so fix the rule to say that. Fixes: 5e9dcb6188a4 ("powerpc/boot: Expose Kconfig symbols to wrapper") Tested-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-12-05ipv4: ipv6: netfilter: Adjust the frag mem limit when truesize changesJiri Wiesner
The *_frag_reasm() functions are susceptible to miscalculating the byte count of packet fragments in case the truesize of a head buffer changes. The truesize member may be changed by the call to skb_unclone(), leaving the fragment memory limit counter unbalanced even if all fragments are processed. This miscalculation goes unnoticed as long as the network namespace which holds the counter is not destroyed. Should an attempt be made to destroy a network namespace that holds an unbalanced fragment memory limit counter the cleanup of the namespace never finishes. The thread handling the cleanup gets stuck in inet_frags_exit_net() waiting for the percpu counter to reach zero. The thread is usually in running state with a stacktrace similar to: PID: 1073 TASK: ffff880626711440 CPU: 1 COMMAND: "kworker/u48:4" #5 [ffff880621563d48] _raw_spin_lock at ffffffff815f5480 #6 [ffff880621563d48] inet_evict_bucket at ffffffff8158020b #7 [ffff880621563d80] inet_frags_exit_net at ffffffff8158051c #8 [ffff880621563db0] ops_exit_list at ffffffff814f5856 #9 [ffff880621563dd8] cleanup_net at ffffffff814f67c0 #10 [ffff880621563e38] process_one_work at ffffffff81096f14 It is not possible to create new network namespaces, and processes that call unshare() end up being stuck in uninterruptible sleep state waiting to acquire the net_mutex. The bug was observed in the IPv6 netfilter code by Per Sundstrom. I thank him for his analysis of the problem. The parts of this patch that apply to IPv4 and IPv6 fragment reassembly are preemptive measures. Signed-off-by: Jiri Wiesner <jwiesner@suse.com> Reported-by: Per Sundstrom <per.sundstrom@redqube.se> Acked-by: Peter Oskolkov <posk@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-05sctp: frag_point sanity checkJakub Audykowicz
If for some reason an association's fragmentation point is zero, sctp_datamsg_from_user will try to endlessly try to divide a message into zero-sized chunks. This eventually causes kernel panic due to running out of memory. Although this situation is quite unlikely, it has occurred before as reported. I propose to add this simple last-ditch sanity check due to the severity of the potential consequences. Signed-off-by: Jakub Audykowicz <jakub.audykowicz@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-06drm/ast: Fix connector leak during driver unloadSam Bobroff
When unloading the ast driver, a warning message is printed by drm_mode_config_cleanup() because a reference is still held to one of the drm_connector structs. Correct this by calling drm_crtc_force_disable_all() in ast_fbdev_destroy(). Signed-off-by: Sam Bobroff <sbobroff@linux.ibm.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/1e613f3c630c7bbc72e04a44b178259b9164d2f6.1543798395.git.sbobroff@linux.ibm.com
2018-12-06Merge tag 'drm-misc-fixes-2018-12-05' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-misc into drm-fixes UAPI: - Distinguish lease events from hotplug (Daniel) Other: - omap: Restore panel-dpi bus flags (Tomi) - omap: Fix a couple of dsi issues (Sebastian) Cc: Sebastian Reichel <sebastian.reichel@collabora.com> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com> From: Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20181205201428.GA35447@art_vandelay
2018-12-06Merge branch 'drm-fixes-4.20' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes Fixes for 4.20: - Fix banding regression on 6 bpc panels - Vega20 fix for six 4k displays - Fix LRU handling in ttm_buffer_object_transfer - Use proper MC firmware for newer polaris variants - Vega20 powerplay fixes - VCN suspend/resume fix for PCO - Misc other fixes Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181205192934.2857-1-alexander.deucher@amd.com
2018-12-06Merge tag 'msm-fixes-2018-12-04' of ↵Dave Airlie
https://gitlab.freedesktop.org/seanpaul/dpu-staging into drm-fixes - Several related to incorrect error checking/handling (Various) - Prevent IRQ storm on MDP5 HDMI hotplug (Todor) - Don't capture crash state if unsupported (Sharat) - Properly grab vblank reference in atomic wait for commit done (Sean) Cc: Sharat Masetty <smasetty@codeaurora.org> Cc: Todor Tomov <todor.tomov@linaro.org> Cc: Sean Paul <seanpaul@chromium.org> Signed-off-by: Dave Airlie <airlied@redhat.com> From: Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20181205194207.GY154160@art_vandelay
2018-12-05Uprobes: Fix kernel oops with delayed_uprobe_remove()Ravi Bangoria
There could be a race between task exit and probe unregister: exit_mm() mmput() __mmput() uprobe_unregister() uprobe_clear_state() put_uprobe() delayed_uprobe_remove() delayed_uprobe_remove() put_uprobe() is calling delayed_uprobe_remove() without taking delayed_uprobe_lock and thus the race sometimes results in a kernel crash. Fix this by taking delayed_uprobe_lock before calling delayed_uprobe_remove() from put_uprobe(). Detailed crash log can be found at: Link: http://lkml.kernel.org/r/000000000000140c370577db5ece@google.com Link: http://lkml.kernel.org/r/20181205033423.26242-1-ravi.bangoria@linux.ibm.com Acked-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Reported-by: syzbot+cb1fb754b771caca0a88@syzkaller.appspotmail.com Fixes: 1cc33161a83d ("uprobes: Support SDT markers having reference count (semaphore)") Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2018-12-06Merge tag 'vmwgfx-next-2018-12-05' of ↵Dave Airlie
git://people.freedesktop.org/~thomash/linux into drm-next Pull request of 2018-12-05 Page flip with damage by Deepak and others, Various vmwgfx minor fixes anc cleanups. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Hellstrom <thellstrom@vmware.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181205103554.3675-1-thellstrom@vmware.com
2018-12-05stackleak: Mark stackleak_track_stack() as notraceAnders Roxell
Function graph tracing recurses into itself when stackleak is enabled, causing the ftrace graph selftest to run for up to 90 seconds and trigger the softlockup watchdog. Breakpoint 2, ftrace_graph_caller () at ../arch/arm64/kernel/entry-ftrace.S:200 200 mcount_get_lr_addr x0 // pointer to function's saved lr (gdb) bt \#0 ftrace_graph_caller () at ../arch/arm64/kernel/entry-ftrace.S:200 \#1 0xffffff80081d5280 in ftrace_caller () at ../arch/arm64/kernel/entry-ftrace.S:153 \#2 0xffffff8008555484 in stackleak_track_stack () at ../kernel/stackleak.c:106 \#3 0xffffff8008421ff8 in ftrace_ops_test (ops=0xffffff8009eaa840 <graph_ops>, ip=18446743524091297036, regs=<optimized out>) at ../kernel/trace/ftrace.c:1507 \#4 0xffffff8008428770 in __ftrace_ops_list_func (regs=<optimized out>, ignored=<optimized out>, parent_ip=<optimized out>, ip=<optimized out>) at ../kernel/trace/ftrace.c:6286 \#5 ftrace_ops_no_ops (ip=18446743524091297036, parent_ip=18446743524091242824) at ../kernel/trace/ftrace.c:6321 \#6 0xffffff80081d5280 in ftrace_caller () at ../arch/arm64/kernel/entry-ftrace.S:153 \#7 0xffffff800832fd10 in irq_find_mapping (domain=0xffffffc03fc4bc80, hwirq=27) at ../kernel/irq/irqdomain.c:876 \#8 0xffffff800832294c in __handle_domain_irq (domain=0xffffffc03fc4bc80, hwirq=27, lookup=true, regs=0xffffff800814b840) at ../kernel/irq/irqdesc.c:650 \#9 0xffffff80081d52b4 in ftrace_graph_caller () at ../arch/arm64/kernel/entry-ftrace.S:205 Rework so we mark stackleak_track_stack as notrace Co-developed-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Anders Roxell <anders.roxell@linaro.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Kees Cook <keescook@chromium.org>
2018-12-06Merge tag 'exynos-drm-next-for-v4.21' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next - Refactoring of DMA and IOMMU code . This patch series simplifies DMA mapping creation by avoiding looping all components to get dma device object, reduces code size by merging IOMMU and DMA code. - Enhance plane alpha and blend mode support . This patch series adds configurable plane and pixel blend mode support for Exynos5433 DECON device. - Fix color format setting of Mixer driver . This patch series fixes color format and range setting by splitting range and format. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Inki Dae <inki.dae@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/1544002853-11661-1-git-send-email-inki.dae@samsung.com
2018-12-06Merge branch 'drm-next-4.21' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-next amdgpu and amdkfd: - Freesync support - ABM support in DC - KFD support for vega12 and polaris12 - Add sdma paging queue support for vega - Use ACPI to query backlight range on supported platforms - Clean up doorbell handling - KFD fix for pasid handling under non-HWS - Misc cleanups and fixes scheduler: - Revert "fix timeout handling v2" radeon: - Fix possible overflow on 32 bit ttm: - Fix for LRU handling for ghost objects Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20181130192505.2946-1-alexander.deucher@amd.com
2018-12-06ARM: imx: update the cpu power up timing setting on i.mx6sxAnson Huang
The sw2iso count should cover ARM LDO ramp-up time, the MAX ARM LDO ramp-up time may be up to more than 100us on some boards, this patch sets sw2iso to 0xf (~384us) which is the reset value, and it is much more safe to cover different boards, since we have observed that some customer boards failed with current setting of 0x2. Fixes: 05136f0897b5 ("ARM: imx: support arm power off in cpuidle for i.mx6sx") Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2018-12-05Merge tag 'scsi-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Four obvious bug fixes. The vmw_pscsi is so old that it's amazing no-one noticed before now" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: storvsc: Fix a race in sub-channel creation that can cause panic scsi: vmw_pscsi: Rearrange code to avoid multiple calls to free_irq during unload scsi: libiscsi: Fix NULL pointer dereference in iscsi_eh_session_reset scsi: lpfc: fix block guard enablement on SLI3 adapters
2018-12-05tcp: fix NULL ref in tail loss probeYuchung Cheng
TCP loss probe timer may fire when the retranmission queue is empty but has a non-zero tp->packets_out counter. tcp_send_loss_probe will call tcp_rearm_rto which triggers NULL pointer reference by fetching the retranmission queue head in its sub-routines. Add a more detailed warning to help catch the root cause of the inflight accounting inconsistency. Reported-by: Rafael Tinoco <rafael.tinoco@linaro.org> Signed-off-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-05tcp: Do not underestimate rwnd_limitedEric Dumazet
If available rwnd is too small, tcp_tso_should_defer() can decide it is worth waiting before splitting a TSO packet. This really means we are rwnd limited. Fixes: 5615f88614a4 ("tcp: instrument how long TCP is limited by receive window") Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Soheil Hassas Yeganeh <soheil@google.com> Reviewed-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-05Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpfDavid S. Miller
Alexei Starovoitov says: ==================== pull-request: bpf 2018-12-05 The following pull-request contains BPF updates for your *net* tree. The main changes are: 1) fix bpf uapi pointers for 32-bit architectures, from Daniel. 2) improve verifer ability to handle progs with a lot of branches, from Alexei. 3) strict btf checks, from Yonghong. 4) bpf_sk_lookup api cleanup, from Joe. 5) other misc fixes ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-05net: use skb_list_del_init() to remove from RX sublistsEdward Cree
list_del() leaves the skb->next pointer poisoned, which can then lead to a crash in e.g. OVS forwarding. For example, setting up an OVS VXLAN forwarding bridge on sfc as per: ======== $ ovs-vsctl show 5dfd9c47-f04b-4aaa-aa96-4fbb0a522a30 Bridge "br0" Port "br0" Interface "br0" type: internal Port "enp6s0f0" Interface "enp6s0f0" Port "vxlan0" Interface "vxlan0" type: vxlan options: {key="1", local_ip="10.0.0.5", remote_ip="10.0.0.4"} ovs_version: "2.5.0" ======== (where 10.0.0.5 is an address on enp6s0f1) and sending traffic across it will lead to the following panic: ======== general protection fault: 0000 [#1] SMP PTI CPU: 5 PID: 0 Comm: swapper/5 Not tainted 4.20.0-rc3-ehc+ #701 Hardware name: Dell Inc. PowerEdge R710/0M233H, BIOS 6.4.0 07/23/2013 RIP: 0010:dev_hard_start_xmit+0x38/0x200 Code: 53 48 89 fb 48 83 ec 20 48 85 ff 48 89 54 24 08 48 89 4c 24 18 0f 84 ab 01 00 00 48 8d 86 90 00 00 00 48 89 f5 48 89 44 24 10 <4c> 8b 33 48 c7 03 00 00 00 00 48 8b 05 c7 d1 b3 00 4d 85 f6 0f 95 RSP: 0018:ffff888627b437e0 EFLAGS: 00010202 RAX: 0000000000000000 RBX: dead000000000100 RCX: ffff88862279c000 RDX: ffff888614a342c0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888618a88000 R08: 0000000000000001 R09: 00000000000003e8 R10: 0000000000000000 R11: ffff888614a34140 R12: 0000000000000000 R13: 0000000000000062 R14: dead000000000100 R15: ffff888616430000 FS: 0000000000000000(0000) GS:ffff888627b40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6d2bc6d000 CR3: 000000000200a000 CR4: 00000000000006e0 Call Trace: <IRQ> __dev_queue_xmit+0x623/0x870 ? masked_flow_lookup+0xf7/0x220 [openvswitch] ? ep_poll_callback+0x101/0x310 do_execute_actions+0xaba/0xaf0 [openvswitch] ? __wake_up_common+0x8a/0x150 ? __wake_up_common_lock+0x87/0xc0 ? queue_userspace_packet+0x31c/0x5b0 [openvswitch] ovs_execute_actions+0x47/0x120 [openvswitch] ovs_dp_process_packet+0x7d/0x110 [openvswitch] ovs_vport_receive+0x6e/0xd0 [openvswitch] ? dst_alloc+0x64/0x90 ? rt_dst_alloc+0x50/0xd0 ? ip_route_input_slow+0x19a/0x9a0 ? __udp_enqueue_schedule_skb+0x198/0x1b0 ? __udp4_lib_rcv+0x856/0xa30 ? __udp4_lib_rcv+0x856/0xa30 ? cpumask_next_and+0x19/0x20 ? find_busiest_group+0x12d/0xcd0 netdev_frame_hook+0xce/0x150 [openvswitch] __netif_receive_skb_core+0x205/0xae0 __netif_receive_skb_list_core+0x11e/0x220 netif_receive_skb_list+0x203/0x460 ? __efx_rx_packet+0x335/0x5e0 [sfc] efx_poll+0x182/0x320 [sfc] net_rx_action+0x294/0x3c0 __do_softirq+0xca/0x297 irq_exit+0xa6/0xb0 do_IRQ+0x54/0xd0 common_interrupt+0xf/0xf </IRQ> ======== So, in all listified-receive handling, instead pull skbs off the lists with skb_list_del_init(). Fixes: 9af86f933894 ("net: core: fix use-after-free in __netif_receive_skb_list_core") Fixes: 7da517a3bc52 ("net: core: Another step of skb receive list processing") Fixes: a4ca8b7df73c ("net: ipv4: fix drop handling in ip_list_rcv() and ip_list_rcv_finish()") Fixes: d8269e2cbf90 ("net: ipv6: listify ipv6_rcv() and ip6_rcv_finish()") Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-05clk: qcom: gcc-msm8998: Add clkref clocksBjorn Andersson
Add clkref clocks for usb3, hdmi, ufs, pcie, and usb2. They are all sourced off CXO_IN, so parent them off "xo" until a proper link to the rpmcc can be described in DT. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-05clk: qcom: gcc-msm8998: Disable halt check of UFS clocksBjorn Andersson
Drop the halt check of the UFS symbol clocks, in accordance with other platforms. This makes clk_disable_unused() happy and makes it possible to turn the clocks on again without an error. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-05clk: qcom: gcc-msm8998: Drop hmss_dvm and lpass_atBjorn Andersson
Disabling gcc_hmss_dvm_bus_clk and gcc_lpass_at_clk causes the board to lock up, and by that preventing the kernel to boot without clk_ignore_unused. gcc_hmss_dvm_bus_clk is marked always-on downstream, but not referenced, and gcc_lpass_at_clk isn't mentioned. So let's remove them until they are needed by some client. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-05clk: qcom: Enumerate remaining msm8998 resetsJeffrey Hugo
The current list of defined resets is incomplete compared to what the hardware implements. Enumerate the remaining resets according to the hardware documentation. Signed-off-by: Jeffrey Hugo <jhugo@codeaurora.org> Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-05Merge tag 'arc-4.20-rc6' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC fixes/updates from Vineet Gupta - Missing reads{x}()/writes{x}() getting in the way of some drivers [Jose Abreu] - Builds defaulting to ARCv2 ISA based configsa [Kevin Hilman] - Misc fixes * tag 'arc-4.20-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: ARC: io.h: Implement reads{x}()/writes{x}() ARC: change defconfig defaults to ARCv2 arc: [devboards] Add support of NFSv3 ACL ARC: mm: fix uninitialised signal code in do_page_fault ARC: [plat-hsdk] Enable DW APB GPIO support ARCv2: boot log unaligned access in use ARC: IOC: panic if kernel was started with previously enabled IOC ARC: remove redundant 'default n' from Kconfig
2018-12-05clk: qcom: Add xo dummy clk on msm8998Stephen Boyd
We have this dummy factor clk in place to workaround a missing rpm clk driver that can manage the XO clk state. Add it in to match what we do on msm8996. Cc: Jeffrey Hugo <jhugo@codeaurora.org> Cc: Marc Gonzalez <marc.w.gonzalez@free.fr> Tested-by: Jeffrey Hugo <jhugo@codeaurora.org> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-05mm, thp: restore node-local hugepage allocationsDavid Rientjes
This is a full revert of ac5b2c18911f ("mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings") and a partial revert of 89c83fb539f9 ("mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask"). By not setting __GFP_THISNODE, applications can allocate remote hugepages when the local node is fragmented or low on memory when either the thp defrag setting is "always" or the vma has been madvised with MADV_HUGEPAGE. Remote access to hugepages often has much higher latency than local pages of the native page size. On Haswell, ac5b2c18911f was shown to have a 13.9% access regression after this commit for binaries that remap their text segment to be backed by transparent hugepages. The intent of ac5b2c18911f is to address an issue where a local node is low on memory or fragmented such that a hugepage cannot be allocated. In every scenario where this was described as a fix, there is abundant and unfragmented remote memory available to allocate from, even with a greater access latency. If remote memory is also low or fragmented, not setting __GFP_THISNODE was also measured on Haswell to have a 40% regression in allocation latency. Restore __GFP_THISNODE for thp allocations. Fixes: ac5b2c18911f ("mm: thp: relax __GFP_THISNODE for MADV_HUGEPAGE mappings") Fixes: 89c83fb539f9 ("mm, thp: consolidate THP gfp handling into alloc_hugepage_direct_gfpmask") Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Mel Gorman <mgorman@techsingularity.net> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Michal Hocko <mhocko@kernel.org> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-12-06Merge tag 'drm-intel-next-2018-12-04' of ↵Dave Airlie
git://anongit.freedesktop.org/drm/drm-intel into drm-next Final drm/i915 changes for v4.21: - ICL DSI video mode enabling (Madhav, Vandita, Jani, Imre) - eDP sink count fix (José) - PSR fixes (José) - DRM DP helper and i915 DSC enabling (Manasi, Gaurav, Anusha) - DP FEC enabling (Anusha) - SKL+ watermark/ddb programming improvements (Ville) - Pixel format fixes (Ville) - Selftest updates (Chris, Tvrtko) - GT and engine workaround improvements (Tvrtko) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87va496uoe.fsf@intel.com
2018-12-05drm/scheduler: Add drm_sched_suspend/resume_timeout()Sharat Masetty
This patch adds two new functions to help client drivers suspend and resume the scheduler job timeout. This can be useful in cases where the hardware has preemption support enabled. Using this, it is possible to have the timeout active only for the ring which is active on the ringbuffer. This patch also makes the job_list_lock IRQ safe. Suggested-by: Christian Koenig <Christian.Koenig@amd.com> Signed-off-by: Sharat Masetty <smasetty@codeaurora.org> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-05drm/scheduler: Set sched->thread to NULL on failureSharat Masetty
In cases where the scheduler instance is used as a base object of another driver object, it's not clear if the driver can call scheduler cleanup on the fail path. So, Set the sched->thread to NULL, so that the driver can safely call drm_sched_fini() during cleanup. Signed-off-by: Sharat Masetty <smasetty@codeaurora.org> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-05drm/amdgpu/acpi: NULL check before some freeing functions is not neededWen Yang
kfree(NULL) is safe, so removes NULL check before freeing the mem. This patch also fix the ifnullfree.cocci warnings. Reviewed-by: Lyude Paul <lyude@redhat.com> Signed-off-by: Wen Yang <wen.yang99@zte.com.cn> CC: Alex Deucher <alexander.deucher@amd.com> CC: christian.koenig@amd.com CC: "David (ChunMing) Zhou" <David1.Zhou@amd.com> CC: David Airlie <airlied@linux.ie> (maintainer:DRM DRIVERS) CC: Lyude Paul <lyude@redhat.com> CC: Rex Zhu <Rex.Zhu@amd.com> CC: Jim Qu <Jim.Qu@amd.com> CC: amd-gfx@lists.freedesktop.org CC: dri-devel@lists.freedesktop.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-05drm/amd/include: Add mmhub 9.4 reg offsets and shift-maskLeo Li
In particular, we need the mmMC_VM_XGMI_LFB_CNTL register, for determining if xGMI is enabled on VG20. This will be used by DC to determine the correct spread spectrum adjustment for display and audio clocks. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-05drm/amdgpu/si: fix SI after doorbell reworkAlex Deucher
SI does not use doorbells, move asic doorbell init later asic check. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=108920 Reviewed-by: Oak Zeng <Oak.Zeng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-05drm/amdgpu/powerplay: fix clock stretcher limits on polaris (v2)Alex Deucher
Adjust limits for newer polaris variants. v2: fix polaris11 kicker (Jerry) Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-05drm/amdgpu/powerplay: fix mclk switch limit on polarisAlex Deucher
Update switch limit on newer polaris variants. This may fix flickering with high refresh rates with mclk switching enabled. Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-05drm/amd/display: Add tracing to dcDavid Francis
[Why] Tracing is a useful and cheap debug functionality [How] This creates a new trace system amdgpu_dm, currently with three trace events amdgpu_dc_rreg and amdgpu_dc_wreg report the address and value of any dc register reads and writes amdgpu_dc_performance requires at least one of those two to be enabled. It counts the register reads and writes since the last entry v2: Don't check for NULL before kfree Signed-off-by: David Francis <David.Francis@amd.com> Reviewed-by: Harry Wentland <Harry.Wentland@amd.com> Acked-by: Leo Li <sunpeng.li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-05acpi/nfit: Fix user-initiated ARS to be "ARS-long" rather than "ARS-short"Dan Williams
A "short" ARS (address range scrub) instructs the platform firmware to return known errors. In contrast, a "long" ARS instructs platform firmware to arrange every data address on the DIMM to be read / checked for poisoned data. The conversion of the flags in commit d3abaf43bab8 "acpi, nfit: Fix Address Range Scrub completion tracking", changed the meaning of passing '0' to acpi_nfit_ars_rescan(). Previously '0' meant "not short", now '0' is ARS_REQ_SHORT. Pass ARS_REQ_LONG to restore the expected scrub-type behavior of user-initiated ARS sessions. Fixes: d3abaf43bab8 ("acpi, nfit: Fix Address Range Scrub completion tracking") Reported-by: Jacek Zloch <jacek.zloch@intel.com> Cc: Vishal Verma <vishal.l.verma@intel.com> Reviewed-by: Dave Jiang <dave.jiang@intel.com> Reviewed-by: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-12-05libnvdimm, pfn: Pad pfn namespaces relative to other regionsDan Williams
Commit cfe30b872058 "libnvdimm, pmem: adjust for section collisions with 'System RAM'" enabled Linux to workaround occasions where platform firmware arranges for "System RAM" and "Persistent Memory" to collide within a single section boundary. Unfortunately, as reported in this issue [1], platform firmware can inflict the same collision between persistent memory regions. The approach of interrogating iomem_resource does not work in this case because platform firmware may merge multiple regions into a single iomem_resource range. Instead provide a method to interrogate regions that share the same parent bus. This is a stop-gap until the core-MM can grow support for hotplug on sub-section boundaries. [1]: https://github.com/pmem/ndctl/issues/76 Fixes: cfe30b872058 ("libnvdimm, pmem: adjust for section collisions with...") Cc: <stable@vger.kernel.org> Reported-by: Patrick Geary <patrickg@supermicro.com> Tested-by: Patrick Geary <patrickg@supermicro.com> Reviewed-by: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-12-05tools/testing/nvdimm: Align test resources to 128MDan Williams
In preparation for libnvdimm growing new restrictions to detect section conflicts between persistent memory regions, enable nfit_test to allocate aligned resources. Use a gen_pool to allocate nfit_test's fake resources in a separate address space from the virtual translation of the same. Reviewed-by: Vishal Verma <vishal.l.verma@intel.com> Tested-by: Vishal Verma <vishal.l.verma@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2018-12-05Merge tag 'for-linus-20181205' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block fixes from Jens Axboe: "A bit earlier in the week as usual, but there's a fix here that should go in sooner rather than later. Under a combination of circumstance, the direct issue path in blk-mq could corrupt data. This wasn't easy to hit, but the ones that are affected by it, seem to hit it pretty easily. Full explanation in the patch. None of the regular filesystem and storage testing has triggered it, even though it's been around since 4.19-rc1. Outside of that, whitelist trim tweak for certain Samsung devices for libata" * tag 'for-linus-20181205' of git://git.kernel.dk/linux-block: blk-mq: fix corruption with direct issue libata: whitelist all SAMSUNG MZ7KM* solid-state disks
2018-12-05clk: mediatek: fix the PCIe MAC clock parentRyder Lee
The PCIe function doesn't work as the clock tree of MAC layer is wrong. Hence fix the clock table. Fixes: 3b5e748615e7 ("clk: mediatek: add clock support for MT7629 SoC") Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2018-12-05USB: check usb_get_extra_descriptor for proper sizeMathias Payer
When reading an extra descriptor, we need to properly check the minimum and maximum size allowed, to prevent from invalid data being sent by a device. Reported-by: Hui Peng <benquike@gmail.com> Reported-by: Mathias Payer <mathias.payer@nebelwelt.net> Co-developed-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Hui Peng <benquike@gmail.com> Signed-off-by: Mathias Payer <mathias.payer@nebelwelt.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-12-05Merge tag 'mac80211-for-davem-2018-12-05' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg: ==================== As it's been a while, we have various fixes for * hwsim * AP mode (client powersave related) * CSA/FTM interaction * a busy loop in IE handling * and similar ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2018-12-05drm/amdgpu/vcn: Update vcn.cur_state during suspendJames Zhu
Replace vcn_v1_0_stop with vcn_v1_0_set_powergating_state during suspend, to keep adev->vcn.cur_state update. It will fix VCN S3 hung issue. Signed-off-by: James Zhu <James.Zhu@amd.com> Reviewed-by: Leo Liu <leo.liu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2018-12-05media: stkwebcam: Bugfix for wrong return valuesAndreas Pape
usb_control_msg returns in case of a successfully sent message the number of sent bytes as a positive number. Don't use this value as a return value for stk_camera_read_reg, as a non-zero return value is used as an error condition in some cases when stk_camera_read_reg is called. Signed-off-by: Andreas Pape <ap@ca-pape.de> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: stkwebcam: Support for ASUS A6VM notebook added.Andreas Pape
The ASUS A6VM notebook has a built in stk11xx webcam which is mounted in a way that the video is vertically and horizontally flipped. Therefore this notebook is added to the special handling in the driver to automatically flip the video into the correct orientation. Signed-off-by: Andreas Pape <ap@ca-pape.de> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-05media: rockchip/vpu: fix a few alignmentsMauro Carvalho Chehab
As reported by checkpatch.pl, some function calls have a wrong alignment. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
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