summaryrefslogtreecommitdiff
AgeCommit message (Collapse)Author
2020-12-09locking/rwsem: Fold __down_{read,write}*()Peter Zijlstra
There's a lot needless duplication in __down_{read,write}*(), cure that with a helper. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20201207090243.GE3040@hirez.programming.kicks-ass.net
2020-12-09locking/rwsem: Introduce rwsem_write_trylock()Peter Zijlstra
One copy of this logic is better than three. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20201207090243.GE3040@hirez.programming.kicks-ass.net
2020-12-09locking/rwsem: Better collate rwsem_read_trylock()Peter Zijlstra
All users of rwsem_read_trylock() do rwsem_set_reader_owned(sem) on success, move it into rwsem_read_trylock() proper. Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20201207090243.GE3040@hirez.programming.kicks-ass.net
2020-12-09Merge branch 'locking/rwsem'Peter Zijlstra
2020-12-09rwsem: Implement down_read_interruptibleEric W. Biederman
In preparation for converting exec_update_mutex to a rwsem so that multiple readers can execute in parallel and not deadlock, add down_read_interruptible. This is needed for perf_event_open to be converted (with no semantic changes) from working on a mutex to wroking on a rwsem. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/87k0tybqfy.fsf@x220.int.ebiederm.org
2020-12-09rwsem: Implement down_read_killable_nestedEric W. Biederman
In preparation for converting exec_update_mutex to a rwsem so that multiple readers can execute in parallel and not deadlock, add down_read_killable_nested. This is needed so that kcmp_lock can be converted from working on a mutexes to working on rw_semaphores. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/87o8jabqh3.fsf@x220.int.ebiederm.org
2020-12-09Merge branch 'bpf-xsk-selftests'Daniel Borkmann
Weqaar Janjua says: ==================== This patch set adds AF_XDP selftests based on veth to selftests/bpf. # Topology: # --------- # ----------- # _ | Process | _ # / ----------- \ # / | \ # / | \ # ----------- | ----------- # | Thread1 | | | Thread2 | # ----------- | ----------- # | | | # ----------- | ----------- # | xskX | | | xskY | # ----------- | ----------- # | | | # ----------- | ---------- # | vethX | --------- | vethY | # ----------- peer ---------- # | | | # namespaceX | namespaceY These selftests test AF_XDP SKB and Native/DRV modes using veth Virtual Ethernet interfaces. The test program contains two threads, each thread is single socket with a unique UMEM. It validates in-order packet delivery and packet content by sending packets to each other. Prerequisites setup by script test_xsk.sh: Set up veth interfaces as per the topology shown ^^: * setup two veth interfaces and one namespace ** veth<xxxx> in root namespace ** veth<yyyy> in af_xdp<xxxx> namespace ** namespace af_xdp<xxxx> * create a spec file veth.spec that includes this run-time configuration *** xxxx and yyyy are randomly generated 4 digit numbers used to avoid conflict with any existing interface Adds xsk framework test to validate veth xdp DRV and SKB modes. The following tests are provided: 1. AF_XDP SKB mode Generic mode XDP is driver independent, used when the driver does not have support for XDP. Works on any netdevice using sockets and generic XDP path. XDP hook from netif_receive_skb(). a. nopoll - soft-irq processing b. poll - using poll() syscall c. Socket Teardown Create a Tx and a Rx socket, Tx from one socket, Rx on another. Destroy both sockets, then repeat multiple times. Only nopoll mode is used d. Bi-directional Sockets Configure sockets as bi-directional tx/rx sockets, sets up fill and completion rings on each socket, tx/rx in both directions. Only nopoll mode is used 2. AF_XDP DRV/Native mode Works on any netdevice with XDP_REDIRECT support, driver dependent. Processes packets before SKB allocation. Provides better performance than SKB. Driver hook available just after DMA of buffer descriptor. a. nopoll b. poll c. Socket Teardown d. Bi-directional Sockets * Only copy mode is supported because veth does not currently support zero-copy mode Total tests: 8 Flow: * Single process spawns two threads: Tx and Rx * Each of these two threads attach to a veth interface within their assigned namespaces * Each thread creates one AF_XDP socket connected to a unique umem for each veth interface * Tx thread transmits 10k packets from veth<xxxx> to veth<yyyy> * Rx thread verifies if all 10k packets were received and delivered in-order, and have the right content v2 changes: * Move selftests/xsk to selftests/bpf * Remove Makefiles under selftests/xsk, and utilize selftests/bpf/Makefile v3 changes: * merge all test scripts test_xsk_*.sh into test_xsk.sh v4 changes: * merge xsk_env.sh into xsk_prereqs.sh * test_xsk.sh add cliarg -c for color-coded output * test_xsk.sh PREREQUISITES disables IPv6 on veth interfaces * test_xsk.sh PREREQUISITES adds xsk framework test * test_xsk.sh is independently executable * xdpxceiver.c Tx/Rx validates only IPv4 packets with TOS 0x9, ignores others ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2020-12-09selftests/bpf: Xsk selftests - Bi-directional Sockets - SKB, DRVWeqaar Janjua
Adds following tests: 1. AF_XDP SKB mode d. Bi-directional Sockets Configure sockets as bi-directional tx/rx sockets, sets up fill and completion rings on each socket, tx/rx in both directions. Only nopoll mode is used 2. AF_XDP DRV/Native mode d. Bi-directional Sockets * Only copy mode is supported because veth does not currently support zero-copy mode Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-6-weqaar.a.janjua@intel.com
2020-12-09selftests/bpf: Xsk selftests - Socket Teardown - SKB, DRVWeqaar Janjua
Adds following tests: 1. AF_XDP SKB mode c. Socket Teardown Create a Tx and a Rx socket, Tx from one socket, Rx on another. Destroy both sockets, then repeat multiple times. Only nopoll mode is used 2. AF_XDP DRV/Native mode c. Socket Teardown * Only copy mode is supported because veth does not currently support zero-copy mode Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-5-weqaar.a.janjua@intel.com
2020-12-09selftests/bpf: Xsk selftests - DRV POLL, NOPOLLWeqaar Janjua
Adds following tests: 2. AF_XDP DRV/Native mode Works on any netdevice with XDP_REDIRECT support, driver dependent. Processes packets before SKB allocation. Provides better performance than SKB. Driver hook available just after DMA of buffer descriptor. a. nopoll b. poll * Only copy mode is supported because veth does not currently support zero-copy mode Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-4-weqaar.a.janjua@intel.com
2020-12-09selftests/bpf: Xsk selftests - SKB POLL, NOPOLLWeqaar Janjua
Adds following tests: 1. AF_XDP SKB mode Generic mode XDP is driver independent, used when the driver does not have support for XDP. Works on any netdevice using sockets and generic XDP path. XDP hook from netif_receive_skb(). a. nopoll - soft-irq processing b. poll - using poll() syscall Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-3-weqaar.a.janjua@intel.com
2020-12-09selftests/bpf: Xsk selftests frameworkWeqaar Janjua
This patch adds AF_XDP selftests framework under selftests/bpf. Topology: --------- ----------- ----------- | xskX | --------- | xskY | ----------- | ----------- | | | ----------- | ---------- | vethX | --------- | vethY | ----------- peer ---------- | | | namespaceX | namespaceY Prerequisites setup by script test_xsk.sh: Set up veth interfaces as per the topology shown ^^: * setup two veth interfaces and one namespace ** veth<xxxx> in root namespace ** veth<yyyy> in af_xdp<xxxx> namespace ** namespace af_xdp<xxxx> * create a spec file veth.spec that includes this run-time configuration *** xxxx and yyyy are randomly generated 4 digit numbers used to avoid conflict with any existing interface * tests the veth and xsk layers of the topology Signed-off-by: Weqaar Janjua <weqaar.a.janjua@intel.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Yonghong Song <yhs@fb.com> Acked-by: Björn Töpel <bjorn.topel@intel.com> Link: https://lore.kernel.org/bpf/20201207215333.11586-2-weqaar.a.janjua@intel.com
2020-12-09Merge branch 'bpf-xdp-offload-fixes'Daniel Borkmann
Toke Høiland-Jørgensen says: ==================== This series restores the test_offload.py selftest to working order. It seems a number of subtle behavioural changes have crept into various subsystems which broke test_offload.py in a number of ways. Most of these are fairly benign changes where small adjustments to the test script seems to be the best fix, but one is an actual kernel bug that I've observed in the wild caused by a bad interaction between xdp_attachment_flags_ok() and the rework of XDP program handling in the core netdev code. Patch 1 fixes the bug by removing xdp_attachment_flags_ok(), and the reminder of the patches are adjustments to test_offload.py, including a new feature for netdevsim to force a BPF verification fail. Please see the individual patches for details. Changelog: v4: - Accidentally truncated the Fixes: hashes in patches 3/4 to 11 chars v3: - Add Fixes: tags v2: - Replace xdp_attachment_flags_ok() with a check in dev_xdp_attach() - Better packing of struct nsim_dev ==================== Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2020-12-09selftests/bpf/test_offload.py: Filter bpftool internal map when counting mapsToke Høiland-Jørgensen
A few of the tests in test_offload.py expects to see a certain number of maps created, and checks this by counting the number of maps returned by bpftool. There is already a filter that will remove any maps already there at the beginning of the test, but bpftool now creates a map for the PID iterator rodata on each invocation, which makes the map count wrong. Fix this by also filtering the pid_iter.rodata map by name when counting. Fixes: d53dee3fe013 ("tools/bpftool: Show info for processes holding BPF map/prog/link/btf FDs") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/bpf/160752226387.110217.9887866138149423444.stgit@toke.dk
2020-12-09selftests/bpf/test_offload.py: Reset ethtool features after failed settingToke Høiland-Jørgensen
When setting the ethtool feature flag fails (as expected for the test), the kernel now tracks that the feature was requested to be 'off' and refuses to subsequently disable it again. So reset it back to 'on' so a subsequent disable (that's not supposed to fail) can succeed. Fixes: 417ec26477a5 ("selftests/bpf: add offload test based on netdevsim") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/bpf/160752226280.110217.10696241563705667871.stgit@toke.dk
2020-12-09selftests/bpf/test_offload.py: Fix expected case of extack messagesToke Høiland-Jørgensen
Commit 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF programs in net_device") changed the case of some of the extack messages being returned when attaching of XDP programs failed. This broke test_offload.py, so let's fix the test to reflect this. Fixes: 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF programs in net_device") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/bpf/160752226175.110217.11214100824416344952.stgit@toke.dk
2020-12-09selftests/bpf/test_offload.py: Only check verifier log on verification failsToke Høiland-Jørgensen
Since commit 6f8a57ccf851 ("bpf: Make verifier log more relevant by default"), the verifier discards log messages for successfully-verified programs. This broke test_offload.py which is looking for a verification message from the driver callback. Change test_offload.py to use the toggle in netdevsim to make the verification fail before looking for the verification message. Fixes: 6f8a57ccf851 ("bpf: Make verifier log more relevant by default") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/bpf/160752226069.110217.12370824996153348073.stgit@toke.dk
2020-12-09netdevsim: Add debugfs toggle to reject BPF programs in verifierToke Høiland-Jørgensen
This adds a new debugfs toggle ('bpf_bind_verifier_accept') that can be used to make netdevsim reject BPF programs from being accepted by the verifier. If this toggle (which defaults to true) is set to false, nsim_bpf_verify_insn() will return EOPNOTSUPP on the last instruction (after outputting the 'Hello from netdevsim' verifier message). This makes it possible to check the verification callback in the driver from test_offload.py in selftests, since the verifier now clears the verifier log on a successful load, hiding the message from the driver. Fixes: 6f8a57ccf851 ("bpf: Make verifier log more relevant by default") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/bpf/160752225964.110217.12584017165318065332.stgit@toke.dk
2020-12-09selftests/bpf/test_offload.py: Remove check for program load flags matchToke Høiland-Jørgensen
Since we just removed the xdp_attachment_flags_ok() callback, also remove the check for it in test_offload.py, and replace it with a test for the new ambiguity-avoid check when multiple programs are loaded. Fixes: 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF programs in net_device") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/bpf/160752225858.110217.13036901876869496246.stgit@toke.dk
2020-12-09xdp: Remove the xdp_attachment_flags_ok() callbackToke Høiland-Jørgensen
Since commit 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF programs in net_device"), the XDP program attachment info is now maintained in the core code. This interacts badly with the xdp_attachment_flags_ok() check that prevents unloading an XDP program with different load flags than it was loaded with. In practice, two kinds of failures are seen: - An XDP program loaded without specifying a mode (and which then ends up in driver mode) cannot be unloaded if the program mode is specified on unload. - The dev_xdp_uninstall() hook always calls the driver callback with the mode set to the type of the program but an empty flags argument, which means the flags_ok() check prevents the program from being removed, leading to bpf prog reference leaks. The original reason this check was added was to avoid ambiguity when multiple programs were loaded. With the way the checks are done in the core now, this is quite simple to enforce in the core code, so let's add a check there and get rid of the xdp_attachment_flags_ok() callback entirely. Fixes: 7f0a838254bd ("bpf, xdp: Maintain info on attached XDP BPF programs in net_device") Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jakub Kicinski <kuba@kernel.org> Link: https://lore.kernel.org/bpf/160752225751.110217.10267659521308669050.stgit@toke.dk
2020-12-09drm/amdgpu: Initialise drm_gem_object_funcs for imported BOsAndrey Grodzovsky
For BOs imported from outside of amdgpu, setting of amdgpu_gem_object_funcs was missing in amdgpu_dma_buf_create_obj. Fix by refactoring BO creation and amdgpu_gem_object_funcs setting into single function called from both code paths. Fixes: d693def4fd1c ("drm: Remove obsolete GEM and PRIME callbacks from struct drm_driver") v2: Use use amdgpu_gem_object_create() directly v3: fix warning Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-09drm/amdgpu: fix size calculation with stolen vga memoryAlex Deucher
If we need to keep the stolen vga memory, make sure it is at least as big as the legacy vga size. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2020-12-09drm/amd/pm: update smu10.h WORKLOAD_PPLIB setting for ravenChangfeng
When using old WORKLOAD_PPLIB setting in smu10.h, there is problem that it can't be able to switch to mak gpu clk during compute workload. It needs to update WORKLOAD_PPLIB setting to fix this issue. Signed-off-by: Changfeng <Changfeng.Zhu@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2020-12-09drm/amdkfd: Fix leak in dmabuf importFelix Kuehling
Release dmabuf reference before returning from kfd_ioctl_import_dmabuf. amdgpu_amdkfd_gpuvm_import_dmabuf takes a reference to the underlying GEM BO and doesn't keep the reference to the dmabuf wrapper. Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Kent Russell <kent.russell@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-09drm/amdgpu: fix sdma instance fw version and feature version initStanley.Yang
each sdma instance fw_version and feature_version should be set right value when asic type isn't between SIENNA_CICHILD and CHIP_DIMGREY_CAVEFISH Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com> Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2020-12-09drm/amd/display: Add wm table for RenoirSung Lee
[Why] Without additional HostVM Latency, Renoir takes 2us longer to exit self-refresh. This causes underflow in certain cases. [How] Add table for Renoir with updated sr exit latencies for WM set A. Signed-off-by: Sung Lee <sung.lee@amd.com> Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com> Reviewed-by: Roman Li <Roman.Li@amd.com> Acked-by: Eryk Brol <eryk.brol@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-09drm/amd/display: Prevent bandwidth overflowChris Park
[Why] At very high pixel clock, bandwidth calculation exceeds 32 bit size and overflow value. This causes the resulting selection of link rate to be inaccurate. [How] Change order of operation and use fixed point to deal with integer accuracy. Also address bug found when forcing link rate. Signed-off-by: Chris Park <Chris.Park@amd.com> Reviewed-by: Wenjing Liu <Wenjing.Liu@amd.com> Acked-by: Eryk Brol <eryk.brol@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-09drm/amdgpu: fix debugfs creation/removal, againArnd Bergmann
There is still a warning when CONFIG_DEBUG_FS is disabled: drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1145:13: error: 'amdgpu_ras_debugfs_create_ctrl_node' defined but not used [-Werror=unused-function] 1145 | static void amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev) Change the code again to make the compiler actually drop this code but not warn about it. Fixes: ae2bf61ff39e ("drm/amdgpu: guard ras debugfs creation/removal based on CONFIG_DEBUG_FS") Reviewed-by: Tao Zhou <tao.zhou1@amd.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-12-09drm/amdgpu/disply: set num_crtc earlierAlex Deucher
To avoid a recently added warning: Bogus possible_crtcs: [ENCODER:65:TMDS-65] possible_crtcs=0xf (full crtc mask=0x7) WARNING: CPU: 3 PID: 439 at drivers/gpu/drm/drm_mode_config.c:617 drm_mode_config_validate+0x178/0x200 [drm] In this case the warning is harmless, but confusing to users. Fixes: 0df108237433 ("drm: Validate encoder->possible_crtcs") Bug: https://bugzilla.kernel.org/show_bug.cgi?id=209123 Reviewed-by: Daniel Vetter <daniel@ffwll.ch> Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2020-12-09lkdtm: don't move ctors to .rodataMark Rutland
When building with KASAN and LKDTM, clang may implictly generate an asan.module_ctor function in the LKDTM rodata object. The Makefile moves the lkdtm_rodata_do_nothing() function into .rodata by renaming the file's .text section to .rodata, and consequently also moves the ctor function into .rodata, leading to a boot time crash (splat below) when the ctor is invoked by do_ctors(). Let's prevent this by marking the function as noinstr rather than notrace, and renaming the file's .noinstr.text to .rodata. Marking the function as noinstr will prevent tracing and kprobes, and will inhibit any undesireable compiler instrumentation. The ctor function (if any) will be placed in .text and will work correctly. Example splat before this patch is applied: [ 0.916359] Unable to handle kernel execute from non-executable memory at virtual address ffffa0006b60f5ac [ 0.922088] Mem abort info: [ 0.922828] ESR = 0x8600000e [ 0.923635] EC = 0x21: IABT (current EL), IL = 32 bits [ 0.925036] SET = 0, FnV = 0 [ 0.925838] EA = 0, S1PTW = 0 [ 0.926714] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000427b3000 [ 0.928489] [ffffa0006b60f5ac] pgd=000000023ffff003, p4d=000000023ffff003, pud=000000023fffe003, pmd=0068000042000f01 [ 0.931330] Internal error: Oops: 8600000e [#1] PREEMPT SMP [ 0.932806] Modules linked in: [ 0.933617] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc7 #2 [ 0.935620] Hardware name: linux,dummy-virt (DT) [ 0.936924] pstate: 40400005 (nZcv daif +PAN -UAO -TCO BTYPE=--) [ 0.938609] pc : asan.module_ctor+0x0/0x14 [ 0.939759] lr : do_basic_setup+0x4c/0x70 [ 0.940889] sp : ffff27b600177e30 [ 0.941815] x29: ffff27b600177e30 x28: 0000000000000000 [ 0.943306] x27: 0000000000000000 x26: 0000000000000000 [ 0.944803] x25: 0000000000000000 x24: 0000000000000000 [ 0.946289] x23: 0000000000000001 x22: 0000000000000000 [ 0.947777] x21: ffffa0006bf4a890 x20: ffffa0006befb6c0 [ 0.949271] x19: ffffa0006bef9358 x18: 0000000000000068 [ 0.950756] x17: fffffffffffffff8 x16: 0000000000000000 [ 0.952246] x15: 0000000000000000 x14: 0000000000000000 [ 0.953734] x13: 00000000838a16d5 x12: 0000000000000001 [ 0.955223] x11: ffff94000da74041 x10: dfffa00000000000 [ 0.956715] x9 : 0000000000000000 x8 : ffffa0006b60f5ac [ 0.958199] x7 : f9f9f9f9f9f9f9f9 x6 : 000000000000003f [ 0.959683] x5 : 0000000000000040 x4 : 0000000000000000 [ 0.961178] x3 : ffffa0006bdc15a0 x2 : 0000000000000005 [ 0.962662] x1 : 00000000000000f9 x0 : ffffa0006bef9350 [ 0.964155] Call trace: [ 0.964844] asan.module_ctor+0x0/0x14 [ 0.965895] kernel_init_freeable+0x158/0x198 [ 0.967115] kernel_init+0x14/0x19c [ 0.968104] ret_from_fork+0x10/0x30 [ 0.969110] Code: 00000003 00000000 00000000 00000000 (00000000) [ 0.970815] ---[ end trace b5339784e20d015c ]--- Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kees Cook <keescook@chromium.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20201207170533.10738-1-mark.rutland@arm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09ASoC: AMD Renoir - add DMI table to avoid the ACP mic probe (broken BIOS)Jaroslav Kysela
Users reported that some Lenovo AMD platforms do not have ACP microphone, but the BIOS advertises it via ACPI. This patch create a simple DMI table, where those machines with the broken BIOS can be added. The DMI description for Lenovo IdeaPad 5 and IdeaPad Flex 5 devices are added there. Also describe the dmic_acpi_check kernel module parameter in a more understandable way. Cc: <stable@kernel.org> Cc: Vijendar Mukunda <Vijendar.Mukunda@amd.com> Cc: Mark Brown <broonie@kernel.org> Signed-off-by: Jaroslav Kysela <perex@perex.cz> Link: https://lore.kernel.org/r/20201208171200.2737620-1-perex@perex.cz Signed-off-by: Mark Brown <broonie@kernel.org>
2020-12-09Merge series "ASoC: soc-pcm: trigger cleanup" from Kuninori Morimoto ↵Mark Brown
<kuninori.morimoto.gx@renesas.com>: Hi Mark These are focusing to trigger function, which can be cleanup, tidyup. Kuninori Morimoto (2): ASoC: soc-pcm: remove dpcm_do_trigger() ASoC: soc-pcm: care trigger rollback include/sound/soc-component.h | 3 +- include/sound/soc-dai.h | 4 +- include/sound/soc-link.h | 3 +- include/sound/soc.h | 1 + sound/soc/soc-component.c | 45 ++++++++++++++++++---- sound/soc/soc-dai.c | 44 +++++++++++++++++---- sound/soc/soc-link.c | 30 ++++++++++++++- sound/soc/soc-pcm.c | 72 ++++++++++++++++++++--------------- 8 files changed, 152 insertions(+), 50 deletions(-) -- 2.25.1
2020-12-09firmware: fix a spelling mistake "managament" -> "management" in KconfigColin Ian King
There is a spelling mistake in the Kconfig help text. Fix it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20201204192250.1151316-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09binder: add flag to clear buffer on txn completeTodd Kjos
Add a per-transaction flag to indicate that the buffer must be cleared when the transaction is complete to prevent copies of sensitive data from being preserved in memory. Signed-off-by: Todd Kjos <tkjos@google.com> Link: https://lore.kernel.org/r/20201120233743.3617529-1-tkjos@google.com Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09speakup: fix uninitialized flush_lockYang Yingliang
The flush_lock is uninitialized, use DEFINE_SPINLOCK to define and initialize flush_lock. Fixes: c6e3fd22cd53 ("Staging: add speakup to the staging directory") Reported-by: Hulk Robot <hulkci@huawei.com> Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20201117012229.3395186-1-yangyingliang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09tty: Fix whitespace inconsistencies in vt_io_ioctlYan.Gao
Replaces spaces with tabs for indentation. Signed-off-by: Yan.Gao <gao.yanB@h3c.com> Link: https://lore.kernel.org/r/20201209030551.48029-1-gao.yanB@h3c.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09serial_core: Check for port state when tty is in error stateAlexey Kardashevskiy
At the moment opening a serial device node (such as /dev/ttyS3) succeeds even if there is no actual serial device behind it. Reading/writing/ioctls fail as expected because the uart port is not initialized (the type is PORT_UNKNOWN) and the TTY_IO_ERROR error state bit is set fot the tty. However setting line discipline does not have these checks 8250_port.c (8250 is the default choice made by univ8250_console_init()). As the result of PORT_UNKNOWN, uart_port::iobase is NULL which a platform translates onto some address accessing which produces a crash like below. This adds tty_port_initialized() to uart_set_ldisc() to prevent the crash. Found by syzkaller. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Link: https://lore.kernel.org/r/20201203055834.45838-1-aik@ozlabs.ru Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09dt-bindings: serial: Update DT binding docs to support SiFive FU740 SoCYash Shah
Add new compatible strings to the DT binding documents to support SiFive FU740-C000. Signed-off-by: Yash Shah <yash.shah@sifive.com> Link: https://lore.kernel.org/r/1607403341-57214-5-git-send-email-yash.shah@sifive.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09tty: use const parameters in port-flag accessorsJohan Hovold
Declare the port parameter to the flag-test accessors as const. This is currently mostly cosmetic as the accessors are already inlined. Suggested-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20201202113942.27024-3-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09tty: use assign_bit() in port-flag accessorsJohan Hovold
Use the new assign_bit() wrapper in the port-flag accessors instead of open coding. Suggested-by: Jiri Slaby <jirislaby@kernel.org> Signed-off-by: Johan Hovold <johan@kernel.org> Link: https://lore.kernel.org/r/20201202113942.27024-2-johan@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09usb: oxu210hp-hcd: Fix memory leak in oxu_createZhang Qilong
usb_create_hcd will alloc memory for hcd, and we should call usb_put_hcd to free it when adding fails to prevent memory leak. Fixes: b92a78e582b1a ("usb host: Oxford OXU210HP HCD driver") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Link: https://lore.kernel.org/r/20201123145809.1456541-1-zhangqilong3@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09usb: fotg210-hcd: remove casting dma_alloc_coherentXu Wang
Remove casting the values returned by dma_alloc_coherent. Signed-off-by: Xu Wang <vulab@iscas.ac.cn> Link: https://lore.kernel.org/r/20201120083054.8973-1-vulab@iscas.ac.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09USB: host: u123-hcd: remove trailing semicolon in macro definitionTom Rix
The macro use will already have a semicolon. Signed-off-by: Tom Rix <trix@redhat.com> Link: https://lore.kernel.org/r/20201127190336.2841413-1-trix@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09usb: phy: Fix spelling mistake in Kconfig help textColin Ian King
There is a spelling mistake in the Kconfig help text. Fix it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: https://lore.kernel.org/r/20201126223704.13273-1-colin.king@canonical.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09drivers: usb: atm: use pr_err() and pr_warn() instead of raw printk()Enrico Weigelt, metux IT consult
Since we have the nice helpers pr_err() and pr_warn(), use them instead of raw printk(). Acked-by: Duncan Sands <duncan.sands@free.fr> Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Link: https://lore.kernel.org/r/20201208093206.24780-3-info@metux.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09drivers: usb: atm: use atm_info() instead of atm_printk(KERN_INFO ...Enrico Weigelt, metux IT consult
Since we already have the useful atm_info() macro, use it instead of raw atm_printk() Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Link: https://lore.kernel.org/r/20201208093206.24780-2-info@metux.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09drivers: usb: atm: reduce noiseEnrico Weigelt, metux IT consult
If drivers work correctly, they should remain silent. Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net> Link: https://lore.kernel.org/r/20201208093206.24780-1-info@metux.net Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-09perf/imx_ddr: Add system PMU identifier for userspaceJoakim Zhang
The DDR Perf for i.MX8 is a system PMU whose AXI ID would different from SoC to SoC. Need expose system PMU identifier for userspace which refer to /sys/bus/event_source/devices/<PMU DEVICE>/identifier. Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Reviewed-by: John Garry <john.garry@huawei.com> Link: https://lore.kernel.org/r/20201130114202.26057-3-qiangqing.zhang@nxp.com Signed-off-by: Will Deacon <will@kernel.org>
2020-12-09bindings: perf: imx-ddr: add compatible stringJoakim Zhang
Add extra compabile string to support driver. Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20201130114202.26057-2-qiangqing.zhang@nxp.com Signed-off-by: Will Deacon <will@kernel.org>
2020-12-09USB: serial: option: add interface-number sanity check to flag handlingJohan Hovold
Add an interface-number sanity check before testing the device flags to avoid relying on undefined behaviour when left shifting in case a device uses an interface number greater than or equal to BITS_PER_LONG (i.e. 64 or 32). Reported-by: syzbot+8881b478dad0a7971f79@syzkaller.appspotmail.com Fixes: c3a65808f04a ("USB: serial: option: reimplement interface masking") Cc: stable@vger.kernel.org Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
generated by cgit (git 2.34.1) at 2025-09-15 13:40:22 +0000