summaryrefslogtreecommitdiff
path: root/lib
AgeCommit message (Collapse)AuthorFilesLines
2022-08-12lib: remove lib/nodemask.cYury Norov1-23/+0
Commit 36d4b36b6959 ("lib/nodemask: inline next_node_in() and node_random()") removed the lib/nodemask.c file, but the remove didn't happen when the patch was applied. Reported-by: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com> Signed-off-by: Yury Norov <yury.norov@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-08-09Merge tag 'pull-work.iov_iter-rebased' of ↵Linus Torvalds1-455/+371
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull more iov_iter updates from Al Viro: - more new_sync_{read,write}() speedups - ITER_UBUF introduction - ITER_PIPE cleanups - unification of iov_iter_get_pages/iov_iter_get_pages_alloc and switching them to advancing semantics - making ITER_PIPE take high-order pages without splitting them - handling copy_page_from_iter() for high-order pages properly * tag 'pull-work.iov_iter-rebased' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (32 commits) fix copy_page_from_iter() for compound destinations hugetlbfs: copy_page_to_iter() can deal with compound pages copy_page_to_iter(): don't split high-order page in case of ITER_PIPE expand those iov_iter_advance()... pipe_get_pages(): switch to append_pipe() get rid of non-advancing variants ceph: switch the last caller of iov_iter_get_pages_alloc() 9p: convert to advancing variant of iov_iter_get_pages_alloc() af_alg_make_sg(): switch to advancing variant of iov_iter_get_pages() iter_to_pipe(): switch to advancing variant of iov_iter_get_pages() block: convert to advancing variants of iov_iter_get_pages{,_alloc}() iov_iter: advancing variants of iov_iter_get_pages{,_alloc}() iov_iter: saner helper for page array allocation fold __pipe_get_pages() into pipe_get_pages() ITER_XARRAY: don't open-code DIV_ROUND_UP() unify the rest of iov_iter_get_pages()/iov_iter_get_pages_alloc() guts unify xarray_get_pages() and xarray_get_pages_alloc() unify pipe_get_pages() and pipe_get_pages_alloc() iov_iter_get_pages(): sanity-check arguments iov_iter_get_pages_alloc(): lift freeing pages array on failure exits into wrapper ...
2022-08-09fix copy_page_from_iter() for compound destinationsAl Viro1-4/+18
had been broken for ITER_BVEC et.al. since ever (OK, v3.17 when ITER_BVEC had first appeared)... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09copy_page_to_iter(): don't split high-order page in case of ITER_PIPEAl Viro1-15/+6
... just shove it into one pipe_buffer. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09expand those iov_iter_advance()...Al Viro1-2/+9
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09pipe_get_pages(): switch to append_pipe()Al Viro1-29/+6
now that we are advancing the iterator, there's no need to treat the first page separately - just call append_pipe() in a loop. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09get rid of non-advancing variantsAl Viro1-9/+18
mechanical change; will be further massaged in subsequent commits Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09iov_iter: saner helper for page array allocationAl Viro1-45/+32
All call sites of get_pages_array() are essenitally identical now. Replace with common helper... Returns number of slots available in resulting array or 0 on OOM; it's up to the caller to make sure it doesn't ask to zero-entry array (i.e. neither maxpages nor size are allowed to be zero). Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09fold __pipe_get_pages() into pipe_get_pages()Al Viro1-37/+38
... and don't mangle maxsize there - turn the loop into counting one instead. Easier to see that we won't run out of array that way. Note that special treatment of the partial buffer in that thing is an artifact of the non-advancing semantics of iov_iter_get_pages() - if not for that, it would be append_pipe(), same as the body of the loop that follows it. IOW, once we make iov_iter_get_pages() advancing, the whole thing will turn into calculate how many pages do we want allocate an array (if needed) call append_pipe() that many times. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_XARRAY: don't open-code DIV_ROUND_UP()Al Viro1-9/+1
Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09unify the rest of iov_iter_get_pages()/iov_iter_get_pages_alloc() gutsAl Viro1-59/+27
same as for pipes and xarrays; after that iov_iter_get_pages() becomes a wrapper for __iov_iter_get_pages_alloc(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09unify xarray_get_pages() and xarray_get_pages_alloc()Al Viro1-39/+10
same as for pipes Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09unify pipe_get_pages() and pipe_get_pages_alloc()Al Viro1-32/+17
The differences between those two are * pipe_get_pages() gets a non-NULL struct page ** value pointing to preallocated array + array size. * pipe_get_pages_alloc() gets an address of struct page ** variable that contains NULL, allocates the array and (on success) stores its address in that variable. Not hard to combine - always pass struct page ***, have the previous pipe_get_pages_alloc() caller pass ~0U as cap for array size. Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09iov_iter_get_pages(): sanity-check argumentsAl Viro1-7/+2
zero maxpages is bogus, but best treated as "just return 0"; NULL pages, OTOH, should be treated as a hard bug. get rid of now completely useless checks in xarray_get_pages{,_alloc}(). Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09iov_iter_get_pages_alloc(): lift freeing pages array on failure exits into ↵Al Viro1-16/+22
wrapper Incidentally, ITER_XARRAY did *not* free the sucker in case when iter_xarray_populate_pages() returned 0... Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_PIPE: fold data_start() and pipe_space_for_user() togetherAl Viro1-25/+19
All their callers are next to each other; all of them want the total amount of pages and, possibly, the offset in the partial final buffer. Combine into a new helper (pipe_npages()), fix the bogosity in pipe_space_for_user(), while we are at it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_PIPE: cache the type of last bufferAl Viro1-39/+38
We often need to find whether the last buffer is anon or not, and currently it's rather clumsy: check if ->iov_offset is non-zero (i.e. that pipe is not empty) if so, get the corresponding pipe_buffer and check its ->ops if it's &default_pipe_buf_ops, we have an anon buffer. Let's replace the use of ->iov_offset (which is nowhere near similar to its role for other flavours) with signed field (->last_offset), with the following rules: empty, no buffers occupied: 0 anon, with bytes up to N-1 filled: N zero-copy, with bytes up to N-1 filled: -N That way abs(i->last_offset) is equal to what used to be in i->iov_offset and empty vs. anon vs. zero-copy can be distinguished by the sign of i->last_offset. Checks for "should we extend the last buffer or should we start a new one?" become easier to follow that way. Note that most of the operations can only be done in a sane state - i.e. when the pipe has nothing past the current position of iterator. About the only thing that could be done outside of that state is iov_iter_advance(), which transitions to the sane state by truncating the pipe. There are only two cases where we leave the sane state: 1) iov_iter_get_pages()/iov_iter_get_pages_alloc(). Will be dealt with later, when we make get_pages advancing - the callers are actually happier that way. 2) iov_iter copied, then something is put into the copy. Since they share the underlying pipe, the original gets behind. When we decide that we are done with the copy (original is not usable until then) we advance the original. direct_io used to be done that way; nowadays it operates on the original and we do iov_iter_revert() to discard the excessive data. At the moment there's nothing in the kernel that could do that to ITER_PIPE iterators, so this reason for insane state is theoretical right now. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_PIPE: clean iov_iter_revert()Al Viro1-46/+14
Fold pipe_truncate() into it, clean up. We can release buffers in the same loop where we walk backwards to the iterator beginning looking for the place where the new position will be. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_PIPE: clean pipe_advance() upAl Viro1-17/+17
instead of setting ->iov_offset for new position and calling pipe_truncate() to adjust ->len of the last buffer and discard everything after it, adjust ->len at the same time we set ->iov_offset and use pipe_discard_from() to deal with buffers past that. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_PIPE: lose iter_head argument of __pipe_get_pages()Al Viro1-4/+3
it's only used to get to the partial buffer we can add to, and that's always the last one, i.e. pipe->head - 1. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_PIPE: fold push_pipe() into __pipe_get_pages()Al Viro1-55/+25
Expand the only remaining call of push_pipe() (in __pipe_get_pages()), combine it with the page-collecting loop there. Note that the only reason it's not a loop doing append_pipe() is that append_pipe() is advancing, while iov_iter_get_pages() is not. As soon as it switches to saner semantics, this thing will switch to using append_pipe(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_PIPE: allocate buffers as we go in copy-to-pipe primitivesAl Viro1-73/+98
New helper: append_pipe(). Extends the last buffer if possible, allocates a new one otherwise. Returns page and offset in it on success, NULL on failure. iov_iter is advanced past the data we've got. Use that instead of push_pipe() in copy-to-pipe primitives; they get simpler that way. Handling of short copy (in "mc" one) is done simply by iov_iter_revert() - iov_iter is in consistent state after that one, so we can use that. [Fix for braino caught by Liu Xinpeng <liuxp11@chinatelecom.cn> folded in] [another braino fix, this time in copy_pipe_to_iter() and pipe_zero(); caught by testcase from Hugh Dickins] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_PIPE: helpers for adding pipe buffersAl Viro1-42/+46
There are only two kinds of pipe_buffer in the area used by ITER_PIPE. 1) anonymous - copy_to_iter() et.al. end up creating those and copying data there. They have zero ->offset, and their ->ops points to default_pipe_page_ops. 2) zero-copy ones - those come from copy_page_to_iter(), and page comes from caller. ->offset is also caller-supplied - it might be non-zero. ->ops points to page_cache_pipe_buf_ops. Move creation and insertion of those into helpers - push_anon(pipe, size) and push_page(pipe, page, offset, size) resp., separating them from the "could we avoid creating a new buffer by merging with the current head?" logics. Acked-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09ITER_PIPE: helper for getting pipe buffer by indexAl Viro1-6/+9
pipe_buffer instances of a pipe are organized as a ring buffer, with power-of-2 size. Indices are kept *not* reduced modulo ring size, so the buffer refered to by index N is pipe->bufs[N & (pipe->ring_size - 1)]. Ring size can change over the lifetime of a pipe, but not while the pipe is locked. So for any iov_iter primitives it's a constant. Original conversion of pipes to this layout went overboard trying to microoptimize that - calculating pipe->ring_size - 1, storing it in a local variable and using through the function. In some cases it might be warranted, but most of the times it only obfuscates what's going on in there. Introduce a helper (pipe_buf(pipe, N)) that would encapsulate that and use it in the obvious cases. More will follow... Reviewed-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-09new iov_iter flavour - ITER_UBUFAl Viro1-18/+69
Equivalent of single-segment iovec. Initialized by iov_iter_ubuf(), checked for by iter_is_ubuf(), otherwise behaves like ITER_IOVEC ones. We are going to expose the things like ->write_iter() et.al. to those in subsequent commits. New predicate (user_backed_iter()) that is true for ITER_IOVEC and ITER_UBUF; places like direct-IO handling should use that for checking that pages we modify after getting them from iov_iter_get_pages() would need to be dirtied. DO NOT assume that replacing iter_is_iovec() with user_backed_iter() will solve all problems - there's code that uses iter_is_iovec() to decide how to poke around in iov_iter guts and for that the predicate replacement obviously won't suffice. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2022-08-08Merge tag 'bitmap-6.0-rc1' of https://github.com/norov/linuxLinus Torvalds5-105/+81
Pull bitmap updates from Yury Norov: - fix the duplicated comments on bitmap_to_arr64() (Qu Wenruo) - optimize out non-atomic bitops on compile-time constants (Alexander Lobakin) - cleanup bitmap-related headers (Yury Norov) - x86/olpc: fix 'logical not is only applied to the left hand side' (Alexander Lobakin) - lib/nodemask: inline wrappers around bitmap (Yury Norov) * tag 'bitmap-6.0-rc1' of https://github.com/norov/linux: (26 commits) lib/nodemask: inline next_node_in() and node_random() powerpc: drop dependency on <asm/machdep.h> in archrandom.h x86/olpc: fix 'logical not is only applied to the left hand side' lib/cpumask: move some one-line wrappers to header file headers/deps: mm: align MANITAINERS and Docs with new gfp.h structure headers/deps: mm: Split <linux/gfp_types.h> out of <linux/gfp.h> headers/deps: mm: Optimize <linux/gfp.h> header dependencies lib/cpumask: move trivial wrappers around find_bit to the header lib/cpumask: change return types to unsigned where appropriate cpumask: change return types to bool where appropriate lib/bitmap: change type of bitmap_weight to unsigned long lib/bitmap: change return types to bool where appropriate arm: align find_bit declarations with generic kernel iommu/vt-d: avoid invalid memory access via node_online(NUMA_NO_NODE) lib/test_bitmap: test the tail after bitmap_to_arr64() lib/bitmap: fix off-by-one in bitmap_to_arr64() lib: test_bitmap: add compile-time optimization/evaluations assertions bitmap: don't assume compiler evaluates small mem*() builtins calls net/ice: fix initializing the bitmap in the switch code bitops: let optimize out non-atomic bitops on compile-time constants ...
2022-08-07Merge tag 'mm-nonmm-stable-2022-08-06-2' of ↵Linus Torvalds19-85/+261
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc updates from Andrew Morton: "Updates to various subsystems which I help look after. lib, ocfs2, fatfs, autofs, squashfs, procfs, etc. A relatively small amount of material this time" * tag 'mm-nonmm-stable-2022-08-06-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (72 commits) scripts/gdb: ensure the absolute path is generated on initial source MAINTAINERS: kunit: add David Gow as a maintainer of KUnit mailmap: add linux.dev alias for Brendan Higgins mailmap: update Kirill's email profile: setup_profiling_timer() is moslty not implemented ocfs2: fix a typo in a comment ocfs2: use the bitmap API to simplify code ocfs2: remove some useless functions lib/mpi: fix typo 'the the' in comment proc: add some (hopefully) insightful comments bdi: remove enum wb_congested_state kernel/hung_task: fix address space of proc_dohung_task_timeout_secs lib/lzo/lzo1x_compress.c: replace ternary operator with min() and min_t() squashfs: support reading fragments in readahead call squashfs: implement readahead squashfs: always build "file direct" version of page actor Revert "squashfs: provide backing_dev_info in order to disable read-ahead" fs/ocfs2: Fix spelling typo in comment ia64: old_rr4 added under CONFIG_HUGETLB_PAGE proc: fix test for "vsyscall=xonly" boot option ...
2022-08-06Merge tag 'livepatching-for-5.20' of ↵Linus Torvalds1-0/+8
git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching Pull livepatching update from Petr Mladek: - Make a selftest more reliable * tag 'livepatching-for-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching: selftests/livepatch: better synchronize test_klp_callbacks_busy
2022-08-06Merge tag 'mm-stable-2022-08-03' of ↵Linus Torvalds5-98/+293
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull MM updates from Andrew Morton: "Most of the MM queue. A few things are still pending. Liam's maple tree rework didn't make it. This has resulted in a few other minor patch series being held over for next time. Multi-gen LRU still isn't merged as we were waiting for mapletree to stabilize. The current plan is to merge MGLRU into -mm soon and to later reintroduce mapletree, with a view to hopefully getting both into 6.1-rc1. Summary: - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe Lin, Yang Shi, Anshuman Khandual and Mike Rapoport - Some kmemleak fixes from Patrick Wang and Waiman Long - DAMON updates from SeongJae Park - memcg debug/visibility work from Roman Gushchin - vmalloc speedup from Uladzislau Rezki - more folio conversion work from Matthew Wilcox - enhancements for coherent device memory mapping from Alex Sierra - addition of shared pages tracking and CoW support for fsdax, from Shiyang Ruan - hugetlb optimizations from Mike Kravetz - Mel Gorman has contributed some pagealloc changes to improve latency and realtime behaviour. - mprotect soft-dirty checking has been improved by Peter Xu - Many other singleton patches all over the place" [ XFS merge from hell as per Darrick Wong in https://lore.kernel.org/all/YshKnxb4VwXycPO8@magnolia/ ] * tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (282 commits) tools/testing/selftests/vm/hmm-tests.c: fix build mm: Kconfig: fix typo mm: memory-failure: convert to pr_fmt() mm: use is_zone_movable_page() helper hugetlbfs: fix inaccurate comment in hugetlbfs_statfs() hugetlbfs: cleanup some comments in inode.c hugetlbfs: remove unneeded header file hugetlbfs: remove unneeded hugetlbfs_ops forward declaration hugetlbfs: use helper macro SZ_1{K,M} mm: cleanup is_highmem() mm/hmm: add a test for cross device private faults selftests: add soft-dirty into run_vmtests.sh selftests: soft-dirty: add test for mprotect mm/mprotect: fix soft-dirty check in can_change_pte_writable() mm: memcontrol: fix potential oom_lock recursion deadlock mm/gup.c: fix formatting in check_and_migrate_movable_page() xfs: fail dax mount if reflink is enabled on a partition mm/memcontrol.c: remove the redundant updating of stats_flush_threshold userfaultfd: don't fail on unrecognized features hugetlb_cgroup: fix wrong hugetlb cgroup numa stat ...
2022-08-05Merge tag 'asm-generic-6.0' of ↵Linus Torvalds3-0/+56
git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic updates from Arnd Bergmann: "There are three independent sets of changes: - Sai Prakash Ranjan adds tracing support to the asm-generic version of the MMIO accessors, which is intended to help understand problems with device drivers and has been part of Qualcomm's vendor kernels for many years - A patch from Sebastian Siewior to rework the handling of IRQ stacks in softirqs across architectures, which is needed for enabling PREEMPT_RT - The last patch to remove the CONFIG_VIRT_TO_BUS option and some of the code behind that, after the last users of this old interface made it in through the netdev, scsi, media and staging trees" * tag 'asm-generic-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: uapi: asm-generic: fcntl: Fix typo 'the the' in comment arch/*/: remove CONFIG_VIRT_TO_BUS soc: qcom: geni: Disable MMIO tracing for GENI SE serial: qcom_geni_serial: Disable MMIO tracing for geni serial asm-generic/io: Add logging support for MMIO accessors KVM: arm64: Add a flag to disable MMIO trace for nVHE KVM lib: Add register read/write tracing support drm/meson: Fix overflow implicit truncation warnings irqchip/tegra: Fix overflow implicit truncation warnings coresight: etm4x: Use asm-generic IO memory barriers arm64: io: Use asm-generic high level MMIO accessors arch/*: Disable softirq stacks on PREEMPT_RT.
2022-08-05Merge tag 'printk-for-5.20-sane' of ↵Linus Torvalds1-4/+17
git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux Pull printk updates from Petr Mladek: - Allow reading kernel log in gdb even on 32 bits systems - More granular check of the buffer usage in printf selftest - Clang warning fix * tag 'printk-for-5.20-sane' of git://git.kernel.org/pub/scm/linux/kernel/git/printk/linux: lib/test_printf.c: fix clang -Wformat warnings scripts/gdb: fix 'lx-dmesg' on 32 bits arch lib/test_printf.c: split write-beyond-buffer check in two
2022-08-05Merge tag 'for-5.20/block-2022-08-04' of git://git.kernel.dk/linux-blockLinus Torvalds2-1/+104
Pull block driver updates from Jens Axboe: - NVMe pull requests via Christoph: - add support for In-Band authentication (Hannes Reinecke) - handle the persistent internal error AER (Michael Kelley) - use in-capsule data for TCP I/O queue connect (Caleb Sander) - remove timeout for getting RDMA-CM established event (Israel Rukshin) - misc cleanups (Joel Granados, Sagi Grimberg, Chaitanya Kulkarni, Guixin Liu, Xiang wangx) - use command_id instead of req->tag in trace_nvme_complete_rq() (Bean Huo) - various fixes for the new authentication code (Lukas Bulwahn, Dan Carpenter, Colin Ian King, Chaitanya Kulkarni, Hannes Reinecke) - small cleanups (Liu Song, Christoph Hellwig) - restore compat_ioctl support (Nick Bowler) - make a nvmet-tcp workqueue lockdep-safe (Sagi Grimberg) - enable generic interface (/dev/ngXnY) for unknown command sets (Joel Granados, Christoph Hellwig) - don't always build constants.o (Christoph Hellwig) - print the command name of aborted commands (Christoph Hellwig) - MD pull requests via Song: - Improve raid5 lock contention, by Logan Gunthorpe. - Misc fixes to raid5, by Logan Gunthorpe. - Fix race condition with md_reap_sync_thread(), by Guoqing Jiang. - Fix potential deadlock with raid5_quiesce and raid5_get_active_stripe, by Logan Gunthorpe. - Refactoring md_alloc(), by Christoph" - Fix md disk_name lifetime problems, by Christoph Hellwig - Convert prepare_to_wait() to wait_woken() api, by Logan Gunthorpe; - Fix sectors_to_do bitmap issue, by Logan Gunthorpe. - Work on unifying the null_blk module parameters and configfs API (Vincent) - drbd bitmap IO error fix (Lars) - Set of rnbd fixes (Guoqing, Md Haris) - Remove experimental marker on bcache async device registration (Coly) - Series from cleaning up the bio splitting (Christoph) - Removal of the sx8 block driver. This hardware never really widespread, and it didn't receive a lot of attention after the initial merge of it back in 2005 (Christoph) - A few fixes for s390 dasd (Eric, Jiang) - Followup set of fixes for ublk (Ming) - Support for UBLK_IO_NEED_GET_DATA for ublk (ZiyangZhang) - Fixes for the dio dma alignment (Keith) - Misc fixes and cleanups (Ming, Yu, Dan, Christophe * tag 'for-5.20/block-2022-08-04' of git://git.kernel.dk/linux-block: (136 commits) s390/dasd: Establish DMA alignment s390/dasd: drop unexpected word 'for' in comments ublk_drv: add support for UBLK_IO_NEED_GET_DATA ublk_cmd.h: add one new ublk command: UBLK_IO_NEED_GET_DATA ublk_drv: cleanup ublksrv_ctrl_dev_info ublk_drv: add SET_PARAMS/GET_PARAMS control command ublk_drv: fix ublk device leak in case that add_disk fails ublk_drv: cancel device even though disk isn't up block: fix leaking page ref on truncated direct io block: ensure bio_iov_add_page can't fail block: ensure iov_iter advances for added pages drivers:md:fix a potential use-after-free bug md/raid5: Ensure batch_last is released before sleeping for quiesce md/raid5: Move stripe_request_ctx up md/raid5: Drop unnecessary call to r5c_check_stripe_cache_usage() md/raid5: Make is_inactive_blocked() helper md/raid5: Refactor raid5_get_active_stripe() block: pass struct queue_limits to the bio splitting helpers block: move bio_allowed_max_sectors to blk-merge.c block: move the call to get_max_io_size out of blk_bio_segment_split ...
2022-08-04Merge tag 'driver-core-6.0-rc1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core / kernfs updates from Greg KH: "Here is the set of driver core and kernfs changes for 6.0-rc1. The "biggest" thing in here is some scalability improvements for kernfs for large systems. Other than that, included in here are: - arch topology and cache info changes that have been reviewed and discussed a lot. - potential error path cleanup fixes - deferred driver probe cleanups - firmware loader cleanups and tweaks - documentation updates - other small things All of these have been in the linux-next tree for a while with no reported problems" * tag 'driver-core-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (63 commits) docs: embargoed-hardware-issues: fix invalid AMD contact email firmware_loader: Replace kmap() with kmap_local_page() sysfs docs: ABI: Fix typo in comment kobject: fix Kconfig.debug "its" grammar kernfs: Fix typo 'the the' in comment docs: driver-api: firmware: add driver firmware guidelines. (v3) arch_topology: Fix cache attributes detection in the CPU hotplug path ACPI: PPTT: Leave the table mapped for the runtime usage cacheinfo: Use atomic allocation for percpu cache attributes drivers/base: fix userspace break from using bin_attributes for cpumap and cpulist MAINTAINERS: Change mentions of mpm to olivia docs: ABI: sysfs-devices-soc: Update Lee Jones' email address docs: ABI: sysfs-class-pwm: Update Lee Jones' email address Documentation/process: Add embargoed HW contact for LLVM Revert "kernfs: Change kernfs_notify_list to llist." ACPI: Remove the unused find_acpi_cpu_cache_topology() arch_topology: Warn that topology for nested clusters is not supported arch_topology: Add support for parsing sockets in /cpu-map arch_topology: Set cluster identifier in each core/thread from /cpu-map arch_topology: Limit span of cpu_clustergroup_mask() ...
2022-08-04Merge tag 'net-next-6.0' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking changes from Paolo Abeni: "Core: - Refactor the forward memory allocation to better cope with memory pressure with many open sockets, moving from a per socket cache to a per-CPU one - Replace rwlocks with RCU for better fairness in ping, raw sockets and IP multicast router. - Network-side support for IO uring zero-copy send. - A few skb drop reason improvements, including codegen the source file with string mapping instead of using macro magic. - Rename reference tracking helpers to a more consistent netdev_* schema. - Adapt u64_stats_t type to address load/store tearing issues. - Refine debug helper usage to reduce the log noise caused by bots. BPF: - Improve socket map performance, avoiding skb cloning on read operation. - Add support for 64 bits enum, to match types exposed by kernel. - Introduce support for sleepable uprobes program. - Introduce support for enum textual representation in libbpf. - New helpers to implement synproxy with eBPF/XDP. - Improve loop performances, inlining indirect calls when possible. - Removed all the deprecated libbpf APIs. - Implement new eBPF-based LSM flavor. - Add type match support, which allow accurate queries to the eBPF used types. - A few TCP congetsion control framework usability improvements. - Add new infrastructure to manipulate CT entries via eBPF programs. - Allow for livepatch (KLP) and BPF trampolines to attach to the same kernel function. Protocols: - Introduce per network namespace lookup tables for unix sockets, increasing scalability and reducing contention. - Preparation work for Wi-Fi 7 Multi-Link Operation (MLO) support. - Add support to forciby close TIME_WAIT TCP sockets via user-space tools. - Significant performance improvement for the TLS 1.3 receive path, both for zero-copy and not-zero-copy. - Support for changing the initial MTPCP subflow priority/backup status - Introduce virtually contingus buffers for sockets over RDMA, to cope better with memory pressure. - Extend CAN ethtool support with timestamping capabilities - Refactor CAN build infrastructure to allow building only the needed features. Driver API: - Remove devlink mutex to allow parallel commands on multiple links. - Add support for pause stats in distributed switch. - Implement devlink helpers to query and flash line cards. - New helper for phy mode to register conversion. New hardware / drivers: - Ethernet DSA driver for the rockchip mt7531 on BPI-R2 Pro. - Ethernet DSA driver for the Renesas RZ/N1 A5PSW switch. - Ethernet DSA driver for the Microchip LAN937x switch. - Ethernet PHY driver for the Aquantia AQR113C EPHY. - CAN driver for the OBD-II ELM327 interface. - CAN driver for RZ/N1 SJA1000 CAN controller. - Bluetooth: Infineon CYW55572 Wi-Fi plus Bluetooth combo device. Drivers: - Intel Ethernet NICs: - i40e: add support for vlan pruning - i40e: add support for XDP framented packets - ice: improved vlan offload support - ice: add support for PPPoE offload - Mellanox Ethernet (mlx5) - refactor packet steering offload for performance and scalability - extend support for TC offload - refactor devlink code to clean-up the locking schema - support stacked vlans for bridge offloads - use TLS objects pool to improve connection rate - Netronome Ethernet NICs (nfp): - extend support for IPv6 fields mangling offload - add support for vepa mode in HW bridge - better support for virtio data path acceleration (VDPA) - enable TSO by default - Microsoft vNIC driver (mana) - add support for XDP redirect - Others Ethernet drivers: - bonding: add per-port priority support - microchip lan743x: extend phy support - Fungible funeth: support UDP segmentation offload and XDP xmit - Solarflare EF100: add support for virtual function representors - MediaTek SoC: add XDP support - Mellanox Ethernet/IB switch (mlxsw): - dropped support for unreleased H/W (XM router). - improved stats accuracy - unified bridge model coversion improving scalability (parts 1-6) - support for PTP in Spectrum-2 asics - Broadcom PHYs - add PTP support for BCM54210E - add support for the BCM53128 internal PHY - Marvell Ethernet switches (prestera): - implement support for multicast forwarding offload - Embedded Ethernet switches: - refactor OcteonTx MAC filter for better scalability - improve TC H/W offload for the Felix driver - refactor the Microchip ksz8 and ksz9477 drivers to share the probe code (parts 1, 2), add support for phylink mac configuration - Other WiFi: - Microchip wilc1000: diable WEP support and enable WPA3 - Atheros ath10k: encapsulation offload support Old code removal: - Neterion vxge ethernet driver: this is untouched since more than 10 years" * tag 'net-next-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1890 commits) doc: sfp-phylink: Fix a broken reference wireguard: selftests: support UML wireguard: allowedips: don't corrupt stack when detecting overflow wireguard: selftests: update config fragments wireguard: ratelimiter: use hrtimer in selftest net/mlx5e: xsk: Discard unaligned XSK frames on striding RQ net: usb: ax88179_178a: Bind only to vendor-specific interface selftests: net: fix IOAM test skip return code net: usb: make USB_RTL8153_ECM non user configurable net: marvell: prestera: remove reduntant code octeontx2-pf: Reduce minimum mtu size to 60 net: devlink: Fix missing mutex_unlock() call net/tls: Remove redundant workqueue flush before destroy net: txgbe: Fix an error handling path in txgbe_probe() net: dsa: Fix spelling mistakes and cleanup code Documentation: devlink: add add devlink-selftests to the table of contents dccp: put dccp_qpolicy_full() and dccp_qpolicy_push() in the same lock net: ionic: fix error check for vlan flags in ionic_set_nic_features() net: ice: fix error NETIF_F_HW_VLAN_CTAG_FILTER check in ice_vsi_sync_fltr() nfp: flower: add support for tunnel offload without key ID ...
2022-08-03Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds1-4/+11
Pull copy_to_iter_mc fix from Al Viro: "Backportable fix for copy_to_iter_mc() - the second part of iov_iter work will pretty much overwrite this, but would be much harder to backport" * tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix short copy handling in copy_mc_pipe_to_iter()
2022-08-03Merge tag 'pull-work.iov_iter-base' of ↵Linus Torvalds1-231/+52
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs iov_iter updates from Al Viro: "Part 1 - isolated cleanups and optimizations. One of the goals is to reduce the overhead of using ->read_iter() and ->write_iter() instead of ->read()/->write(). new_sync_{read,write}() has a surprising amount of overhead, in particular inside iocb_flags(). That's the explanation for the beginning of the series is in this pile; it's not directly iov_iter-related, but it's a part of the same work..." * tag 'pull-work.iov_iter-base' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: first_iovec_segment(): just return address iov_iter: massage calling conventions for first_{iovec,bvec}_segment() iov_iter: first_{iovec,bvec}_segment() - simplify a bit iov_iter: lift dealing with maxpages out of first_{iovec,bvec}_segment() iov_iter_get_pages{,_alloc}(): cap the maxsize with MAX_RW_COUNT iov_iter_bvec_advance(): don't bother with bvec_iter copy_page_{to,from}_iter(): switch iovec variants to generic keep iocb_flags() result cached in struct file iocb: delay evaluation of IS_SYNC(...) until we want to check IOCB_DSYNC struct file: use anonymous union member for rcuhead and llist btrfs: use IOMAP_DIO_NOSYNC teach iomap_dio_rw() to suppress dsync No need of likely/unlikely on calls of check_copy_size()
2022-08-03Merge tag 'linux-kselftest-kunit-5.20-rc1' of ↵Linus Torvalds3-200/+127
git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull KUnit updates from Shuah Khan: "This consists of several fixes and an important feature to discourage running KUnit tests on production systems. Running tests on a production system could leave the system in a bad state. Summary: - Add a new taint type, TAINT_TEST to signal that a test has been run. This should discourage people from running these tests on production systems, and to make it easier to tell if tests have been run accidentally (by loading the wrong configuration, etc) - Several documentation and tool enhancements and fixes" * tag 'linux-kselftest-kunit-5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits) Documentation: KUnit: Fix example with compilation error Documentation: kunit: Add CLI args for kunit_tool kcsan: test: Add a .kunitconfig to run KCSAN tests kunit: executor: Fix a memory leak on failure in kunit_filter_tests clk: explicitly disable CONFIG_UML_PCI_OVER_VIRTIO in .kunitconfig mmc: sdhci-of-aspeed: test: Use kunit_test_suite() macro nitro_enclaves: test: Use kunit_test_suite() macro thunderbolt: test: Use kunit_test_suite() macro kunit: flatten kunit_suite*** to kunit_suite** in .kunit_test_suites kunit: unify module and builtin suite definitions selftest: Taint kernel when test module loaded module: panic: Taint the kernel when selftest modules load Documentation: kunit: fix example run_kunit func to allow spaces in args Documentation: kunit: Cleanup run_wrapper, fix x-ref kunit: test.h: fix a kernel-doc markup kunit: tool: Enable virtio/PCI by default on UML kunit: tool: make --kunitconfig repeatable, blindly concat kunit: add coverage_uml.config to enable GCOV on UML kunit: tool: refactor internal kconfig handling, allow overriding kunit: tool: introduce --qemu_args ...
2022-08-03Merge tag 'docs-6.0' of git://git.lwn.net/linuxLinus Torvalds1-1/+1
Pull documentation updates from Jonathan Corbet: "This was a moderately busy cycle for documentation, but nothing all that earth-shaking: - More Chinese translations, and an update to the Italian translations. The Japanese, Korean, and traditional Chinese translations are more-or-less unmaintained at this point, instead. - Some build-system performance improvements. - The removal of the archaic submitting-drivers.rst document, with the movement of what useful material that remained into other docs. - Improvements to sphinx-pre-install to, hopefully, give more useful suggestions. - A number of build-warning fixes Plus the usual collection of typo fixes, updates, and more" * tag 'docs-6.0' of git://git.lwn.net/linux: (92 commits) docs: efi-stub: Fix paths for x86 / arm stubs Docs/zh_CN: Update the translation of sched-stats to 5.19-rc8 Docs/zh_CN: Update the translation of pci to 5.19-rc8 Docs/zh_CN: Update the translation of pci-iov-howto to 5.19-rc8 Docs/zh_CN: Update the translation of usage to 5.19-rc8 Docs/zh_CN: Update the translation of testing-overview to 5.19-rc8 Docs/zh_CN: Update the translation of sparse to 5.19-rc8 Docs/zh_CN: Update the translation of kasan to 5.19-rc8 Docs/zh_CN: Update the translation of iio_configfs to 5.19-rc8 doc:it_IT: align Italian documentation docs: Remove spurious tag from admin-guide/mm/overcommit-accounting.rst Documentation: process: Update email client instructions for Thunderbird docs: ABI: correct QEMU fw_cfg spec path doc/zh_CN: remove submitting-driver reference from docs docs: zh_TW: align to submitting-drivers removal docs: zh_CN: align to submitting-drivers removal docs: ko_KR: howto: remove reference to removed submitting-drivers docs: ja_JP: howto: remove reference to removed submitting-drivers docs: it_IT: align to submitting-drivers removal docs: process: remove outdated submitting-drivers.rst ...
2022-08-03Merge tag 'v5.20-p1' of ↵Linus Torvalds8-9/+83
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto updates from Herbert Xu: "API: - Make proc files report fips module name and version Algorithms: - Move generic SHA1 code into lib/crypto - Implement Chinese Remainder Theorem for RSA - Remove blake2s - Add XCTR with x86/arm64 acceleration - Add POLYVAL with x86/arm64 acceleration - Add HCTR2 - Add ARIA Drivers: - Add support for new CCP/PSP device ID in ccp" * tag 'v5.20-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (89 commits) crypto: tcrypt - Remove the static variable initialisations to NULL crypto: arm64/poly1305 - fix a read out-of-bound crypto: hisilicon/zip - Use the bitmap API to allocate bitmaps crypto: hisilicon/sec - fix auth key size error crypto: ccree - Remove a useless dma_supported() call crypto: ccp - Add support for new CCP/PSP device ID crypto: inside-secure - Add missing MODULE_DEVICE_TABLE for of crypto: hisilicon/hpre - don't use GFP_KERNEL to alloc mem during softirq crypto: testmgr - some more fixes to RSA test vectors cyrpto: powerpc/aes - delete the rebundant word "block" in comments hwrng: via - Fix comment typo crypto: twofish - Fix comment typo crypto: rmd160 - fix Kconfig "its" grammar crypto: keembay-ocs-ecc - Drop if with an always false condition Documentation: qat: rewrite description Documentation: qat: Use code block for qat sysfs example crypto: lib - add module license to libsha1 crypto: lib - make the sha1 library optional crypto: lib - move lib/sha1.c into lib/crypto/ crypto: fips - make proc files report fips module name and version ...
2022-08-03lib/base64: RFC4648-compliant base64 encodingHannes Reinecke2-1/+104
Add RFC4648-compliant base64 encoding and decoding routines, based on the base64url encoding in fs/crypto/fname.c. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Cc: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-08-03Merge tag 'hardening-v5.20-rc1' of ↵Linus Torvalds2-0/+16
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening updates from Kees Cook: - Fix Sparse warnings with randomizd kstack (GONG, Ruiqi) - Replace uintptr_t with unsigned long in usercopy (Jason A. Donenfeld) - Fix Clang -Wforward warning in LKDTM (Justin Stitt) - Fix comment to correctly refer to STRICT_DEVMEM (Lukas Bulwahn) - Introduce dm-verity binding logic to LoadPin LSM (Matthias Kaehlcke) - Clean up warnings and overflow and KASAN tests (Kees Cook) * tag 'hardening-v5.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: dm: verity-loadpin: Drop use of dm_table_get_num_targets() kasan: test: Silence GCC 12 warnings drivers: lkdtm: fix clang -Wformat warning x86: mm: refer to the intended config STRICT_DEVMEM in a comment dm: verity-loadpin: Use CONFIG_SECURITY_LOADPIN_VERITY for conditional compilation LoadPin: Enable loading from trusted dm-verity devices dm: Add verity helpers for LoadPin stack: Declare {randomize_,}kstack_offset to fix Sparse warnings lib: overflow: Do not define 64-bit tests on 32-bit MAINTAINERS: Add a general "kernel hardening" section usercopy: use unsigned long instead of uintptr_t
2022-08-02Merge tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-blockLinus Torvalds1-0/+92
Pull block updates from Jens Axboe: - Improve the type checking of request flags (Bart) - Ensure queue mapping for a single queues always picks the right queue (Bart) - Sanitize the io priority handling (Jan) - rq-qos race fix (Jinke) - Reserved tags handling improvements (John) - Separate memory alignment from file/disk offset aligment for O_DIRECT (Keith) - Add new ublk driver, userspace block driver using io_uring for communication with the userspace backend (Ming) - Use try_cmpxchg() to cleanup the code in various spots (Uros) - Finally remove bdevname() (Christoph) - Clean up the zoned device handling (Christoph) - Clean up independent access range support (Christoph) - Clean up and improve block sysfs handling (Christoph) - Clean up and improve teardown of block devices. This turns the usual two step process into something that is simpler to implement and handle in block drivers (Christoph) - Clean up chunk size handling (Christoph) - Misc cleanups and fixes (Bart, Bo, Dan, GuoYong, Jason, Keith, Liu, Ming, Sebastian, Yang, Ying) * tag 'for-5.20/block-2022-07-29' of git://git.kernel.dk/linux-block: (178 commits) ublk_drv: fix double shift bug ublk_drv: make sure that correct flags(features) returned to userspace ublk_drv: fix error handling of ublk_add_dev ublk_drv: fix lockdep warning block: remove __blk_get_queue block: call blk_mq_exit_queue from disk_release for never added disks blk-mq: fix error handling in __blk_mq_alloc_disk ublk: defer disk allocation ublk: rewrite ublk_ctrl_get_queue_affinity to not rely on hctx->cpumask ublk: fold __ublk_create_dev into ublk_ctrl_add_dev ublk: cleanup ublk_ctrl_uring_cmd ublk: simplify ublk_ch_open and ublk_ch_release ublk: remove the empty open and release block device operations ublk: remove UBLK_IO_F_PREFLUSH ublk: add a MAINTAINERS entry block: don't allow the same type rq_qos add more than once mmc: fix disk/queue leak in case of adding disk failure ublk_drv: fix an IS_ERR() vs NULL check ublk: remove UBLK_IO_F_INTEGRITY ublk_drv: remove unneeded semicolon ...
2022-08-01lib/nodemask: inline next_node_in() and node_random()Yury Norov2-9/+1
The functions are pretty thin wrappers around find_bit engine, and keeping them in c-file prevents compiler from small_const_nbits() optimization, which must take place for all systems with MAX_NUMNODES less than BITS_PER_LONG (default is 16 for me). Moving them to header file doesn't blow up the kernel size: add/remove: 1/2 grow/shrink: 9/5 up/down: 968/-88 (880) CC: Andy Shevchenko <andriy.shevchenko@linux.intel.com> CC: Benjamin Herrenschmidt <benh@kernel.crashing.org> CC: Michael Ellerman <mpe@ellerman.id.au> CC: Paul Mackerras <paulus@samba.org> CC: Rasmus Villemoes <linux@rasmusvillemoes.dk> CC: Stephen Rothwell <sfr@canb.auug.org.au> CC: linuxppc-dev@lists.ozlabs.org Signed-off-by: Yury Norov <yury.norov@gmail.com>
2022-07-30lib/mpi: fix typo 'the the' in commentSlark Xiao1-1/+1
Replace 'the the' with 'the' in the comment. Link: https://lkml.kernel.org/r/20220722101922.81126-1-slark_xiao@163.com Signed-off-by: Slark Xiao <slark_xiao@163.com> Cc: Hongbo Li <herberthbli@tencent.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-30lib/lzo/lzo1x_compress.c: replace ternary operator with min() and min_t()Jiangshan Yi1-4/+2
Fix the following coccicheck warning: lib/lzo/lzo1x_compress.c:54: WARNING opportunity for min(). lib/lzo/lzo1x_compress.c:329: WARNING opportunity for min(). min() and min_t() macro is defined in include/linux/minmax.h. It avoids multiple evaluations of the arguments when non-constant and performs strict type-checking. Link: https://lkml.kernel.org/r/20220714015441.1313036-1-13667453960@163.com Signed-off-by: Jiangshan Yi <yijiangshan@kylinos.cn> Tested-by: Dave Rodgman <dave.rodgman@arm.com> Cc: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-07-28kobject: fix Kconfig.debug "its" grammarRandy Dunlap1-1/+1
Use the possessive "its" instead of the contraction "it's" where appropriate. Cc: Russell King <linux@armlinux.org.uk> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20220715015959.12657-1-rdunlap@infradead.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-07-28lib/test_printf.c: fix clang -Wformat warningsJustin Stitt1-3/+11
see warnings: | lib/test_printf.c:157:52: error: format specifies type 'unsigned char' | but the argument has type 'int' [-Werror,-Wformat] test("0|1|1|128|255", | "%hhu|%hhu|%hhu|%hhu|%hhu", 0, 1, 257, 128, -1); - | lib/test_printf.c:158:55: error: format specifies type 'char' but the | argument has type 'int' [-Werror,-Wformat] test("0|1|1|-128|-1", | "%hhd|%hhd|%hhd|%hhd|%hhd", 0, 1, 257, 128, -1); - | lib/test_printf.c:159:41: error: format specifies type 'unsigned short' | but the argument has type 'int' [-Werror,-Wformat] | test("2015122420151225", "%ho%ho%#ho", 1037, 5282, -11627); There's an ongoing movement to eventually enable the -Wformat flag for clang. Previous patches have targeted incorrect usage of format specifiers. In this case, however, the "incorrect" format specifiers are intrinsically part of the test cases. Hence, fixing them would be misaligned with their intended purpose. My proposed fix is to simply disable the warnings so that one day a clean build of the kernel with clang (and -Wformat enabled) would be possible. It would also keep us in the green for alot of the CI bots. Link: https://github.com/ClangBuiltLinux/linux/issues/378 Suggested-by: Nathan Chancellor <nathan@kernel.org> Suggested-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Petr Mladek <pmladek@suse.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Petr Mladek <pmladek@suse.com> Link: https://lore.kernel.org/r/20220718230626.1029318-1-justinstitt@google.com
2022-07-27kasan: test: Silence GCC 12 warningsKees Cook1-0/+10
GCC 12 continues to get smarter about array accesses. The KASAN tests are expecting to explicitly test out-of-bounds conditions at run-time, so hide the variable from GCC, to avoid warnings like: ../lib/test_kasan.c: In function 'ksize_uaf': ../lib/test_kasan.c:790:61: warning: array subscript 120 is outside array bounds of 'void[120]' [-Warray-bounds] 790 | KUNIT_EXPECT_KASAN_FAIL(test, ((volatile char *)ptr)[size]); | ~~~~~~~~~~~~~~~~~~~~~~^~~~~~ ../lib/test_kasan.c:97:9: note: in definition of macro 'KUNIT_EXPECT_KASAN_FAIL' 97 | expression; \ | ^~~~~~~~~~ Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Alexander Potapenko <glider@google.com> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Vincenzo Frascino <vincenzo.frascino@arm.com> Cc: kasan-dev@googlegroups.com Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220608214024.1068451-1-keescook@chromium.org
2022-07-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/netJakub Kicinski1-0/+3
No conflicts. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-07-20crypto: lib - add module license to libsha1Eric Biggers1-0/+3
libsha1 can be a module, so it needs a MODULE_LICENSE. Fixes: ec8f7f4821d5 ("crypto: lib - make the sha1 library optional") Reported-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>