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2022-08-19Merge tag 'sound-6.0-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "The only significant core change is ASoC DPCM fix for asymmetric setup; other remaining changes are device-specific fixes, including the hardening of string manipulations. One change in platform/x86 is the patch I forgot to apply from a series for CS35L41 codec" * tag 'sound-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (21 commits) ALSA: hda/realtek: Add quirk for Clevo NS50PU, NS70PU ALSA: info: Fix llseek return value when using callback ALSA: hda/cs8409: Support new Dolphin Variants platform/x86: serial-multi-instantiate: Add CLSA0101 Laptop ALSA: hda/realtek: Add quirk for Lenovo Yoga7 14IAL7 ALSA: hda: cs35l41: Clarify support for CSC3551 without _DSD Properties ALSA: hda/realtek: Add quirks for ASUS Zenbooks using CS35L41 ASoC: codec: tlv320aic32x4: fix mono playback via I2S ASoC: rt5640: Fix the JD voltage dropping issue ASoC: tas2770: Fix handling of mute/unmute ASoC: tas2770: Drop conflicting set_bias_level power setting ASoC: tas2770: Allow mono streams ASoC: tas2770: Set correct FSYNC polarity ASoC: Intel: fix sof_es8336 probe ASoC: DPCM: Don't pick up BE without substream ASoC: SOF: ipc3-topology: Fix clang -Wformat warning ASoC: sh: rz-ssi: Improve error handling in rz_ssi_probe() error path ASoC: SOF: Intel: hda: Fix potential buffer overflow by snprintf() ASoC: SOF: debug: Fix potential buffer overflow by snprintf() ASoC: Intel: avs: Fix potential buffer overflow by snprintf() ...
2022-08-19Merge tag 'drm-fixes-2022-08-19' of git://anongit.freedesktop.org/drm/drmLinus Torvalds
Pull drm fixes from Dave Airlie: "Regular weekly fixes. The nouveau patch just enables modesetting on GA103 hw which is like other ampere cards that are already supported. amdgpu has 2 weeks of fixes, as Alex was away, so a bit larger than usual, otherwise some i915 and misc other fixes. ttm: - NULL ptr dereference i915: - disable pci resize on 32-bit systems - don't leak the ccs state - TLB invalidation fixes nouveau: - GA103 enablement - off-by-one fix amdgpu: - Revert some DML stack changes - Rounding fixes in KFD allocations - atombios vram info table parsing fix - DCN 3.1.4 fixes - Clockgating fixes for various new IPs - SMU 13.0.4 fixes - DCN 3.1.4 FP fixes - TMDS fixes for YCbCr420 4k modes - DCN 3.2.x fixes - USB 4 fixes - SMU 13.0 fixes - SMU driver unload memory leak fixes - Display orientation fix - Regression fix for generic fbdev conversion - SDMA 6.x fixes - SR-IOV fixes - IH 6.x fixes - Use after free fix in bo list handling - Revert pipe1 support - XGMI hive reset fix amdkfd: - Fix potential crach in kfd_create_indirect_link_prop() imx: - warning fix meson: - refcounting fix lvds-codec: - error check fix sun4i: - underflow fix - dt-binding fix" * tag 'drm-fixes-2022-08-19' of git://anongit.freedesktop.org/drm/drm: (109 commits) Revert "drm/amd/amdgpu: add pipe1 hardware support" drm/amdgpu: Fix use-after-free on amdgpu_bo_list mutex drm/amdgpu: Fix interrupt handling on ih_soft ring drm/amdgpu: Add secure display TA load for Renoir drm/amd/display: Include scaling factor for SubVP command drm/amdgpu/vcn: Return void from the stop_dbg_mode drm/amdgpu: remove useless condition in amdgpu_job_stop_all_jobs_on_sched() drm/amdgpu: Add decode_iv_ts helper for ih_v6 block drm/amd/display: add chip revision to DCN32 drm/amd/display: avoid doing vm_init multiple time drm/amd/display: Use pitch when calculating size to cache in MALL drm/amd/display: Don't set DSC for phantom pipes drm/amd/display: Update clock table policy for DCN314 drm/amd/display: Modify header inclusion pattern drm/amd/display: Fix plug/unplug external monitor will hang while playback MPO video drm/amd/display: Add debug parameter to retain default clock table drm/amdgpu: Increase tlb flush timeout for sriov drm/amd/display: do not compare integers of different widths drm/amd/display: Add reserved dc_log_type. drm/amd/display: Fix pixel clock programming ...
2022-08-19Merge tag 'bitmap-6.0-rc2' of https://github.com/norov/linuxLinus Torvalds
Pull bitmap updates from Yury Norov: "cpumask: UP optimisation fixes follow-up As an older version of the UP optimisation fixes was merged, not all review feedback has been implemented. This implements the feedback received on the merged version [1], and the respin [2], for changes related to <linux/cpumask.h> and lib/cpumask.c" Link: https://lore.kernel.org/lkml/cover.1656777646.git.sander@svanheule.net/ [1] Link: https://lore.kernel.org/lkml/cover.1659077534.git.sander@svanheule.net/ [2] It spent for more than a week with no issues. * tag 'bitmap-6.0-rc2' of https://github.com/norov/linux: lib/cpumask: drop always-true preprocessor guard lib/cpumask: add inline cpumask_next_wrap() for UP cpumask: align signatures of UP implementations
2022-08-19cifs: move from strlcpy with unused retval to strscpyWolfram Sang
Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script. Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2022-08-19cifs: Fix memory leak on the deferred closeZhang Xiaoxu
xfstests on smb21 report kmemleak as below: unreferenced object 0xffff8881767d6200 (size 64): comm "xfs_io", pid 1284, jiffies 4294777434 (age 20.789s) hex dump (first 32 bytes): 80 5a d0 11 81 88 ff ff 78 8a aa 63 81 88 ff ff .Z......x..c.... 00 71 99 76 81 88 ff ff 00 00 00 00 00 00 00 00 .q.v............ backtrace: [<00000000ad04e6ea>] cifs_close+0x92/0x2c0 [<0000000028b93c82>] __fput+0xff/0x3f0 [<00000000d8116851>] task_work_run+0x85/0xc0 [<0000000027e14f9e>] do_exit+0x5e5/0x1240 [<00000000fb492b95>] do_group_exit+0x58/0xe0 [<00000000129a32d9>] __x64_sys_exit_group+0x28/0x30 [<00000000e3f7d8e9>] do_syscall_64+0x35/0x80 [<00000000102e8a0b>] entry_SYSCALL_64_after_hwframe+0x46/0xb0 When cancel the deferred close work, we should also cleanup the struct cifs_deferred_close. Fixes: 9e992755be8f2 ("cifs: Call close synchronously during unlink/rename/lease break.") Fixes: e3fc065682ebb ("cifs: Deferred close performance improvements") Cc: stable@vger.kernel.org Reviewed-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2022-08-19perf cpumap: Compute mask size in constant timeIan Rogers
perf_cpu_map__max() computes the cpumap's maximum value, no need to iterate over all values. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Colin Ian King <colin.king@intel.com> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: German Gomez <german.gomez@arm.com> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Kees Kook <keescook@chromium.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220614143353.1559597-4-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19perf cpumap: Synthetic events and const/staticIan Rogers
Make the cpumap arguments const to make it clearer they are in rather than out arguments. Make two functions static and remove external declarations. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Colin Ian King <colin.king@intel.com> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: German Gomez <german.gomez@arm.com> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Kees Kook <keescook@chromium.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220614143353.1559597-3-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19perf cpumap: Const map for max()Ian Rogers
Allows max() to be used with 'const struct perf_cpu_maps *'. Signed-off-by: Ian Rogers <irogers@google.com> Acked-by: Jiri Olsa <jolsa@kernel.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com> Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com> Cc: Colin Ian King <colin.king@intel.com> Cc: Dave Marchevsky <davemarchevsky@fb.com> Cc: German Gomez <german.gomez@arm.com> Cc: Gustavo A. R. Silva <gustavoars@kernel.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@arm.com> Cc: Kees Kook <keescook@chromium.org> Cc: Leo Yan <leo.yan@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Riccardo Mancini <rickyman7@gmail.com> Cc: Song Liu <songliubraving@fb.com> Cc: Stephane Eranian <eranian@google.com> Link: https://lore.kernel.org/r/20220614143353.1559597-2-irogers@google.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-08-19x86/mm: Use proper mask when setting PUD mappingAaron Lu
Commit c164fbb40c43f("x86/mm: thread pgprot_t through init_memory_mapping()") mistakenly used __pgprot() which doesn't respect __default_kernel_pte_mask when setting PUD mapping. Fix it by only setting the one bit we actually need (PSE) and leaving the other bits (that have been properly masked) alone. Fixes: c164fbb40c43 ("x86/mm: thread pgprot_t through init_memory_mapping()") Signed-off-by: Aaron Lu <aaron.lu@intel.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-08-19docs/ja_JP/SubmittingPatches: Remove reference to submitting-drivers.rstAkira Yokosawa
Reflect changes made in commit 9db370de2780 ("docs: process: remove outdated submitting-drivers.rst") Reported-by: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Akira Yokosawa <akiyks@gmail.com> Fixes: 9db370de2780 ("docs: process: remove outdated submitting-drivers.rst") Cc: Tsugikazu Shibata <shibata@linuxfoundation.org> Link: https://lore.kernel.org/r/20220818223440.13530-1-akiyks@gmail.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2022-08-19gpio: pxa: use devres for the clock structBartosz Golaszewski
The clock is never released after probe(). Use devres to not leak resources. Reported-by: Hulk Robot <hulkci@huawei.com> Reported-by: Yuan Can <yuancan@huawei.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
2022-08-19MAINTAINERS: rectify entry for XILINX GPIO DRIVERLukas Bulwahn
Commit ba96b2e7974b ("dt-bindings: gpio: gpio-xilinx: Convert Xilinx axi gpio binding to YAML") converts gpio-xilinx.txt to xlnx,gpio-xilinx.yaml, but missed to adjust its reference in MAINTAINERS. Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a broken reference. Repair this file reference in XILINX GPIO DRIVER. Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-08-19drm/gem: Fix GEM handle release errorsJeffy Chen
Currently we are assuming a one to one mapping between dmabuf and GEM handle when releasing GEM handles. But that is not always true, since we would create extra handles for the GEM obj in cases like gem_open() and getfb{,2}(). A similar issue was reported at: https://lore.kernel.org/all/20211105083308.392156-1-jay.xu@rock-chips.com/ Another problem is that the imported dmabuf might not always have gem_obj->dma_buf set, which would cause leaks in drm_gem_remove_prime_handles(). Let's fix these for now by using handle to find the exact map to remove. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220819072834.17888-1-jeffy.chen@rock-chips.com
2022-08-19KVM: selftests: Fix ambiguous mov in KVM_ASM_SAFE()David Matlack
Change the mov in KVM_ASM_SAFE() that zeroes @vector to a movb to make it unambiguous. This fixes a build failure with Clang since, unlike the GNU assembler, the LLVM integrated assembler rejects ambiguous X86 instructions that don't have suffixes: In file included from x86_64/hyperv_features.c:13: include/x86_64/processor.h:825:9: error: ambiguous instructions require an explicit suffix (could be 'movb', 'movw', 'movl', or 'movq') return kvm_asm_safe("wrmsr", "a"(val & -1u), "d"(val >> 32), "c"(msr)); ^ include/x86_64/processor.h:802:15: note: expanded from macro 'kvm_asm_safe' asm volatile(KVM_ASM_SAFE(insn) \ ^ include/x86_64/processor.h:788:16: note: expanded from macro 'KVM_ASM_SAFE' "1: " insn "\n\t" \ ^ <inline asm>:5:2: note: instantiated into assembly here mov $0, 15(%rsp) ^ It seems like this change could introduce undesirable behavior in the future, e.g. if someone used a type larger than a u8 for @vector, since KVM_ASM_SAFE() will only zero the bottom byte. I tried changing the type of @vector to an int to see what would happen. GCC failed to compile due to a size mismatch between `movb` and `%eax`. Clang succeeded in compiling, but the generated code looked correct, so perhaps it will not be an issue. That being said it seems like there could be a better solution to this issue that does not assume @vector is a u8. Fixes: 3b23054cd3f5 ("KVM: selftests: Add x86-64 support for exception fixup") Signed-off-by: David Matlack <dmatlack@google.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220722234838.2160385-3-dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: selftests: Fix KVM_EXCEPTION_MAGIC build with ClangDavid Matlack
Change KVM_EXCEPTION_MAGIC to use the all-caps "ULL", rather than lower case. This fixes a build failure with Clang: In file included from x86_64/hyperv_features.c:13: include/x86_64/processor.h:825:9: error: unexpected token in argument list return kvm_asm_safe("wrmsr", "a"(val & -1u), "d"(val >> 32), "c"(msr)); ^ include/x86_64/processor.h:802:15: note: expanded from macro 'kvm_asm_safe' asm volatile(KVM_ASM_SAFE(insn) \ ^ include/x86_64/processor.h:785:2: note: expanded from macro 'KVM_ASM_SAFE' "mov $" __stringify(KVM_EXCEPTION_MAGIC) ", %%r9\n\t" \ ^ <inline asm>:1:18: note: instantiated into assembly here mov $0xabacadabaull, %r9 ^ Fixes: 3b23054cd3f5 ("KVM: selftests: Add x86-64 support for exception fixup") Signed-off-by: David Matlack <dmatlack@google.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220722234838.2160385-2-dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: VMX: Heed the 'msr' argument in msr_write_intercepted()Jim Mattson
Regardless of the 'msr' argument passed to the VMX version of msr_write_intercepted(), the function always checks to see if a specific MSR (IA32_SPEC_CTRL) is intercepted for write. This behavior seems unintentional and unexpected. Modify the function so that it checks to see if the provided 'msr' index is intercepted for write. Fixes: 67f4b9969c30 ("KVM: nVMX: Handle dynamic MSR intercept toggling") Cc: Sean Christopherson <seanjc@google.com> Signed-off-by: Jim Mattson <jmattson@google.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220810213050.2655000-1-jmattson@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19kvm: x86: mmu: Always flush TLBs when enabling dirty loggingJunaid Shahid
When A/D bits are not available, KVM uses a software access tracking mechanism, which involves making the SPTEs inaccessible. However, the clear_young() MMU notifier does not flush TLBs. So it is possible that there may still be stale, potentially writable, TLB entries. This is usually fine, but can be problematic when enabling dirty logging, because it currently only does a TLB flush if any SPTEs were modified. But if all SPTEs are in access-tracked state, then there won't be a TLB flush, which means that the guest could still possibly write to memory and not have it reflected in the dirty bitmap. So just unconditionally flush the TLBs when enabling dirty logging. As an alternative, KVM could explicitly check the MMU-Writable bit when write-protecting SPTEs to decide if a flush is needed (instead of checking the Writable bit), but given that a flush almost always happens anyway, so just making it unconditional seems simpler. Signed-off-by: Junaid Shahid <junaids@google.com> Message-Id: <20220810224939.2611160-1-junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19kvm: x86: mmu: Drop the need_remote_flush() functionJunaid Shahid
This is only used by kvm_mmu_pte_write(), which no longer actually creates the new SPTE and instead just clears the old SPTE. So we just need to check if the old SPTE was shadow-present instead of calling need_remote_flush(). Hence we can drop this function. It was incomplete anyway as it didn't take access-tracking into account. This patch should not result in any functional change. Signed-off-by: Junaid Shahid <junaids@google.com> Reviewed-by: David Matlack <dmatlack@google.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220723024316.2725328-1-junaids@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19x86/nospec: Fix i386 RSB stuffingPeter Zijlstra
Turns out that i386 doesn't unconditionally have LFENCE, as such the loop in __FILL_RETURN_BUFFER isn't actually speculation safe on such chips. Fixes: ba6e31af2be9 ("x86/speculation: Add LFENCE to RSB fill sequence") Reported-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/Yv9tj9vbQ9nNlXoY@worktop.programming.kicks-ass.net
2022-08-19x86/nospec: Unwreck the RSB stuffingPeter Zijlstra
Commit 2b1299322016 ("x86/speculation: Add RSB VM Exit protections") made a right mess of the RSB stuffing, rewrite the whole thing to not suck. Thanks to Andrew for the enlightening comment about Post-Barrier RSB things so we can make this code less magical. Cc: stable@vger.kernel.org Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/YvuNdDWoUZSBjYcm@worktop.programming.kicks-ass.net
2022-08-19Merge tag 'kvmarm-fixes-6.0-1' of ↵Paolo Bonzini
git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD KVM/arm64 fixes for 6.0, take #1 - Fix unexpected sign extension of KVM_ARM_DEVICE_ID_MASK - Tidy-up handling of AArch32 on asymmetric systems
2022-08-19dt-bindings: usb: mtu3: add compatible for mt8188Chunfeng Yun
Add a new compatible for mt8188 Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/20220819081027.32382-1-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-19USB: cdc-acm: Add Icom PMR F3400 support (0c26:0020)Thierry GUIBERT
Supports for ICOM F3400 and ICOM F4400 PMR radios in CDC-ACM driver enabling the AT serial port. The Vendor Id is 0x0C26 The Product ID is 0x0020 Output of lsusb : Bus 001 Device 009: ID 0c26:0020 Prolific Technology Inc. ICOM Radio Couldn't open device, some information will be missing Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 2 Communications bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x0c26 Prolific Technology Inc. idProduct 0x0020 bcdDevice 0.00 iManufacturer 1 ICOM Inc. iProduct 2 ICOM Radio iSerial 3 *obfuscated* bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x0030 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 2 Communications bInterfaceSubClass 2 Abstract (modem) bInterfaceProtocol 1 AT-commands (v.25ter) iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 12 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 10 CDC Data bInterfaceSubClass 0 bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Signed-off-by: Thierry GUIBERT <thierry.guibert@croix-rouge.fr> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20220819081702.84118-1-thierry.guibert@croix-rouge.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-19usb: gadget: f_uac2: fix superspeed transferJing Leng
On page 362 of the USB3.2 specification ( https://usb.org/sites/default/files/usb_32_20210125.zip), The 'SuperSpeed Endpoint Companion Descriptor' shall only be returned by Enhanced SuperSpeed devices that are operating at Gen X speed. Each endpoint described in an interface is followed by a 'SuperSpeed Endpoint Companion Descriptor'. If users use SuperSpeed UDC, host can't recognize the device if endpoint doesn't have 'SuperSpeed Endpoint Companion Descriptor' followed. Currently in the uac2 driver code: 1. ss_epout_desc_comp follows ss_epout_desc; 2. ss_epin_fback_desc_comp follows ss_epin_fback_desc; 3. ss_epin_desc_comp follows ss_epin_desc; 4. Only ss_ep_int_desc endpoint doesn't have 'SuperSpeed Endpoint Companion Descriptor' followed, so we should add it. Fixes: eaf6cbe09920 ("usb: gadget: f_uac2: add volume and mute support") Cc: stable <stable@kernel.org> Signed-off-by: Jing Leng <jleng@ambarella.com> Signed-off-by: Jack Pham <quic_jackp@quicinc.com> Link: https://lore.kernel.org/r/20220721014815.14453-1-quic_jackp@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-19Revert "binder_alloc: Add missing mmap_lock calls when using the VMA"Greg Kroah-Hartman
This reverts commit d6f35446d0769a98e9d761593d267cdd24f09ecd. It is coming in through Andrew's tree instead, and for some reason we have different versions. I trust the version from Andrew more as the original offending commit came through his tree. Fixes: d6f35446d076 ("binder_alloc: Add missing mmap_lock calls when using the VMA") Cc: stable <stable@kernel.org> Cc: Ondrej Mosnacek <omosnace@redhat.com> Cc: Ondrej Mosnacek <omosnace@redhat.com> Cc: Carlos Llamas <cmllamas@google.com> Cc: Liam R. Howlett <Liam.Howlett@oracle.com> Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Link: https://lore.kernel.org/r/20220819184027.7b3fda3e@canb.auug.org.au Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-19usb: xhci-mtk: fix bandwidth release issueChunfeng Yun
This happens when @udev->reset_resume is set to true, when usb resume, the flow as below: - hub_resume - usb_disable_interface - usb_disable_endpoint - usb_hcd_disable_endpoint - xhci_endpoint_disable // it set @ep->hcpriv to NULL Then when reset usb device, it will drop allocated endpoints, the flow as below: - usb_reset_and_verify_device - usb_hcd_alloc_bandwidth - xhci_mtk_drop_ep but @ep->hcpriv is already set to NULL, the bandwidth will be not released anymore. Due to the added endponts are stored in hash table, we can drop the check of @ep->hcpriv. Fixes: 4ce186665e7c ("usb: xhci-mtk: Do not use xhci's virt_dev in drop_endpoint") Cc: stable <stable@kernel.org> Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Link: https://lore.kernel.org/r/20220819080556.32215-2-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-19usb: xhci-mtk: relax TT periodic bandwidth allocationChunfeng Yun
Currently uses the worst case byte budgets on FS/LS bus bandwidth, for example, for an isochronos IN endpoint with 192 bytes budget, it will consume the whole 5 uframes(188 * 5) while the actual FS bus budget should be just 192 bytes. It cause that many usb audio headsets with 3 interfaces (audio input, audio output, and HID) cannot be configured. To improve it, changes to use "approximate" best case budget for FS/LS bandwidth management. For the same endpoint from the above example, the approximate best case budget is now reduced to (188 * 2) bytes. Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com> Cc: stable <stable@kernel.org> Link: https://lore.kernel.org/r/20220819080556.32215-1-chunfeng.yun@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-19KVM: Drop unnecessary initialization of "ops" in kvm_ioctl_create_device()Li kunyu
The variable is initialized but it is only used after its assignment. Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Li kunyu <kunyu@nfschina.com> Message-Id: <20220819021535.483702-1-kunyu@nfschina.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: Drop unnecessary initialization of "npages" in hva_to_pfn_slow()Li kunyu
The variable is initialized but it is only used after its assignment. Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Li kunyu <kunyu@nfschina.com> Message-Id: <20220819022804.483914-1-kunyu@nfschina.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19x86/kvm: Fix "missing ENDBR" BUG for fastop functionsJosh Poimboeuf
The following BUG was reported: traps: Missing ENDBR: andw_ax_dx+0x0/0x10 [kvm] ------------[ cut here ]------------ kernel BUG at arch/x86/kernel/traps.c:253! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI <TASK> asm_exc_control_protection+0x2b/0x30 RIP: 0010:andw_ax_dx+0x0/0x10 [kvm] Code: c3 cc cc cc cc 0f 1f 44 00 00 66 0f 1f 00 48 19 d0 c3 cc cc cc cc 0f 1f 40 00 f3 0f 1e fa 20 d0 c3 cc cc cc cc 0f 1f 44 00 00 <66> 0f 1f 00 66 21 d0 c3 cc cc cc cc 0f 1f 40 00 66 0f 1f 00 21 d0 ? andb_al_dl+0x10/0x10 [kvm] ? fastop+0x5d/0xa0 [kvm] x86_emulate_insn+0x822/0x1060 [kvm] x86_emulate_instruction+0x46f/0x750 [kvm] complete_emulated_mmio+0x216/0x2c0 [kvm] kvm_arch_vcpu_ioctl_run+0x604/0x650 [kvm] kvm_vcpu_ioctl+0x2f4/0x6b0 [kvm] ? wake_up_q+0xa0/0xa0 The BUG occurred because the ENDBR in the andw_ax_dx() fastop function had been incorrectly "sealed" (converted to a NOP) by apply_ibt_endbr(). Objtool marked it to be sealed because KVM has no compile-time references to the function. Instead KVM calculates its address at runtime. Prevent objtool from annotating fastop functions as sealable by creating throwaway dummy compile-time references to the functions. Fixes: 6649fa876da4 ("x86/ibt,kvm: Add ENDBR to fastops") Reported-by: Pengfei Xu <pengfei.xu@intel.com> Debugged-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Message-Id: <0d4116f90e9d0c1b754bb90c585e6f0415a1c508.1660837839.git.jpoimboe@kernel.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19x86/kvm: Simplify FOP_SETCC()Josh Poimboeuf
SETCC_ALIGN and FOP_ALIGN are both 16. Remove the special casing for FOP_SETCC() and just make it a normal fastop. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Message-Id: <7c13d94d1a775156f7e36eed30509b274a229140.1660837839.git.jpoimboe@kernel.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19x86/ibt, objtool: Add IBT_NOSEAL()Josh Poimboeuf
Add a macro which prevents a function from getting sealed if there are no compile-time references to it. Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org> Message-Id: <20220818213927.e44fmxkoq4yj6ybn@treble> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: Rename mmu_notifier_* to mmu_invalidate_*Chao Peng
The motivation of this renaming is to make these variables and related helper functions less mmu_notifier bound and can also be used for non mmu_notifier based page invalidation. mmu_invalidate_* was chosen to better describe the purpose of 'invalidating' a page that those variables are used for. - mmu_notifier_seq/range_start/range_end are renamed to mmu_invalidate_seq/range_start/range_end. - mmu_notifier_retry{_hva} helper functions are renamed to mmu_invalidate_retry{_hva}. - mmu_notifier_count is renamed to mmu_invalidate_in_progress to avoid confusion with mn_active_invalidate_count. - While here, also update kvm_inc/dec_notifier_count() to kvm_mmu_invalidate_begin/end() to match the change for mmu_notifier_count. No functional change intended. Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com> Message-Id: <20220816125322.1110439-3-chao.p.peng@linux.intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: Rename KVM_PRIVATE_MEM_SLOTS to KVM_INTERNAL_MEM_SLOTSChao Peng
KVM_INTERNAL_MEM_SLOTS better reflects the fact those slots are KVM internally used (invisible to userspace) and avoids confusion to future private slots that can have different meaning. Signed-off-by: Chao Peng <chao.p.peng@linux.intel.com> Message-Id: <20220816125322.1110439-2-chao.p.peng@linux.intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: MIPS: remove unnecessary definition of KVM_PRIVATE_MEM_SLOTSPaolo Bonzini
KVM_PRIVATE_MEM_SLOTS defaults to zero, so it is not necessary to define it in MIPS's asm/kvm_host.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: Move coalesced MMIO initialization (back) into kvm_create_vm()Sean Christopherson
Invoke kvm_coalesced_mmio_init() from kvm_create_vm() now that allocating and initializing coalesced MMIO objects is separate from registering any associated devices. Moving coalesced MMIO cleans up the last oddity where KVM does VM creation/initialization after kvm_create_vm(), and more importantly after kvm_arch_post_init_vm() is called and the VM is added to the global vm_list, i.e. after the VM is fully created as far as KVM is concerned. Originally, kvm_coalesced_mmio_init() was called by kvm_create_vm(), but the original implementation was completely devoid of error handling. Commit 6ce5a090a9a0 ("KVM: coalesced_mmio: fix kvm_coalesced_mmio_init()'s error handling" fixed the various bugs, and in doing so rightly moved the call to after kvm_create_vm() because kvm_coalesced_mmio_init() also registered the coalesced MMIO device. Commit 2b3c246a682c ("KVM: Make coalesced mmio use a device per zone") cleaned up that mess by having each zone register a separate device, i.e. moved device registration to its logical home in kvm_vm_ioctl_register_coalesced_mmio(). As a result, kvm_coalesced_mmio_init() is now a "pure" initialization helper and can be safely called from kvm_create_vm(). Opportunstically drop the #ifdef, KVM provides stubs for kvm_coalesced_mmio_{init,free}() when CONFIG_KVM_MMIO=n (s390). Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220816053937.2477106-4-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: Unconditionally get a ref to /dev/kvm module when creating a VMSean Christopherson
Unconditionally get a reference to the /dev/kvm module when creating a VM instead of using try_get_module(), which will fail if the module is in the process of being forcefully unloaded. The error handling when try_get_module() fails doesn't properly unwind all that has been done, e.g. doesn't call kvm_arch_pre_destroy_vm() and doesn't remove the VM from the global list. Not removing VMs from the global list tends to be fatal, e.g. leads to use-after-free explosions. The obvious alternative would be to add proper unwinding, but the justification for using try_get_module(), "rmmod --wait", is completely bogus as support for "rmmod --wait", i.e. delete_module() without O_NONBLOCK, was removed by commit 3f2b9c9cdf38 ("module: remove rmmod --wait option.") nearly a decade ago. It's still possible for try_get_module() to fail due to the module dying (more like being killed), as the module will be tagged MODULE_STATE_GOING by "rmmod --force", i.e. delete_module(..., O_TRUNC), but playing nice with forced unloading is an exercise in futility and gives a falsea sense of security. Using try_get_module() only prevents acquiring _new_ references, it doesn't magically put the references held by other VMs, and forced unloading doesn't wait, i.e. "rmmod --force" on KVM is all but guaranteed to cause spectacular fireworks; the window where KVM will fail try_get_module() is tiny compared to the window where KVM is building and running the VM with an elevated module refcount. Addressing KVM's inability to play nice with "rmmod --force" is firmly out-of-scope. Forcefully unloading any module taints kernel (for obvious reasons) _and_ requires the kernel to be built with CONFIG_MODULE_FORCE_UNLOAD=y, which is off by default and comes with the amusing disclaimer that it's "mainly for kernel developers and desperate users". In other words, KVM is free to scoff at bug reports due to using "rmmod --force" while VMs may be running. Fixes: 5f6de5cbebee ("KVM: Prevent module exit until all VMs are freed") Cc: stable@vger.kernel.org Cc: David Matlack <dmatlack@google.com> Signed-off-by: Sean Christopherson <seanjc@google.com> Message-Id: <20220816053937.2477106-3-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-19KVM: Properly unwind VM creation if creating debugfs failsSean Christopherson
Properly unwind VM creation if kvm_create_vm_debugfs() fails. A recent change to invoke kvm_create_vm_debug() in kvm_create_vm() was led astray by buggy try_get_module() handling adding by commit 5f6de5cbebee ("KVM: Prevent module exit until all VMs are freed"). The debugfs error path effectively inherits the bad error path of try_module_get(), e.g. KVM leaves the to-be-free VM on vm_list even though KVM appears to do the right thing by calling module_put() and falling through. Opportunistically hoist kvm_create_vm_debugfs() above the call to kvm_arch_post_init_vm() so that the "post-init" arch hook is actually invoked after the VM is initialized (ignoring kvm_coalesced_mmio_init() for the moment). x86 is the only non-nop implementation of the post-init hook, and it doesn't allocate/initialize any objects that are reachable via debugfs code (spawns a kthread worker for the NX huge page mitigation). Leave the buggy try_get_module() alone for now, it will be fixed in a separate commit. Fixes: b74ed7a68ec1 ("KVM: Actually create debugfs in kvm_create_vm()") Reported-by: syzbot+744e173caec2e1627ee0@syzkaller.appspotmail.com Cc: Oliver Upton <oliver.upton@linux.dev> Signed-off-by: Sean Christopherson <seanjc@google.com> Reviewed-by: Oliver Upton <oliver.upton@linux.dev> Message-Id: <20220816053937.2477106-2-seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-08-18Merge tag 'net-6.0-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net Pull networking fixes from Jakub Kicinski: "Including fixes from netfilter. Current release - regressions: - tcp: fix cleanup and leaks in tcp_read_skb() (the new way BPF socket maps get data out of the TCP stack) - tls: rx: react to strparser initialization errors - netfilter: nf_tables: fix scheduling-while-atomic splat - net: fix suspicious RCU usage in bpf_sk_reuseport_detach() Current release - new code bugs: - mlxsw: ptp: fix a couple of races, static checker warnings and error handling Previous releases - regressions: - netfilter: - nf_tables: fix possible module reference underflow in error path - make conntrack helpers deal with BIG TCP (skbs > 64kB) - nfnetlink: re-enable conntrack expectation events - net: fix potential refcount leak in ndisc_router_discovery() Previous releases - always broken: - sched: cls_route: disallow handle of 0 - neigh: fix possible local DoS due to net iface start/stop loop - rtnetlink: fix module refcount leak in rtnetlink_rcv_msg - sched: fix adding qlen to qcpu->backlog in gnet_stats_add_queue_cpu - virtio_net: fix endian-ness for RSS - dsa: mv88e6060: prevent crash on an unused port - fec: fix timer capture timing in `fec_ptp_enable_pps()` - ocelot: stats: fix races, integer wrapping and reading incorrect registers (the change of register definitions here accounts for bulk of the changed LoC in this PR)" * tag 'net-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (77 commits) net: moxa: MAC address reading, generating, validity checking tcp: handle pure FIN case correctly tcp: refactor tcp_read_skb() a bit tcp: fix tcp_cleanup_rbuf() for tcp_read_skb() tcp: fix sock skb accounting in tcp_read_skb() igb: Add lock to avoid data race dt-bindings: Fix incorrect "the the" corrections net: genl: fix error path memory leak in policy dumping stmmac: intel: Add a missing clk_disable_unprepare() call in intel_eth_pci_remove() net: ethernet: mtk_eth_soc: fix possible NULL pointer dereference in mtk_xdp_run net/mlx5e: Allocate flow steering storage during uplink initialization net: mscc: ocelot: report ndo_get_stats64 from the wraparound-resistant ocelot->stats net: mscc: ocelot: keep ocelot_stat_layout by reg address, not offset net: mscc: ocelot: make struct ocelot_stat_layout array indexable net: mscc: ocelot: fix race between ndo_get_stats64 and ocelot_check_stats_work net: mscc: ocelot: turn stats_lock into a spinlock net: mscc: ocelot: fix address of SYS_COUNT_TX_AGING counter net: mscc: ocelot: fix incorrect ndo_get_stats64 packet counters net: dsa: felix: fix ethtool 256-511 and 512-1023 TX packet counters net: dsa: don't warn in dsa_port_set_state_now() when driver doesn't support it ...
2022-08-18Merge tag 'linux-kselftest-next-6.0-rc2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest fix from Shuah Khan: - fix landlock test build regression * tag 'linux-kselftest-next-6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/landlock: fix broken include of linux/landlock.h
2022-08-18Merge tag 'trace-rtla-v6.0' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull rtla tool fixes from Steven Rostedt: "Fixes for the Real-Time Linux Analysis tooling: - Fix tracer name in comments and prints - Fix setting up symlinks - Allow extra flags to be set in build - Consolidate and show all necessary libraries not found in build error" * tag 'trace-rtla-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: rtla: Consolidate and show all necessary libraries that failed for building tools/rtla: Build with EXTRA_{C,LD}FLAGS tools/rtla: Fix command symlinks rtla: Fix tracer name
2022-08-19Merge tag 'amd-drm-fixes-6.0-2022-08-17' of ↵Dave Airlie
https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.0-2022-08-17: amdgpu: - Revert some DML stack changes - Rounding fixes in KFD allocations - atombios vram info table parsing fix - DCN 3.1.4 fixes - Clockgating fixes for various new IPs - SMU 13.0.4 fixes - DCN 3.1.4 FP fixes - TMDS fixes for YCbCr420 4k modes - DCN 3.2.x fixes - USB 4 fixes - SMU 13.0 fixes - SMU driver unload memory leak fixes - Display orientation fix - Regression fix for generic fbdev conversion - SDMA 6.x fixes - SR-IOV fixes - IH 6.x fixes - Use after free fix in bo list handling - Revert pipe1 support - XGMI hive reset fix amdkfd: - Fix potential crach in kfd_create_indirect_link_prop() Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220818025206.6463-1-alexander.deucher@amd.com
2022-08-18riscv: traps: add missing prototypeConor Dooley
Sparse complains: arch/riscv/kernel/traps.c:213:6: warning: symbol 'shadow_stack' was not declared. Should it be static? The variable is used in entry.S, so declare shadow_stack there alongside SHADOW_OVERFLOW_STACK_SIZE. Fixes: 31da94c25aea ("riscv: add VMAP_STACK overflow detection") Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220814141237.493457-5-mail@conchuod.ie Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-18riscv: signal: fix missing prototype warningConor Dooley
Fix the warning: arch/riscv/kernel/signal.c:316:27: warning: no previous prototype for function 'do_notify_resume' [-Wmissing-prototypes] asmlinkage __visible void do_notify_resume(struct pt_regs *regs, All other functions in the file are static & none of the existing headers stood out as an obvious location. Create signal.h to hold the declaration. Fixes: e2c0cdfba7f6 ("RISC-V: User-facing API") Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220814141237.493457-4-mail@conchuod.ie Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-18bpf, cgroup: Fix kernel BUG in purge_effective_progsPu Lehui
Syzkaller reported a triggered kernel BUG as follows: ------------[ cut here ]------------ kernel BUG at kernel/bpf/cgroup.c:925! invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 1 PID: 194 Comm: detach Not tainted 5.19.0-14184-g69dac8e431af #8 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014 RIP: 0010:__cgroup_bpf_detach+0x1f2/0x2a0 Code: 00 e8 92 60 30 00 84 c0 75 d8 4c 89 e0 31 f6 85 f6 74 19 42 f6 84 28 48 05 00 00 02 75 0e 48 8b 80 c0 00 00 00 48 85 c0 75 e5 <0f> 0b 48 8b 0c5 RSP: 0018:ffffc9000055bdb0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff888100ec0800 RCX: ffffc900000f1000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff888100ec4578 RBP: 0000000000000000 R08: ffff888100ec0800 R09: 0000000000000040 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888100ec4000 R13: 000000000000000d R14: ffffc90000199000 R15: ffff888100effb00 FS: 00007f68213d2b80(0000) GS:ffff88813bc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f74a0e5850 CR3: 0000000102836000 CR4: 00000000000006e0 Call Trace: <TASK> cgroup_bpf_prog_detach+0xcc/0x100 __sys_bpf+0x2273/0x2a00 __x64_sys_bpf+0x17/0x20 do_syscall_64+0x3b/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f68214dbcb9 Code: 08 44 89 e0 5b 41 5c c3 66 0f 1f 84 00 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff8 RSP: 002b:00007ffeb487db68 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 000000000000000b RCX: 00007f68214dbcb9 RDX: 0000000000000090 RSI: 00007ffeb487db70 RDI: 0000000000000009 RBP: 0000000000000003 R08: 0000000000000012 R09: 0000000b00000003 R10: 00007ffeb487db70 R11: 0000000000000246 R12: 00007ffeb487dc20 R13: 0000000000000004 R14: 0000000000000001 R15: 000055f74a1011b0 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- Repetition steps: For the following cgroup tree, root | cg1 | cg2 1. attach prog2 to cg2, and then attach prog1 to cg1, both bpf progs attach type is NONE or OVERRIDE. 2. write 1 to /proc/thread-self/fail-nth for failslab. 3. detach prog1 for cg1, and then kernel BUG occur. Failslab injection will cause kmalloc fail and fall back to purge_effective_progs. The problem is that cg2 have attached another prog, so when go through cg2 layer, iteration will add pos to 1, and subsequent operations will be skipped by the following condition, and cg will meet NULL in the end. `if (pos && !(cg->bpf.flags[atype] & BPF_F_ALLOW_MULTI))` The NULL cg means no link or prog match, this is as expected, and it's not a bug. So here just skip the no match situation. Fixes: 4c46091ee985 ("bpf: Fix KASAN use-after-free Read in compute_effective_progs") Signed-off-by: Pu Lehui <pulehui@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220813134030.1972696-1-pulehui@huawei.com
2022-08-18perf: riscv legacy: fix kerneldoc comment warningConor Dooley
Fix the warning: drivers/perf/riscv_pmu_legacy.c:76: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst Fixes: 9b3e150e310e ("RISC-V: Add a simple platform driver for RISC-V legacy perf") Signed-off-by: Conor Dooley <conor.dooley@microchip.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20220812143532.1962623-1-conor.dooley@microchip.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-08-18usb: typec: altmodes/displayport: correct pin assignment for UFP receptaclesPablo Sun
Fix incorrect pin assignment values when connecting to a monitor with Type-C receptacle instead of a plug. According to specification, an UFP_D receptacle's pin assignment should came from the UFP_D pin assignments field (bit 23:16), while an UFP_D plug's assignments are described in the DFP_D pin assignments (bit 15:8) during Mode Discovery. For example the LG 27 UL850-W is a monitor with Type-C receptacle. The monitor responds to MODE DISCOVERY command with following DisplayPort Capability flag: dp->alt->vdo=0x140045 The existing logic only take cares of UPF_D plug case, and would take the bit 15:8 for this 0x140045 case. This results in an non-existing pin assignment 0x0 in dp_altmode_configure. To fix this problem a new set of macros are introduced to take plug/receptacle differences into consideration. Fixes: 0e3bb7d6894d ("usb: typec: Add driver for DisplayPort alternate mode") Cc: stable@vger.kernel.org Co-developed-by: Pablo Sun <pablo.sun@mediatek.com> Co-developed-by: Macpaul Lin <macpaul.lin@mediatek.com> Reviewed-by: Guillaume Ranquet <granquet@baylibre.com> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Pablo Sun <pablo.sun@mediatek.com> Signed-off-by: Macpaul Lin <macpaul.lin@mediatek.com> Link: https://lore.kernel.org/r/20220804034803.19486-1-macpaul.lin@mediatek.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-18ip_tunnel: Respect tunnel key's "flow_flags" in IP tunnelsEyal Birger
Commit 451ef36bd229 ("ip_tunnels: Add new flow flags field to ip_tunnel_key") added a "flow_flags" member to struct ip_tunnel_key which was later used by the commit in the fixes tag to avoid dropping packets with sources that aren't locally configured when set in bpf_set_tunnel_key(). VXLAN and GENEVE were made to respect this flag, ip tunnels like IPIP and GRE were not. This commit fixes this omission by making ip_tunnel_init_flow() receive the flow flags from the tunnel key in the relevant collect_md paths. Fixes: b8fff748521c ("bpf: Set flow flag to allow any source IP in bpf_tunnel_key") Signed-off-by: Eyal Birger <eyal.birger@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Paul Chaignon <paul@isovalent.com> Link: https://lore.kernel.org/bpf/20220818074118.726639-1-eyal.birger@gmail.com
2022-08-18usb: misc: onboard_usb_hub: Drop reset delay in onboard_hub_power_off()Matthias Kaehlcke
onboard_hub_power_off() currently has a delay after asserting the reset of the hub. There is already a delay in onboard_hub_power_on() before de-asserting the reset, which ensures that the reset is asserted for the required time, so the delay in _power_off() is not needed. Skip the reset GPIO check before calling gpiod_set_value_cansleep(), the function returns early when the GPIO descriptor is NULL. Reviewed-By: Alexander Stein <alexander.stein@ew.tq-group.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Matthias Kaehlcke <mka@chromium.org> Link: https://lore.kernel.org/r/20220805111836.1.Id5a4dc0a2c046236116693aa55672295513a0f2a@changeid Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-08-18usb: dwc3: gadget: Avoid duplicate requests to enable Run/StopWesley Cheng
Relocate the pullups_connected check until after it is ensured that there are no runtime PM transitions. If another context triggered the DWC3 core's runtime resume, it may have already enabled the Run/Stop. Do not re-run the entire pullup sequence again, as it may issue a core soft reset while Run/Stop is already set. This patch depends on commit 69e131d1ac4e ("usb: dwc3: gadget: Prevent repeat pullup()") Fixes: 77adb8bdf422 ("usb: dwc3: gadget: Allow runtime suspend if UDC unbinded") Cc: stable <stable@kernel.org> Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com> Link: https://lore.kernel.org/r/20220728020647.9377-1-quic_wcheng@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>