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d676a9e3d9efb7e93df460bcf4c445496c16314f
Analyze and fix the following issue in the Linux kernel code: scsi: qla2xxx: Remove increment of interface err cnt
Problem Details: Residual underrun is not an interface error, hence no need to increment that count. Fixes: dbf1f53cfd23 ("scsi: qla2xxx: Implementation to get and manage host, target stats and initiator port") Cc: stable@vger.kernel.org Signed-off-by: Saurav Kashyap <skashyap@marvell.com> Signed-off-by: Nilesh Javali...
```diff diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 759bea69de12..cbbd7014da93 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -3363,8 +3363,6 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) "Dropped fra...
3fbc74feb642deb688cc97f76d40b7287ddd4cb1
Analyze and fix the following issue in the Linux kernel code: scsi: qla2xxx: Fix erroneous link down
Problem Details: If after an adapter reset the appearance of link is not recovered, the devices are not rediscovered. This is result of a race condition between adapter reset (abort_isp) and the topology scan. During adapter reset, the ABORT_ISP_ACTIVE flag is set. Topology scan usually occurred after adapter reset....
```diff diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 36d3cecab20e..2d86f804872b 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -7094,9 +7094,12 @@ qla2x00_do_dpc(void *data) } } loop_resync_check: - if (test_and_clear_bit(LOOP_RESYNC_NEEDED...
7e8a936a2d0f98dd6e5d05d4838affabe606cabc
Analyze and fix the following issue in the Linux kernel code: scsi: qla2xxx: Remove unintended flag clearing
Problem Details: FCF_ASYNC_SENT flag is used in session management. This flag is cleared in task management path by accident. Remove unintended flag clearing. Fixes: 388a49959ee4 ("scsi: qla2xxx: Fix panic from use after free in qla2x00_async_tm_cmd") Cc: stable@vger.kernel.org Signed-off-by: Quinn Tran <qutran@marve...
```diff diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 745fee298d56..6968e8d08968 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -2082,7 +2082,6 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun, done_free_sp: /* ref: ...
40f5b1b9a4af2917f97bd98f277baebad8cde323
Analyze and fix the following issue in the Linux kernel code: scsi: qla2xxx: Fix stalled login
Problem Details: If a login failed due to low FW resources, the session can stall and will not be connected. Reset session state to allow relogin logic to redrive the connection. Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Reviewed-by: Himanshu Madhani <himanshu.ma...
```diff diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index fd27fb511479..745fee298d56 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -390,6 +390,12 @@ done_free_sp: fcport->flags &= ~FCF_ASYNC_SENT; done: fcport->flags &= ~FCF_ASYNC_ACTIVE; +...
5f63a163ed2f12c34dd4ae9b2757962ec7bb86e5
Analyze and fix the following issue in the Linux kernel code: scsi: qla2xxx: Fix exchange oversubscription for management commands
Problem Details: Add resource checking for management (non-I/O) commands. Fixes: 89c72f4245a8 ("scsi: qla2xxx: Add IOCB resource tracking") Signed-off-by: Quinn Tran <qutran@marvell.com> Signed-off-by: Nilesh Javali <njavali@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
```diff diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index 777808af5634..1925cc6897b6 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -235,7 +235,7 @@ qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused) uint16_t mb[MAX_IOCB_MB_REG]; int ...
41e5afe51f75f2858f5563145348f6c26d307b8f
Analyze and fix the following issue in the Linux kernel code: scsi: qla2xxx: Fix exchange oversubscription
Problem Details: In large environment, it is possible to experience command timeout and escalation of path recovery. Currently the driver does not track the number of exchanges/commands sent to FW. If there is a delay for commands at the head of the queue, then this will create back pressure for commands at the back of...
```diff diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index a26a373be9da..cd4eb11b0707 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -660,7 +660,7 @@ enum { struct iocb_resource { u8 res_type; - u8 pad; + u8 exch_cnt; u16 iocb_cnt; }; @@ -3...
c75e6aef5039830cce5d4cf764dd204522f89e6b
Analyze and fix the following issue in the Linux kernel code: scsi: qla2xxx: Fix DMA-API call trace on NVMe LS requests
Problem Details: The following message and call trace was seen with debug kernels: DMA-API: qla2xxx 0000:41:00.0: device driver failed to check map error [device address=0x00000002a3ff38d8] [size=1024 bytes] [mapped as single] WARNING: CPU: 0 PID: 2930 at kernel/dma/debug.c:1017 check_unmap+0xf42/0x1990 Call Trace:...
```diff diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index 02fdeb0d31ec..8927ddc5e69c 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -170,18 +170,6 @@ out: qla2xxx_rel_qpair_sp(sp->qpair, sp); } -static void qla_nvme_ls_unmap(struct srb *sp, ...
b1ae65c082f74536ec292b15766f2846f0238373
Analyze and fix the following issue in the Linux kernel code: scsi: qla2xxx: Fix link failure in NPIV environment
Problem Details: User experienced symptoms of adapter failure in NPIV environment. NPIV hosts were allowed to trigger chip reset back to back due to NPIV link state being slow to come online. Fix link failure in NPIV environment by removing NPIV host from directly being able to perform chip reset. kernel: qla2xxx [0...
```diff diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 7fb28c207ee5..36d3cecab20e 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -7447,7 +7447,7 @@ qla2x00_timer(struct timer_list *t) /* if the loop has been down for 4 minutes, reinit adapter */ ...
703bfd37101310ad5a6be09d5ff38c0e949ee8db
Analyze and fix the following issue in the Linux kernel code: selftests/xsk: add debug option for creating netdevs
Problem Details: Add a new option to the test_xsk.sh script that only creates the two veth netdevs and the extra namespace, then exits without running any tests. The failed test can then be executed in the debugger without having to create the netdevs and namespace manually. For ease-of-use, the veth netdevs to use are...
```diff diff --git a/tools/testing/selftests/bpf/test_xsk.sh b/tools/testing/selftests/bpf/test_xsk.sh index d821fd098504..cb315d85148b 100755 --- a/tools/testing/selftests/bpf/test_xsk.sh +++ b/tools/testing/selftests/bpf/test_xsk.sh @@ -74,6 +74,9 @@ # Run and dump packet contents: # sudo ./test_xsk.sh -D # +# S...
085dcccfb7d3dc52ed708fc588587f319541bc83
Analyze and fix the following issue in the Linux kernel code: selftests/xsk: print correct error codes when exiting
Problem Details: Print the correct error codes when exiting the test suite due to some terminal error. Some of these had a switched sign and some of them printed zero instead of errno. Fixes: facb7cb2e909 ("selftests/bpf: Xsk selftests - SKB POLL, NOPOLL") Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Ack...
```diff diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index a239e975ab66..72578cebfbf7 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -350,7 +350,7 @@ static bool ifobj_zc_avail(struct ifobject *ifobject) umem ...
2d0b2ae2871ae6d42a9f0a4280e0fb5bff8d38b8
Analyze and fix the following issue in the Linux kernel code: selftests/xsk: print correct payload for packet dump
Problem Details: Print the correct payload when the packet dump option is selected. The network to host conversion was forgotten and the payload was erronously declared to be an int instead of an unsigned int. Fixes: facb7cb2e909 ("selftests/bpf: Xsk selftests - SKB POLL, NOPOLL") Signed-off-by: Magnus Karlsson <magnu...
```diff diff --git a/tools/testing/selftests/bpf/xskxceiver.c b/tools/testing/selftests/bpf/xskxceiver.c index 162d3a516f2c..2ff43b22180f 100644 --- a/tools/testing/selftests/bpf/xskxceiver.c +++ b/tools/testing/selftests/bpf/xskxceiver.c @@ -767,7 +767,7 @@ static void pkt_dump(void *pkt, u32 len) struct ethhdr *eth...
5fbea42387eba1c7517fcad79099df706def7054
Analyze and fix the following issue in the Linux kernel code: bpf_doc: Fix build error with older python versions
Problem Details: The ability to subscript match result as an array is only available since python 3.6. Existing code in bpf_doc uses the older group() interface but commit 8a76145a2ec2 adds code using the new interface. Use the old interface consistently to avoid build error on older distributions like the below: + m...
```diff diff --git a/scripts/bpf_doc.py b/scripts/bpf_doc.py index e8d90829f23e..38d51e05c7a2 100755 --- a/scripts/bpf_doc.py +++ b/scripts/bpf_doc.py @@ -271,7 +271,7 @@ class HeaderParser(object): if capture: fn_defines_str += self.line helper_name = capture.expand(r'bpf...
19fa92fb72f8bc542f1673862058f3b078114004
Analyze and fix the following issue in the Linux kernel code: init/Kconfig: fix typo (usafe -> unsafe)
Problem Details: Fix the help text for the PRINTK_SAFE_LOG_BUF_SHIFT setting. Link: https://lkml.kernel.org/r/20230109201837.23873-1-eliasfleckenstein@web.de Signed-off-by: Lizzy Fleckenstein <eliasfleckenstein@web.de> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Cc: Masahiro Yamada <masahiroy@kernel.org> S...
```diff diff --git a/init/Kconfig b/init/Kconfig index 7e5c3ddc341d..57c8d224ea4c 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -776,7 +776,7 @@ config PRINTK_SAFE_LOG_BUF_SHIFT depends on PRINTK help Select the size of an alternate printk per-CPU buffer where messages - printed from usafe contexts are temp...
fd9edbdbdcde6b489ce59f326755ef16a2ffadd7
Analyze and fix the following issue in the Linux kernel code: nommu: fix split_vma() map_count error
Problem Details: During the maple tree conversion of nommu, an error in counting the VMAs was introduced by counting the existing VMA again. The counting used to be decremented by one and incremented by two, but now it only increments by two. Fix the counting error by moving the increment outside the setup_vma_to_mm(...
```diff diff --git a/mm/nommu.c b/mm/nommu.c index 844af5be7640..5b83938ecb67 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -559,7 +559,6 @@ void vma_mas_remove(struct vm_area_struct *vma, struct ma_state *mas) static void setup_vma_to_mm(struct vm_area_struct *vma, struct mm_struct *mm) { - mm->map_count++; vma->v...
80be727ec87225797771a39f3e6801baf291faaf
Analyze and fix the following issue in the Linux kernel code: nommu: fix do_munmap() error path
Problem Details: When removing a VMA from the tree fails due to no memory, do not free the VMA since a reference still exists. Link: https://lkml.kernel.org/r/20230109205708.956103-1-Liam.Howlett@oracle.com Fixes: 8220543df148 ("nommu: remove uses of VMA linked list") Signed-off-by: Liam R. Howlett <Liam.Howlett@oracl...
```diff diff --git a/mm/nommu.c b/mm/nommu.c index c8252f01d5db..844af5be7640 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1509,7 +1509,8 @@ int do_munmap(struct mm_struct *mm, unsigned long start, size_t len, struct list erase_whole_vma: if (delete_vma_from_mm(vma)) ret = -ENOMEM; - delete_vma(mm, vma); + else +...
7f31cced5724e6d414fe750aa1cd7e7b578ec22f
Analyze and fix the following issue in the Linux kernel code: nommu: fix memory leak in do_mmap() error path
Problem Details: The preallocation of the maple tree nodes may leak if the error path to "error_just_free" is taken. Fix this by moving the freeing of the maple tree nodes to a shared location for all error paths. Link: https://lkml.kernel.org/r/20230109205507.955577-1-Liam.Howlett@oracle.com Fixes: 8220543df148 ("no...
```diff diff --git a/mm/nommu.c b/mm/nommu.c index 214c70e1d059..c8252f01d5db 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1240,6 +1240,7 @@ share: error_just_free: up_write(&nommu_region_sem); error: + mas_destroy(&mas); if (region->vm_file) fput(region->vm_file); kmem_cache_free(vm_region_jar, region); @@ ...
5316a017d093f644675a56523bcf5787ba8f4fef
Analyze and fix the following issue in the Linux kernel code: proc: fix PIE proc-empty-vm, proc-pid-vm tests
Problem Details: vsyscall detection code uses direct call to the beginning of the vsyscall page: asm ("call %P0" :: "i" (0xffffffffff600000)) It generates "call rel32" instruction but it is not relocated if binary is PIE, so binary segfaults into random userspace address and vsyscall page status is detected incorrec...
```diff diff --git a/tools/testing/selftests/proc/proc-empty-vm.c b/tools/testing/selftests/proc/proc-empty-vm.c index d95b1cb43d9d..7588428b8fcd 100644 --- a/tools/testing/selftests/proc/proc-empty-vm.c +++ b/tools/testing/selftests/proc/proc-empty-vm.c @@ -25,6 +25,7 @@ #undef NDEBUG #include <assert.h> #include <...
0411d6ee50e3b74a793848e4f41f45860163f5cc
Analyze and fix the following issue in the Linux kernel code: include/linux/mm: fix release_pages_arg kernel doc comment
Problem Details: Commit 449c796768c9 ("mm: teach release_pages() to take an array of encoded page pointers too") added the kernel doc comment for release_pages() on top of 'union release_pages_arg', so making 'make htmldocs' complains as below: ./include/linux/mm.h:1268: warning: cannot understand function prototy...
```diff diff --git a/include/linux/mm.h b/include/linux/mm.h index f3f196e4d66d..8f857163ac89 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1270,10 +1270,10 @@ static inline void folio_put_refs(struct folio *folio, int refs) __folio_put(folio); } -/** - * release_pages - release an array of pages o...
0de4a7f5ba5744d1de5ce0b076bb73a86530c60c
Analyze and fix the following issue in the Linux kernel code: kasan: mark kasan_kunit_executing as static
Problem Details: Mark kasan_kunit_executing as static, as it is only used within mm/kasan/report.c. Link: https://lkml.kernel.org/r/f64778a4683b16a73bba72576f73bf4a2b45a82f.1672794398.git.andreyknvl@google.com Fixes: c8c7016f50c8 ("kasan: fail non-kasan KUnit tests on KASAN reports") Reported-by: kernel test robot <lk...
```diff diff --git a/mm/kasan/report.c b/mm/kasan/report.c index 1d02757e90a3..22598b20c7b7 100644 --- a/mm/kasan/report.c +++ b/mm/kasan/report.c @@ -119,7 +119,7 @@ EXPORT_SYMBOL_GPL(kasan_restore_multi_shot); * Whether the KASAN KUnit test suite is currently being executed. * Updated in kasan_test.c. */ -bool ...
7633355e5c7f29c049a9048e461427d1d8ed3051
Analyze and fix the following issue in the Linux kernel code: nilfs2: fix general protection fault in nilfs_btree_insert()
Problem Details: If nilfs2 reads a corrupted disk image and tries to reads a b-tree node block by calling __nilfs_btree_get_block() against an invalid virtual block address, it returns -ENOENT because conversion of the virtual block address to a disk block address fails. However, this return value is the same as the i...
```diff diff --git a/fs/nilfs2/btree.c b/fs/nilfs2/btree.c index b9d15c3df3cc..40ce92a332fe 100644 --- a/fs/nilfs2/btree.c +++ b/fs/nilfs2/btree.c @@ -480,9 +480,18 @@ static int __nilfs_btree_get_block(const struct nilfs_bmap *btree, __u64 ptr, ret = nilfs_btnode_submit_block(btnc, ptr, 0, REQ_OP_READ, &bh, &s...
1beb8ae302a01fb487787f5a4fb97cf5338a86c1
Analyze and fix the following issue in the Linux kernel code: Docs/admin-guide/mm/zswap: remove zsmalloc's lack of writeback warning
Problem Details: Writeback has been implemented for zsmalloc, so this warning no longer holds. Link: https://lkml.kernel.org/r/20230106220016.172303-1-nphamcs@gmail.com Fixes: 9997bc017549a ("zsmalloc: implement writeback mechanism for zsmalloc") Suggested-by: Thomas Weißschuh <linux@weissschuh.net> Signed-off-by: Nha...
```diff diff --git a/Documentation/admin-guide/mm/zswap.rst b/Documentation/admin-guide/mm/zswap.rst index f67de481c7f6..6dd74a18268b 100644 --- a/Documentation/admin-guide/mm/zswap.rst +++ b/Documentation/admin-guide/mm/zswap.rst @@ -70,9 +70,7 @@ e.g. ``zswap.zpool=zbud``. It can also be changed at runtime using the ...
fed15f1345dc8a7fc8baa81e8b55c3ba010d7f4b
Analyze and fix the following issue in the Linux kernel code: mm/hugetlb: pre-allocate pgtable pages for uffd wr-protects
Problem Details: Userfaultfd-wp uses pte markers to mark wr-protected pages for both shmem and hugetlb. Shmem has pre-allocation ready for markers, but hugetlb path was overlooked. Doing so by calling huge_pte_alloc() if the initial pgtable walk fails to find the huge ptep. It's possible that huge_pte_alloc() can fa...
```diff diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 2ce912c915eb..f96794be71d5 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6660,8 +6660,17 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma, spinlock_t *ptl; ptep = huge_pte_offset(mm, address, psize); if (!ptep) { - address |= last...
b30c14cd61025eeea2f2e8569606cd167ba9ad2d
Analyze and fix the following issue in the Linux kernel code: hugetlb: unshare some PMDs when splitting VMAs
Problem Details: PMD sharing can only be done in PUD_SIZE-aligned pieces of VMAs; however, it is possible that HugeTLB VMAs are split without unsharing the PMDs first. Without this fix, it is possible to hit the uffd-wp-related WARN_ON_ONCE in hugetlb_change_protection [1]. The key there is that hugetlb_unshare_all_p...
```diff diff --git a/mm/hugetlb.c b/mm/hugetlb.c index bd7d39227344..2ce912c915eb 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -94,6 +94,8 @@ static int hugetlb_acct_memory(struct hstate *h, long delta); static void hugetlb_vma_lock_free(struct vm_area_struct *vma); static void hugetlb_vma_lock_alloc(struct vm_are...
a1193de562f54c7c9f60ca9f2db96e50a7608de1
Analyze and fix the following issue in the Linux kernel code: mm: fix vma->anon_name memory leak for anonymous shmem VMAs
Problem Details: free_anon_vma_name() is missing a check for anonymous shmem VMA which leads to a memory leak due to refcount not being dropped. Fix this by calling anon_vma_name_put() unconditionally. It will free vma->anon_name whenever it's non-NULL. Link: https://lkml.kernel.org/r/20230105000241.1450843-1-surenb...
```diff diff --git a/include/linux/mm_inline.h b/include/linux/mm_inline.h index e8ed225d8f7c..ff3f3f23f649 100644 --- a/include/linux/mm_inline.h +++ b/include/linux/mm_inline.h @@ -413,8 +413,7 @@ static inline void free_anon_vma_name(struct vm_area_struct *vma) * Not using anon_vma_name because it generates a war...
3de0c269adc6c2fac0bb1fb11965f0de699dc32b
Analyze and fix the following issue in the Linux kernel code: mm/shmem: restore SHMEM_HUGE_DENY precedence over MADV_COLLAPSE
Problem Details: SHMEM_HUGE_DENY is for emergency use by the admin, to disable allocation of shmem huge pages if, for example, a dangerous bug is found in their usage: see "deny" in Documentation/mm/transhuge.rst. An app using madvise(,,MADV_COLLAPSE) should not be allowed to override it: restore its precedence over s...
```diff diff --git a/mm/shmem.c b/mm/shmem.c index c301487be5fb..0005ab2c29af 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -478,12 +478,10 @@ bool shmem_is_huge(struct vm_area_struct *vma, struct inode *inode, if (vma && ((vma->vm_flags & VM_NOHUGEPAGE) || test_bit(MMF_DISABLE_THP, &vma->vm_mm->flags))) retur...
52dc031088f00e323140ece4004e70c33153c6dd
Analyze and fix the following issue in the Linux kernel code: mm/MADV_COLLAPSE: don't expand collapse when vm_end is past requested end
Problem Details: MADV_COLLAPSE acts on one hugepage-aligned/sized region at a time, until it has collapsed all eligible memory contained within the bounds supplied by the user. At the top of each hugepage iteration we (re)lock mmap_lock and (re)validate the VMA for eligibility and update variables that might have chan...
```diff diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 9a0135b39b19..79be13133322 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -2647,7 +2647,7 @@ int madvise_collapse(struct vm_area_struct *vma, struct vm_area_struct **prev, goto out_nolock; } - hend = vma->vm_end & HPAGE_PMD_MASK; + hend ...
51d3d5eb74ff53b92dcff48b30ae2ed8edd85a32
Analyze and fix the following issue in the Linux kernel code: mm/userfaultfd: enable writenotify while userfaultfd-wp is enabled for a VMA
Problem Details: Currently, we don't enable writenotify when enabling userfaultfd-wp on a shared writable mapping (for now only shmem and hugetlb). The consequence is that vma->vm_page_prot will still include write permissions, to be set as default for all PTEs that get remapped (e.g., mprotect(), NUMA hinting, page m...
```diff diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c index 98ac37e34e3d..cc694846617a 100644 --- a/fs/userfaultfd.c +++ b/fs/userfaultfd.c @@ -108,6 +108,21 @@ static bool userfaultfd_is_initialized(struct userfaultfd_ctx *ctx) return ctx->features & UFFD_FEATURE_INITIALIZED; } +static void userfaultfd_set_vm_...
ab0c3f1251b4670978fde0bd54161795a139b060
Analyze and fix the following issue in the Linux kernel code: mm/khugepaged: fix collapse_pte_mapped_thp() to allow anon_vma
Problem Details: uprobe_write_opcode() uses collapse_pte_mapped_thp() to restore huge pmd, when removing a breakpoint from hugepage text: vma->anon_vma is always set in that case, so undo the prohibition. And MADV_COLLAPSE ought to be able to collapse some page tables in a vma which happens to have anon_vma set from C...
```diff diff --git a/mm/khugepaged.c b/mm/khugepaged.c index 5cb401aa2b9d..9a0135b39b19 100644 --- a/mm/khugepaged.c +++ b/mm/khugepaged.c @@ -1460,14 +1460,6 @@ int collapse_pte_mapped_thp(struct mm_struct *mm, unsigned long addr, if (!hugepage_vma_check(vma, vma->vm_flags, false, false, false)) return SCAN_VMA_C...
44f86392bdd165da7e43d3c772aeb1e128ffd6c8
Analyze and fix the following issue in the Linux kernel code: mm/hugetlb: fix uffd-wp handling for migration entries in hugetlb_change_protection()
Problem Details: We have to update the uffd-wp SWP PTE bit independent of the type of migration entry. Currently, if we're unlucky and we want to install/clear the uffd-wp bit just while we're migrating a read-only mapped hugetlb page, we would miss to set/clear the uffd-wp bit. Further, if we're processing a readabl...
```diff diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 3f0686b54701..bd7d39227344 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6662,10 +6662,9 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma, } else if (unlikely(is_hugetlb_entry_migration(pte))) { swp_entry_t entry = pte_to_swp_entry(pt...
0e678153f5be7e6c8d28835f5a678618da4b7a9c
Analyze and fix the following issue in the Linux kernel code: mm/hugetlb: fix PTE marker handling in hugetlb_change_protection()
Problem Details: Patch series "mm/hugetlb: uffd-wp fixes for hugetlb_change_protection()". Playing with virtio-mem and background snapshots (using uffd-wp) on hugetlb in QEMU, I managed to trigger a VM_BUG_ON(). Looking into the details, hugetlb_change_protection() seems to not handle uffd-wp correctly in all cases. ...
```diff diff --git a/mm/hugetlb.c b/mm/hugetlb.c index db895230ee7e..3f0686b54701 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -6658,10 +6658,8 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma, } pte = huge_ptep_get(ptep); if (unlikely(is_hugetlb_entry_hwpoisoned(pte))) { - spin_unloc...
f12cd06109f47c2fb4b23a45ab55404c47ef7fae
Analyze and fix the following issue in the Linux kernel code: powerpc/64s/hash: Make stress_hpt_timer_fn() static
Problem Details: stress_hpt_timer_fn() is only used in hash_utils.c, make it static. Fixes: 6b34a099faa1 ("powerpc/64s/hash: add stress_hpt kernel boot option to increase hash faults") Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kerne...
```diff diff --git a/arch/powerpc/mm/book3s64/hash_utils.c b/arch/powerpc/mm/book3s64/hash_utils.c index 80a148c57de8..44a35ed4f686 100644 --- a/arch/powerpc/mm/book3s64/hash_utils.c +++ b/arch/powerpc/mm/book3s64/hash_utils.c @@ -1012,7 +1012,7 @@ static void __init hash_init_partition_table(phys_addr_t hash_table, ...
99845faae7099cd704ebf67514c1157c26960a26
Analyze and fix the following issue in the Linux kernel code: drm: document better that drivers shouldn't use drm_minor directly
Problem Details: The documentation for struct drm_minor already states this, but that's not always that easy to find. Also due to historical reasons we still have the minor-centric interfaces (like drm_debugfs_create_files), but since this is now getting fixed we can put a few more pointers in place as to how this sho...
```diff diff --git a/include/drm/drm_device.h b/include/drm/drm_device.h index fa6af1d57929..282a171164ee 100644 --- a/include/drm/drm_device.h +++ b/include/drm/drm_device.h @@ -87,10 +87,23 @@ struct drm_device { */ void *dev_private; - /** @primary: Primary node */ + /** + * @primary: + * + * Primary node....
310bc39546a435c83cc27a0eba878afac0d74714
Analyze and fix the following issue in the Linux kernel code: KVM: x86/xen: Avoid deadlock by adding kvm->arch.xen.xen_lock leaf node lock
Problem Details: In commit 14243b387137a ("KVM: x86/xen: Add KVM_IRQ_ROUTING_XEN_EVTCHN and event channel delivery") the clever version of me left some helpful notes for those who would come after him: /* * For the irqfd workqueue, using the main kvm->lock mutex is * fine since this function is ...
```diff diff --git a/Documentation/virt/kvm/locking.rst b/Documentation/virt/kvm/locking.rst index 5ee017740d55..a0146793d197 100644 --- a/Documentation/virt/kvm/locking.rst +++ b/Documentation/virt/kvm/locking.rst @@ -39,7 +39,7 @@ For SRCU: On x86: -- vcpu->mutex is taken outside kvm->arch.hyperv.hv_lock +- vcpu...
a33ae832bf3f2ac33e2e44b99f76130d3be848c5
Analyze and fix the following issue in the Linux kernel code: docs/conf.py: Use about.html only in sidebar of alabaster theme
Problem Details: "about.html" is available only for the alabaster theme [1]. Unconditionally putting it to html_sidebars prevents us from using other themes which respect html_sidebars. Remove about.html from the initialization and insert it at the front for the alabaster theme. Link: [1] https://alabaster.readthedoc...
```diff diff --git a/Documentation/conf.py b/Documentation/conf.py index 44899be7b2cc..d927737e3c10 100644 --- a/Documentation/conf.py +++ b/Documentation/conf.py @@ -345,7 +345,11 @@ html_use_smartypants = False # Custom sidebar templates, maps document names to template names. # Note that the RTD theme ignores th...
0c2dece8fb541ab07b68c3312a1065fa9c927a81
Analyze and fix the following issue in the Linux kernel code: drm/amdkfd: Page aligned memory reserve size
Problem Details: Use page aligned size to reserve memory usage because page aligned TTM BO size is used to unreserve memory usage, otherwise no page aligned size causes memory usage accounting unbalanced. Change vram_used definition type to int64_t to be able to trigger WARN_ONCE(adev && adev->kfd.vram_used < 0, "..."...
```diff diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h index fb41869e357a..333780491867 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h @@ -97,7 +97,7 @@ struct amdgpu_amdkfd_fence { struct amdgpu_kfd_dev {...
1d4beeb4edc79b32cfedd07dab9cf59b6df2ee71
Analyze and fix the following issue in the Linux kernel code: selftests/filesystems: grant executable permission to run_fat_tests.sh
Problem Details: When use tools/testing/selftests/kselftest_install.sh to make the kselftest-list.txt under tools/testing/selftests/kselftest_install. Then use tools/testing/selftests/kselftest_install/run_kselftest.sh to run all the kselftests in kselftest-list.txt, it will be blocked by case "filesystems/fat: run_fa...
```diff diff --git a/tools/testing/selftests/filesystems/fat/run_fat_tests.sh b/tools/testing/selftests/filesystems/fat/run_fat_tests.sh old mode 100644 new mode 100755 ```
1878787797cbb019eeefe6f905514dcd557302b6
Analyze and fix the following issue in the Linux kernel code: alpha/boot/tools/objstrip: fix the check for ELF header
Problem Details: Just memcmp() with ELFMAG - that's the normal way to do it in userland code, which that thing is. Besides, that has the benefit of actually building - str_has_prefix() is *NOT* present in <string.h>. Fixes: 5f14596e55de "alpha: Replace strncmp with str_has_prefix" Signed-off-by: Al Viro <viro@zeniv.l...
```diff diff --git a/arch/alpha/boot/tools/objstrip.c b/arch/alpha/boot/tools/objstrip.c index 08b430d25a31..7cf92d172dce 100644 --- a/arch/alpha/boot/tools/objstrip.c +++ b/arch/alpha/boot/tools/objstrip.c @@ -148,7 +148,7 @@ main (int argc, char *argv[]) #ifdef __ELF__ elf = (struct elfhdr *) buf; - if (el...
e07f68d5e4f4d7570b065b5bdf4729268c9985ba
Analyze and fix the following issue in the Linux kernel code: alpha/boot: fix the breakage from -isystem series...
Problem Details: Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```diff diff --git a/arch/alpha/boot/bootp.c b/arch/alpha/boot/bootp.c index b4faba2432d5..842e85776cc0 100644 --- a/arch/alpha/boot/bootp.c +++ b/arch/alpha/boot/bootp.c @@ -18,7 +18,7 @@ #include <asm/hwrpb.h> #include <asm/io.h> -#include <stdarg.h> +#include <linux/stdarg.h> #include "ksize.h" diff --git a...
977a3009547dad4a5bc95d91be4a58c9f7eedac0
Analyze and fix the following issue in the Linux kernel code: alpha: fix FEN fault handling
Problem Details: Type 3 instruction fault (FPU insn with FPU disabled) is handled by quietly enabling FPU and returning. Which is fine, except that we need to do that both for fault in userland and in the kernel; the latter *can* legitimately happen - all it takes is this: .global _start _start: call_pal 0xae...
```diff diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c index 8a66fe544c69..d9a67b370e04 100644 --- a/arch/alpha/kernel/traps.c +++ b/arch/alpha/kernel/traps.c @@ -233,7 +233,21 @@ do_entIF(unsigned long type, struct pt_regs *regs) { int signo, code; - if ((regs->ps & ~IPL_MAX) == 0) { + if (typ...
1cb925c0863efcd8ed12ac3ac4a902386e6779f7
Analyze and fix the following issue in the Linux kernel code: nsfs: add compat ioctl handler
Problem Details: As all parameters and return values of the ioctls have the same representation on both 32bit and 64bit we can reuse the normal ioctl handler for the compat handler via compat_ptr_ioctl(). All nsfs ioctls return a plain "int" filedescriptor which is a signed 4-byte integer type on both 32bit and 64bit....
```diff diff --git a/fs/nsfs.c b/fs/nsfs.c index 3506f6074288..c28f69edef97 100644 --- a/fs/nsfs.c +++ b/fs/nsfs.c @@ -21,6 +21,7 @@ static long ns_ioctl(struct file *filp, unsigned int ioctl, static const struct file_operations ns_file_operations = { .llseek = no_llseek, .unlocked_ioctl = ns_ioctl, + .compat_ioc...
389d2c9926b3a81791e23a25fc1b85928139d40b
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: msm8916: Add DMA for all I2C controllers
Problem Details: i2c-qup allows using DMA to speed up larger transfers. In msm8916.dtsi the DMA channels are already assigned to the SPI controllers but missing for I2C. Add them there as well. This also fixes confusing errors in dmesg for each I2C controller: i2c_qup 78b6000.i2c: tx channel not available Signed-of...
```diff diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi index 6dbf5d6925e2..cf248e10660b 100644 --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi @@ -1559,6 +1559,8 @@ clocks = <&gcc GCC_BLSP1_QUP1_I2C_APPS_CLK>, <&gcc GCC_BLSP1_...
bfc7486991c2b1b514cee90854af0f90c56b6bf2
Analyze and fix the following issue in the Linux kernel code: clk: qcom: camcc-sm6350: Make camcc_sm6350_hws static
Problem Details: There's no reason for it not to be static, and some compilers don't like not it being that way. Make it so. Reported-by: kernel test robot <lkp@intel.com> Fixes: 80f5451d9a7c ("clk: qcom: Add camera clock controller driver for SM6350") Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Reviewed-b...
```diff diff --git a/drivers/clk/qcom/camcc-sm6350.c b/drivers/clk/qcom/camcc-sm6350.c index ea8600530046..acba9f99d960 100644 --- a/drivers/clk/qcom/camcc-sm6350.c +++ b/drivers/clk/qcom/camcc-sm6350.c @@ -1742,7 +1742,7 @@ static struct gdsc titan_top_gdsc = { .pwrsts = PWRSTS_OFF_ON, }; -struct clk_hw *camcc_sm...
d7a2d86837b9de8d378f040cfc9184905d82bd78
Analyze and fix the following issue in the Linux kernel code: dt-bindings: vendor-prefixes: Add GPLUS
Problem Details: Add vendor prefix for GPLUS. https://www.gplus.com.tw Signed-off-by: Lin, Meng-Bo <linmengbo0689@protonmail.com> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20230107133145.139731-1-linmengbo0689@pr...
```diff diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 70ffb3780621..5977d978fa67 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -512,6 +512,8 @@ patte...
1cd7565449de6e838ff5a3fa75fbd2ce58c6d955
Analyze and fix the following issue in the Linux kernel code: f2fs: add a f2fs_ prefix to punch_hole() and expand_inode_data()
Problem Details: For example, f2fs_collapse_range(), f2fs_collapse_range(), f2fs_insert_range(), the functions used in f2fs_fallocate() are all prefixed with f2fs_, so let's keep the name consistent. Signed-off-by: Yangtao Li <frank.li@vivo.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeu...
```diff diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c index bef0ee57e88d..58b4200f7fdf 100644 --- a/fs/f2fs/file.c +++ b/fs/f2fs/file.c @@ -1110,7 +1110,7 @@ int f2fs_truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end) return 0; } -static int punch_hole(struct inode *inode, loff_t offset, loff_t le...
85e79ec7b78f863178ca488fd8cb5b3de6347756
Analyze and fix the following issue in the Linux kernel code: btrfs: zoned: enable metadata over-commit for non-ZNS setup
Problem Details: The commit 79417d040f4f ("btrfs: zoned: disable metadata overcommit for zoned") disabled the metadata over-commit to track active zones properly. However, it also introduced a heavy overhead by allocating new metadata block groups and/or flushing dirty buffers to release the space reservations. Specif...
```diff diff --git a/fs/btrfs/fs.h b/fs/btrfs/fs.h index a749367e5ae2..37b86acfcbcf 100644 --- a/fs/btrfs/fs.h +++ b/fs/btrfs/fs.h @@ -119,6 +119,12 @@ enum { /* Indicate that we want to commit the transaction. */ BTRFS_FS_NEED_TRANS_COMMIT, + /* + * Indicate metadata over-commit is disabled. This is set when ac...
75181406b4eafacc531ff2ee5fb032bd93317e2b
Analyze and fix the following issue in the Linux kernel code: btrfs: qgroup: do not warn on record without old_roots populated
Problem Details: [BUG] There are some reports from the mailing list that since v6.1 kernel, the WARN_ON() inside btrfs_qgroup_account_extent() gets triggered during rescan: WARNING: CPU: 3 PID: 6424 at fs/btrfs/qgroup.c:2756 btrfs_qgroup_account_extents+0x1ae/0x260 [btrfs] CPU: 3 PID: 6424 Comm: snapperd Tainted: ...
```diff diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c index d275bf24b250..00851c86aa8a 100644 --- a/fs/btrfs/qgroup.c +++ b/fs/btrfs/qgroup.c @@ -2765,9 +2765,19 @@ int btrfs_qgroup_account_extents(struct btrfs_trans_handle *trans) /* * Old roots should be searched when inserting qgroup - * extent re...
ed02363fbbed52a3f5ea0d188edd09045a806eb5
Analyze and fix the following issue in the Linux kernel code: btrfs: add extra error messages to cover non-ENOMEM errors from device_add_list()
Problem Details: [BUG] When test case btrfs/219 (aka, mount a registered device but with a lower generation) failed, there is not any useful information for the end user to find out what's going wrong. The mount failure just looks like this: # mount -o loop /tmp/219.img2 /mnt/btrfs/ mount: /mnt/btrfs: mount(2) s...
```diff diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index aa25fa335d3e..bf0decaac7f3 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -768,8 +768,11 @@ static noinline struct btrfs_device *device_list_add(const char *path, BTRFS_SUPER_FLAG_CHANGING_FSID_V2); error = lookup_bdev(path, &path...
17549b0f184d870f2cfa4e5cfa79f4c4905ed757
Analyze and fix the following issue in the Linux kernel code: genirq: Add might_sleep() to disable_irq()
Problem Details: With the introduction of threaded interrupt handlers, it is virtually never safe to call disable_irq() from non-premptible context. Thus: Update the documentation, add an explicit might_sleep() to catch any offenders. This is more obvious and straight forward than the implicit might_sleep() check deep...
```diff diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 5b7cf28df290..8ce75495e04f 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -723,10 +723,13 @@ EXPORT_SYMBOL(disable_irq_nosync); * to complete before returning. If you use this function while * holding a resource the IRQ handler may ...
bbe17c625d6843e9cdf14d81fbece1b0f0c3fb2f
Analyze and fix the following issue in the Linux kernel code: KVM: x86/xen: Fix potential deadlock in kvm_xen_update_runstate_guest()
Problem Details: The kvm_xen_update_runstate_guest() function can be called when the vCPU is being scheduled out, from a preempt notifier. It *opportunistically* updates the runstate area in the guest memory, if the gfn_to_pfn_cache which caches the appropriate address is still valid. If there is *contention* when it ...
```diff diff --git a/arch/x86/kvm/xen.c b/arch/x86/kvm/xen.c index bfa9809721b5..651f9c5b873d 100644 --- a/arch/x86/kvm/xen.c +++ b/arch/x86/kvm/xen.c @@ -271,7 +271,15 @@ static void kvm_xen_update_runstate_guest(struct kvm_vcpu *v, bool atomic) * Attempt to obtain the GPC lock on *both* (if there are two) * gfn...
23e60258aeafb04e5dd813f03cb0c8ab7b01462a
Analyze and fix the following issue in the Linux kernel code: KVM: x86/xen: Fix lockdep warning on "recursive" gpc locking
Problem Details: In commit 5ec3289b31 ("KVM: x86/xen: Compatibility fixes for shared runstate area") we declared it safe to obtain two gfn_to_pfn_cache locks at the same time: /* * The guest's runstate_info is split across two pages and we * need to hold and validate both GPCs simultaneously. We can * declare a ...
```diff diff --git a/arch/x86/kvm/xen.c b/arch/x86/kvm/xen.c index 2e29bdc2949c..bfa9809721b5 100644 --- a/arch/x86/kvm/xen.c +++ b/arch/x86/kvm/xen.c @@ -304,8 +304,10 @@ static void kvm_xen_update_runstate_guest(struct kvm_vcpu *v, bool atomic) * The guest's runstate_info is split across two pages and we * ne...
3a9ae31ac26a58d33008c42f6cd022afc2af2dc0
Analyze and fix the following issue in the Linux kernel code: Documentation: kvm: fix SRCU locking order docs
Problem Details: kvm->srcu is taken in KVM_RUN and several other vCPU ioctls, therefore vcpu->mutex is susceptible to the same deadlock that is documented for kvm->slots_lock. The same holds for kvm->lock, since kvm->lock is held outside vcpu->mutex. Fix the documentation and rearrange it to highlight the difference ...
```diff diff --git a/Documentation/virt/kvm/locking.rst b/Documentation/virt/kvm/locking.rst index a3ca76f9be75..5ee017740d55 100644 --- a/Documentation/virt/kvm/locking.rst +++ b/Documentation/virt/kvm/locking.rst @@ -24,17 +24,18 @@ The acquisition orders for mutexes are as follows: For SRCU: -- ``synchronize_sr...
696e1a48b1a1b01edad542a1ef293665864a4dd0
Analyze and fix the following issue in the Linux kernel code: netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits
Problem Details: If the offset + length goes over the ethernet + vlan header, then the length is adjusted to copy the bytes that are within the boundaries of the vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet + vlan header are copied directly from the skbuff data area. Fix incorrect arithmetic operat...
```diff diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c index 17b418a5a593..3a3c7746e88f 100644 --- a/net/netfilter/nft_payload.c +++ b/net/netfilter/nft_payload.c @@ -63,7 +63,7 @@ nft_payload_copy_vlan(u32 *d, const struct sk_buff *skb, u8 offset, u8 len) return false; if (offset + len...
9ea4b476cea1b7d461d16dda25ca3c7e616e2d15
Analyze and fix the following issue in the Linux kernel code: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.
Problem Details: When first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of an arithmetic expression 2 << (netmask - mask_bits - 1) is subject to overflow due to a failure casting operands to a larger data type before performing the arithmetic. Note that it's harmless since the value will be checked at...
```diff diff --git a/net/netfilter/ipset/ip_set_bitmap_ip.c b/net/netfilter/ipset/ip_set_bitmap_ip.c index a8ce04a4bb72..e4fa00abde6a 100644 --- a/net/netfilter/ipset/ip_set_bitmap_ip.c +++ b/net/netfilter/ipset/ip_set_bitmap_ip.c @@ -308,8 +308,8 @@ bitmap_ip_create(struct net *net, struct ip_set *set, struct nlattr *...
c273289fac370b6488757236cd62cc2cf04830b7
Analyze and fix the following issue in the Linux kernel code: selftests: netfilter: fix transaction test script timeout handling
Problem Details: The kselftest framework uses a default timeout of 45 seconds for all test scripts. Increase the timeout to two minutes for the netfilter tests, this should hopefully be enough, Make sure that, should the script be canceled, the net namespace and the spawned ping instances are removed. Fixes: 25d8bce...
```diff diff --git a/tools/testing/selftests/netfilter/nft_trans_stress.sh b/tools/testing/selftests/netfilter/nft_trans_stress.sh index a7f62ad4f661..2ffba45a78bf 100755 --- a/tools/testing/selftests/netfilter/nft_trans_stress.sh +++ b/tools/testing/selftests/netfilter/nft_trans_stress.sh @@ -10,12 +10,20 @@ ksft_ski...
d46aa786fa53cbc92593089374e49c94fd9063ae
Analyze and fix the following issue in the Linux kernel code: block: use iter_ubuf for single range
Problem Details: This is more efficient than iter_iov. Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> [axboe: fold in iovec assumption fix] Signed-off-by: Jens Axboe <axboe@kernel.dk>
```diff diff --git a/block/blk-map.c b/block/blk-map.c index 19940c978c73..f2135e6ee8f6 100644 --- a/block/blk-map.c +++ b/block/blk-map.c @@ -31,7 +31,8 @@ static struct bio_map_data *bio_alloc_map_data(struct iov_iter *data, return NULL; memcpy(bmd->iov, data->iov, sizeof(struct iovec) * data->nr_segs); bmd->i...
cf129830ee820f7fc90b98df193cd49d49344d09
Analyze and fix the following issue in the Linux kernel code: perf auxtrace: Fix address filter duplicate symbol selection
Problem Details: When a match has been made to the nth duplicate symbol, return success not error. Example: Before: $ cat file.c cat: file.c: No such file or directory $ cat file1.c #include <stdio.h> static void func(void) { printf("First func\n"); } void other(void);...
```diff diff --git a/tools/perf/util/auxtrace.c b/tools/perf/util/auxtrace.c index 265d20cc126b..c2e323cd7d49 100644 --- a/tools/perf/util/auxtrace.c +++ b/tools/perf/util/auxtrace.c @@ -2611,7 +2611,7 @@ static int find_dso_sym(struct dso *dso, const char *sym_name, u64 *start, *size = sym->start - *start; if...
a66f1efcf748febea7758c4c3c8b5bc5294949ef
Analyze and fix the following issue in the Linux kernel code: drm/msm/gpu: Fix potential double-free
Problem Details: If userspace was calling the MSM_SET_PARAM ioctl on multiple threads to set the COMM or CMDLINE param, it could trigger a race causing the previous value to be kfree'd multiple times. Fix this by serializing on the gpu lock. Signed-off-by: Rob Clark <robdclark@chromium.org> Fixes: d4726d770068 ("drm/...
```diff diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 57586c794b84..3605f095b2de 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -352,6 +352,8 @@ int adreno_set_param(struct msm_gpu *gpu, struct msm_file_private...
e752e5454e6417da3f40ec1306a041ea96c56423
Analyze and fix the following issue in the Linux kernel code: adreno: Shutdown the GPU properly
Problem Details: During kexec on ARM device, we notice that device_shutdown() only calls pm_runtime_force_suspend() while shutting down the GPU. This means the GPU kthread is still running and further, there maybe active submits. This causes all kinds of issues during a kexec reboot: Warning from shutdown path: [ 2...
```diff diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c index 628806423f7d..36f062c7582f 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_device.c +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c @@ -551,13 +551,14 @@ static int adreno_bind(struct device *dev, struct d...
3cb0f23039e0e3395a96e0f52bd69910ced2f720
Analyze and fix the following issue in the Linux kernel code: ARM: 9284/1: include <asm/pgtable.h> from proc-macros.S to fix -Wundef warnings
Problem Details: Since commit 80b6093b55e3 ("kbuild: add -Wundef to KBUILD_CPPFLAGS for W=1 builds"), building with W=1 detects -Wundef warnings for assembly code. $ make W=1 ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- arch/arm/mm/ [snip] AS arch/arm/mm/cache-v7.o In file included from arch/arm/mm/ca...
```diff diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S index fa6999e24b07..e43f6d716b4b 100644 --- a/arch/arm/mm/proc-macros.S +++ b/arch/arm/mm/proc-macros.S @@ -6,6 +6,7 @@ * VM_EXEC */ #include <asm/asm-offsets.h> +#include <asm/pgtable.h> #include <asm/thread_info.h> #ifdef CONFIG_CPU_...
a4e03921c1bb118e6718e0a3b0322a2c13ed172b
Analyze and fix the following issue in the Linux kernel code: ARM: 9280/1: mm: fix warning on phys_addr_t to void pointer assignment
Problem Details: zero_page is a void* pointer but memblock_alloc() returns phys_addr_t type so this generates a warning while using clang and with -Wint-error enabled that becomes and error. So let's cast the return of memblock_alloc() to (void *). Cc: <stable@vger.kernel.org> # 4.14.x + Fixes: 340a982825f7 ("ARM: 926...
```diff diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c index c1494a4dee25..53f2d8774fdb 100644 --- a/arch/arm/mm/nommu.c +++ b/arch/arm/mm/nommu.c @@ -161,7 +161,7 @@ void __init paging_init(const struct machine_desc *mdesc) mpu_setup(); /* allocate the zero page. */ - zero_page = memblock_alloc(PAGE_SIZE...
b6e98cf4ed3baff0c2f7a1c1babf96fde8e129f3
Analyze and fix the following issue in the Linux kernel code: ASoC: tlv320aic3x: Add optional clock and port properties
Problem Details: Describe optional properties for clocks and ports that were missing in the original txt binding, to fix warnings like: aic33@18: 'assigned-clock-parents', 'assigned-clock-rates', 'assigned-clocks' do not match any of the regexes: 'pinctrl-[0-9]+' arch/arm/boot/dts/omap2420-n810.dtb tlv320aic3106@1...
```diff diff --git a/Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml b/Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml index f0375bbf4c40..e8ca9f3369f8 100644 --- a/Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml +++ b/Documentation/devicetree/bindings/sound/ti,tlv320aic3x.yaml @@ -1...
7bbb89b420d9e290cb34864832de8fcdf2c140dc
Analyze and fix the following issue in the Linux kernel code: driver core: change to_subsys_private() to use container_of_const()
Problem Details: The macro to_subsys_private() needs to switch to using container_of_const() as it turned out to being incorrectly casting a const pointer to a non-const one. Make this change and fix up the one offending user to be correctly handling a const pointer properly. Cc: "Rafael J. Wysocki" <rafael@kernel.or...
```diff diff --git a/drivers/base/base.h b/drivers/base/base.h index 7d4803c03d3e..2eb722d89f10 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -53,7 +53,7 @@ struct subsys_private { struct kset glue_dirs; struct class *class; }; -#define to_subsys_private(obj) container_of(obj, struct subsys_private...
3bb2a01caa813d3a1845d378bbe4169ef280d394
Analyze and fix the following issue in the Linux kernel code: kobject: Fix slab-out-of-bounds in fill_kobj_path()
Problem Details: In kobject_get_path(), if kobj->name is changed between calls get_kobj_path_length() and fill_kobj_path() and the length becomes longer, then fill_kobj_path() will have an out-of-bounds bug. The actual current problem occurs when the ixgbe probe. In ixgbe_mii_bus_init(), if the length of netdev->dev....
```diff diff --git a/lib/kobject.c b/lib/kobject.c index 985ee1c4f2c6..d20ce15eec2d 100644 --- a/lib/kobject.c +++ b/lib/kobject.c @@ -112,7 +112,7 @@ static int get_kobj_path_length(const struct kobject *kobj) return length; } -static void fill_kobj_path(const struct kobject *kobj, char *path, int length) +static...
f6837f34a34973ef6600c08195ed300e24e97317
Analyze and fix the following issue in the Linux kernel code: driver core: fix potential null-ptr-deref in device_add()
Problem Details: I got the following null-ptr-deref report while doing fault injection test: BUG: kernel NULL pointer dereference, address: 0000000000000058 CPU: 2 PID: 278 Comm: 37-i2c-ds2482 Tainted: G B W N 6.1.0-rc3+ RIP: 0010:klist_put+0x2d/0xd0 Call Trace: <TASK> klist_remove+0xf1/0x1c0 device_rel...
```diff diff --git a/drivers/base/core.c b/drivers/base/core.c index a3e14143ec0c..506289e6b04d 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -3513,6 +3513,7 @@ done: device_pm_remove(dev); dpm_sysfs_remove(dev); DPMError: + dev->driver = NULL; bus_remove_device(dev); BusError: device_remove...
58fc14e14d288d728bf48377b81bb77fd17bfe3f
Analyze and fix the following issue in the Linux kernel code: drm/i915/gt: Cover rest of SVG unit MCR registers
Problem Details: CHICKEN_RASTER_{1,2} got overlooked with the move done in commit a9e69428b1b4 ("drm/i915: Define MCR registers explicitly"). Registers from the SVG unit became multicast as of Xe_HP graphics. BSpec: 66534 Fixes: a9e69428b1b4 ("drm/i915: Define MCR registers explicitly") Signed-off-by: Gustavo Sousa <g...
```diff diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h index c3cd92691795..4a14f87e441e 100644 --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h @@ -406,10 +406,10 @@ #define GEN9_WM_CHICKEN3 _MMIO(0x5588) #define GEN9_FACTO...
b0975c47c2178e35038b12ad63f17c64bb522684
Analyze and fix the following issue in the Linux kernel code: printk: adjust string limit macros
Problem Details: The various internal size limit macros have names and/or values that do not fit well to their current usage. Rename the macros so that their purpose is clear and, if needed, provide a more appropriate value. In general, the new macros and values will lead to less memory usage. The new macros are... P...
```diff diff --git a/kernel/printk/internal.h b/kernel/printk/internal.h index 72df730597f1..2a17704136f1 100644 --- a/kernel/printk/internal.h +++ b/kernel/printk/internal.h @@ -15,19 +15,19 @@ int devkmsg_sysctl_set_loglvl(struct ctl_table *table, int write, #ifdef CONFIG_PRINTK #ifdef CONFIG_PRINTK_CALLER -#defi...
daaab5b5bba36a5aef790230b610556b9bbd9cfc
Analyze and fix the following issue in the Linux kernel code: printk: introduce struct printk_buffers
Problem Details: Introduce a new struct printk_buffers to contain all the buffers needed to read and format a printk message for output. Putting the buffers inside a struct reduces the number of buffer pointers that need to be tracked. Also, it allows usage of the sizeof() macro for the buffer sizes, rather than expect...
```diff diff --git a/kernel/printk/internal.h b/kernel/printk/internal.h index f394332410c9..6080d289a342 100644 --- a/kernel/printk/internal.h +++ b/kernel/printk/internal.h @@ -82,3 +82,13 @@ u16 printk_parse_prefix(const char *text, int *level, static inline bool printk_percpu_data_ready(void) { return false; } ...
82d3edb50a11bf3c5ef63294d5358ba230181413
Analyze and fix the following issue in the Linux kernel code: s390/cpum_sf: add READ_ONCE() semantics to compare and swap loops
Problem Details: The current cmpxchg_double() loops within the perf hw sampling code do not have READ_ONCE() semantics to read the old value from memory. This allows the compiler to generate code which reads the "old" value several times from memory, which again allows for inconsistencies. For example: /* Res...
```diff diff --git a/arch/s390/include/asm/cpu_mf.h b/arch/s390/include/asm/cpu_mf.h index feaba12dbecb..efa103b52a1a 100644 --- a/arch/s390/include/asm/cpu_mf.h +++ b/arch/s390/include/asm/cpu_mf.h @@ -131,19 +131,21 @@ struct hws_combined_entry { struct hws_diag_entry diag; /* Diagnostic-sampling data entry */ } _...
6b35b173dbc1711f8d272e3f322d2ad697015919
Analyze and fix the following issue in the Linux kernel code: spi: spidev: remove debug messages that access spidev->spi without locking
Problem Details: The two debug messages in spidev_open() dereference spidev->spi without taking the lock and without checking if it's not null. This can lead to a crash. Drop the messages as they're not needed - the user-space will get informed about ENOMEM with the syscall return value. Signed-off-by: Bartosz Golasze...
```diff diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 42aaaca67265..1935ca613447 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -603,7 +603,6 @@ static int spidev_open(struct inode *inode, struct file *filp) if (!spidev->tx_buffer) { spidev->tx_buffer = kmalloc(bufsiz, GFP_KERNEL)...
a720416d94634068951773cb9e9d6f1b73769e5b
Analyze and fix the following issue in the Linux kernel code: spi: spidev: fix a race condition when accessing spidev->spi
Problem Details: There's a spinlock in place that is taken in file_operations callbacks whenever we check if spidev->spi is still alive (not null). It's also taken when spidev->spi is set to NULL in remove(). This however doesn't protect the code against driver unbind event while one of the syscalls is still in progre...
```diff diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index 6313e7d0cdf8..42aaaca67265 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -68,7 +68,7 @@ static_assert(N_SPI_MINORS > 0 && N_SPI_MINORS <= 256); struct spidev_data { dev_t devt; - spinlock_t spi_lock; + struct mutex spi_loc...
cb3e9864cdbe35ff6378966660edbcbac955fe17
Analyze and fix the following issue in the Linux kernel code: ipv6: raw: Deduct extension header length in rawv6_push_pending_frames
Problem Details: The total cork length created by ip6_append_data includes extension headers, so we must exclude them when comparing them against the IPV6_CHECKSUM offset which does not include extension headers. Reported-by: Kyle Zeng <zengyhkyle@gmail.com> Fixes: 357b40a18b04 ("[IPV6]: IPV6_CHECKSUM socket option ca...
```diff diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index a06a9f847db5..ada087b50541 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -505,6 +505,7 @@ csum_copy_err: static int rawv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6, struct raw6_sock *rp) { + struct ipv6_txoptions *opt; struct s...
c65454a947263dfdf482076388aaed60af84ca2f
Analyze and fix the following issue in the Linux kernel code: fs: remove locks_inode
Problem Details: locks_inode was turned into a wrapper around file_inode in de2a4a501e71 (Partially revert "locks: fix file locking on overlayfs"). Finish replacing locks_inode invocations everywhere with file_inode. Acked-by: Miklos Szeredi <mszeredi@redhat.com> Acked-by: Al Viro <viro@zeniv.linux.org.uk> Reviewed-by...
```diff diff --git a/fs/afs/flock.c b/fs/afs/flock.c index bbcc5afd1576..9c6dea3139f5 100644 --- a/fs/afs/flock.c +++ b/fs/afs/flock.c @@ -451,7 +451,7 @@ static int afs_do_setlk_check(struct afs_vnode *vnode, struct key *key, */ static int afs_do_setlk(struct file *file, struct file_lock *fl) { - struct inode *ino...
b7d1f15b5c274999dfe8dda60a9a516eebfbc3d0
Analyze and fix the following issue in the Linux kernel code: x86/boot/e820: Fix typo in e820.c comment
Problem Details: change "itsmain" to "its main". Fixes: 544a0f47e780 ("x86/boot/e820: Rename e820_table_saved to e820_table_firmware and improve the description") Signed-off-by: Wang Yong <yongw.kernel@gmail.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: ht...
```diff diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index 9dac24680ff8..0614a79c4619 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -53,7 +53,7 @@ * * Once the E820 map has been converted to the standard Linux memory layout * information its role stops - modifying it has no e...
169dd78043f7f4eabdef8d7ba0d4ddffe5cb3930
Analyze and fix the following issue in the Linux kernel code: scripts: rpm: make clear that mkspec script contains 4.13 feature
Problem Details: A fix was made in the mkspec script that uses a feature, ie. the OR expression, which requires RPM 4.13. However, the script indicates another minimum version. Lower versions may have success by using the --no-deps option as suggested, but feels like bumping the version to 4.13 is reasonable as it put ...
```diff diff --git a/scripts/package/mkspec b/scripts/package/mkspec index adab28fa7f89..094e52c979a8 100755 --- a/scripts/package/mkspec +++ b/scripts/package/mkspec @@ -1,7 +1,7 @@ #!/bin/sh # # Output a simple RPM spec file. -# This version assumes a minimum of RPM 4.0.3. +# This version assumes a minimum of RPM ...
0f9c608d4a1eb852d6769d2fc5906c71c02565ae
Analyze and fix the following issue in the Linux kernel code: init/Kconfig: fix LOCALVERSION_AUTO help text
Problem Details: It was never guaranteed to be exactly eight, but since commit 548b8b5168c9 ("scripts/setlocalversion: make git describe output more reliable"), it has been exactly 12. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
```diff diff --git a/init/Kconfig b/init/Kconfig index 7e5c3ddc341d..ccd3cdcf3df1 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -204,7 +204,7 @@ config LOCALVERSION_AUTO appended after any matching localversion* files, and after the value set in CONFIG_LOCALVERSION. - (The actual string used here is the f...
6f515b663d49a14fb63f8c5d0a2a4ae53d44790a
Analyze and fix the following issue in the Linux kernel code: arm64: dts: rockchip: fix input enable pinconf on rk3399
Problem Details: When the input enable pinconf was introduced, a default drive-strength value of 2 was set for the pull up/down configs. However, this parameter is unneeded when configuring the pin as input, and having a single hardcoded value here is actually harmful: GPIOs on the RK3399 have various same drive-streng...
```diff diff --git a/arch/arm64/boot/dts/rockchip/rk3399.dtsi b/arch/arm64/boot/dts/rockchip/rk3399.dtsi index 834d16acb546..1881b4b71f91 100644 --- a/arch/arm64/boot/dts/rockchip/rk3399.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk3399.dtsi @@ -2241,13 +2241,11 @@ pcfg_input_pull_up: pcfg-input-pull-up { input-ena...
80422339a75088322b4d3884bd12fa0fe5d11050
Analyze and fix the following issue in the Linux kernel code: ARM: dts: rockchip: add power-domains property to dp node on rk3288
Problem Details: The clocks in the Rockchip rk3288 DisplayPort node are included in the power-domain@RK3288_PD_VIO logic, but the power-domains property in the dp node is missing, so fix it. Signed-off-by: Johan Jonker <jbx6244@gmail.com> Link: https://lore.kernel.org/r/dab85bfb-9f55-86a1-5cd5-7388c43e0ec5@gmail.com S...
```diff diff --git a/arch/arm/boot/dts/rk3288.dtsi b/arch/arm/boot/dts/rk3288.dtsi index 487b0e03d4b4..2ca76b69add7 100644 --- a/arch/arm/boot/dts/rk3288.dtsi +++ b/arch/arm/boot/dts/rk3288.dtsi @@ -1181,6 +1181,7 @@ clock-names = "dp", "pclk"; phys = <&edp_phy>; phy-names = "dp"; + power-domains = <&power RK...
3eb403e4014e2db8b00acb147c0bf0abb2df15e2
Analyze and fix the following issue in the Linux kernel code: arm64: dts: rockchip: Enable wifi module AP6398s for rk3566 box demo
Problem Details: There is a AP6398s wifi/bt module on this board. Fix the sdmmc1 dt node to make wifi work. Signed-off-by: Andy Yan <andyshrk@163.com> Link: https://lore.kernel.org/r/20221229115111.3899793-1-andyshrk@163.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
```diff diff --git a/arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts b/arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts index 4c7f9abd594f..8f3ac5ed7859 100644 --- a/arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts +++ b/arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts @@ -324,8 +324,12 @@ rockchip,pins = <2 RK_PB...
9554f023385825be4b1e3557398c82e25be83da4
Analyze and fix the following issue in the Linux kernel code: arm64: dts: rockchip: add io domain setting to rk3566-box-demo
Problem Details: Add the missing pmu_io_domains setting, the gmac can't work well without this. Fixes: 2e0537b16b25 ("arm64: dts: rockchip: Add dts for rockchip rk3566 box demo board") Signed-off-by: Andy Yan <andyshrk@163.com> Link: https://lore.kernel.org/r/20221229115043.3899733-1-andyshrk@163.com Signed-off-by: He...
```diff diff --git a/arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts b/arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts index 4c7f9abd594f..d956496d5221 100644 --- a/arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts +++ b/arch/arm64/boot/dts/rockchip/rk3566-box-demo.dts @@ -353,6 +353,17 @@ }; }; +&pmu_io_domains ...
906e822c0cac24f1b20d1377eb1203963f7af97e
Analyze and fix the following issue in the Linux kernel code: arm64: dts: rockchip: fix hdmi cec on rock-3a
Problem Details: HDMI CEC is configured to select HDMITX_CEC_M0 function of GPIO0_C7 by default in rk356x.dtsi. On Radxa ROCK 3 Model A it is routed to HDMITX_CEC_M1 according to board schematic [1]. Fix HDMI CEC by overriding pinctrl in hdmi node to select HDMITX_CEC_M1. [1] https://dl.radxa.com/rock3/docs/hw/3a/ROC...
```diff diff --git a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts index a1c5fdf7d68f..00d873a03cfe 100644 --- a/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts +++ b/arch/arm64/boot/dts/rockchip/rk3568-rock-3a.dts @@ -279,6 +279,8 @@ &hdmi { avdd-0v9-supply = <&vd...
64b69474edf3b885c19a89bb165f978ba1b4be00
Analyze and fix the following issue in the Linux kernel code: arm64: dts: rockchip: assign rate to clk_rtc_32k on rk356x
Problem Details: clk_rtc_32k and its child clock clk_hdmi_cec detauls to a rate of 24 MHz and not to 32 kHz on RK356x. Fix this by assigning clk_rtc_32k a rate of 32768, also assign the parent to clk_rtc32k_frac. Signed-off-by: Jonas Karlman <jonas@kwiboo.se> Link: https://lore.kernel.org/r/20230110225547.1563119-2-j...
```diff diff --git a/arch/arm64/boot/dts/rockchip/rk356x.dtsi b/arch/arm64/boot/dts/rockchip/rk356x.dtsi index 5706c3e24f0a..e319699f5e39 100644 --- a/arch/arm64/boot/dts/rockchip/rk356x.dtsi +++ b/arch/arm64/boot/dts/rockchip/rk356x.dtsi @@ -422,8 +422,9 @@ clock-names = "xin24m"; #clock-cells = <1>; #reset-c...
6fb13f888f2a6155fe4c19d14721e8909eda9b52
Analyze and fix the following issue in the Linux kernel code: arm64: dts: rockchip: Update sdhci alias for rock-5b
Problem Details: In the previous version, the sdhci alias was set to mmc1: an artifact leftover from the port from vendor kernel. Update the alias to mmc0 to match the device's boot order. Fixes: 6fb2d1549786 ("arm64: dts: rockchip: Add rock-5b board") Signed-off-by: Christopher Obbard <chris.obbard@collabora.com> Lin...
```diff diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts index d2f1e963ce06..95805cb0adfa 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts @@ -9,7 +9,7 @@ compatible = "radxa,rock-5b", "rock...
304c8a759953fb4a6cd399cf78f87501d7fd8bbc
Analyze and fix the following issue in the Linux kernel code: arm64: dts: rockchip: Remove empty line from rock-5a
Problem Details: There is a line which is empty. Remove it. Fixes: a4a8f1afb360 ("arm64: dts: rockchip: Add rock-5a board") Signed-off-by: Christopher Obbard <chris.obbard@collabora.com> Link: https://lore.kernel.org/r/20230110195352.272360-3-chris.obbard@collabora.com Signed-off-by: Heiko Stuebner <heiko@sntech.de>
```diff diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts index c85af1334c05..6432b586bf5a 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts @@ -52,7 +52,6 @@ rtl8211f_rst: rtl8211f-rst {...
991f136c9f8de181b25cef056ab5fe7f49413919
Analyze and fix the following issue in the Linux kernel code: arm64: dts: rockchip: Update sdhci alias for rock-5a
Problem Details: In the previous version, the sdhci alias was set to mmc1: an artifact leftover from the port from vendor kernel. Update the alias to mmc0 to match the device's boot order. Fixes: a4a8f1afb360 ("arm64: dts: rockchip: Add rock-5a board") Signed-off-by: Christopher Obbard <chris.obbard@collabora.com> Lin...
```diff diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts index 409a43d059d8..c85af1334c05 100644 --- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts +++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts @@ -11,7 +11,7 @@ compatible = "radxa,rock-5a",...
cd9f5c3d3096e26fa128ae747f66383002001398
Analyze and fix the following issue in the Linux kernel code: sched/cputime: Fix IA64 build error of missing arch_vtime_task_switch() prototype
Problem Details: The following commit: c89970202a11 ("cputime: remove cputime_to_nsecs fallback") Removed an <asm/cputime.h> inclusion from <linux/sched/cputime.h>, but this broke the IA64 build: arch/ia64/kernel/time.c:110:6: warning: no previous prototype for 'arch_vtime_task_switch' [-Wmissing-prototypes] ...
```diff diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index fa9c0ab8c6fc..83ef044b63ef 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -25,6 +25,7 @@ #include <linux/platform_device.h> #include <linux/sched/cputime.h> +#include <asm/cputime.h> #include <asm/delay.h> #include...
4e2ec2500bfc5cf429ddcfe78b49cb76b36bc46d
Analyze and fix the following issue in the Linux kernel code: drm/nouveau: Remove file nouveau_fbcon.c
Problem Details: Commit 4a16dd9d18a0 ("drm/nouveau/kms: switch to drm fbdev helpers") converted nouveau to generic fbdev emulation. The driver's internal implementation later got accidentally restored during a merge commit. Remove the file from the driver. No functional changes. v2: * point Fixes tag to merge commit ...
```diff diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c deleted file mode 100644 index e87de7906f78..000000000000 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ /dev/null @@ -1,613 +0,0 @@ -/* - * Copyright © 2007 David Airlie - * - * Permission is hereby granted, free ...
b0e380b5d4275299adf43e249f18309331b6f54f
Analyze and fix the following issue in the Linux kernel code: net: lan966x: check for ptp to be enabled in lan966x_ptp_deinit()
Problem Details: If ptp was not enabled due to missing IRQ for instance, lan966x_ptp_deinit() will dereference NULL pointers. Fixes: d096459494a8 ("net: lan966x: Add support for ptp clocks") Signed-off-by: Clément Léger <clement.leger@bootlin.com> Reviewed-by: Horatiu Vultur <horatiu.vultur@microchip.com> Reviewed-by:...
```diff diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_ptp.c b/drivers/net/ethernet/microchip/lan966x/lan966x_ptp.c index f9ebfaafbebc..a8348437dd87 100644 --- a/drivers/net/ethernet/microchip/lan966x/lan966x_ptp.c +++ b/drivers/net/ethernet/microchip/lan966x/lan966x_ptp.c @@ -1073,6 +1073,9 @@ void lan966...
7124c93887cc4e6c5b48920f83115e4a5892e870
Analyze and fix the following issue in the Linux kernel code: phy: ti: fix Kconfig warning and operator precedence
Problem Details: Fix Kconfig depends operator precedence to prevent a Kconfig warning: WARNING: unmet direct dependencies detected for MUX_MMIO Depends on [n]: MULTIPLEXER [=m] && OF [=n] Selected by [m]: - PHY_AM654_SERDES [=m] && (OF [=n] && ARCH_K3 || COMPILE_TEST [=y]) && COMMON_CLK [=y] Fixes: 71e2f5c5c224...
```diff diff --git a/drivers/phy/ti/Kconfig b/drivers/phy/ti/Kconfig index 15a3bcf32308..b905902d5750 100644 --- a/drivers/phy/ti/Kconfig +++ b/drivers/phy/ti/Kconfig @@ -23,7 +23,7 @@ config PHY_DM816X_USB config PHY_AM654_SERDES tristate "TI AM654 SERDES support" - depends on OF && ARCH_K3 || COMPILE_TEST + depe...
76d588dddc459fefa1da96e0a081a397c5c8e216
Analyze and fix the following issue in the Linux kernel code: powerpc/imc-pmu: Fix use of mutex in IRQs disabled section
Problem Details: Current imc-pmu code triggers a WARNING with CONFIG_DEBUG_ATOMIC_SLEEP and CONFIG_PROVE_LOCKING enabled, while running a thread_imc event. Command to trigger the warning: # perf stat -e thread_imc/CPM_CS_FROM_L4_MEM_X_DPTEG/ sleep 5 Performance counter stats for 'sleep 5': 0 ...
```diff diff --git a/arch/powerpc/include/asm/imc-pmu.h b/arch/powerpc/include/asm/imc-pmu.h index 4f897993b710..699a88584ae1 100644 --- a/arch/powerpc/include/asm/imc-pmu.h +++ b/arch/powerpc/include/asm/imc-pmu.h @@ -137,7 +137,7 @@ struct imc_pmu { * are inited. */ struct imc_pmu_ref { - struct mutex lock; + sp...
3287ebd7fd01e853ca4da8be675322429400e2bd
Analyze and fix the following issue in the Linux kernel code: powerpc/boot: Fix incorrect version calculation issue in ld_version
Problem Details: The ld_version() function computes the wrong version value for certain ld versions such as the following: $ ld --version GNU ld (GNU Binutils; SUSE Linux Enterprise 15) 2.37.20211103-150100.7.37 For input 2.37.20211103, the value computed is 202348030000 which is higher than the value for a lat...
```diff diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper index af04cea82b94..352d7de24018 100755 --- a/arch/powerpc/boot/wrapper +++ b/arch/powerpc/boot/wrapper @@ -210,6 +210,10 @@ ld_version() gsub(".*version ", ""); gsub("-.*", ""); split($1,a, "."); + if( length(a[3]) == "8" ) + # a[3] is p...
0e414518d6d881075f0c944b365078b8049fcc2f
Analyze and fix the following issue in the Linux kernel code: net/mlx5e: Add hairpin debugfs files
Problem Details: We refer to a TC NIC rule that involves forwarding as "hairpin". Hairpin queues are mlx5 hardware specific implementation for hardware forwarding of such packets. For debug purposes, introduce debugfs files which: * Expose the number of active hairpins * Dump the hairpin table * Allow control over the...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 800442eaf9b4..99a7edb88661 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -100,6 +100,7 @@ struct mlx5e_tc_table { struct ...
0fedee1ae9efccd424882f929c3905f0790e12ec
Analyze and fix the following issue in the Linux kernel code: net/mlx5e: kTLS, Add debugfs
Problem Details: Add TLS debugfs to improve observability by exposing the size of the tls TX pool. To observe the size of the TX pool: $ cat /sys/kernel/debug/mlx5/<pci>/nic/tls/tx/pool_size Signed-off-by: Tariq Toukan <tariqt@nvidia.com> Co-developed-by: Gal Pressman <gal@nvidia.com> Signed-off-by: Gal Pressman <gal...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c index da2184c94203..eb5b09f81dec 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c @@ -1,6 +1,7 @@ // S...
288eca60cc31471670dcd351cc42c03a38e11983
Analyze and fix the following issue in the Linux kernel code: net/mlx5e: Add Ethernet driver debugfs
Problem Details: Similar to the mlx5_core debugfs, lay the groundwork for mlx5e debugfs files under /sys/kernel/debug/mlx5/<pci>/nic/.. Signed-off-by: Gal Pressman <gal@nvidia.com> Reviewed-by: Tariq Toukan <tariqt@nvidia.com> Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
```diff diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 2d77fb8a8a01..7cbd71f0b8ae 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -968,6 +968,7 @@ struct mlx5e_priv { struct mlx5e_scratchpad...
a440030d8946bfe3fd44b6da685e33ffe0ecd1ff
Analyze and fix the following issue in the Linux kernel code: net/mlx5e: Update shared buffer along with device buffer changes
Problem Details: Currently, the user can modify device's receive buffer size, modify the mapping between QoS priority groups to buffers and change the buffer state to become lossy/lossless via pfc command. However, the shared receive buffer pool alignments, as a result of such commands, is performed only when the shar...
```diff diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c b/drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c index c9d5d8d93994..57f4b1b50421 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/port_buffer.c @@ -73,6 +73,7 @@...
2fe58d977ee05da5bb89ef5dc4f5bf2dc15db46f
Analyze and fix the following issue in the Linux kernel code: cifs: fix potential memory leaks in session setup
Problem Details: Make sure to free cifs_ses::auth_key.response before allocating it as we might end up leaking memory in reconnect or mounting. Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz> Signed-off-by: Steve French <stfrench@microsoft.com>
```diff diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c index 5db73c0f792a..cbc18b4a9cb2 100644 --- a/fs/cifs/cifsencrypt.c +++ b/fs/cifs/cifsencrypt.c @@ -278,6 +278,7 @@ build_avpair_blob(struct cifs_ses *ses, const struct nls_table *nls_cp) * ( for NTLMSSP_AV_NB_DOMAIN_NAME followed by NTLMSSP_AV_EOL )...
22aeb01db7080e18c6aeb4361cc2556c9887099a
Analyze and fix the following issue in the Linux kernel code: cifs: do not query ifaces on smb1 mounts
Problem Details: Users have reported the following error on every 600 seconds (SMB_INTERFACE_POLL_INTERVAL) when mounting SMB1 shares: CIFS: VFS: \\srv\share error -5 on ioctl to get interface list It's supported only by SMB2+, so do not query network interfaces on SMB1 mounts. Fixes: 6e1c1c08cdf3 ("cifs: periodica...
```diff diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index d371259d6808..b2a04b4e89a5 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2606,11 +2606,14 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb3_fs_context *ctx) INIT_LIST_HEAD(&tcon->pending_opens); tcon->status = TID_GOOD; - /* schedule q...
1de4e112b97c77efb5cbee39db8541e33dd2b0d5
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: msm8996-oneplus-common: drop vdda-supply from DSI PHY
Problem Details: 14nm DSI PHY has the only supply, vcca. Drop the extra vdda-supply. Fixes: 5a134c940cd3 ("arm64: dts: qcom: msm8996: add support for oneplus3(t)") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Bjorn Andersson <anderss...
```diff diff --git a/arch/arm64/boot/dts/qcom/msm8996-oneplus-common.dtsi b/arch/arm64/boot/dts/qcom/msm8996-oneplus-common.dtsi index 20f5c103c63b..2994337c6046 100644 --- a/arch/arm64/boot/dts/qcom/msm8996-oneplus-common.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8996-oneplus-common.dtsi @@ -179,7 +179,6 @@ }; &dsi0_...
4ce03bb80faed41e04b7d6f089275d262f4cfc79
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sdm845-tama: Add volume up and camera GPIO keys
Problem Details: Tama has four GPIO-wired keys: two for camera focus and shutter / snapshot, and two more for volume up and down. As per the comment these used to not work because the necessary pin bias was missing, which is now set via pinctrl on pm8998_gpios. The missing bias has also been added to the existing vol...
```diff diff --git a/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi b/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi index 68773a7e0e88..85ff0a0789ea 100644 --- a/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi +++ b/arch/arm64/boot/dts/qcom/sdm845-sony-xperia-tama.dtsi @@ -4,6 +4,7 @@ */ #incl...
19e509d5ea229244b9205f8671bb75b13738a1f9
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sdm845: make DP node follow the schema
Problem Details: Drop the #clock-cells (probably a leftover from the times before the DP PHY split) Fixes: eaac4e55a6f4 ("arm64: dts: qcom: sdm845: add displayport node") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Bjorn...
```diff diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi index 198b654ff179..0f1cb2c8addd 100644 --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi @@ -4534,7 +4534,6 @@ <&dispcc DISP_CC_MDSS_DP_PIXEL_CLK>; clock-names = "core_iface"...
d8b4ee9379e4b6df44bbaf6020461514b401b8f6
Analyze and fix the following issue in the Linux kernel code: arm64: dts: qcom: sm8250: Pad addresses to 8 hex digits
Problem Details: Some addresses were 7-hex-digits long. Fix that. Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> Signed-off-by: Bjorn Andersson <andersson@kernel.org> Link: https://lore.kernel.org/r/20221230135044.287874-1-konrad.dybcio@linaro.org
```diff diff --git a/arch/arm64/boot/dts/qcom/sm8250.dtsi b/arch/arm64/boot/dts/qcom/sm8250.dtsi index dab5579946f3..65c37ecaaca5 100644 --- a/arch/arm64/boot/dts/qcom/sm8250.dtsi +++ b/arch/arm64/boot/dts/qcom/sm8250.dtsi @@ -2272,7 +2272,7 @@ pinctrl-names = "default"; pinctrl-0 = <&rx_swr_active>; compat...