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2017-07-04switch compat_drm_rmmap() to drm_ioctl_kernel()Al Viro1-10/+4
Signed-off-by: Al Viro <[email protected]>
2017-07-04switch compat_drm_mode_addfb2() to drm_ioctl_kernel()Al Viro1-28/+10
Signed-off-by: Al Viro <[email protected]>
2017-07-04switch compat_drm_wait_vblank() to drm_ioctl_kernel()Al Viro1-16/+10
Signed-off-by: Al Viro <[email protected]>
2017-07-04switch compat_drm_update_draw()Al Viro1-14/+3
Signed-off-by: Al Viro <[email protected]>
2017-07-04compat_drm: switch sg ioctlsAl Viro1-18/+12
Signed-off-by: Al Viro <[email protected]>
2017-07-04compat_drm: switch AGP compat ioctls to drm_ioctl_kernel()Al Viro1-65/+44
[folded a fix from Colin King] Signed-off-by: Al Viro <[email protected]>
2017-07-04mqueue: move compat syscalls to native onesAl Viro3-228/+262
... and stop messing with compat_alloc_user_space() and friends [braino fix from Colin King folded in] Signed-off-by: Al Viro <[email protected]>
2017-07-04amdgpu: Set cik/si_support to 1 by default if radeon isn't builtMichel Dänzer1-0/+14
It was required to explicitly set these parameters to 1, even if the radeon driver isn't built at all, which is not intuitive. Reported-by: Shawn Starr <[email protected]> Signed-off-by: Michel Dänzer <[email protected]> Reviewed-by: Alex Deucher <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2017-07-04Merge branch 'pci/host-xilinx' into nextBjorn Helgaas2-2/+45
* pci/host-xilinx: PCI: xilinx: Make of_device_ids const PCI: xilinx-nwl: Modify IRQ chip for legacy interrupts
2017-07-04Merge branch 'pci/host-vmd' into nextBjorn Helgaas1-2/+5
* pci/host-vmd: PCI: vmd: Move SRCU cleanup after bus, child device removal PCI: vmd: Correct comment: VMD domains start at 0x10000, not 0x1000
2017-07-04Merge branch 'pci/host-versatile' into nextBjorn Helgaas1-9/+9
* pci/host-versatile: PCI: versatile: Add local struct device pointers
2017-07-04Merge branch 'pci/host-tegra' into nextBjorn Helgaas1-12/+21
* pci/host-tegra: PCI: tegra: Do not allocate MSI target memory PCI: tegra: Support MSI 64-bit addressing
2017-07-04Merge branch 'pci/host-rockchip' into nextBjorn Helgaas2-26/+100
* pci/host-rockchip: PCI: rockchip: Use normal register bank for config accessors PCI: rockchip: Use local struct device pointer consistently PCI: rockchip: Check for clk_prepare_enable() errors during resume MAINTAINERS: Remove Wenrui Li as Rockchip PCIe driver maintainer PCI: rockchip: Configure RC's MPS setting PCI: rockchip: Reconfigure configuration space header type PCI: rockchip: Split out rockchip_pcie_cfg_configuration_accesses() PCI: rockchip: Move configuration accesses into rockchip_pcie_cfg_atu() PCI: rockchip: Rename rockchip_cfg_atu() to rockchip_pcie_cfg_atu() PCI: rockchip: Control vpcie0v9 for system PM
2017-07-04Merge branch 'pci/host-rcar' into nextBjorn Helgaas2-2/+2
* pci/host-rcar: PCI: rcar-gen2: Make of_device_ids const PCI: rcar: Use proper name for the R-Car SoC
2017-07-04Merge branch 'pci/host-qcom' into nextBjorn Helgaas2-59/+396
* pci/host-qcom: PCI: qcom: Limit TLP size to 2K to work around hardware issue PCI: qcom: Fix spelling mistake: "asser" -> "assert" PCI: qcom: Reorder to put v0 functions together, v1 functions together, etc PCI: qcom: Add support for IPQ4019 PCIe controller
2017-07-04Merge branch 'pci/host-mediatek' into nextBjorn Helgaas5-0/+704
* pci/host-mediatek: dt-bindings: PCI: Add documentation for MediaTek PCIe PCI: mediatek: Add MediaTek PCIe host controller support
2017-07-04Merge branch 'pci/host-kirin' into nextBjorn Helgaas4-0/+536
* pci/host-kirin: PCI: kirin: Add HiSilicon Kirin SoC PCIe controller driver
2017-07-04perf unwind: Do not fail due to missing unwind supportJiri Olsa1-1/+1
We currently fail the MMAP event processing if we don't have the MMAP event's specific arch unwind support compiled in. That's wrong and can lead to unresolved mmaps in report output for 32bit binaries on 64bit server, like in this example on x86_64 server: $ cat ex.c int main(int argc, char **argv) { while (1) {} } $ gcc -o ex -m32 ex.c $ perf record ./ex ^C[ perf record: Woken up 2 times to write data ] [ perf record: Captured and wrote 0.371 MB perf.data (9322 samples) ] Before: $ perf report --stdio SNIP # Overhead Command Shared Object Symbol # ........ ....... ................ ...................... # 100.00% ex [unknown] [.] 0x00000000080483de 0.00% ex [unknown] [.] 0x00000000f76dba4f 0.00% ex [unknown] [.] 0x00000000f76e4c11 0.00% ex [unknown] [.] 0x00000000f76daa30 After: $ perf report --stdio SNIP # Overhead Command Shared Object Symbol # ........ ....... ............. ............... # 100.00% ex ex [.] main 0.00% ex ld-2.24.so [.] _dl_start 0.00% ex ld-2.24.so [.] do_lookup_x 0.00% ex ld-2.24.so [.] _start The fix is not to fail, just warn if there's not unwind support compiled in. Reported-by: Michael Lyle <[email protected]> Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Arnaldo Carvalho de Melo <[email protected]> Cc: David Ahern <[email protected]> Cc: He Kuang <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-04perf evsel: Set attr.exclude_kernel when probing max attr.precise_ipArnaldo Carvalho de Melo1-0/+1
We should set attr.exclude_kernel when probing for attr.precise_ip level, otherwise !CAP_SYS_ADMIN users will not default to skidless samples in capable hardware. The increase in the paranoid level in commit 0161028b7c8a ("perf/core: Change the default paranoia level to 2") broke this, fix it by excluding kernel samples when probing. Before: $ perf record usleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.018 MB perf.data (6 samples) ] $ perf evlist -v cycles:u: sample_freq: 4000, sample_type: IP|TID|TIME|PERIOD, exclude_kernel: 1 After: $ perf record usleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.018 MB perf.data (8 samples) ] $ perf evlist -v cycles:ppp: sample_freq: 4000, sample_type: IP|TID|TIME|PERIOD, exclude_kernel: 1, precise_ip: 3 ^^^^^^^^^^^^^ ^^^^^^^^^^^^^ ^^^^^^^^^^^^^ $ To further clarify: we always set .exclude_kernel when non !CAP_SYS_ADMIN users profile, its just on the attr.precise_ip probing that we weren't doing so, fix it. Cc: Adrian Hunter <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Fixes: 7f8d1ade1b19 ("perf tools: By default use the most precise "cycles" hw counter available") Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2017-07-04drm/amdgpu/gfx9: fix driver reload with KIQAlex Deucher1-51/+0
Drop the KCQ disabling via KIQ. We disable the MEC shortly after anyway, so there is no need to wait for all of this. Doing so seems to leave the MEC in a bad way. Acked-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2017-07-04drm/amdgpu/gfx8: fix driver reload with KIQAlex Deucher1-68/+1
Drop the deactivation in KIQ init and drop the KCQ disabling via KIQ. We disable the MEC shortly after anyway, so there is no need to wait for all of this. Doing so seems to leave the MEC in a bad way. Tested-by: Michel Dänzer <[email protected]> Acked-by: Christian König <[email protected]> Signed-off-by: Alex Deucher <[email protected]>
2017-07-04ipv4: Export rtm_ipv4_policy.David S. Miller1-0/+1
The MPLS code now needs it. Fixes: 397fc9e5cefe ("mpls: route get support") Signed-off-by: David S. Miller <[email protected]>
2017-07-04ALSA: hda - Fix unbalance of i915 module refcountTakashi Iwai1-1/+1
The commit dba9b7b6ca1a ("ALSA: hda - Fix doubly initialization of i915 component") contained a typo that leads to the unbalance of i915 module reference. The value to be checked is not chip->driver_type but chip->driver_caps. Fixes: dba9b7b6ca1a ("ALSA: hda - Fix doubly initialization of i915 component") Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196219 Reported-by: Martin Peres <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2017-07-04x86/platform/uv/BAU: Minor cleanup, make some local functions staticColin Ian King1-25/+6
The functions handle_uv2_busy, uv_flush_send_and_wait and find_another_by_swack are local to the source, so make them static. Also remove normal_busy as it is no longer used. Fixes various smatch warnings, such as: "symbol 'find_another_by_swack' was not declared. Should it be static?" "symbol 'handle_uv2_busy' was not declared. Should it be static?" Signed-off-by: Colin Ian King <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Mike Travis <[email protected]> Cc: Andrew Banman <[email protected]> Cc: [email protected] Cc: Dimitri Sivanich <[email protected]> Cc: Dou Liyang <[email protected]> Link: http://lkml.kernel.org/r/[email protected]
2017-07-04Update my email addressCornelia Huck1-3/+3
Signed-off-by: Cornelia Huck <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2017-07-04genirq/timings: Move free timings out of spinlocked regionThomas Gleixner1-2/+3
No point to do memory management from a interrupt disabled spin locked region. Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Marc Zyngier <[email protected]> Cc: Daniel Lezcano <[email protected]> Cc: Heiko Stuebner <[email protected]> Cc: Julia Cartwright <[email protected]> Cc: Linus Walleij <[email protected]> Cc: Brian Norris <[email protected]> Cc: Doug Anderson <[email protected]> Cc: [email protected] Cc: John Keeping <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected]
2017-07-04genirq: Move irq resource handling out of spinlocked regionThomas Gleixner1-8/+15
Aside of being conceptually wrong, there is also an actual (hard to trigger and mostly theoretical) problem. CPU0 CPU1 free_irq(X) interrupt X spin_lock(desc->lock) wake irq thread() spin_unlock(desc->lock) spin_lock(desc->lock) remove action() shutdown_irq() release_resources() thread_handler() spin_unlock(desc->lock) access released resources. synchronize_irq() Move the release resources invocation after synchronize_irq() so it's guaranteed that the threaded handler has finished. Move the resource request call out of the desc->lock held region as well, so the invocation context is the same for both request and release. This solves the problems with those functions on RT as well. Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Marc Zyngier <[email protected]> Cc: Heiko Stuebner <[email protected]> Cc: Julia Cartwright <[email protected]> Cc: Linus Walleij <[email protected]> Cc: Brian Norris <[email protected]> Cc: Doug Anderson <[email protected]> Cc: [email protected] Cc: John Keeping <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected]
2017-07-04genirq: Add mutex to irq desc to serialize request/free_irq()Thomas Gleixner3-0/+12
The irq_request/release_resources() callbacks ar currently invoked under desc->lock with interrupts disabled. This is a source of problems on RT and conceptually not required. Add a seperate mutex to struct irq_desc which allows to serialize request/free_irq(), which can be used to move the resource functions out of the desc->lock held region. Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Marc Zyngier <[email protected]> Cc: Heiko Stuebner <[email protected]> Cc: Julia Cartwright <[email protected]> Cc: Linus Walleij <[email protected]> Cc: Brian Norris <[email protected]> Cc: Doug Anderson <[email protected]> Cc: [email protected] Cc: John Keeping <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected]
2017-07-04genirq: Move bus locking into __setup_irq()Thomas Gleixner1-8/+5
There is no point in having the irq_bus_lock() protection around all callers to __setup_irq(). Move it into __setup_irq(). This is also a preparatory patch for addressing the issues with the irq resource callbacks. Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Marc Zyngier <[email protected]> Cc: Heiko Stuebner <[email protected]> Cc: Julia Cartwright <[email protected]> Cc: Linus Walleij <[email protected]> Cc: Brian Norris <[email protected]> Cc: Doug Anderson <[email protected]> Cc: [email protected] Cc: John Keeping <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected]
2017-07-04genirq: Force inlining of __irq_startup_managed to prevent build failureGeert Uytterhoeven1-1/+1
If CONFIG_SMP=n, and gcc (e.g. 4.1.2) decides not to inline __irq_startup_managed(), the build fails with: kernel/built-in.o: In function `irq_startup': (.text+0x38ed8): undefined reference to `irq_set_affinity_locked' Fix this by forcing inlining of __irq_startup_managed(). Fixes: 761ea388e8c4e3ac ("genirq: Handle managed irqs gracefully in irq_startup()") Signed-off-by: Geert Uytterhoeven <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Cc: Arnd Bergmann <[email protected]> Link: http://lkml.kernel.org/r/[email protected]
2017-07-04genirq/debugfs: Fix build for !CONFIG_IRQ_DOMAINSebastian Ott1-1/+3
Fix this build error: kernel/irq/internals.h:440:20: error: inlining failed in call to always_inline 'irq_domain_debugfs_init': function body not available kernel/irq/debugfs.c:202:2: note: called from here irq_domain_debugfs_init(root_dir); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Sebastian Ott <[email protected]> Signed-off-by: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/alpine.LFD.2.20.1707041124000.1712@schleppi
2017-07-04Revert "sched/cputime: Refactor the cputime_adjust() code"Ingo Molnar1-8/+14
This reverts commit 72298e5c92c50edd8cb7cfda4519483ce65fa166. As Peter explains: > Argh, no... That code was perfectly fine. The new code otoh is > convoluted. > > The old code had the following form: > > if (exception1) > deal with exception1 > > if (execption2) > deal with exception2 > > do normal stuff > > Which is as simple and straight forward as it gets. > > The new code otoh reads like: > > if (!exception1) { > if (exception2) > deal with exception 2 > else > do normal stuff > } So restore the old form. Also fix the comment describing the logic, as it was confusing. Requested-by: Peter Zijlstra <[email protected]> Cc: Gustavo A. R. Silva <[email protected]> Cc: Frans Klaver <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Rik van Riel <[email protected]> Cc: Stanislaw Gruszka <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: Wanpeng Li <[email protected]> Cc: [email protected] Signed-off-by: Ingo Molnar <[email protected]>
2017-07-04kvm: vmx: allow host to access guest MSR_IA32_BNDCFGSHaozhong Zhang1-2/+4
It's easier for host applications, such as QEMU, if they can always access guest MSR_IA32_BNDCFGS in VMCS, even though MPX is disabled in guest cpuid. Cc: [email protected] Signed-off-by: Haozhong Zhang <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2017-07-04mpls: route get supportRoopa Prabhu1-1/+162
This patch adds RTM_GETROUTE doit handler for mpls routes. Input: RTA_DST - input label RTA_NEWDST - labels in packet for multipath selection By default the getroute handler returns matched nexthop label, via and oif With RTM_F_FIB_MATCH flag, full matched route is returned. example (with patched iproute2): $ip -f mpls route show 101 nexthop as to 102/103 via inet 172.16.2.2 dev virt1-2 nexthop as to 302/303 via inet 172.16.12.2 dev virt1-12 201 nexthop as to 202/203 via inet6 2001:db8:2::2 dev virt1-2 nexthop as to 402/403 via inet6 2001:db8:12::2 dev virt1-12 $ip -f mpls route get 103 RTNETLINK answers: Network is unreachable $ip -f mpls route get 101 101 as to 102/103 via inet 172.16.2.2 dev virt1-2 $ip -f mpls route get as to 302/303 101 101 as to 302/303 via inet 172.16.12.2 dev virt1-12 $ip -f mpls route get fibmatch 103 RTNETLINK answers: Network is unreachable $ip -f mpls route get fibmatch 101 101 nexthop as to 102/103 via inet 172.16.2.2 dev virt1-2 nexthop as to 302/303 via inet 172.16.12.2 dev virt1-12 Signed-off-by: Roopa Prabhu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04bridge: allow ext learned entries to change portsNikolay Aleksandrov1-8/+20
current code silently ignores change of port in the request message. This patch makes sure the port is modified and notification is sent to userspace. Fixes: cf6b8e1eedff ("bridge: add API to notify bridge driver of learned FBD on offloaded device") Signed-off-by: Nikolay Aleksandrov <[email protected]> Signed-off-by: Roopa Prabhu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net: reflect mark on tcp syn ack packetsJamal Hadi Salim2-1/+3
SYN-ACK responses on a server in response to a SYN from a client did not get the injected skb mark that was tagged on the SYN packet. Fixes: 84f39b08d786 ("net: support marking accepting TCP sockets") Reviewed-by: Lorenzo Colitti <[email protected]> Signed-off-by: Jamal Hadi Salim <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net: ethernet: mediatek: fixed deadlock captured by lockdepSean Wang1-4/+4
Lockdep found an inconsistent lock state when mtk_get_stats64 is called in user context while NAPI updates MAC statistics in softirq. Use spin_trylock_bh/spin_unlock_bh fix following lockdep warning. [ 81.321030] WARNING: inconsistent lock state [ 81.325266] 4.12.0-rc1-00035-gd9dda65 #32 Not tainted [ 81.330273] -------------------------------- [ 81.334505] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 81.340464] ksoftirqd/0/7 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 81.345731] (&syncp->seq#2){+.?...}, at: [<c054ba3c>] mtk_handle_status_irq.part.6+0x70/0x84 [ 81.354219] {SOFTIRQ-ON-W} state was registered at: [ 81.359062] lock_acquire+0xfc/0x2b0 [ 81.362696] mtk_stats_update_mac+0x60/0x2c0 [ 81.367017] mtk_get_stats64+0x17c/0x18c [ 81.370995] dev_get_stats+0x48/0xbc [ 81.374628] rtnl_fill_stats+0x48/0x128 [ 81.378520] rtnl_fill_ifinfo+0x4ac/0xd1c [ 81.382584] rtmsg_ifinfo_build_skb+0x7c/0xe0 [ 81.386991] rtmsg_ifinfo.part.5+0x24/0x54 [ 81.391139] rtmsg_ifinfo+0x24/0x28 [ 81.394685] __dev_notify_flags+0xa4/0xac [ 81.398749] dev_change_flags+0x50/0x58 [ 81.402640] devinet_ioctl+0x768/0x85c [ 81.406444] inet_ioctl+0x1a4/0x1d0 [ 81.409990] sock_ioctl+0x16c/0x33c [ 81.413538] do_vfs_ioctl+0xb4/0xa34 [ 81.417169] SyS_ioctl+0x44/0x6c [ 81.420458] ret_fast_syscall+0x0/0x1c [ 81.424260] irq event stamp: 3354692 [ 81.427806] hardirqs last enabled at (3354692): [<c0678168>] net_rx_action+0xc0/0x504 [ 81.435660] hardirqs last disabled at (3354691): [<c0678134>] net_rx_action+0x8c/0x504 [ 81.443515] softirqs last enabled at (3354106): [<c0101944>] __do_softirq+0x4b4/0x614 [ 81.451370] softirqs last disabled at (3354109): [<c012f0c4>] run_ksoftirqd+0x44/0x80 [ 81.459134] [ 81.459134] other info that might help us debug this: [ 81.465608] Possible unsafe locking scenario: [ 81.465608] [ 81.471478] CPU0 [ 81.473900] ---- [ 81.476321] lock(&syncp->seq#2); [ 81.479701] <Interrupt> [ 81.482294] lock(&syncp->seq#2); [ 81.485847] [ 81.485847] *** DEADLOCK *** [ 81.485847] [ 81.491720] 1 lock held by ksoftirqd/0/7: [ 81.495693] #0: (&(&mac->hw_stats->stats_lock)->rlock){+.+...}, at: [<c054ba14>] mtk_handle_status_irq.part.6+0x48/0x84 [ 81.506579] [ 81.506579] stack backtrace: [ 81.510904] CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.12.0-rc1-00035-gd9dda65 #32 [ 81.518668] Hardware name: Mediatek Cortex-A7 (Device Tree) [ 81.524208] [<c0113dc4>] (unwind_backtrace) from [<c010e3f0>] (show_stack+0x20/0x24) [ 81.531899] [<c010e3f0>] (show_stack) from [<c03f9c64>] (dump_stack+0xb4/0xe0) [ 81.539072] [<c03f9c64>] (dump_stack) from [<c017e970>] (print_usage_bug+0x234/0x2e0) [ 81.546846] [<c017e970>] (print_usage_bug) from [<c017f058>] (mark_lock+0x63c/0x7bc) [ 81.554532] [<c017f058>] (mark_lock) from [<c017fe90>] (__lock_acquire+0x654/0x1bfc) [ 81.562217] [<c017fe90>] (__lock_acquire) from [<c0181d04>] (lock_acquire+0xfc/0x2b0) [ 81.569990] [<c0181d04>] (lock_acquire) from [<c054b76c>] (mtk_stats_update_mac+0x60/0x2c0) [ 81.578283] [<c054b76c>] (mtk_stats_update_mac) from [<c054ba3c>] (mtk_handle_status_irq.part.6+0x70/0x84) [ 81.587865] [<c054ba3c>] (mtk_handle_status_irq.part.6) from [<c054c2b8>] (mtk_napi_tx+0x358/0x37c) [ 81.596845] [<c054c2b8>] (mtk_napi_tx) from [<c06782ec>] (net_rx_action+0x244/0x504) [ 81.604533] [<c06782ec>] (net_rx_action) from [<c01015c4>] (__do_softirq+0x134/0x614) [ 81.612306] [<c01015c4>] (__do_softirq) from [<c012f0c4>] (run_ksoftirqd+0x44/0x80) [ 81.619907] [<c012f0c4>] (run_ksoftirqd) from [<c0154680>] (smpboot_thread_fn+0x14c/0x25c) [ 81.628110] [<c0154680>] (smpboot_thread_fn) from [<c014f8cc>] (kthread+0x150/0x180) [ 81.635798] [<c014f8cc>] (kthread) from [<c0109290>] (ret_from_fork+0x14/0x24) Signed-off-by: Sean Wang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04Merge branch 'ipv4-ipv6-refcount_t'David S. Miller15-51/+56
Elena Reshetova says: ==================== v2 ipv4/ipv6 refcount conversions Changes in v2: * rebase on top of net-next * currently by default refcount_t = atomic_t (*) and uses all atomic standard operations unless CONFIG_REFCOUNT_FULL is enabled. This is a compromise for the systems that are critical on performance (such as net) and cannot accept even slight delay on the refcounter operations. This series, for ipv4/ipv6 network components, replaces atomic_t reference counters with the new refcount_t type and API (see include/linux/refcount.h). By doing this we prevent intentional or accidental underflows or overflows that can led to use-after-free vulnerabilities. The patches are fully independent and can be cherry-picked separately. In order to try with refcount functionality enabled in run-time, CONFIG_REFCOUNT_FULL must be enabled. NOTE: automatic kernel builder for some reason doesn't like all my network branches and regularly times out the builds on these branches. Suggestion for "waiting a day for a good coverage" doesn't work, as we have seen with generic network conversions. So please wait for the full report from kernel test rebot before merging further up. This has been compile-tested in 116 configs, but 71 timed out (including all s390-related configs again). I am trying to see if they can fix build coverage for me in meanwhile. * The respective change is currently merged into -next as "locking/refcount: Create unchecked atomic_t implementation". ==================== Signed-off-by: David S. Miller <[email protected]>
2017-07-04net, ipv4: convert fib_info.fib_clntref from atomic_t to refcount_tReshetova, Elena3-5/+6
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net, ipv4: convert cipso_v4_doi.refcount from atomic_t to refcount_tReshetova, Elena2-7/+8
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net, ipv6: convert ip6addrlbl_entry.refcnt from atomic_t to refcount_tReshetova, Elena1-4/+5
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net, ipv6: convert xfrm6_tunnel_spi.refcnt from atomic_t to refcount_tReshetova, Elena1-4/+4
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net, ipv6: convert ifacaddr6.aca_refcnt from atomic_t to refcount_tReshetova, Elena2-4/+4
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net, ipv6: convert ifmcaddr6.mca_refcnt from atomic_t to refcount_tReshetova, Elena2-10/+10
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net, ipv6: convert inet6_ifaddr.refcnt from atomic_t to refcount_tReshetova, Elena3-5/+5
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net, ipv6: convert inet6_dev.refcnt from atomic_t to refcount_tReshetova, Elena3-6/+7
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04net, ipv6: convert ipv6_txoptions.refcnt from atomic_t to refcount_tReshetova, Elena3-6/+7
refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova <[email protected]> Signed-off-by: Hans Liljestrand <[email protected]> Signed-off-by: Kees Cook <[email protected]> Signed-off-by: David Windsor <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2017-07-04Merge branch 'topic/rcar' into for-linusVinod Koul3-9/+25
2017-07-04Merge branch 'topic/pl330' into for-linusVinod Koul1-76/+66
2017-07-04Merge branch 'topic/pl08x' into for-linusVinod Koul9-276/+905