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2020-04-10Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds33-771/+723
Pull more SCSI updates from James Bottomley: "This is a batch of changes that didn't make it in the initial pull request because the lpfc series had to be rebased to redo an incorrect split. It's basically driver updates to lpfc, target, bnx2fc and ufs with the rest being minor updates except the sr_block_release one which fixes a use after free introduced by the removal of the global mutex in the first patch set" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (35 commits) scsi: core: Add DID_ALLOC_FAILURE and DID_MEDIUM_ERROR to hostbyte_table scsi: ufs: Use ufshcd_config_pwr_mode() when scaling gear scsi: bnx2fc: fix boolreturn.cocci warnings scsi: zfcp: use fallthrough; scsi: aacraid: do not overwrite retval in aac_reset_adapter() scsi: sr: Fix sr_block_release() scsi: aic7xxx: Remove more FreeBSD-specific code scsi: mpt3sas: Fix kernel panic observed on soft HBA unplug scsi: ufs: set device as active power mode after resetting device scsi: iscsi: Report unbind session event when the target has been removed scsi: lpfc: Change default SCSI LUN QD to 64 scsi: libfc: rport state move to PLOGI if all PRLI retry exhausted scsi: libfc: If PRLI rejected, move rport to PLOGI state scsi: bnx2fc: Update the driver version to 2.12.13 scsi: bnx2fc: Fix SCSI command completion after cleanup is posted scsi: bnx2fc: Process the RQE with CQE in interrupt context scsi: target: use the stack for XCOPY passthrough cmds scsi: target: increase XCOPY I/O size scsi: target: avoid per-loop XCOPY buffer allocations scsi: target: drop xcopy DISK BLOCK LENGTH debug ...
2020-04-10smb3: enable swap on SMB3 mountsSteve French4-0/+70
Add experimental support for allowing a swap file to be on an SMB3 mount. There are use cases where swapping over a secure network filesystem is preferable. In some cases there are no local block devices large enough, and network block devices can be hard to setup and secure. And in some cases there are no local block devices at all (e.g. with the recent addition of remote boot over SMB3 mounts). There are various enhancements that can be added later e.g.: - doing a mandatory byte range lock over the swapfile (until the Linux VFS is modified to notify the file system that an open is for a swapfile, when the file can be opened "DENY_ALL" to prevent others from opening it). - pinning more buffers in the underlying transport to minimize memory allocations in the TCP stack under the fs - documenting how to create ACLs (on the server) to secure the swapfile (or adding additional tools to cifs-utils to make it easier) Signed-off-by: Steve French <stfrench@microsoft.com> Acked-by: Pavel Shilovsky <pshilov@microsoft.com> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2020-04-10MAINTAINERS: Remove nios2-dev@lists.rocketboards.orgLey Foon Tan1-4/+0
nios2-dev@lists.rocketboards.org mailing list is no longer supported, remove it from MAINTAINERS file. Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-04-10arch: nios2: remove 'resetvalue' propertyAlexandru Ardelean2-3/+0
The 'altr,pio-1.0' driver does not handle the 'resetvalue', so remove it. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-04-10arch: nios2: rename 'altr,gpio-bank-width' -> 'altr,ngpio'Alexandru Ardelean2-4/+4
There is no more 'altr,gpio-bank-width' in the 'altr,pio-1.0' driver. There is a 'altr,ngpio' which is what the property wants to configure. This change updates all occurrences of 'altr,gpio-bank-width' to 'altr,ngpio'. Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-04-10arch: nios2: Enable the common clk subsystem on Nios2Dragos Bogdan2-0/+9
This patch adds support for common clock framework on Nios2. Clock framework is commonly used in many drivers, and this patch makes it available for the entire architecture, not just on a per-driver basis. Signed-off-by: Beniamin Bia <beniamin.bia@analog.com> Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com> Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
2020-04-10Merge tag 'libata-5.7-2020-04-09' of git://git.kernel.dk/linux-blockLinus Torvalds4-5/+28
Pull libata fixes from Jens Axboe: "A few followup changes/fixes for libata: - PMP removal fix (Kai-Heng) - Add remapped NVMe device attribute to sysfs (Kai-Heng) - Remove redundant assignment (Colin) - Add yet another Comet Lake ID (Jian-Hong)" * tag 'libata-5.7-2020-04-09' of git://git.kernel.dk/linux-block: ahci: Add Intel Comet Lake PCH RAID PCI ID ata: ahci: Add sysfs attribute to show remapped NVMe device count ata: ahci-imx: remove redundant assignment to ret libata: Return correct status in sata_pmp_eh_recover_pm() when ATA_DFLAG_DETACH is set
2020-04-10Merge tag 'block-5.7-2020-04-10' of git://git.kernel.dk/linux-blockLinus Torvalds18-180/+324
Pull block fixes from Jens Axboe: "Here's a set of fixes that should go into this merge window. This contains: - NVMe pull request from Christoph with various fixes - Better discard support for loop (Evan) - Only call ->commit_rqs() if we have queued IO (Keith) - blkcg offlining fixes (Tejun) - fix (and fix the fix) for busy partitions" * tag 'block-5.7-2020-04-10' of git://git.kernel.dk/linux-block: block: fix busy device checking in blk_drop_partitions again block: fix busy device checking in blk_drop_partitions nvmet-rdma: fix double free of rdma queue blk-mq: don't commit_rqs() if none were queued nvme-fc: Revert "add module to ops template to allow module references" nvme: fix deadlock caused by ANA update wrong locking nvmet-rdma: fix bonding failover possible NULL deref loop: Better discard support for block devices loop: Report EOPNOTSUPP properly nvmet: fix NULL dereference when removing a referral nvme: inherit stable pages constraint in the mpath stack device blkcg: don't offline parent blkcg first blkcg: rename blkcg->cgwb_refcnt to ->online_pin and always use it nvme-tcp: fix possible crash in recv error flow nvme-tcp: don't poll a non-live queue nvme-tcp: fix possible crash in write_zeroes processing nvmet-fc: fix typo in comment nvme-rdma: Replace comma with a semicolon nvme-fcloop: fix deallocation of working context nvme: fix compat address handling in several ioctls
2020-04-10Merge tag 'io_uring-5.7-2020-04-09' of git://git.kernel.dk/linux-blockLinus Torvalds3-173/+269
Pull io_uring fixes from Jens Axboe: "Here's a set of fixes that either weren't quite ready for the first, or came about from some intensive testing on memcached with 350K+ sockets. Summary: - Fixes for races or deadlocks around poll handling - Don't double account fixed files against RLIMIT_NOFILE - IORING_OP_OPENAT LFS fix - Poll retry handling (Bijan) - Missing finish_wait() for SQPOLL (Hillf) - Cleanup/split of io_kiocb alloc vs ctx references (Pavel) - Fixed file unregistration and init fixes (Xiaoguang) - Various little fixes (Xiaoguang, Pavel, Colin)" * tag 'io_uring-5.7-2020-04-09' of git://git.kernel.dk/linux-block: io_uring: punt final io_ring_ctx wait-and-free to workqueue io_uring: fix fs cleanup on cqe overflow io_uring: don't read user-shared sqe flags twice io_uring: remove req init from io_get_req() io_uring: alloc req only after getting sqe io_uring: simplify io_get_sqring io_uring: do not always copy iovec in io_req_map_rw() io_uring: ensure openat sets O_LARGEFILE if needed io_uring: initialize fixed_file_data lock io_uring: remove redundant variable pointer nxt and io_wq_assign_next call io_uring: fix ctx refcounting in io_submit_sqes() io_uring: process requests completed with -EAGAIN on poll list io_uring: remove bogus RLIMIT_NOFILE check in file registration io_uring: use io-wq manager as backup task if task is exiting io_uring: grab task reference for poll requests io_uring: retry poll if we got woken with non-matching mask io_uring: add missing finish_wait() in io_sq_thread() io_uring: refactor file register/unregister/update handling
2020-04-10Merge tag 'xfs-5.7-merge-12' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds21-451/+512
Pull more xfs updates from Darrick Wong: "As promised last week, this batch changes how xfs interacts with memory reclaim; how the log batches and throttles log items; how hard writes near ENOSPC will try to squeeze more space out of the filesystem; and hopefully fix the last of the umount hangs after a catastrophic failure. Summary: - Validate the realtime geometry in the superblock when mounting - Refactor a bunch of tricky flag handling in the log code - Flush the CIL more judiciously so that we don't wait until there are millions of log items consuming a lot of memory. - Throttle transaction commits to prevent the xfs frontend from flooding the CIL with too many log items. - Account metadata buffers correctly for memory reclaim. - Mark slabs properly for memory reclaim. These should help reclaim run more effectively when XFS is using a lot of memory. - Don't write a garbage log record at unmount time if we're trying to trigger summary counter recalculation at next mount. - Don't block the AIL on locked dquot/inode buffers; instead trigger its backoff mechanism to give the lock holder a chance to finish up. - Ratelimit writeback flushing when buffered writes encounter ENOSPC. - Other minor cleanups. - Make reflink a synchronous operation when the fs is mounted with wsync or sync, which means that now we force the log to disk to record the changes" * tag 'xfs-5.7-merge-12' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (26 commits) xfs: reflink should force the log out if mounted with wsync xfs: factor out a new xfs_log_force_inode helper xfs: fix inode number overflow in ifree cluster helper xfs: remove redundant variable assignment in xfs_symlink() xfs: ratelimit inode flush on buffered write ENOSPC xfs: return locked status of inode buffer on xfsaild push xfs: trylock underlying buffer on dquot flush xfs: remove unnecessary ternary from xfs_create xfs: don't write a corrupt unmount record to force summary counter recalc xfs: factor inode lookup from xfs_ifree_cluster xfs: tail updates only need to occur when LSN changes xfs: factor common AIL item deletion code xfs: correctly acount for reclaimable slabs xfs: Improve metadata buffer reclaim accountability xfs: don't allow log IO to be throttled xfs: Throttle commits on delayed background CIL push xfs: Lower CIL flush limit for large logs xfs: remove some stale comments from the log code xfs: refactor unmount record writing xfs: merge xlog_commit_record with xlog_write_done ...
2020-04-10Merge tag 'acpi-5.7-rc1-3' of ↵Linus Torvalds3-6/+6
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more ACPI updates from Rafael Wysocki: "These prevent a false-positive static checker warning from triggering in the ACPI EC driver (Rafael Wysocki), fix white space in an ACPI document (Vilhelm Prytz) and add static annotation to one variable (Jason Yan)" * tag 'acpi-5.7-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: ACPI, x86/boot: make acpi_nobgrt static Documentation: firmware-guide: ACPI: fix table alignment in namespace.rst ACPI: EC: Fix up fast path check in acpi_ec_add()
2020-04-10Merge tag 'pm-5.7-rc1-3' of ↵Linus Torvalds2-57/+48
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull more power management updates from Rafael Wysocki: "Rework compat ioctl handling in the user space hibernation interface (Christoph Hellwig) and fix a typo in a function name in the cpuidle haltpoll driver (Yihao Wu)" * tag 'pm-5.7-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: cpuidle-haltpoll: Fix small typo PM / sleep: handle the compat case in snapshot_set_swap_area() PM / sleep: move SNAPSHOT_SET_SWAP_AREA handling into a helper
2020-04-10Merge tag 's390-5.7-2' of ↵Linus Torvalds13-168/+110
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull more s390 updates from Vasily Gorbik: "Second round of s390 fixes and features for 5.7: - The rest of fallthrough; annotations conversion - Couple of fixes for ADD uevents in the common I/O layer - Minor refactoring of the queued direct I/O code" * tag 's390-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/cio: generate delayed uevent for vfio-ccw subchannels s390/cio: avoid duplicated 'ADD' uevents s390/qdio: clear DSCI early for polling drivers s390/qdio: inline shared_ind() s390/qdio: remove cdev from init_data s390/qdio: allow for non-contiguous SBAL array in init_data zfcp: inline zfcp_qdio_setup_init_data() s390/qdio: cleanly split alloc and establish s390/mm: use fallthrough;
2020-04-10Documentation: android: binderfs: add 'stats' mount optionRandy Dunlap1-0/+6
Add documentation of the binderfs 'stats' mount option. Description taken from the commit message. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/r/baa0aa81-007d-af46-16a5-91fead0bd1b9@infradead.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2020-04-10block: fix busy device checking in blk_drop_partitions againChristoph Hellwig1-1/+1
The previous fix had an off by one in the bd_openers checking, counting the callers blkdev_get. Fixes: d3ef5536274f ("block: fix busy device checking in blk_drop_partitions") Reported-by: Qian Cai <cai@lca.pw> Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Qian Cai <cai@lca.pw> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-10Merge branch 'pm-cpuidle'Rafael J. Wysocki1-2/+2
* pm-cpuidle: cpuidle-haltpoll: Fix small typo
2020-04-10Merge branches 'acpi-ec' and 'acpi-x86'Rafael J. Wysocki2-3/+3
* acpi-ec: ACPI: EC: Fix up fast path check in acpi_ec_add() * acpi-x86: ACPI, x86/boot: make acpi_nobgrt static
2020-04-10io_uring: punt final io_ring_ctx wait-and-free to workqueueJens Axboe1-2/+16
We can't reliably wait in io_ring_ctx_wait_and_kill(), since the task_works list isn't ordered (in fact it's LIFO ordered). We could either fix this with a separate task_works list for io_uring work, or just punt the wait-and-free to async context. This ensures that task_work that comes in while we're shutting down is processed correctly. If we don't go async, we could have work past the fput() work for the ring that depends on work that won't be executed until after we're done with the wait-and-free. But as this operation is blocking, it'll never get a chance to run. This was reproduced with hundreds of thousands of sockets running memcached, haven't been able to reproduce this synthetically. Reported-by: Dan Melnic <dmm@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-09Merge tag 'amd-drm-fixes-5.7-2020-04-08' of ↵Dave Airlie22-48/+217
git://people.freedesktop.org/~agd5f/linux into drm-next amd-drm-fixes-5.7-2020-04-08: amdgpu: - Various Renoir fixes - Fix gfx clockgating sequence on gfx10 - RAS fixes - Avoid MST property creation after registration - Various cursor/viewport fixes - Fix a confusing log message about optional firmwares Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200408222240.3942-1-alexander.deucher@amd.com
2020-04-09Merge tag 'drm-intel-next-fixes-2020-04-08' of ↵Dave Airlie3-20/+42
git://anongit.freedesktop.org/drm/drm-intel into drm-next - Flush all the reloc_gpu batch (Chris) - Ignore readonly failures when updating relocs (Chris) - Fill all the unused space in the GGTT (Chris) - Return the right vswing table (Jose) - Don't enable DDI IO power on a TypeC port in TBT mode for ICL+ (Imre) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200408215952.GA1623934@intel.com
2020-04-09drm/ttm: Temporarily disable the huge_fault() callbackThomas Hellstrom (VMware)1-63/+0
With amdgpu and CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS=y, there are errors like: BUG: non-zero pgtables_bytes on freeing mm and: BUG: Bad rss-counter state with TTM transparent huge-pages. Until we've figured out what other TTM drivers do differently compared to vmwgfx, disable the huge_fault() callback, eliminating transhuge page-table entries. Cc: Christian König <christian.koenig@amd.com> Signed-off-by: Thomas Hellstrom (VMware) <thomas_os@shipmail.org> Reported-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca> Tested-by: Alex Xu (Hello71) <alex_y_xu@yahoo.ca> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200409164925.11912-1-thomas_os@shipmail.org
2020-04-09Merge tag 'drm-misc-next-fixes-2020-04-09' of ↵Dave Airlie7-61/+95
git://anongit.freedesktop.org/drm/drm-misc into drm-next A few DMA-related fixes, an OOB fix for virtio and a probe-related fix for analogix_dp Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20200409091424.cfpqqbqjxtkgnfme@gilmour.lan
2020-04-09Merge tag 'modules-for-v5.7' of ↵Linus Torvalds1-2/+2
git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull module updates from Jessica Yu: "Only a small cleanup this time around: a trivial conversion of zero-length arrays to flexible arrays" * tag 'modules-for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: kernel: module: Replace zero-length array with flexible-array member
2020-04-09smb3: change noisy error message to FYISteve French1-1/+1
The noisy posix error message in readdir was supposed to be an FYI (not enabled by default) CIFS VFS: XXX dev 66306, reparse 0, mode 755 Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com>
2020-04-09Merge tag 'arm64-fixes' of ↵Linus Torvalds7-32/+19
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Catalin Marinas: - Ensure that the compiler and linker versions are aligned so that ld doesn't complain about not understanding a .note.gnu.property section (emitted when pointer authentication is enabled). - Force -mbranch-protection=none when the feature is not enabled, in case a compiler may choose a different default value. - Remove CONFIG_DEBUG_ALIGN_RODATA. It was never in defconfig and rarely enabled. - Fix checking 16-bit Thumb-2 instructions checking mask in the emulation of the SETEND instruction (it could match the bottom half of a 32-bit Thumb-2 instruction). * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: armv8_deprecated: Fix undef_hook mask for thumb setend arm64: remove CONFIG_DEBUG_ALIGN_RODATA feature arm64: Always force a branch protection mode when the compiler has one arm64: Kconfig: ptrauth: Add binutils version check to fix mismatch init/kconfig: Add LD_VERSION Kconfig
2020-04-09Merge tag 'powerpc-5.7-2' of ↵Linus Torvalds29-601/+766
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull more powerpc updates from Michael Ellerman: "The bulk of this is the series to make CONFIG_COMPAT user-selectable, it's been around for a long time but was blocked behind the syscall-in-C series. Plus there's also a few fixes and other minor things. Summary: - A fix for a crash in machine check handling on pseries (ie. guests) - A small series to make it possible to disable CONFIG_COMPAT, and turn it off by default for ppc64le where it's not used. - A few other miscellaneous fixes and small improvements. Thanks to: Alexey Kardashevskiy, Anju T Sudhakar, Arnd Bergmann, Christophe Leroy, Dan Carpenter, Ganesh Goudar, Geert Uytterhoeven, Geoff Levand, Mahesh Salgaonkar, Markus Elfring, Michal Suchanek, Nicholas Piggin, Stephen Boyd, Wen Xiong" * tag 'powerpc-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: selftests/powerpc: Always build the tm-poison test 64-bit powerpc: Improve ppc_save_regs() Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled" powerpc/time: Replace <linux/clk-provider.h> by <linux/of_clk.h> powerpc/pseries/ddw: Extend upper limit for huge DMA window for persistent memory powerpc/perf: split callchain.c by bitness powerpc/64: Make COMPAT user-selectable disabled on littleendian by default. powerpc/64: make buildable without CONFIG_COMPAT powerpc/perf: consolidate valid_user_sp -> invalid_user_sp powerpc/perf: consolidate read_user_stack_32 powerpc: move common register copy functions from signal_32.c to signal.c powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro powerpc/ps3: Set CONFIG_UEVENT_HELPER=y in ps3_defconfig powerpc/ps3: Remove an unneeded NULL check powerpc/ps3: Remove duplicate error message powerpc/powernv: Re-enable imc trace-mode in kernel powerpc/perf: Implement a global lock to avoid races between trace, core and thread imc events. powerpc/pseries: Fix MCE handling on pseries selftests/eeh: Skip ahci adapters powerpc/64s: Fix doorbell wakeup msgclr optimisation
2020-04-09Merge branch 'for-next' of ↵Linus Torvalds4-48/+44
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu Pull m68knommu update from Greg Ungerer: "Only a single commit, to remove all use of the obsolete setup_irq() calls within the m68knommu architecture code" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: Replace setup_irq() by request_irq()
2020-04-09Merge tag 'riscv-for-linus-5.7' of ↵Linus Torvalds54-294/+3093
git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V updates from Palmer Dabbelt: "This contains a handful of new features: - Partial support for the Kendryte K210. There are still a few outstanding issues that I have patches for, but I don't actually have a board to test them so they're not included yet. - SBI v0.2 support. - Fixes to support for building with LLVM-based toolchains. The resulting images are known not to boot yet. I don't anticipate a part two, but I'll probably have something early in the RCs to finish up the K210 support" * tag 'riscv-for-linus-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (38 commits) riscv: create a loader.bin boot image for Kendryte SoC riscv: Kendryte K210 default config riscv: Add Kendryte K210 device tree riscv: Select required drivers for Kendryte SOC riscv: Add Kendryte K210 SoC support riscv: Add SOC early init support riscv: Unaligned load/store handling for M_MODE RISC-V: Support cpu hotplug RISC-V: Add supported for ordered booting method using HSM RISC-V: Add SBI HSM extension definitions RISC-V: Export SBI error to linux error mapping function RISC-V: Add cpu_ops and modify default booting method RISC-V: Move relocate and few other functions out of __init RISC-V: Implement new SBI v0.2 extensions RISC-V: Introduce a new config for SBI v0.1 RISC-V: Add SBI v0.2 extension definitions RISC-V: Add basic support for SBI v0.2 RISC-V: Mark existing SBI as 0.1 SBI. riscv: Use macro definition instead of magic number riscv: Add support to dump the kernel page tables ...
2020-04-09proc: Use a dedicated lock in struct pidEric W. Biederman3-5/+7
syzbot wrote: > ======================================================== > WARNING: possible irq lock inversion dependency detected > 5.6.0-syzkaller #0 Not tainted > -------------------------------------------------------- > swapper/1/0 just changed the state of lock: > ffffffff898090d8 (tasklist_lock){.+.?}-{2:2}, at: send_sigurg+0x9f/0x320 fs/fcntl.c:840 > but this lock took another, SOFTIRQ-unsafe lock in the past: > (&pid->wait_pidfd){+.+.}-{2:2} > > > and interrupts could create inverse lock ordering between them. > > > other info that might help us debug this: > Possible interrupt unsafe locking scenario: > > CPU0 CPU1 > ---- ---- > lock(&pid->wait_pidfd); > local_irq_disable(); > lock(tasklist_lock); > lock(&pid->wait_pidfd); > <Interrupt> > lock(tasklist_lock); > > *** DEADLOCK *** > > 4 locks held by swapper/1/0: The problem is that because wait_pidfd.lock is taken under the tasklist lock. It must always be taken with irqs disabled as tasklist_lock can be taken from interrupt context and if wait_pidfd.lock was already taken this would create a lock order inversion. Oleg suggested just disabling irqs where I have added extra calls to wait_pidfd.lock. That should be safe and I think the code will eventually do that. It was rightly pointed out by Christian that sharing the wait_pidfd.lock was a premature optimization. It is also true that my pre-merge window testing was insufficient. So remove the premature optimization and give struct pid a dedicated lock of it's own for struct pid things. I have verified that lockdep sees all 3 paths where we take the new pid->lock and lockdep does not complain. It is my current day dream that one day pid->lock can be used to guard the task lists as well and then the tasklist_lock won't need to be held to deliver signals. That will require taking pid->lock with irqs disabled. Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Link: https://lore.kernel.org/lkml/00000000000011d66805a25cd73f@google.com/ Cc: Oleg Nesterov <oleg@redhat.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Reported-by: syzbot+343f75cdeea091340956@syzkaller.appspotmail.com Reported-by: syzbot+832aabf700bc3ec920b9@syzkaller.appspotmail.com Reported-by: syzbot+f675f964019f884dbd0f@syzkaller.appspotmail.com Reported-by: syzbot+a9fb1457d720a55d6dc5@syzkaller.appspotmail.com Fixes: 7bc3e6e55acf ("proc: Use a list of inodes to flush from proc") Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
2020-04-09io_uring: fix fs cleanup on cqe overflowPavel Begunkov1-1/+1
If completion queue overflow occurs, __io_cqring_fill_event() will update req->cflags, which is in a union with req->work and happens to be aliased to req->work.fs. Following io_free_req() -> io_req_work_drop_env() may get a bunch of different problems (miscount fs->users, segfault, etc) on cleaning @fs. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-09ahci: Add Intel Comet Lake PCH RAID PCI IDJian-Hong Pan1-0/+1
Intel Comet Lake should use the default LPM policy for mobile chipsets. So, add the PCI ID to the driver list of supported devices. Signed-off-by: Jian-Hong Pan <jian-hong@endlessm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-04-09x86/xen: fix booting 32-bit pv guestJuergen Gross1-1/+1
Commit 2f62f36e62daec ("x86/xen: Make the boot CPU idle task reliable") introduced a regression for booting 32 bit Xen PV guests: the address of the initial stack needs to be a virtual one. Fixes: 2f62f36e62daec ("x86/xen: Make the boot CPU idle task reliable") Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com> Link: https://lore.kernel.org/r/20200409070001.16675-1-jgross@suse.com Signed-off-by: Juergen Gross <jgross@suse.com>
2020-04-09ath10k: change ATH10K_SDIO_BUS_REQUEST_MAX_NUM from 64 to 1024Wen Gong1-1/+2
sdio bus bandwidth is low, sometimes for high performance TX test, it will lack of ath10k_sdio_bus_request, it will print message: ath10k_sdio mmc1:0001:1: unable to allocate bus request for async request change the num from 64 to 1024 will not happen it. Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00017-QCARMSWP-1. Signed-off-by: Wen Gong <wgong@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200212080415.31265-3-wgong@codeaurora.org
2020-04-09ath10k: disable TX complete indication of htt for sdioWen Gong10-7/+132
For sdio chip, it is high latency bus, all the TX packet's content will be tranferred from HOST memory to firmware memory via sdio bus, then it need much more memory in firmware than low latency bus chip, for low latency chip, such as PCI-E, it only need to transfer the TX descriptor via PCI-E bus to firmware memory. For sdio chip, reduce the complexity of TX logic will help TX efficiency since its memory is limited, and it will reduce the TX circle's time of each packet and then firmware will have more memory for TX since TX complete also need memeory. This patch disable TX complete indication from firmware for htt data packet, it will not have TX complete indication from firmware to ath10k. It will cut the cost of bus bandwidth of TX complete and make the TX logic of firmware simpler, it results in significant performance improvement on TX path. Udp TX throughout is 130Mbps without this patch, and it arrives 400Mbps with this patch. The downside of this patch is the command "iw wlan0 station dump" will show 0 for "tx retries" and "tx failed" since all tx packet's status is success. This patch only effect sdio chip, it will not effect PCI, SNOC etc. Tested with QCA6174 SDIO with firmware WLAN.RMH.4.4.1-00017-QCARMSWPZ-1 Signed-off-by: Wen Gong <wgong@codeaurora.org> Signed-off-by: Kalle Valo <kvalo@codeaurora.org> Link: https://lore.kernel.org/r/20200212080415.31265-2-wgong@codeaurora.org
2020-04-09drm/bridge: analogix_dp: Split bind() into probe() and real bind()Marek Szyprowski4-42/+61
Analogix_dp driver acquires all its resources in the ->bind() callback, what is a bit against the component driver based approach, where the driver initialization is split into a probe(), where all resources are gathered, and a bind(), where all objects are created and a compound driver is initialized. Extract all the resource related operations to analogix_dp_probe() and analogix_dp_remove(), then call them before/after registration of the device components from the main Exynos DP and Rockchip DP drivers. Also move the plat_data initialization to the probe() to make it available for the analogix_dp_probe() function. This fixes the multiple calls to the bind() of the DRM compound driver when the DP PHY driver is not yet loaded/probed: [drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations exynos-drm exynos-drm: bound 14400000.fimd (ops fimd_component_ops [exynosdrm]) exynos-drm exynos-drm: bound 14450000.mixer (ops mixer_component_ops [exynosdrm]) exynos-dp 145b0000.dp-controller: no DP phy configured exynos-drm exynos-drm: failed to bind 145b0000.dp-controller (ops exynos_dp_ops [exynosdrm]): -517 exynos-drm exynos-drm: master bind failed: -517 ... [drm] Exynos DRM: using 14400000.fimd device for DMA mapping operations exynos-drm exynos-drm: bound 14400000.fimd (ops hdmi_enable [exynosdrm]) exynos-drm exynos-drm: bound 14450000.mixer (ops hdmi_enable [exynosdrm]) exynos-drm exynos-drm: bound 145b0000.dp-controller (ops hdmi_enable [exynosdrm]) exynos-drm exynos-drm: bound 14530000.hdmi (ops hdmi_enable [exynosdrm]) [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). Console: switching to colour frame buffer device 170x48 exynos-drm exynos-drm: fb0: exynosdrmfb frame buffer device [drm] Initialized exynos 1.1.0 20180330 for exynos-drm on minor 1 ... Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Acked-by: Andy Yan <andy.yan@rock-chips.com> Reviewed-by: Andrzej Hajda <a.hajda@samsung.com> Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200310103427.26048-1-m.szyprowski@samsung.com (cherry picked from commit 83a196773b8bc6702f49df1eddc848180e350340) Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2020-04-09drm/legacy: Fix type for drm_local_map.offsetChris Wilson1-1/+1
drm_local_map.offset is not only used for resource_size_t but also dma_addr_t which may be of different sizes. Reported-by: Nathan Chancellor <natechancellor@gmail.com> Fixes: 8e4ff9b56957 ("drm: Remove the dma_alloc_coherent wrapper for internal usage") Tested-by: Nathan Chancellor <natechancellor@gmail.com> # build Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Airlie <airlied@gmail.com> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20200402215926.30714-1-chris@chris-wilson.co.uk
2020-04-09Merge tag '9p-for-5.7-2' of git://github.com/martinetd/linuxLinus Torvalds1-0/+10
Pull 9p documentation update from Dominique Martinet: "Document the new O_NONBLOCK short read behavior" * tag '9p-for-5.7-2' of git://github.com/martinetd/linux: 9p: document short read behaviour with O_NONBLOCK
2020-04-09Merge tag 'ceph-for-5.7-rc1' of git://github.com/ceph/ceph-clientLinus Torvalds23-753/+1380
Pull ceph updates from Ilya Dryomov: "The main items are: - support for asynchronous create and unlink (Jeff Layton). Creates and unlinks are satisfied locally, without waiting for a reply from the MDS, provided the client has been granted appropriate caps (new in v15.y.z ("Octopus") release). This can be a big help for metadata heavy workloads such as tar and rsync. Opt-in with the new nowsync mount option. - multiple blk-mq queues for rbd (Hannes Reinecke and myself). When the driver was converted to blk-mq, we settled on a single blk-mq queue because of a global lock in libceph and some other technical debt. These have since been addressed, so allocate a queue per CPU to enhance parallelism. - don't hold onto caps that aren't actually needed (Zheng Yan). This has been our long-standing behavior, but it causes issues with some active/standby applications (synchronous I/O, stalls if the standby goes down, etc). - .snap directory timestamps consistent with ceph-fuse (Luis Henriques)" * tag 'ceph-for-5.7-rc1' of git://github.com/ceph/ceph-client: (49 commits) ceph: fix snapshot directory timestamps ceph: wait for async creating inode before requesting new max size ceph: don't skip updating wanted caps when cap is stale ceph: request new max size only when there is auth cap ceph: cleanup return error of try_get_cap_refs() ceph: return ceph_mdsc_do_request() errors from __get_parent() ceph: check all mds' caps after page writeback ceph: update i_requested_max_size only when sending cap msg to auth mds ceph: simplify calling of ceph_get_fmode() ceph: remove delay check logic from ceph_check_caps() ceph: consider inode's last read/write when calculating wanted caps ceph: always renew caps if mds_wanted is insufficient ceph: update dentry lease for async create ceph: attempt to do async create when possible ceph: cache layout in parent dir on first sync create ceph: add new MDS req field to hold delegated inode number ceph: decode interval_sets for delegated inos ceph: make ceph_fill_inode non-static ceph: perform asynchronous unlink if we have sufficient caps ceph: don't take refs to want mask unless we have all bits ...
2020-04-09Merge tag 'ovl-update-5.7' of ↵Linus Torvalds11-163/+460
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs Pull overlayfs update from Miklos Szeredi: - Fix failure to copy-up files from certain NFSv4 mounts - Sort out inconsistencies between st_ino and i_ino (used in /proc/locks) - Allow consistent (POSIX-y) inode numbering in more cases - Allow virtiofs to be used as upper layer - Miscellaneous cleanups and fixes * tag 'ovl-update-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: ovl: document xino expected behavior ovl: enable xino automatically in more cases ovl: avoid possible inode number collisions with xino=on ovl: use a private non-persistent ino pool ovl: fix WARN_ON nlink drop to zero ovl: fix a typo in comment ovl: replace zero-length array with flexible-array member ovl: ovl_obtain_alias(): don't call d_instantiate_anon() for old ovl: strict upper fs requirements for remote upper fs ovl: check if upper fs supports RENAME_WHITEOUT ovl: allow remote upper ovl: decide if revalidate needed on a per-dentry basis ovl: separate detection of remote upper layer from stacked overlay ovl: restructure dentry revalidation ovl: ignore failure to copy up unknown xattrs ovl: document permission model ovl: simplify i_ino initialization ovl: factor out helper ovl_get_root() ovl: fix out of date comment and unreachable code ovl: fix value of i_ino for lower hardlink corner case
2020-04-09Merge tag 'iomap-5.7-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds1-0/+8
Pull iomap fix from Darrick Wong: "Fix a problem in readahead where we can crash if we can't allocate a full bio due to GFP_NORETRY" * tag 'iomap-5.7-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: iomap: Handle memory allocation failure in readahead
2020-04-09Merge branch 'linus' of ↵Linus Torvalds2-3/+7
git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 Pull crypto fixes from Herbert Xu: "This fixes a Kconfig dependency for hisilicon as well as a double free in marvell/octeontx" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: marvell/octeontx - fix double free of ptr crypto: hisilicon - Fix build error
2020-04-09Merge tag 'linux-watchdog-5.7-rc1' of ↵Linus Torvalds16-80/+412
git://www.linux-watchdog.org/linux-watchdog Pull watchdog updates from Wim Van Sebroeck: - add TI K3 RTI watchdog - add stop_on_reboot parameter to control reboot policy - wm831x_wdt: Remove GPIO handling - several small fixes, improvements and clean-ups * tag 'linux-watchdog-5.7-rc1' of git://www.linux-watchdog.org/linux-watchdog: watchdog: Add K3 RTI watchdog support dt-bindings: watchdog: Add support for TI K3 RTI watchdog watchdog: ziirave_wdt: change name to be more specific watchdog: orion: use 0 for unset heartbeat watchdog: npcm: remove whitespaces watchdog: reset last_hw_keepalive time at start watchdog: imx2_wdt: Drop .remove callback watchdog: Add stop_on_reboot parameter to control reboot policy watchdog: wm831x_wdt: Remove GPIO handling watchdog: imx7ulp: Remove unused include of init.h watchdog: imx_sc_wdt: Remove unused includes watchdog: qcom: Use irq flags from firmware watchdog: pm8916_wdt: Add system sleep callbacks watchdog: qcom-wdt: disable pretimeout on timer platform
2020-04-09Merge tag 'tag-chrome-platform-for-v5.7' of ↵Linus Torvalds33-342/+2466
git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux Pull chrome platform updates from Benson Leung: cros-usbpd-notify and cros_ec_typec: - Add a new notification driver that handles and dispatches USB PD related events to other drivers. - Add a Type C connector class driver for cros_ec CrOS EC: - Introduce a new cros_ec_cmd_xfer_status helper Sensors/iio: - A series from Gwendal that adds Cros EC sensor hub FIFO support Wilco EC: - Fix a build warning. - Platform data shouldn't include kernel.h Misc: - i2c api conversion complete, with i2c_new_client_device instead of i2c_new_device in chromeos_laptop. - Replace zero-length array with flexible-array member in cros_ec_chardev and wilco_ec - Update new structure for SPI transfer delays in cros_ec_spi * tag 'tag-chrome-platform-for-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux: (34 commits) platform/chrome: cros_ec_spi: Wait for USECS, not NSECS iio: cros_ec: Use Hertz as unit for sampling frequency iio: cros_ec: Report hwfifo_watermark_max iio: cros_ec: Expose hwfifo_timeout iio: cros_ec: Remove pm function iio: cros_ec: Register to cros_ec_sensorhub when EC supports FIFO iio: expose iio_device_set_clock iio: cros_ec: Move function description to .c file platform/chrome: cros_ec_sensorhub: Add median filter platform/chrome: cros_ec_sensorhub: Add code to spread timestmap platform/chrome: cros_ec_sensorhub: Add FIFO support platform/chrome: cros_ec_sensorhub: Add the number of sensors in sensorhub platform/chrome: chromeos_laptop: make I2C API conversion complete platform/chrome: wilco_ec: event: Replace zero-length array with flexible-array member platform/chrome: cros_ec_chardev: Replace zero-length array with flexible-array member platform/chrome: cros_ec_typec: Update port info from EC platform/chrome: Add Type C connector class driver platform/chrome: cros_usbpd_notify: Pull PD_HOST_EVENT status platform/chrome: cros_usbpd_notify: Amend ACPI driver to plat platform/chrome: cros_usbpd_notify: Add driver data struct ...
2020-04-09Merge tag 'libnvdimm-for-5.7' of ↵Linus Torvalds45-261/+737
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull libnvdimm and dax updates from Dan Williams: "There were multiple touches outside of drivers/nvdimm/ this round to add cross arch compatibility to the devm_memremap_pages() interface, enhance numa information for persistent memory ranges, and add a zero_page_range() dax operation. This cycle I switched from the patchwork api to Konstantin's b4 script for collecting tags (from x86, PowerPC, filesystem, and device-mapper folks), and everything looks to have gone ok there. This has all appeared in -next with no reported issues. Summary: - Add support for region alignment configuration and enforcement to fix compatibility across architectures and PowerPC page size configurations. - Introduce 'zero_page_range' as a dax operation. This facilitates filesystem-dax operation without a block-device. - Introduce phys_to_target_node() to facilitate drivers that want to know resulting numa node if a given reserved address range was onlined. - Advertise a persistence-domain for of_pmem and papr_scm. The persistence domain indicates where cpu-store cycles need to reach in the platform-memory subsystem before the platform will consider them power-fail protected. - Promote numa_map_to_online_node() to a cross-kernel generic facility. - Save x86 numa information to allow for node-id lookups for reserved memory ranges, deploy that capability for the e820-pmem driver. - Pick up some miscellaneous minor fixes, that missed v5.6-final, including a some smatch reports in the ioctl path and some unit test compilation fixups. - Fixup some flexible-array declarations" * tag 'libnvdimm-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (29 commits) dax: Move mandatory ->zero_page_range() check in alloc_dax() dax,iomap: Add helper dax_iomap_zero() to zero a range dax: Use new dax zero page method for zeroing a page dm,dax: Add dax zero_page_range operation s390,dcssblk,dax: Add dax zero_page_range operation to dcssblk driver dax, pmem: Add a dax operation zero_page_range pmem: Add functions for reading/writing page to/from pmem libnvdimm: Update persistence domain value for of_pmem and papr_scm device tools/test/nvdimm: Fix out of tree build libnvdimm/region: Fix build error libnvdimm/region: Replace zero-length array with flexible-array member libnvdimm/label: Replace zero-length array with flexible-array member ACPI: NFIT: Replace zero-length array with flexible-array member libnvdimm/region: Introduce an 'align' attribute libnvdimm/region: Introduce NDD_LABELING libnvdimm/namespace: Enforce memremap_compat_align() libnvdimm/pfn: Prevent raw mode fallback if pfn-infoblock valid libnvdimm: Out of bounds read in __nd_ioctl() acpi/nfit: improve bounds checking for 'func' mm/memremap_pages: Introduce memremap_compat_align() ...
2020-04-09drm/amdgpu/display: fix warning when compiling without debugfsAlex Deucher1-1/+1
fixes unused variable warning. Reported-by: Eric Biggers <ebiggers@kernel.org> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Mikita Lipski <mikita.lipski@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-09drm/amdgpu: unify fw_write_wait for new gfx9 asicsAaron Liu1-0/+2
Make the fw_write_wait default case true since presumably all new gfx9 asics will have updated firmware. That is using unique WAIT_REG_MEM packet with opration=1. Signed-off-by: Aaron Liu <aaron.liu@amd.com> Tested-by: Aaron Liu <aaron.liu@amd.com> Tested-by: Yuxian Dai <Yuxian.Dai@amd.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Acked-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2020-04-09drm/amd/powerplay: error out on forcing clock setting not supportedEvan Quan1-1/+46
For Arcturus, forcing clock to some specific level is not supported with 54.18 and onwards SMU firmware. As according to firmware team, they adopt new gfx dpm tuned parameters which can cover all the use case in a much smooth way. Thus setting through driver interface is not needed and maybe do a disservice. Signed-off-by: Evan Quan <evan.quan@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-04-09drm/amdgpu: fix gfx hang during suspend with video playback (v2)Prike Liang1-2/+3
The system will be hang up during S3 suspend because of SMU is pending for GC not respose the register CP_HQD_ACTIVE access request.This issue root cause of accessing the GC register under enter GFX CGGPG and can be fixed by disable GFX CGPG before perform suspend. v2: Use disable the GFX CGPG instead of RLC safe mode guard. Signed-off-by: Prike Liang <Prike.Liang@amd.com> Tested-by: Mengbing Wang <Mengbing.Wang@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
2020-04-08dma-debug: fix displaying of dma allocation typeGrygorii Strashko1-3/+6
The commit 2e05ea5cdc1a ("dma-mapping: implement dma_map_single_attrs using dma_map_page_attrs") removed "dma_debug_page" enum, but missed to update type2name string table. This causes incorrect displaying of dma allocation type. Fix it by removing "page" string from type2name string table and switch to use named initializers. Before (dma_alloc_coherent()): k3-ringacc 4b800000.ringacc: scather-gather idx 2208 P=d1140000 N=d114 D=d1140000 L=40 DMA_BIDIRECTIONAL dma map error check not applicable k3-ringacc 4b800000.ringacc: scather-gather idx 2216 P=d1150000 N=d115 D=d1150000 L=40 DMA_BIDIRECTIONAL dma map error check not applicable After: k3-ringacc 4b800000.ringacc: coherent idx 2208 P=d1140000 N=d114 D=d1140000 L=40 DMA_BIDIRECTIONAL dma map error check not applicable k3-ringacc 4b800000.ringacc: coherent idx 2216 P=d1150000 N=d115 D=d1150000 L=40 DMA_BIDIRECTIONAL dma map error check not applicable Fixes: 2e05ea5cdc1a ("dma-mapping: implement dma_map_single_attrs using dma_map_page_attrs") Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-04-08dma-direct: fix data truncation in dma_direct_get_required_mask()Kishon Vijay Abraham I1-1/+2
The upper 32-bit physical address gets truncated inadvertently when dma_direct_get_required_mask() invokes phys_to_dma_direct(). This results in dma_addressing_limited() return incorrect value when used in platforms with LPAE enabled. Fix it here by explicitly type casting 'max_pfn' to phys_addr_t in order to prevent overflow of intermediate value while evaluating '(max_pfn - 1) << PAGE_SHIFT'. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Christoph Hellwig <hch@lst.de>