- 06 Jul, 2021 1 commit
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Mike Rapoport authored
The semantics of pfn_valid() is to check presence of the memory map for a PFN and not whether a PFN is in RAM. The memory map may be present for a hole in the physical memory and if such hole corresponds to an MMIO range, __arm_ioremap_pfn_caller() will produce a WARN() and fail: [ 2.863406] WARNING: CPU: 0 PID: 1 at arch/arm/mm/ioremap.c:287 __arm_ioremap_pfn_caller+0xf0/0x1dc [ 2.864812] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.13.0-09882-ga180bd1d #1 [ 2.865263] Hardware name: Generic DT based system [ 2.865711] Backtrace: [ 2.866063] [<80b07e58>] (dump_backtrace) from [<80b080ac>] (show_stack+0x20/0x24) [ 2.866633] r7:00000009 r6:0000011f r5:60000153 r4:80ddd1c0 [ 2.866922] [<80b0808c>] (show_stack) from [<80b18df0>] (dump_stack_lvl+0x58/0x74) [ 2.867117] [<80b18d98>] (dump_stack_lvl) from [<80b18e20>] (dump_stack+0x14/0x1c) [ 2.867309] r5:80118cac r4:80dc6774 [ 2.867404] [<80b18e0c>] (dump_stack) from [<80122fcc>] (__warn+0xe4/0x150) [ 2.867583] [<80122ee8>] (__warn) from [<80b08850>] (warn_slowpath_fmt+0x88/0xc0) [ 2.867774] r7:0000011f r6:80dc6774 r5:00000000 r4:814c4000 [ 2.867917] [<80b087cc>] (warn_slowpath_fmt) from [<80118cac>] (__arm_ioremap_pfn_caller+0xf0/0x1dc) [ 2.868158] r9:00000001 r8:9ef00000 r7:80e8b0d4 r6:0009ef00 r5:00000000 r4:00100000 [ 2.868346] [<80118bbc>] (__arm_ioremap_pfn_caller) from [<80118df8>] (__arm_ioremap_caller+0x60/0x68) [ 2.868581] r9:9ef00000 r8:821b6dc0 r7:00100000 r6:00000000 r5:815d1010 r4:80118d98 [ 2.868761] [<80118d98>] (__arm_ioremap_caller) from [<80118fcc>] (ioremap+0x28/0x30) [ 2.868958] [<80118fa4>] (ioremap) from [<8062871c>] (__devm_ioremap_resource+0x154/0x1c8) [ 2.869169] r5:815d1010 r4:814c5d2c [ 2.869263] [<806285c8>] (__devm_ioremap_resource) from [<8062899c>] (devm_ioremap_resource+0x14/0x18) [ 2.869495] r9:9e9f57a0 r8:814c4000 r7:815d1000 r6:815d1010 r5:8177c078 r4:815cf400 [ 2.869676] [<80628988>] (devm_ioremap_resource) from [<8091c6e4>] (fsi_master_acf_probe+0x1a8/0x5d8) [ 2.869909] [<8091c53c>] (fsi_master_acf_probe) from [<80723dbc>] (platform_probe+0x68/0xc8) [ 2.870124] r9:80e9dadc r8:00000000 r7:815d1010 r6:810c1000 r5:815d1010 r4:00000000 [ 2.870306] [<80723d54>] (platform_probe) from [<80721208>] (really_probe+0x1cc/0x470) [ 2.870512] r7:815d1010 r6:810c1000 r5:00000000 r4:815d1010 [ 2.870651] [<8072103c>] (really_probe) from [<807215cc>] (__driver_probe_device+0x120/0x1fc) [ 2.870872] r7:815d1010 r6:810c1000 r5:810c1000 r4:815d1010 [ 2.871013] [<807214ac>] (__driver_probe_device) from [<807216e8>] (driver_probe_device+0x40/0xd8) [ 2.871244] r9:80e9dadc r8:00000000 r7:815d1010 r6:810c1000 r5:812feaa0 r4:812fe994 [ 2.871428] [<807216a8>] (driver_probe_device) from [<80721a58>] (__driver_attach+0xa8/0x1d4) [ 2.871647] r9:80e9dadc r8:00000000 r7:00000000 r6:810c1000 r5:815d1054 r4:815d1010 [ 2.871830] [<807219b0>] (__driver_attach) from [<8071ee8c>] (bus_for_each_dev+0x88/0xc8) [ 2.872040] r7:00000000 r6:814c4000 r5:807219b0 r4:810c1000 [ 2.872194] [<8071ee04>] (bus_for_each_dev) from [<80722208>] (driver_attach+0x28/0x30) [ 2.872418] r7:810a2aa0 r6:00000000 r5:821b6000 r4:810c1000 [ 2.872570] [<807221e0>] (driver_attach) from [<8071f80c>] (bus_add_driver+0x114/0x200) [ 2.872788] [<8071f6f8>] (bus_add_driver) from [<80722ec4>] (driver_register+0x98/0x128) [ 2.873011] r7:81011d0c r6:814c4000 r5:00000000 r4:810c1000 [ 2.873167] [<80722e2c>] (driver_register) from [<80725240>] (__platform_driver_register+0x2c/0x34) [ 2.873408] r5:814dcb80 r4:80f2a764 [ 2.873513] [<80725214>] (__platform_driver_register) from [<80f2a784>] (fsi_master_acf_init+0x20/0x28) [ 2.873766] [<80f2a764>] (fsi_master_acf_init) from [<80f014a8>] (do_one_initcall+0x108/0x290) [ 2.874007] [<80f013a0>] (do_one_initcall) from [<80f01840>] (kernel_init_freeable+0x1ac/0x230) [ 2.874248] r9:80e9dadc r8:80f3987c r7:80f3985c r6:00000007 r5:814dcb80 r4:80f627a4 [ 2.874456] [<80f01694>] (kernel_init_freeable) from [<80b19f44>] (kernel_init+0x20/0x138) [ 2.874691] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80b19f24 [ 2.874894] r4:00000000 [ 2.874977] [<80b19f24>] (kernel_init) from [<80100170>] (ret_from_fork+0x14/0x24) [ 2.875231] Exception stack(0x814c5fb0 to 0x814c5ff8) [ 2.875535] 5fa0: 00000000 00000000 00000000 00000000 [ 2.875849] 5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 2.876133] 5fe0: 00000000 00000000 00000000 00000000 00000013 00000000 [ 2.876363] r5:80b19f24 r4:00000000 [ 2.876683] ---[ end trace b2f74b8536829970 ]--- [ 2.876911] fsi-master-acf gpio-fsi: ioremap failed for resource [mem 0x9ef00000-0x9effffff] [ 2.877492] fsi-master-acf gpio-fsi: Error -12 mapping coldfire memory [ 2.877689] fsi-master-acf: probe of gpio-fsi failed with error -12 Use memblock_is_map_memory() instead of pfn_valid() to check if a PFN is in RAM or not. Reported-by: Guenter Roeck <linux@roeck-us.net> Fixes: a4d5613c ("arm: extend pfn_valid to take into account freed memory map alignment") Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Tested-by: Guenter Roeck <linux@roeck-us.net>
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- 04 Jul, 2021 12 commits
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Linus Torvalds authored
This warning was there to catch any architectures that still use CONFIG_SET_FS, and that would mis-use iov_iter_init() for anything that wasn't a proper user space pointer. So that WARN_ON_ONCE(uaccess_kernel()); makes perfect conceptual sense: you really shouldn't use a kernel pointer with set_fs(KERNEL_DS) and then pass it to iov_iter_init(). HOWEVER. Guenter Roeck reports that this warning actually triggers in no-mmu configurations of both ARM and m68k. And the reason isn't that they pass in a kernel pointer under set_fs(KERNEL_DS) at all: the reason is that in those configurations, "uaccess_kernel()" is simply not reliable. Those no-mmu setups set USER_DS and KERNEL_DS to the same values, so you can't test for the difference. In particular, the no-mmu case for ARM does #define USER_DS KERNEL_DS #define uaccess_kernel() (true) so USER_DS and KERNEL_DS have the same value, and uaccess_kernel() is always trivially true. The m68k case is slightly different and not quite as obvious. It does (spread out over multiple header files just to be extra exciting: asm/processor.h, asm/segment.h and asm-generic/uaccess.h): #define TASK_SIZE (0xFFFFFFFFUL) #define USER_DS MAKE_MM_SEG(TASK_SIZE) #define KERNEL_DS MAKE_MM_SEG(~0UL) #define get_fs() (current_thread_info()->addr_limit) #define uaccess_kernel() (get_fs().seg == KERNEL_DS.seg) but the end result is the same: uaccess_kernel() will always be true, because USER_DS and KERNEL_DS end up having the same value, even if that value is defined differently. This is very arguably a misfeature in those implementations, but in the end we don't really care. All modern architectures have gotten rid of set_fs() already, and generic kernel code never uses it. And while the sanity check was a nice idea, an architecture would have to go the extra mile to actually break this. So this well-intentioned warning isn't really all that likely to find anything but these known false positives, and as such just isn't worth maintaining. Reported-by: Guenter Roeck <linux@roeck-us.net> Fixes: 8cd54c1c ("iov_iter: separate direction from flavour") Cc: Matthew Wilcox <willy@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Linus Torvalds authored
Merge branch 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull RCU updates from Paul McKenney: - Bitmap parsing support for "all" as an alias for all bits - Documentation updates - Miscellaneous fixes, including some that overlap into mm and lockdep - kvfree_rcu() updates - mem_dump_obj() updates, with acks from one of the slab-allocator maintainers - RCU NOCB CPU updates, including limited deoffloading - SRCU updates - Tasks-RCU updates - Torture-test updates * 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (78 commits) tasks-rcu: Make show_rcu_tasks_gp_kthreads() be static inline rcu-tasks: Make ksoftirqd provide RCU Tasks quiescent states rcu: Add missing __releases() annotation rcu: Remove obsolete rcu_read_unlock() deadlock commentary rcu: Improve comments describing RCU read-side critical sections rcu: Create an unrcu_pointer() to remove __rcu from a pointer srcu: Early test SRCU polling start rcu: Fix various typos in comments rcu/nocb: Unify timers rcu/nocb: Prepare for fine-grained deferred wakeup rcu/nocb: Only cancel nocb timer if not polling rcu/nocb: Delete bypass_timer upon nocb_gp wakeup rcu/nocb: Cancel nocb_timer upon nocb_gp wakeup rcu/nocb: Allow de-offloading rdp leader rcu/nocb: Directly call __wake_nocb_gp() from bypass timer rcu: Don't penalize priority boosting when there is nothing to boost rcu: Point to documentation of ordering guarantees rcu: Make rcu_gp_cleanup() be noinline for tracing rcu: Restrict RCU_STRICT_GRACE_PERIOD to at most four CPUs rcu: Make show_rcu_gp_kthreads() dump rcu_node structures blocking GP ...
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcuLinus Torvalds authored
Pull lkmm fixlet from Paul E McKenney. Fix missing underscore in Linux-kernel memory model docs. * 'lkmm.2021.05.10c' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: tools/memory-model: Fix smp_mb__after_spinlock() spelling
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git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcuLinus Torvalds authored
Pull KCSAN updates from Paul McKenney. * 'kcsan.2021.05.18a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: kcsan: Use URL link for pointing access-marking.txt kcsan: Document "value changed" line kcsan: Report observed value changes kcsan: Remove kcsan_report_type kcsan: Remove reporting indirection kcsan: Refactor access_info initialization kcsan: Fold panic() call into print_report() kcsan: Refactor passing watchpoint/other_info kcsan: Distinguish kcsan_report() calls kcsan: Simplify value change detection kcsan: Add pointer to access-marking.txt to data_race() bullet
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git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblockLinus Torvalds authored
Pull memblock updates from Mike Rapoport: "Fix arm crashes caused by holes in the memory map. The coordination between freeing of unused memory map, pfn_valid() and core mm assumptions about validity of the memory map in various ranges was not designed for complex layouts of the physical memory with a lot of holes all over the place. Kefen Wang reported crashes in move_freepages() on a system with the following memory layout [1]: node 0: [mem 0x0000000080a00000-0x00000000855fffff] node 0: [mem 0x0000000086a00000-0x0000000087dfffff] node 0: [mem 0x000000008bd00000-0x000000008c4fffff] node 0: [mem 0x000000008e300000-0x000000008ecfffff] node 0: [mem 0x0000000090d00000-0x00000000bfffffff] node 0: [mem 0x00000000cc000000-0x00000000dc9fffff] node 0: [mem 0x00000000de700000-0x00000000de9fffff] node 0: [mem 0x00000000e0800000-0x00000000e0bfffff] node 0: [mem 0x00000000f4b00000-0x00000000f6ffffff] node 0: [mem 0x00000000fda00000-0x00000000ffffefff] These crashes can be mitigated by enabling CONFIG_HOLES_IN_ZONE on ARM and essentially turning pfn_valid_within() to pfn_valid() instead of having it hardwired to 1 on that architecture, but this would require to keep CONFIG_HOLES_IN_ZONE solely for this purpose. A cleaner approach is to update ARM's implementation of pfn_valid() to take into accounting rounding of the freed memory map to pageblock boundaries and make sure it returns true for PFNs that have memory map entries even if there is no physical memory backing those PFNs" Link: https://lore.kernel.org/lkml/2a1592ad-bc9d-4664-fd19-f7448a37edc0@huawei.com [1] * tag 'memblock-v5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: arm: extend pfn_valid to take into account freed memory map alignment memblock: ensure there is no overflow in memblock_overlaps_region() memblock: align freed memory map on pageblock boundaries with SPARSEMEM memblock: free_unused_memmap: use pageblock units instead of MAX_ORDER
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 updates from Vasily Gorbik: - Rework inline asm to get rid of error prone "register asm" constructs, which are problematic especially when code instrumentation is enabled. In particular introduce and use register pair union to allocate even/odd register pairs. Unfortunately this breaks compatibility with older clang compilers and minimum clang version for s390 has been raised to 13. https://lore.kernel.org/linux-next/CAK7LNARuSmPCEy-ak0erPrPTgZdGVypBROFhtw+=3spoGoYsyw@mail.gmail.com/ - Fix gcc 11 warnings, which triggered various minor reworks all over the code. - Add zstd kernel image compression support. - Rework boot CPU lowcore handling. - De-duplicate and move kernel memory layout setup logic earlier. - Few fixes in preparation for FORTIFY_SOURCE performing compile-time and run-time field bounds checking for mem functions. - Remove broken and unused power management support leftovers in s390 drivers. - Disable stack-protector for decompressor and purgatory to fix buildroot build. - Fix vt220 sclp console name to match the char device name. - Enable HAVE_IOREMAP_PROT and add zpci_set_irq()/zpci_clear_irq() in zPCI code. - Remove some implausible WARN_ON_ONCEs and remove arch specific counter transaction call backs in favour of default transaction handling in perf code. - Extend/add new uevents for online/config/mode state changes of AP card / queue device in zcrypt. - Minor entry and ccwgroup code improvements. - Other small various fixes and improvements all over the code. * tag 's390-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (91 commits) s390/dasd: use register pair instead of register asm s390/qdio: get rid of register asm s390/ioasm: use symbolic names for asm operands s390/ioasm: get rid of register asm s390/cmf: get rid of register asm s390/lib,string: get rid of register asm s390/lib,uaccess: get rid of register asm s390/string: get rid of register asm s390/cmpxchg: use register pair instead of register asm s390/mm,pages-states: get rid of register asm s390/lib,xor: get rid of register asm s390/timex: get rid of register asm s390/hypfs: use register pair instead of register asm s390/zcrypt: Switch to flexible array member s390/speculation: Use statically initialized const for instructions virtio/s390: get rid of open-coded kvm hypercall s390/pci: add zpci_set_irq()/zpci_clear_irq() scripts/min-tool-version.sh: Raise minimum clang version to 13.0.0 for s390 s390/ipl: use register pair instead of register asm s390/mem_detect: fix tprot() program check new psw handling ...
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git://github.com/c-sky/csky-linuxLinus Torvalds authored
Pull arch/csky updates from Guo Ren: "A small cleanup and a fixup" * tag 'csky-for-linus-5.14-rc1' of git://github.com/c-sky/csky-linux: csky: Kconfig: Remove unused selects csky: syscache: Fixup duplicate cache flush
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git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxlLinus Torvalds authored
Pull CXL (Compute Express Link) updates from Dan Williams: "This subsystem is still in the build-out phase as the bulk of the update is improvements to enumeration and fleshing out the device model. In terms of new features, more mailbox commands have been added to the allowed-list in support of persistent memory provisioning support targeting v5.15. The critical update from an enumeration perspective is support for the CXL Fixed Memory Window Structure that indicates to Linux which system physical address ranges decode to the CXL Host Bridges in the system. This allows the driver to detect which address ranges have been mapped by firmware and what address ranges are available for future hotplug. So, again, mostly skeleton this round, with more meat targeting v5.15. Summary: - Add support for the CXL Fixed Memory Window Structure, a recent extension of the ACPI CEDT (CXL Early Discovery Table) - Add infrastructure for component registers - Add HDM (Host-managed device memory) decoder definitions - Define a device model for an HDM decoder tree - Bridge CXL persistent memory capabilities to an NVDIMM bus / device-model - Switch to fine grained mapping of CXL MMIO registers to allow different drivers / system software to own individual register blocks - Enable media provisioning commands, and publish the label storage area size in sysfs - Miscellaneous cleanups and fixes" * tag 'cxl-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (34 commits) cxl/pci: Rename CXL REGLOC ID cxl/acpi: Use the ACPI CFMWS to create static decoder objects cxl/acpi: Add the Host Bridge base address to CXL port objects cxl/pmem: Register 'pmem' / cxl_nvdimm devices libnvdimm: Drop unused device power management support libnvdimm: Export nvdimm shutdown helper, nvdimm_delete() cxl/pmem: Add initial infrastructure for pmem support cxl/core: Add cxl-bus driver infrastructure cxl/pci: Add media provisioning required commands cxl/component_regs: Fix offset cxl/hdm: Fix decoder count calculation cxl/acpi: Introduce cxl_decoder objects cxl/acpi: Enumerate host bridge root ports cxl/acpi: Add downstream port data to cxl_port instances cxl/Kconfig: Default drivers to CONFIG_CXL_BUS cxl/acpi: Introduce the root of a cxl_port topology cxl/pci: Fixup devm_cxl_iomap_block() to take a 'struct device *' cxl/pci: Add HDM decoder capabilities cxl/pci: Reserve individual register block regions cxl/pci: Map registers based on capabilities ...
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linuxLinus Torvalds authored
Pull i2c updates from Wolfram Sang: - core supports now bus regulators controlling power for SCL/SDA - quite some DT binding conversions to YAML - added a seperate DT binding for the optional SMBus Alert feature - documentation with examples how to deal with I2C sysfs files - some bigger rework for the i801 driver - and a few usual driver updates * 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (42 commits) i2c: ali1535: mention that the device should not be disabled i2c: mpc: Restore reread of I2C status register i2c: core-smbus: Expose PEC calculate function for generic use Documentation: i2c: Add doc for I2C sysfs i2c: core: Disable client irq on reboot/shutdown dt-bindings: i2c: update bindings for MT8195 SoC i2c: imx: Fix some checkpatch warnings i2c: davinci: Simplify with dev_err_probe() i2c: cadence: Simplify with dev_err_probe() i2c: xiic: Simplify with dev_err_probe() i2c: cadence: Clear HOLD bit before xfer_size register rolls over dt-bindings: i2c: ce4100: Replace "ti,pcf8575" by "nxp,pcf8575" i2c: i801: Improve i801_setup_hstcfg i2c: i801: Use driver name constant instead of function dev_driver_string i2c: i801: Simplify initialization of i2c_board_info in i801_probe_optional_slaves i2c: i801: Improve status polling i2c: cht-wc: Replace of_node by NULL i2c: riic: Add RZ/G2L support dt-bindings: i2c: renesas,riic: Document RZ/G2L I2C controller dt-bindings: i2c: renesas,iic: Convert to json-schema ...
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Martin K. Petersen authored
Commit d2bcbeab ("scsi: blkcg: Add app identifier support for blkcg") introduced an FC_APPID config option under SCSI. However, the added config option is not used anywhere. Simply remove it. The block layer BLK_CGROUP_FC_APPID config option is what actually controls whether the application ID code should be built or not. Make this option dependent on NVMe over FC since that is currently the only transport which supports the capability. Fixes: d2bcbeab ("scsi: blkcg: Add app identifier support for blkcg") Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Guo Ren authored
- GENERIC_ALLOCATOR is duplicated - Remove USB_ARCH_HAS_OHCI & USB_ARCH_HAS_EHCI, because they have been removed from linux. Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
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Guo Ren authored
The current csky logic of sys_cacheflush is wrong, it'll cause icache flush call dcache flush again. Now fixup it with a conditional "break & fallthrough". Fixes: 997153b9 ("csky: Add flush_icache_mm to defer flush icache all") Fixes: 0679d29d ("csky: fix syscache.c fallthrough warning") Acked-by: Randy Dunlap <rdunlap@infradead.org> Co-Developed-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Guo Ren <guoren@linux.alibaba.com> Cc: Arnd Bergmann <arnd@arndb.de>
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- 03 Jul, 2021 8 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-ledsLinus Torvalds authored
Pull LED updates from Pavel Machek: "This contains quite a lot of fixes, with more fixes in my inbox that did not make it (sorry)" * tag 'leds-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: (36 commits) leds: lgm: Fix up includes leds: ktd2692: Fix an error handling path leds: as3645a: Fix error return code in as3645a_parse_node() leds: turris-omnia: add missing MODULE_DEVICE_TABLE leds: lp55xx: Initialize enable GPIO direction to output leds: lm36274: Add missed property.h leds: el15203000: Make error handling more robust leds: pwm: Make error handling more robust leds: lt3593: Make use of device properties leds: lp50xx: Put fwnode in error case during ->probe() leds: lm3697: Don't spam logs when probe is deferred leds: lm3692x: Put fwnode in any case during ->probe() leds: lm36274: Correct headers (of*.h -> mod_devicetable.h) leds: lm36274: Put fwnode in error case during ->probe() leds: lm3532: Make error handling more robust leds: lm3532: select regmap I2C API leds: lgm-sso: Drop duplicate NULL check for GPIO operations leds: lgm-sso: Remove unneeded of_match_ptr() leds: lgm-sso: Fix clock handling leds: el15203000: Introduce to_el15203000_led() helper ...
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git://github.com/awilliam/linux-vfioLinus Torvalds authored
Pull VFIO updates from Alex Williamson: - Module reference fixes, structure renaming (Max Gurtovoy) - Export and use common pci_dev_trylock() (Luis Chamberlain) - Enable direct mdev device creation and probing by parent (Christoph Hellwig & Jason Gunthorpe) - Fix mdpy error path leak (Colin Ian King) - Fix mtty list entry leak (Jason Gunthorpe) - Enforce mtty device limit (Alex Williamson) - Resolve concurrent vfio-pci mmap faults (Alex Williamson) * tag 'vfio-v5.14-rc1' of git://github.com/awilliam/linux-vfio: vfio/pci: Handle concurrent vma faults vfio/mtty: Enforce available_instances vfio/mtty: Delete mdev_devices_list vfio: use the new pci_dev_trylock() helper to simplify try lock PCI: Export pci_dev_trylock() and pci_dev_unlock() vfio/mdpy: Fix memory leak of object mdev_state->vconfig vfio/iommu_type1: rename vfio_group struck to vfio_iommu_group vfio/mbochs: Convert to use vfio_register_group_dev() vfio/mdpy: Convert to use vfio_register_group_dev() vfio/mtty: Convert to use vfio_register_group_dev() vfio/mdev: Allow the mdev_parent_ops to specify the device driver to bind vfio/mdev: Remove CONFIG_VFIO_MDEV_DEVICE driver core: Export device_driver_attach() driver core: Don't return EPROBE_DEFER to userspace during sysfs bind driver core: Flow the return code from ->probe() through to sysfs bind driver core: Better distinguish probe errors in really_probe driver core: Pull required checks into driver_probe_device() vfio/platform: remove unneeded parent_module attribute vfio: centralize module refcount in subsystem layer
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs name lookup updates from Al Viro: "Small namei.c patch series, mostly to simplify the rules for nameidata state. It's actually from the previous cycle - but I didn't post it for review in time... Changes visible outside of fs/namei.c: file_open_root() calling conventions change, some freed bits in LOOKUP_... space" * 'work.namei' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: namei: make sure nd->depth is always valid teach set_nameidata() to handle setting the root as well take LOOKUP_{ROOT,ROOT_GRABBED,JUMPED} out of LOOKUP_... space switch file_open_root() to struct path
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull iov_iter updates from Al Viro: "iov_iter cleanups and fixes. There are followups, but this is what had sat in -next this cycle. IMO the macro forest in there became much thinner and easier to follow..." * 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits) csum_and_copy_to_pipe_iter(): leave handling of csum_state to caller clean up copy_mc_pipe_to_iter() pipe_zero(): we don't need no stinkin' kmap_atomic()... iov_iter: clean csum_and_copy_...() primitives up a bit copy_page_from_iter(): don't need kmap_atomic() for kvec/bvec cases copy_page_to_iter(): don't bother with kmap_atomic() for bvec/kvec cases iterate_xarray(): only of the first iteration we might get offset != 0 pull handling of ->iov_offset into iterate_{iovec,bvec,xarray} iov_iter: make iterator callbacks use base and len instead of iovec iov_iter: make the amount already copied available to iterator callbacks iov_iter: get rid of separate bvec and xarray callbacks iov_iter: teach iterate_{bvec,xarray}() about possible short copies iterate_bvec(): expand bvec.h macro forest, massage a bit iov_iter: unify iterate_iovec and iterate_kvec iov_iter: massage iterate_iovec and iterate_kvec to logics similar to iterate_bvec iterate_and_advance(): get rid of magic in case when n is 0 csum_and_copy_to_iter(): massage into form closer to csum_and_copy_from_iter() iov_iter: replace iov_iter_copy_from_user_atomic() with iterator-advancing variant [xarray] iov_iter_npages(): just use DIV_ROUND_UP() iov_iter_npages(): don't bother with iterate_all_kinds() ...
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs d_path() updates from Al Viro: "d_path.c refactoring" * 'work.d_path' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: getcwd(2): clean up error handling d_path: prepend_path() is unlikely to return non-zero d_path: prepend_path(): lift the inner loop into a new helper d_path: prepend_path(): lift resetting b in case when we'd return 3 out of loop d_path: prepend_path(): get rid of vfsmnt d_path: introduce struct prepend_buffer d_path: make prepend_name() boolean d_path: lift -ENAMETOOLONG handling into callers of prepend_path() d_path: don't bother with return value of prepend() getcwd(2): saner logics around prepend_path() call d_path: get rid of path_with_deleted() d_path: regularize handling of root dentry in __dentry_path() d_path: saner calling conventions for __dentry_path() d_path: "\0" is {0,0}, not {0}
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git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-traceLinus Torvalds authored
Pull tracing updates from Steven Rostedt: - Added option for per CPU threads to the hwlat tracer - Have hwlat tracer handle hotplug CPUs - New tracer: osnoise, that detects latency caused by interrupts, softirqs and scheduling of other tasks. - Added timerlat tracer that creates a thread and measures in detail what sources of latency it has for wake ups. - Removed the "success" field of the sched_wakeup trace event. This has been hardcoded as "1" since 2015, no tooling should be looking at it now. If one exists, we can revert this commit, fix that tool and try to remove it again in the future. - tgid mapping fixed to handle more than PID_MAX_DEFAULT pids/tgids. - New boot command line option "tp_printk_stop", as tp_printk causes trace events to write to console. When user space starts, this can easily live lock the system. Having a boot option to stop just after boot up is useful to prevent that from happening. - Have ftrace_dump_on_oops boot command line option take numbers that match the numbers shown in /proc/sys/kernel/ftrace_dump_on_oops. - Bootconfig clean ups, fixes and enhancements. - New ktest script that tests bootconfig options. - Add tracepoint_probe_register_may_exist() to register a tracepoint without triggering a WARN*() if it already exists. BPF has a path from user space that can do this. All other paths are considered a bug. - Small clean ups and fixes * tag 'trace-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (49 commits) tracing: Resize tgid_map to pid_max, not PID_MAX_DEFAULT tracing: Simplify & fix saved_tgids logic treewide: Add missing semicolons to __assign_str uses tracing: Change variable type as bool for clean-up trace/timerlat: Fix indentation on timerlat_main() trace/osnoise: Make 'noise' variable s64 in run_osnoise() tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing tracing: Fix spelling in osnoise tracer "interferences" -> "interference" Documentation: Fix a typo on trace/osnoise-tracer trace/osnoise: Fix return value on osnoise_init_hotplug_support trace/osnoise: Make interval u64 on osnoise_main trace/osnoise: Fix 'no previous prototype' warnings tracing: Have osnoise_main() add a quiescent state for task rcu seq_buf: Make trace_seq_putmem_hex() support data longer than 8 seq_buf: Fix overflow in seq_buf_putmem_hex() trace/osnoise: Support hotplug operations trace/hwlat: Support hotplug operations trace/hwlat: Protect kdata->kthread with get/put_online_cpus trace: Add timerlat tracer trace: Add osnoise tracer ...
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxLinus Torvalds authored
Pull devicetree updates from Rob Herring: - Refine reserved memory nomap handling - Merge some PCI and non-PCI address handling implementations - Simplify of_address.h header ifdefs - Improve printk handling of some 64-bit types - Convert adi,adv7511, Arm ccree, Arm SCMI, Arm SCU, Arm TWD timer, Arm VIC, arm,sbsa-gwdt, Arm/Amlogic SCPI, Aspeed I2C, Broadcom iProc PWM, linaro,optee-tz, MDIO GPIO, Mediatek RNG, MTD physmap, NXP pcf8563/pcf85263/pcf85363, Renesas TPU, renesas,emev2-smu, renesas,r9a06g032-sysctrl, sysc-rmobile, Tegra20 EMC, TI AM56 PCI, TI OMAP mailbox, TI SCI bindings, virtio-mmio, Zynq FPGA, and ZynqMP RTC to DT schema - Convert mux and mux controller bindings to schema. This includes MDIO IIO, and I2C muxes. - Add Arm PL031 RTC binding schema - Add vendor prefixes for StarFive Technology Co. Ltd. and Insignal Ltd - Fix some stale doc references - Remove stale property-units.txt. Superseded by schema in dt-schema repo. - Fixes for 'unevaluatedProperties' handling (enabled with experimental json-schema support) - Drop redundant usage of minItems and maxItems across the tree - Update some examples to use bindings with a schema * tag 'devicetree-for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (83 commits) dt-bindings: Fix 'unevaluatedProperties' errors in DT graph users dt-bindings: display: renesas,du: Fix 'ports' reference dt-bindings: media: adv7180: Add missing video-interfaces.yaml reference dt-bindings: crypto: ccree: Convert to json-schema dt-bindings: fpga: zynq: convert bindings to YAML dt-bindings: rtc: zynqmp: convert bindings to YAML dt-bindings: interrupt-controller: Convert ARM VIC to json-schema of: of_reserved_mem: mark nomap memory instead of removing of: of_reserved_mem: only call memblock_free for normal reserved memory dt-bindings: Drop redundant minItems/maxItems dt-bindings: spmi: Correct 'reg' schema of: reserved-memory: Add stub for RESERVEDMEM_OF_DECLARE() dt-bindings: clk: vc5: Fix example dt-bindings: timer: renesas,tmu: add r8a779a0 TMU support dt-bindings: drm: bridge: adi,adv7511.txt: convert to yaml dt-bindings: PCI: ti,am65: Convert PCIe host/endpoint mode dt-bindings to YAML of: Remove superfluous casts when printing u64 values of: Fix truncation of memory sizes on 32-bit platforms dt-bindings: rtc: nxp,pcf8563: Absorb pcf85263/pcf85363 bindings dt-bindings: pwm: Use examples with documented/matching schema ...
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Linus Torvalds authored
This reverts commit 9ce650a7. This commit causes watchdog lockups on my machine, and while I have no idea what the cause is, it bisected right to this commit, and reverting the change promptly fixes it. At least occasionally one of the watchdog call traces was Call Trace: _raw_spin_lock_irqsave+0x35/0x40 snd_pcm_period_elapsed+0x1b/0xa0 [snd_pcm] snd_usb_endpoint_start+0x1a0/0x3c0 [snd_usb_audio] start_endpoints+0x23/0x90 [snd_usb_audio] snd_usb_substream_playback_trigger+0x7b/0x1a0 [snd_usb_audio] snd_pcm_common_ioctl+0x1c44/0x2360 [snd_pcm] snd_pcm_ioctl+0x2e/0x40 [snd_pcm] __se_sys_ioctl+0x72/0xc0 do_syscall_64+0x4c/0xa0 entry_SYSCALL_64_after_hwframe+0x44/0xae so presumably it's a locking error on that substream spinlock that snd_pcm_period_elapsed() takes. But at this point I just want to have a working system so that I can continue the merge window work tomorrow. Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 02 Jul, 2021 18 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound updates from Takashi Iwai: "As the diffstat scatters over the tree, we've got many tree-wide small changes, but also got quite a few intrusive changes in the core side. The only ABI-visible core change is the new rawmidi framing mode support while others are kernel-internal, mostly code refactoring and/or nice improvements. Here are some highlights: Core: - A new framing access mode for rawmidi to get timestamps - Cleanup / refactoring of buffer memory management helper code - Support for automatic negotiation of ASoC DAI formats - Revival of software suspend for PCM and control core, as a preliminary work for PCI BAR rescan support ASoC: - Accessory detection support for several Qualcomm parts - Support for IEC958 control with hdmi-codec - Merging of Tegra machine drivers into a single driver - Support for AmLogic SM1 TOACODEC, Intel AlderLake-M, several NXP i.MX8 variants, NXP TFA1 and TDF9897, Rockchip RK817, Qualcomm Quinary MI2S, Texas Instruments TAS2505 USB-audio: - Reduction of latency at playback start - Code cleanup / fixes of usx2y driver - Scarlett2 mixer code fixes and enhancements - Quirks for Ozone and Denon devices HD-audio: - A few quirks for HP and ASUS machines - Display power management fixes Others: - FireWire code refactoring and enhancements - Tree-wide trivial coding-style fixes" * tag 'sound-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (594 commits) ALSA: usb-audio: scarlett2: Fix for loop increment in scarlett2_usb_get_config ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 630 G8 ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 445 G8 ALSA: hda/realtek: fix mute/micmute LEDs for HP ProBook 450 G8 ALSA: hda/realtek - Add ALC285 HP init procedure ALSA: hda/realtek - Add type for ALC287 ALSA: scarlett2: Fix scarlett2_*_ctl_put() return values again ALSA: scarlett2: Fix pad count for 18i8 Gen 3 ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook 830 G8 Notebook PC ALSA: firewire-lib: Fix 'amdtp_domain_start()' when no AMDTP_OUT_STREAM stream is found ASoC: qcom: lpass-cpu: mark IRQ_CLEAR register as volatile and readable ALSA: hda: Release codec display power during shutdown/reboot ALSA: hda: Release controller display power during shutdown/reboot ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too ASoC: fsl: remove unnecessary oom message ASoC: tlv320aic32x4: dt-bindings: add TAS2505 to compatible ASoC: tlv320aic32x4: add support for TAS2505 ASoC: tlv320aic32x4: add type to device private data struct ASoC: tegra30: ahub: Use devm_platform_get_and_ioremap_resource() ASoC: tegra: tegra210_admaif: Use devm_platform_get_and_ioremap_resource() ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI updates from James Bottomley: "This series consists of the usual driver updates (ufs, ibmvfc, megaraid_sas, lpfc, elx, mpi3mr, qedi, iscsi, storvsc, mpt3sas) with elx and mpi3mr being new drivers. The major core change is a rework to drop the status byte handling macros and the old bit shifted definitions and the rest of the updates are minor fixes" * tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (287 commits) scsi: aha1740: Avoid over-read of sense buffer scsi: arcmsr: Avoid over-read of sense buffer scsi: ips: Avoid over-read of sense buffer scsi: ufs: ufs-mediatek: Add missing of_node_put() in ufs_mtk_probe() scsi: elx: libefc: Fix IRQ restore in efc_domain_dispatch_frame() scsi: elx: libefc: Fix less than zero comparison of a unsigned int scsi: elx: efct: Fix pointer error checking in debugfs init scsi: elx: efct: Fix is_originator return code type scsi: elx: efct: Fix link error for _bad_cmpxchg scsi: elx: efct: Eliminate unnecessary boolean check in efct_hw_command_cancel() scsi: elx: efct: Do not use id uninitialized in efct_lio_setup_session() scsi: elx: efct: Fix error handling in efct_hw_init() scsi: elx: efct: Remove redundant initialization of variable lun scsi: elx: efct: Fix spelling mistake "Unexected" -> "Unexpected" scsi: lpfc: Fix build error in lpfc_scsi.c scsi: target: iscsi: Remove redundant continue statement scsi: qla4xxx: Remove redundant continue statement scsi: ppa: Switch to use module_parport_driver() scsi: imm: Switch to use module_parport_driver() scsi: mpt3sas: Fix error return value in _scsih_expander_add() ...
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs updates from Darrick Wong: "Most of the work this cycle has been on refactoring various parts of the codebase. The biggest non-cleanup changes are (1) reducing the number of cache flushes sent when writing the log; (2) a substantial number of log recovery fixes; and (3) I started accepting pull requests from contributors if the commits in their branches match what's been sent to the list. For a week or so I /had/ staged a major cleanup of the logging code from Dave Chinner, but it exposed so many lurking bugs in other parts of the logging and log recovery code that I decided to defer that patchset until we can address those latent bugs. Larger cleanups this time include walking the incore inode cache (me) and rework of the extended attribute code (Allison) to prepare it for adding logged xattr updates (and directory tree parent pointers) in future releases. Summary: - Refactor the buffer cache to use bulk page allocation - Convert agnumber-based AG iteration to walk per-AG structures - Clean up some unit conversions and other code warts - Reduce spinlock contention in the directio fastpath - Collapse all the inode cache walks into a single function - Remove indirect function calls from the inode cache walk code - Dramatically reduce the number of cache flushes sent when writing log buffers - Preserve inode sickness reports for longer - Rename xfs_eofblocks since it controls inode cache walks - Refactor the extended attribute code to prepare it for the addition of log intent items to make xattrs fully transactional - A few fixes to earlier large patchsets - Log recovery fixes so that we don't accidentally mark the log clean when log intent recovery fails - Fix some latent SOB errors - Clean up shutdown messages that get logged to dmesg - Fix a regression in the online shrink code - Fix a UAF in the buffer logging code if the fs goes offline - Fix uninitialized error variables - Fix a UAF in the CIL when commited log item callbacks race with a shutdown - Fix a bug where the CIL could hang trying to push part of the log ring buffer that hasn't been filled yet" * tag 'xfs-5.14-merge-6' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (102 commits) xfs: don't wait on future iclogs when pushing the CIL xfs: Fix a CIL UAF by getting get rid of the iclog callback lock xfs: remove callback dequeue loop from xlog_state_do_iclog_callbacks xfs: don't nest icloglock inside ic_callback_lock xfs: Initialize error in xfs_attr_remove_iter xfs: fix endianness issue in xfs_ag_shrink_space xfs: remove dead stale buf unpin handling code xfs: hold buffer across unpin and potential shutdown processing xfs: force the log offline when log intent item recovery fails xfs: fix log intent recovery ENOSPC shutdowns when inactivating inodes xfs: shorten the shutdown messages to a single line xfs: print name of function causing fs shutdown instead of hex pointer xfs: fix type mismatches in the inode reclaim functions xfs: separate primary inode selection criteria in xfs_iget_cache_hit xfs: refactor the inode recycling code xfs: add iclog state trace events xfs: xfs_log_force_lsn isn't passed a LSN xfs: Fix CIL throttle hang when CIL space used going backwards xfs: journal IO cache flush reductions xfs: remove need_start_rec parameter from xlog_write() ...
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git://github.com/kleikamp/linux-shaggyLinus Torvalds authored
Pull jfs updates from David Kleikamp: "JFS fixes for 5.14" * tag 'jfs-5.14' of git://github.com/kleikamp/linux-shaggy: jfs: Avoid field-overflowing memcpy() jfs: remove unnecessary oom message jfs: fix GPF in diFree fs/jfs: Fix missing error code in lmLogInit() jfs: Remove trailing semicolon in macros fs: Fix typo issue
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git://git.infradead.org/users/hch/configfsLinus Torvalds authored
Pull configfs updates from Christoph Hellwig: - fix a memleak in configfs_release_bin_file (Chung-Chiang Cheng) - implement the .read_iter and .write_iter (Bart Van Assche) - minor cleanups (Bart Van Assche, me) * tag 'configfs-5.13' of git://git.infradead.org/users/hch/configfs: configfs: simplify configfs_release_bin_file configfs: fix memleak in configfs_release_bin_file configfs: implement the .read_iter and .write_iter methods configfs: drop pointless kerneldoc comments configfs: fix the kerneldoc comment for configfs_create_bin_file
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git://git.infradead.org/users/hch/dma-mappingLinus Torvalds authored
Pull dma-mapping updates from Christoph Hellwig: - a trivivial whitespace fix (Zhen Lei) - report -EEXIST errors in add_dma_entry (Hamza Mahfooz) * tag 'dma-mapping-5.14' of git://git.infradead.org/users/hch/dma-mapping: dma-debug: report -EEXIST errors in add_dma_entry dma-mapping: remove a trailing space
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
Pull iommu updates from Joerg Roedel: - SMMU Updates from Will Deacon: - SMMUv3: - Support stalling faults for platform devices - Decrease defaults sizes for the event and PRI queues - SMMUv2: - Support for a new '->probe_finalize' hook, needed by Nvidia - Even more Qualcomm compatible strings - Avoid Adreno TTBR1 quirk for DB820C platform - Intel VT-d updates from Lu Baolu: - Convert Intel IOMMU to use sva_lib helpers in iommu core - ftrace and debugfs supports for page fault handling - Support asynchronous nested capabilities - Various misc cleanups - Support for new VIOT ACPI table to make the VirtIO IOMMU available on x86 - Add the amd_iommu=force_enable command line option to enable the IOMMU on platforms where they are known to cause problems - Support for version 2 of the Rockchip IOMMU - Various smaller fixes, cleanups and refactorings * tag 'iommu-updates-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (66 commits) iommu/virtio: Enable x86 support iommu/dma: Pass address limit rather than size to iommu_setup_dma_ops() ACPI: Add driver for the VIOT table ACPI: Move IOMMU setup code out of IORT ACPI: arm64: Move DMA setup operations out of IORT iommu/vt-d: Fix dereference of pointer info before it is null checked iommu: Update "iommu.strict" documentation iommu/arm-smmu: Check smmu->impl pointer before dereferencing iommu/arm-smmu-v3: Remove unnecessary oom message iommu/arm-smmu: Fix arm_smmu_device refcount leak in address translation iommu/arm-smmu: Fix arm_smmu_device refcount leak when arm_smmu_rpm_get fails iommu/vt-d: Fix linker error on 32-bit iommu/vt-d: No need to typecast iommu/vt-d: Define counter explicitly as unsigned int iommu/vt-d: Remove unnecessary braces iommu/vt-d: Removed unused iommu_count in dmar domain iommu/vt-d: Use bitfields for DMAR capabilities iommu/vt-d: Use DEVICE_ATTR_RO macro iommu/vt-d: Fix out-bounds-warning in intel/svm.c iommu/vt-d: Add PRQ handling latency sampling ...
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Linus Torvalds authored
Merge tag 'linux-kselftest-next-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull Kselftest update from Shuah Khan: "Fixes to existing tests and framework: - migrate sgx test to kselftest harness - add new test cases to sgx test - ftrace test fix event-no-pid on 1-core machine - splice test adjust for handler fallback removal" * tag 'linux-kselftest-next-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests/sgx: remove checks for file execute permissions selftests/ftrace: fix event-no-pid on 1-core machine selftests/sgx: Refine the test enclave to have storage selftests/sgx: Add EXPECT_EEXIT() macro selftests/sgx: Dump enclave memory map selftests/sgx: Migrate to kselftest harness selftests/sgx: Rename 'eenter' and 'sgx_call_vdso' selftests: timers: rtcpie: skip test if default RTC device does not exist selftests: lib.mk: Also install "config" and "settings" selftests: splice: Adjust for handler fallback removal selftests/tls: Add {} to avoid static checker warning selftests/resctrl: Fix incorrect parsing of option "-t"
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Linus Torvalds authored
Merge tag 'linux-kselftest-kunit-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull KUnit update from Shuah Khan: "Fixes and features: - add support for skipped tests - introduce kunit_kmalloc_array/kunit_kcalloc() helpers - add gnu_printf specifiers - add kunit_shutdown - add unit test for filtering suites by names - convert lib/test_list_sort.c to use KUnit - code organization moving default config to tools/testing/kunit - refactor of internal parser input handling - cleanups and updates to documentation - code cleanup related to casts" * tag 'linux-kselftest-kunit-fixes-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (29 commits) kunit: add unit test for filtering suites by names kasan: test: make use of kunit_skip() kunit: test: Add example tests which are always skipped kunit: tool: Support skipped tests in kunit_tool kunit: Support skipped tests thunderbolt: test: Reinstate a few casts of bitfields kunit: tool: internal refactor of parser input handling lib/test: convert lib/test_list_sort.c to use KUnit kunit: introduce kunit_kmalloc_array/kunit_kcalloc() helpers kunit: Remove the unused all_tests.config kunit: Move default config from arch/um -> tools/testing/kunit kunit: arch/um/configs: Enable KUNIT_ALL_TESTS by default kunit: Add gnu_printf specifiers lib/cmdline_kunit: Remove a cast which are no-longer required kernel/sysctl-test: Remove some casts which are no-longer required thunderbolt: test: Remove some casts which are no longer required mmc: sdhci-of-aspeed: Remove some unnecessary casts from KUnit tests iio: Remove a cast in iio-test-format which is no longer required device property: Remove some casts in property-entry-test Documentation: kunit: Clean up some string casts in examples ...
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc updates from Michael Ellerman: - A big series refactoring parts of our KVM code, and converting some to C. - Support for ARCH_HAS_SET_MEMORY, and ARCH_HAS_STRICT_MODULE_RWX on some CPUs. - Support for the Microwatt soft-core. - Optimisations to our interrupt return path on 64-bit. - Support for userspace access to the NX GZIP accelerator on PowerVM on Power10. - Enable KUAP and KUEP by default on 32-bit Book3S CPUs. - Other smaller features, fixes & cleanups. Thanks to: Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann, Athira Rajeev, Baokun Li, Benjamin Herrenschmidt, Bharata B Rao, Christophe Leroy, Daniel Axtens, Daniel Henrique Barboza, Finn Thain, Geoff Levand, Haren Myneni, Jason Wang, Jiapeng Chong, Joel Stanley, Jordan Niethe, Kajol Jain, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Paul Mackerras, Russell Currey, Sathvika Vasireddy, Shaokun Zhang, Stephen Rothwell, Sudeep Holla, Suraj Jitindar Singh, Tom Rix, Vaibhav Jain, YueHaibing, Zhang Jianhua, and Zhen Lei. * tag 'powerpc-5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (218 commits) powerpc: Only build restart_table.c for 64s powerpc/64s: move ret_from_fork etc above __end_soft_masked powerpc/64s/interrupt: clean up interrupt return labels powerpc/64/interrupt: add missing kprobe annotations on interrupt exit symbols powerpc/64: enable MSR[EE] in irq replay pt_regs powerpc/64s/interrupt: preserve regs->softe for NMI interrupts powerpc/64s: add a table of implicit soft-masked addresses powerpc/64e: remove implicit soft-masking and interrupt exit restart logic powerpc/64e: fix CONFIG_RELOCATABLE build warnings powerpc/64s: fix hash page fault interrupt handler powerpc/4xx: Fix setup_kuep() on SMP powerpc/32s: Fix setup_{kuap/kuep}() on SMP powerpc/interrupt: Use names in check_return_regs_valid() powerpc/interrupt: Also use exit_must_hard_disable() on PPC32 powerpc/sysfs: Replace sizeof(arr)/sizeof(arr[0]) with ARRAY_SIZE powerpc/ptrace: Refactor regs_set_return_{msr/ip} powerpc/ptrace: Move set_return_regs_changed() before regs_set_return_{msr/ip} powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi() powerpc/pseries/vas: Include irqdomain.h powerpc: mark local variables around longjmp as volatile ...
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Linus Torvalds authored
Merge tag 'asm-generic-unaligned-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm/unaligned.h unification from Arnd Bergmann: "Unify asm/unaligned.h around struct helper The get_unaligned()/put_unaligned() helpers are traditionally architecture specific, with the two main variants being the "access-ok.h" version that assumes unaligned pointer accesses always work on a particular architecture, and the "le-struct.h" version that casts the data to a byte aligned type before dereferencing, for architectures that cannot always do unaligned accesses in hardware. Based on the discussion linked below, it appears that the access-ok version is not realiable on any architecture, but the struct version probably has no downsides. This series changes the code to use the same implementation on all architectures, addressing the few exceptions separately" Link: https://lore.kernel.org/lkml/75d07691-1e4f-741f-9852-38c0b4f520bc@synopsys.com/ Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100363 Link: https://lore.kernel.org/lkml/20210507220813.365382-14-arnd@kernel.org/ Link: git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git unaligned-rework-v2 Link: https://lore.kernel.org/lkml/CAHk-=whGObOKruA_bU3aPGZfoDqZM1_9wBkwREp0H0FgR-90uQ@mail.gmail.com/ * tag 'asm-generic-unaligned-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: asm-generic: simplify asm/unaligned.h asm-generic: uaccess: 1-byte access is always aligned netpoll: avoid put_unaligned() on single character mwifiex: re-fix for unaligned accesses apparmor: use get_unaligned() only for multi-byte words partitions: msdos: fix one-byte get_unaligned() asm-generic: unaligned always use struct helpers asm-generic: unaligned: remove byteshift helpers powerpc: use linux/unaligned/le_struct.h on LE power7 m68k: select CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS sh: remove unaligned access for sh4a openrisc: always use unaligned-struct header asm-generic: use asm-generic/unaligned.h for most architectures
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Linus Torvalds authored
Merge tag 'perf-tools-for-v5.14-2021-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tool updates from Arnaldo Carvalho de Melo: "Tools: - Add cgroup support for 'perf top' (-G). - Add support for KVM MSRs in 'perf kvm stat' - Support probes on init functions in 'perf probe', to support the bootconfig format. - Improve error reporting in 'perf probe'. - No need to synthesize BUILD_ID records in 'perf inject' if the MMAP2 records have build ids already. - Allow toggling source code ('s' hotkey) in 'perf annotate' in all lines. - Add itrace options support to 'perf annotate'. - Support to custom DSO filters for 'perf script'. Hardware enablement: - Support the HYBRID_TOPOLOGY and HYBRID_CPU_PMU_CAPS features in the perf.data file header. - Support PMU prefix for mem-load and mem-store events, to support hybrid (BIG little) CPUs such as Intel's Alderlake. - Support hybrid CPUs in 'perf mem' and 'perf c2c'. Hardware tracing: - Intel PT now supports tracing KVM guests. - Timestamp improvements for ARM's Coresight. Build: - Add 'make -C tools/perf build-test' entries for libopencsd/CORESIGHT=1 and libbpf/LIBBPF_DYNAMIC=1. - Use bison's --file-prefix-map option to avoid storing full paths when using O= in the perf build. Tests: - Improve the 'perf test' entries for libpfm4 and BPF counters. Misc: - Sync msr-index.h, mount.h, kvm headers with the kernel originals. - Add vendor events and metrics for Intel's Icelake Server & Client" * tag 'perf-tools-for-v5.14-2021-07-01' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (123 commits) perf session: Add missing evlist__delete when deleting a session perf annotate: Allow 's' on source code lines perf dlfilter: Add object_code() to perf_dlfilter_fns perf dlfilter: Add attr() to perf_dlfilter_fns perf dlfilter: Add srcline() to perf_dlfilter_fns perf dlfilter: Add insn() to perf_dlfilter_fns perf dlfilter: Add resolve_address() to perf_dlfilter_fns perf build: Install perf_dlfilter.h perf script: Add option to pass arguments to dlfilters perf script: Add option to list dlfilters perf script: Add dlfilter__filter_event_early() perf script: Add API for filtering via dynamically loaded shared object perf llvm: Return -ENOMEM when asprintf() fails perf cs-etm: Delay decode of non-timeless data until cs_etm__flush_events() tools headers UAPI: Synch KVM's svm.h header with the kernel tools kvm headers arm64: Update KVM headers from the kernel sources tools headers UAPI: Sync linux/kvm.h with the kernel sources tools headers cpufeatures: Sync with the kernel sources tools include UAPI: Update linux/mount.h copy tools arch x86: Sync the msr-index.h copy with the kernel sources ...
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Linus Torvalds authored
Merge more updates from Andrew Morton: "190 patches. Subsystems affected by this patch series: mm (hugetlb, userfaultfd, vmscan, kconfig, proc, z3fold, zbud, ras, mempolicy, memblock, migration, thp, nommu, kconfig, madvise, memory-hotplug, zswap, zsmalloc, zram, cleanups, kfence, and hmm), procfs, sysctl, misc, core-kernel, lib, lz4, checkpatch, init, kprobes, nilfs2, hfs, signals, exec, kcov, selftests, compress/decompress, and ipc" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (190 commits) ipc/util.c: use binary search for max_idx ipc/sem.c: use READ_ONCE()/WRITE_ONCE() for use_global_lock ipc: use kmalloc for msg_queue and shmid_kernel ipc sem: use kvmalloc for sem_undo allocation lib/decompressors: remove set but not used variabled 'level' selftests/vm/pkeys: exercise x86 XSAVE init state selftests/vm/pkeys: refill shadow register after implicit kernel write selftests/vm/pkeys: handle negative sys_pkey_alloc() return code selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random kcov: add __no_sanitize_coverage to fix noinstr for all architectures exec: remove checks in __register_bimfmt() x86: signal: don't do sas_ss_reset() until we are certain that sigframe won't be abandoned hfsplus: report create_date to kstat.btime hfsplus: remove unnecessary oom message nilfs2: remove redundant continue statement in a while-loop kprobes: remove duplicated strong free_insn_page in x86 and s390 init: print out unknown kernel parameters checkpatch: do not complain about positive return values starting with EPOLL checkpatch: improve the indented label test checkpatch: scripts/spdxcheck.py now requires python3 ...
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Wolfram Sang authored
The comment from the i801 driver is valid here, too, so copy it. Reported-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@kernel.org>
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Chris Packham authored
Prior to commit 1538d82f ("i2c: mpc: Interrupt driven transfer") the old interrupt handler would reread MPC_I2C_SR after checking the CSR_MIF bit. When the driver was re-written this was removed as it seemed unnecessary. However as it turns out this is necessary for i2c devices which do clock stretching otherwise we end up thinking the bus is still busy when processing the interrupt. Fixes: 1538d82f ("i2c: mpc: Interrupt driven transfer") Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Signed-off-by: Wolfram Sang <wsa@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull cgroup updates from Tejun Heo: - cgroup.kill is added which implements atomic killing of the whole subtree. Down the line, this should be able to replace the multiple userland implementations of "keep killing till empty". - PSI can now be turned off at boot time to avoid overhead for configurations which don't care about PSI. * 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: cgroup: make per-cgroup pressure stall tracking configurable cgroup: Fix kernel-doc cgroup: inline cgroup_task_freeze() tests/cgroup: test cgroup.kill tests/cgroup: move cg_wait_for(), cg_prepare_for_wait() tests/cgroup: use cgroup.kill in cg_killall() docs/cgroup: add entry for cgroup.kill cgroup: introduce cgroup.kill
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git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpuLinus Torvalds authored
Pull percpu updates from Dennis Zhou: - percpu chunk depopulation - depopulate backing pages for chunks with empty pages when we exceed a global threshold without those pages. This lets us reclaim a portion of memory that would previously be lost until the full chunk would be freed (possibly never). - memcg accounting cleanup - previously separate chunks were managed for normal allocations and __GFP_ACCOUNT allocations. These are now consolidated which cleans up the code quite a bit. - a few misc clean ups for clang warnings * 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu: percpu: optimize locking in pcpu_balance_workfn() percpu: initialize best_upa variable percpu: rework memcg accounting mm, memcg: introduce mem_cgroup_kmem_disabled() mm, memcg: mark cgroup_memory_nosocket, nokmem and noswap as __ro_after_init percpu: make symbol 'pcpu_free_slot' static percpu: implement partial chunk depopulation percpu: use pcpu_free_slot instead of pcpu_nr_slots - 1 percpu: factor out pcpu_check_block_hint() percpu: split __pcpu_balance_workfn() percpu: fix a comment about the chunks ordering
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linuxLinus Torvalds authored
Pull MIPS updates from Thomas Bogendoerfer: - add support for OpeneEmbed SOM9331 board - Ingenic fixes/improvments - other fixes and cleanups * tag 'mips_5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (39 commits) MIPS: Fix PKMAP with 32-bit MIPS huge page support MIPS: CI20: Add second percpu timer for SMP. MIPS: CI20: Reduce clocksource to 750 kHz. MIPS: Ingenic: Add MAC syscon nodes for Ingenic SoCs. dt-bindings: clock: Add documentation for MAC PHY control bindings. MIPS: X1830: Respect cell count of common properties. MIPS: set mips32r5 for virt extensions MIPS: loongsoon64: Reserve memory below starting pfn to prevent Oops MIPS: MT extensions are not available on MIPS32r1 mips/kvm: Use BUG_ON instead of if condition followed by BUG MIPS: OCTEON: octeon-usb: Use devm_platform_get_and_ioremap_resource() MIPS: add PMD table accounting into MIPS'pmd_alloc_one MIPS: Loongson64: fix spelling of SPDX tag MIPS: ingenic: rs90: Add dedicated VRAM memory region MIPS: ingenic: gcw0: Set codec to cap-less mode for FM radio MIPS: ingenic: jz4780: Fix I2C nodes to match DT doc MIPS: ingenic: Select CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER MIPS: Kconfig: ingenic: Ensure MACH_INGENIC_GENERIC selects all SoCs MIPS: cpu-probe: Fix FPU detection on Ingenic JZ4760(B) MIPS: boot: Support specifying UART port on Ingenic SoCs ...
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- 01 Jul, 2021 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds authored
Pull pin control updates from Linus Walleij: "This is the bulk of pin control changes for the v5.14 kernel. Not so much going on. No core changes, just drivers. The most interesting would be that MIPS Ralink is migrating to pin control and we have some bindings but not yet code for the Apple M1 pin controller. New drivers: - Last merge window we created a driver for the Ralink RT2880. We are now moving the Ralink SoC pin control drivers out of the MIPS architecture code and into the pin control subsystem. This concerns RT288X, MT7620, RT305X, RT3883 and MT7621. - Qualcomm SM6125 SoC pin control driver. - Qualcomm spmi-gpio support for PM7325. - Qualcomm spmi-mpp also handles PMI8994 (just a compatible string) - Mediatek MT8365 SoC pin controller. - New device HID for the AMD GPIO controller. Improvements: - Pin bias config support for a slew of Renesas pin controllers. - Incremental improvements and non-urgent bug fixes to the Renesas SoC drivers. - Implement irq_set_wake on the AMD pin controller so we can wake up from external pin events. Misc: - Devicetree bindings for the Apple M1 pin controller, we will probably see a proper driver for this soon as well" * tag 'pinctrl-v5.14-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (54 commits) pinctrl: ralink: rt305x: add missing include pinctrl: stm32: check for IRQ MUX validity during alloc() pinctrl: zynqmp: some code cleanups drivers: qcom: pinctrl: Add pinctrl driver for sm6125 dt-bindings: pinctrl: qcom: sm6125: Document SM6125 pinctrl driver dt-bindings: pinctrl: mcp23s08: add documentation for reset-gpios pinctrl: mcp23s08: Add optional reset GPIO pinctrl: mediatek: fix mode encoding pinctrl: mcp23s08: Fix missing unlock on error in mcp23s08_irq() pinctrl: bcm: Constify static pinmux_ops pinctrl: bcm: Constify static pinctrl_ops pinctrl: ralink: move RT288X SoC pinmux config into a new 'pinctrl-rt288x.c' file pinctrl: ralink: move MT7620 SoC pinmux config into a new 'pinctrl-mt7620.c' file pinctrl: ralink: move RT305X SoC pinmux config into a new 'pinctrl-rt305x.c' file pinctrl: ralink: move RT3883 SoC pinmux config into a new 'pinctrl-rt3883.c' file pinctrl: ralink: move MT7621 SoC pinmux config into a new 'pinctrl-mt7621.c' file pinctrl: ralink: move ralink architecture pinmux header into the driver pinctrl: single: config: enable the pin's input pinctrl: mtk: Fix mt8365 Kconfig dependency pinctrl: mcp23s08: fix race condition in irq handler ...
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