- Jul 27, 2015
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James Morse authored
When a new cpu feature is available, the cpu feature bits will have some initial value, which is incremented when the feature is updated. This patch changes 'register_value' to be 'min_field_value', and checks the feature bits value (interpreted as a signed int) is greater than this minimum. Acked-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
James Morse <james.morse@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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James Morse authored
This patch adds an 'enable()' callback to cpu capability/feature detection, allowing features that require some setup or configuration to get this opportunity once the feature has been detected. Acked-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
James Morse <james.morse@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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James Morse authored
Later patches need config_sctlr_el1 to set/clear bits in the sctlr_el1 register. This patch moves this function into header a file. Acked-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
James Morse <james.morse@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Daniel Thompson authored
Convert the dynamic patching for ARM64_HAS_SYSREG_GIC_CPUIF over to the newly added alternative assembler macros. Acked-by:
Marc Zyngier <marc.zyngier@arm.com> Signed-off-by:
Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Daniel Thompson authored
Convert the dynamic patching for ARM64_WORKAROUND_845719 over to the newly added alternative assembler macros. Signed-off-by:
Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Daniel Thompson authored
Convert the dynamic patching for ARM64_WORKAROUND_CLEAN_CACHE over to the newly added alternative assembler macros. Signed-off-by:
Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Daniel Thompson authored
The existing alternative_insn macro has some limitations that make it hard to work with. In particular the fact it takes instructions from it own macro arguments means it doesn't play very nicely with C pre-processor macros because the macro arguments look like a string to the C pre-processor. Workarounds are (probably) possible but things start to look ugly. Introduce an alternative set of macros that allows instructions to be presented to the assembler as normal and switch everything over to the new macros. Signed-off-by:
Daniel Thompson <daniel.thompson@linaro.org> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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James Morse authored
Based on arch/arm/include/asm/cputype.h, this function does the shifting and sign extension necessary when accessing cpu feature fields. Signed-off-by:
James Morse <james.morse@arm.com> Suggested-by:
Russell King <linux@arm.linux.org.uk> Acked-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Mark Rutland authored
Most of the cache events an architecture might support do not map well to those provided by the ARM architecture, and as such most entries in the event number maps are *_UNSUPPORTED. Unfortuantely as 0 is a valid physical event identifier, the *_UNSUPPORTED macros expand to a non-zero value and thus each unsupported event must be explicitly initialised as such. This leads to large diffs when adding support for a new CPU, and makes it difficult to spot the important information. This patch follows arch/arm/ in making use of PERF_*_ALL_UNSUPPORTED macros to initialise all entries to *_UNSUPPORTED before overriding this for the specific events we actually support, resulting in a significant source code reduction. Signed-off-by:
Mark Rutland <mark.rutland@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Jisheng Zhang authored
Remove paragraph about writing to the Free Software Foundation's mailing address from GPL notice. Signed-off-by:
Jisheng Zhang <jszhang@marvell.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Robin Murphy authored
The default dma_common_get_sgtable() implementation relies on the CPU address of the buffer being a regular lowmem address. This is not always the case on arm64, since allocations from the various DMA pools may have remapped vmalloc addresses, rendering the use of virt_to_page() invalid. Fix this by providing our own implementation based on the fact that we can safely derive a physical address from the DMA address in both cases. CC: Jon Medhurst <tixy@linaro.org> Signed-off-by:
Robin Murphy <robin.murphy@arm.com> [will: made static] Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Will Deacon authored
Nobody seems to be producing !SMP systems anymore, so this is just becoming a source of kernel bugs, particularly if people want to use coherent DMA with non-shared pages. This patch forces CONFIG_SMP=y for arm64, removing a modest amount of code in the process. Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Mark Rutland authored
We currently bundle the callchain handling code with the PMU code, despite the fact the two are distinct, and the former can be useful even in the absence of the latter. Follow the example of arch/arm and factor the callchain handling into its own file dependent on CONFIG_PERF_EVENTS rather than CONFIG_HW_PERF_EVENTS. Signed-off-by:
Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Will Deacon authored
The AArch64 instruction set contains load/store pair memory accessors, so use these in our copy_*_user routines to transfer 16 bytes per iteration. Reviewed-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Catalin Marinas authored
The compat ptrace interface allows access to the TLS register, hardware breakpoints and watchpoints, syscall number. However, a native task using the native ptrace interface to debug compat tasks (e.g. multi-arch gdb) only has access to the general and VFP register sets. The compat ptrace interface cannot be accessed from a native task. This patch adds a new user_aarch32_ptrace_view which contains the TLS, hardware breakpoint/watchpoint and syscall number regsets in addition to the existing GPR and VFP regsets. This view is backwards compatible with the previous kernels. Core dumping of 32-bit tasks and compat ptrace are not affected since the original user_aarch32_view is preserved. Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Reported-by:
Yao Qi <yao.qi@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Olof Johansson authored
Plumb up Makefile arguments for the already supported formats in the kbuild system: lz4, bzip2, lzma, and lzo. Note that just as with Image.gz, these images are not self-decompressing and the booting firmware still needs to handle decompression before launching the kernel image. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Catalin Marinas authored
The ARMv8.1 architecture extensions introduce support for hardware updates of the access and dirty information in page table entries. With TCR_EL1.HA enabled, when the CPU accesses an address with the PTE_AF bit cleared in the page table, instead of raising an access flag fault the CPU sets the actual page table entry bit. To ensure that kernel modifications to the page tables do not inadvertently revert a change introduced by hardware updates, the exclusive monitor (ldxr/stxr) is adopted in the pte accessors. When TCR_EL1.HD is enabled, a write access to a memory location with the DBM (Dirty Bit Management) bit set in the corresponding pte automatically clears the read-only bit (AP[2]). Such DBM bit maps onto the Linux PTE_WRITE bit and to check whether a writable (DBM set) page is dirty, the kernel tests the PTE_RDONLY bit. In order to allow read-only and dirty pages, the kernel needs to preserve the software dirty bit. The hardware dirty status is transferred to the software dirty bit in ptep_set_wrprotect() (using load/store exclusive loop) and pte_modify(). Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Mark Salter authored
Commit 68234df4 ("arm64: kill flush_cache_all()") removed soft_reset() from the kernel. This was the only caller of setup_mm_for_reboot(), so remove that also. Signed-off-by:
Mark Salter <msalter@redhat.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Will Deacon authored
Mark Brown reported an allnoconfig build failure in -next: Today's linux-next fails to build an arm64 allnoconfig due to "mm: make GUP handle pfn mapping unless FOLL_GET is requested" which causes: > arm64-allnoconfig > ../mm/gup.c:51:4: error: implicit declaration of function 'update_mmu_cache' [-Werror=implicit-function-declaration] Fix the error by moving the function to asm/pgtable.h, as is the case for most other architectures. Reported-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Robin Murphy authored
Since commit 9d3bfbb4 ("arm64: Combine coherent and non-coherent swiotlb dma_ops"), __dma_common_mmap is no longer shared between two callers, so roll it into the remaining one. Signed-off-by:
Robin Murphy <robin.murphy@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Daniel Thompson authored
Commit 68234df4 ("arm64: kill flush_cache_all()") removed the only users of these macros. Signed-off-by:
Daniel Thompson <daniel.thompson@linaro.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Rohit Thapliyal authored
On 64bit kernel, the dump_mem gives 32 bit addresses on the stack dump. This gives unorganized information regarding the 64bit values on the stack. Hence, modified to get a complete 64bit memory dump. With patch: [ 93.534801] Process insmod (pid: 1587, stack limit = 0xffffffc976be4058) [ 93.541441] Stack: (0xffffffc976be7cf0 to 0xffffffc976be8000) [ 93.547136] 7ce0: ffffffc976be7d00 ffffffc00008163c [ 93.554898] 7d00: ffffffc976be7d40 ffffffc0000f8a44 ffffffc00098ef38 ffffffbffc000088 [ 93.562659] 7d20: ffffffc00098ef50 ffffffbffc0000c0 0000000000000001 ffffffbffc000070 [ 93.570419] 7d40: ffffffc976be7e40 ffffffc0000f935c 0000000000000000 000000002b424090 [ 93.578179] 7d60: 000000002b424010 0000007facc555f4 0000000080000000 0000000000000015 [ 93.585937] 7d80: 0000000000000116 0000000000000069 ffffffc00097b000 ffffffc976be4000 [ 93.593694] 7da0: 0000000000000064 0000000000000072 000000000000006e 000000000000003f [ 93.601453] 7dc0: 000000000000feff 000000000000fff1 ffffffbffc002028 0000000000000124 [ 93.609211] 7de0: ffffffc976be7e10 0000000000000001 ffffff8000000000 ffffffbbffff0000 [ 93.616969] 7e00: ffffffc976be7e60 0000000000000000 0000000000000000 0000000000000000 [ 93.624726] 7e20: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 [ 93.632484] 7e40: 0000007fcc474550 ffffffc0000841ec 000000002b424010 0000007facda0710 [ 93.640241] 7e60: ffffffffffffffff ffffffc0000be6dc ffffff80007d2000 000000000001c010 [ 93.647999] 7e80: ffffff80007e0ae0 ffffff80007e09d0 ffffff80007edf70 0000000000000288 [ 93.655757] 7ea0: 00000000000002e8 0000000000000000 0000000000000000 0000001c0000001b [ 93.663514] 7ec0: 0000000000000009 0000000000000007 000000002b424090 000000000001c010 [ 93.671272] 7ee0: 000000002b424010 0000007faccd3a48 0000000000000000 0000000000000000 [ 93.679030] 7f00: 0000007fcc4743f8 0000007fcc4743f8 0000000000000069 0000000000000003 [ 93.686787] 7f20: 0101010101010101 0000000000000004 0000000000000020 00000000000003f3 [ 93.694544] 7f40: 0000007facb95664 0000007facda7030 0000007facc555d0 0000000000498378 [ 93.702301] 7f60: 0000000000000000 000000002b424010 0000007facda0710 000000002b424090 [ 93.710058] 7f80: 0000007fcc474698 0000000000498000 0000007fcc474ebb 0000000000474f58 [ 93.717815] 7fa0: 0000000000498000 0000000000000000 0000000000000000 0000007fcc474550 [ 93.725573] 7fc0: 00000000004104bc 0000007fcc474430 0000007facc555f4 0000000080000000 [ 93.733330] 7fe0: 000000002b424090 0000000000000069 0950020128000244 4104000008000004 [ 93.741084] Call trace: The above output makes a debugger life a lot more easier. Signed-off-by:
Rohit Thapliyal <r.thapliyal@samsung.com> Signed-off-by:
Maninder Singh <maninder1.s@samsung.com> Reviewed-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Sudeep Holla authored
arch_find_n_match_cpu_physical_id parses the device tree to get the device node for a given logical cpu index. However, since ARM PMUs get probed after the CPU device nodes are stashed while registering the cpus, we can use of_cpu_device_node_get to avoid another DT parse. This patch replaces arch_find_n_match_cpu_physical_id with of_cpu_device_node_get to reuse the stashed value directly instead. Cc: Will Deacon <will.deacon@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by:
Sudeep Holla <sudeep.holla@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Suzuki K. Poulose authored
ARM64 pmu prints an error message in event_init() when no hardware PMU is available. This is pretty annoying as it keeps printing the message for every single trial, flooding the kernel logs, unnecessarily. The return code is sufficient for the user to figure out the reason. Signed-off-by:
Suzuki K. Poulose <suzuki.poulose@arm.com> Signed-off-by:
Will Deacon <will.deacon@arm.com>
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull perf fix from Thomas Gleixner: "A single fix for the intel cqm perf facility to prevent IPIs from interrupt context" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel/cqm: Return cached counter value from IRQ context
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Thomas Gleixner: "This update contains: - the manual revert of the SYSCALL32 changes which caused a regression - a fix for the MPX vma handling - three fixes for the ioremap 'is ram' checks. - PAT warning fixes - a trivial fix for the size calculation of TLB tracepoints - handle old EFI structures gracefully This also contains a PAT fix from Jan plus a revert thereof. Toshi explained why the code is correct" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/mm/pat: Revert 'Adjust default caching mode translation tables' x86/asm/entry/32: Revert 'Do not use R9 in SYSCALL32' commit x86/mm: Fix newly introduced printk format warnings mm: Fix bugs in region_is_ram() x86/mm: Remove region_is_ram() call from ioremap x86/mm: Move warning from __ioremap_check_ram() to the call site x86/mm/pat, drivers/media/ivtv: Move the PAT warning and replace WARN() with pr_warn() x86/mm/pat, drivers/infiniband/ipath: Replace WARN() with pr_warn() x86/mm/pat: Adjust default caching mode translation tables x86/fpu: Disable dependent CPU features on "noxsave" x86/mpx: Do not set ->vm_ops on MPX VMAs x86/mm: Add parenthesis for TLB tracepoint size calculation efi: Handle memory error structures produced based on old versions of standard
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- Jul 26, 2015
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Thomas Gleixner authored
Toshi explains: "No, the default values need to be set to the fallback types, i.e. minimal supported mode. For WC and WT, UC is the fallback type. When PAT is disabled, pat_init() does update the tables below to enable WT per the default BIOS setup. However, when PAT is enabled, but CPU has PAT -errata, WT falls back to UC per the default values." Revert: ca1fec58 'x86/mm/pat: Adjust default caching mode translation tables' Requested-by:
Toshi Kani <toshi.kani@hp.com> Cc: Jan Beulich <jbeulich@suse.de> Link: http://lkml.kernel.org/r/1437577776.3214.252.camel@hp.com Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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Matt Fleming authored
Peter reported the following potential crash which I was able to reproduce with his test program, [ 148.765788] ------------[ cut here ]------------ [ 148.765796] WARNING: CPU: 34 PID: 2840 at kernel/smp.c:417 smp_call_function_many+0xb6/0x260() [ 148.765797] Modules linked in: [ 148.765800] CPU: 34 PID: 2840 Comm: perf Not tainted 4.2.0-rc1+ #4 [ 148.765803] ffffffff81cdc398 ffff88085f105950 ffffffff818bdfd5 0000000000000007 [ 148.765805] 0000000000000000 ffff88085f105990 ffffffff810e413a 0000000000000000 [ 148.765807] ffffffff82301080 0000000000000022 ffffffff8107f640 ffffffff8107f640 [ 148.765809] Call Trace: [ 148.765810] <NMI> [<ffffffff818bdfd5>] dump_stack+0x45/0x57 [ 148.765818] [<ffffffff810e413a>] warn_slowpath_common+0x8a/0xc0 [ 148.765822] [<ffffffff8107f640>] ? intel_cqm_stable+0x60/0x60 [ 148.765824] [<ffffffff8107f640>] ? intel_cqm_stable+0x60/0x60 [ 148.765825] [<ffffffff810e422a>] warn_slowpath_null+0x1a/0x20 [ 148.765827] [<ffffffff811613f6>] smp_call_function_many+0xb6/0x260 [ 148.765829] [<ffffffff8107f640>] ? intel_cqm_stable+0x60/0x60 [ 148.765831] [<ffffffff81161748>] on_each_cpu_mask+0x28/0x60 [ 148.765832] [<ffffffff8107f6ef>] intel_cqm_event_count+0x7f/0xe0 [ 148.765836] [<ffffffff811cdd35>] perf_output_read+0x2a5/0x400 [ 148.765839] [<ffffffff811d2e5a>] perf_output_sample+0x31a/0x590 [ 148.765840] [<ffffffff811d333d>] ? perf_prepare_sample+0x26d/0x380 [ 148.765841] [<ffffffff811d3497>] perf_event_output+0x47/0x60 [ 148.765843] [<ffffffff811d36c5>] __perf_event_overflow+0x215/0x240 [ 148.765844] [<ffffffff811d4124>] perf_event_overflow+0x14/0x20 [ 148.765847] [<ffffffff8107e7f4>] intel_pmu_handle_irq+0x1d4/0x440 [ 148.765849] [<ffffffff811d07a6>] ? __perf_event_task_sched_in+0x36/0xa0 [ 148.765853] [<ffffffff81219bad>] ? vunmap_page_range+0x19d/0x2f0 [ 148.765854] [<ffffffff81219d11>] ? unmap_kernel_range_noflush+0x11/0x20 [ 148.765859] [<ffffffff814ce6fe>] ? ghes_copy_tofrom_phys+0x11e/0x2a0 [ 148.765863] [<ffffffff8109e5db>] ? native_apic_msr_write+0x2b/0x30 [ 148.765865] [<ffffffff8109e44d>] ? x2apic_send_IPI_self+0x1d/0x20 [ 148.765869] [<ffffffff81065135>] ? arch_irq_work_raise+0x35/0x40 [ 148.765872] [<ffffffff811c8d86>] ? irq_work_queue+0x66/0x80 [ 148.765875] [<ffffffff81075306>] perf_event_nmi_handler+0x26/0x40 [ 148.765877] [<ffffffff81063ed9>] nmi_handle+0x79/0x100 [ 148.765879] [<ffffffff81064422>] default_do_nmi+0x42/0x100 [ 148.765880] [<ffffffff81064563>] do_nmi+0x83/0xb0 [ 148.765884] [<ffffffff818c7c0f>] end_repeat_nmi+0x1e/0x2e [ 148.765886] [<ffffffff811d07a6>] ? __perf_event_task_sched_in+0x36/0xa0 [ 148.765888] [<ffffffff811d07a6>] ? __perf_event_task_sched_in+0x36/0xa0 [ 148.765890] [<ffffffff811d07a6>] ? __perf_event_task_sched_in+0x36/0xa0 [ 148.765891] <<EOE>> [<ffffffff8110ab66>] finish_task_switch+0x156/0x210 [ 148.765898] [<ffffffff818c1671>] __schedule+0x341/0x920 [ 148.765899] [<ffffffff818c1c87>] schedule+0x37/0x80 [ 148.765903] [<ffffffff810ae1af>] ? do_page_fault+0x2f/0x80 [ 148.765905] [<ffffffff818c1f4a>] schedule_user+0x1a/0x50 [ 148.765907] [<ffffffff818c666c>] retint_careful+0x14/0x32 [ 148.765908] ---[ end trace e33ff2be78e14901 ]--- The CQM task events are not safe to be called from within interrupt context because they require performing an IPI to read the counter value on all sockets. And performing IPIs from within IRQ context is a "no-no". Make do with the last read counter value currently event in event->count when we're invoked in this context. Reported-by:
Peter Zijlstra <peterz@infradead.org> Signed-off-by:
Matt Fleming <matt.fleming@intel.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vikas Shivappa <vikas.shivappa@intel.com> Cc: Kanaka Juvva <kanaka.d.juvva@intel.com> Cc: Will Auld <will.auld@intel.com> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/1437490509-15373-1-git-send-email-matt@codeblueprint.co.uk Signed-off-by:
Thomas Gleixner <tglx@linutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here's a few USB and PHY fixes for 4.2-rc4. Nothing major, the shortlog has the full details. All of these have been in linux-next successfully" * tag 'usb-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (21 commits) USB: OHCI: fix bad #define in ohci-tmio.c cdc-acm: Destroy acm_minors IDR on module exit usb-storage: Add ignore-device quirk for gm12u320 based usb mini projectors usb-storage: ignore ZTE MF 823 card reader in mode 0x1225 USB: OHCI: Fix race between ED unlink and URB submission usb: core: lpm: set lpm_capable for root hub device xhci: do not report PLC when link is in internal resume state xhci: prevent bus_suspend if SS port resuming in phase 1 xhci: report U3 when link is in resume state xhci: Calculate old endpoints correctly on device reset usb: xhci: Bugfix for NULL pointer deference in xhci_endpoint_init() function xhci: Workaround to get D3 working in Intel xHCI xhci: call BIOS workaround to enable runtime suspend on Intel Braswell usb: dwc3: Reset the transfer resource index on SET_INTERFACE usb: gadget: udc: core: Fix argument of dma_map_single for IOMMU usb: gadget: mv_udc_core: fix phy_regs I/O memory leak usb: ulpi: ulpi_init should be executed in subsys_initcall phy: berlin-usb: fix divider for BG2 phy: berlin-usb: fix divider for BG2CD phy/pxa: add HAS_IOMEM dependency ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial driver fixes from Greg KH: "Here are a number of small serial and tty fixes for reported issues. All have been in linux-next successfully" * tag 'tty-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: tty: vt: Fix !TASK_RUNNING diagnostic warning from paste_selection() serial: core: Fix crashes while echoing when closing m32r: Add ioreadXX/iowriteXX big-endian mmio accessors Revert "serial: imx: initialized DMA w/o HW flow enabled" sc16is7xx: fix FIFO address of secondary UART sc16is7xx: fix Kconfig dependencies serial: etraxfs-uart: Fix release etraxfs_uart_ports tty/vt: Fix the memory leak in visual_init serial: amba-pl011: Fix devm_ioremap_resource return value check n_tty: signal and flush atomically
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging driver fixes from Greg KH: "Here are a number of iio and staging driver fixes for reported issues for 4.2-rc4. All have been in linux-next for a while with no problems" * tag 'staging-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (34 commits) iio:light:stk3310: make endianness independent of host iio:light:stk3310: move device register to end of probe iio: mma8452: use iio event type IIO_EV_TYPE_MAG iio: mcp320x: Fix NULL pointer dereference iio: adc: vf610: fix the adc register read fail issue iio: mlx96014: Replace offset sign iio: magnetometer: mmc35240: fix SET/RESET sequence iio: magnetometer: mmc35240: Fix SET/RESET mask iio: magnetometer: mmc35240: Fix crash in pm suspend iio:magnetometer:bmc150_magn: output intended variable iio:magnetometer:bmc150_magn: add regmap dependency staging: vt6656: check ieee80211_bss_conf bssid not NULL staging: vt6655: check ieee80211_bss_conf bssid not NULL iio: tmp006: Check channel info on write iio: sx9500: Add missing init in sx9500_buffer_pre{en,dis}able() iio:light:ltr501: fix regmap dependency iio:light:ltr501: fix variable in ltr501_init iio: sx9500: fix bug in compensation code iio: sx9500: rework error handling of raw readings iio: magnetometer: mmc35240: fix available sampling frequencies ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver fixes from Greg KH: "Here are some char and misc driver fixes for reported issues. One parport patch is reverted as it was incorrect, thanks to testing by the 0-day bot" * tag 'char-misc-4.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: parport: Revert "parport: fix memory leak" mei: prevent unloading mei hw modules while the device is opened. misc: mic: scif bug fix for vmalloc_to_page crash parport: fix freeing freed memory parport: fix memory leak parport: fix error handling
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Sudip Mukherjee authored
This reverts commit 23c40591 ("parport: fix memory leak") par_dev->state was already being removed in parport_unregister_device(). Reported-by:
Ying Huang <ying.huang@intel.com> Signed-off-by:
Sudip Mukherjee <sudip@vectorindia.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Linus Torvalds authored
Merge tag 'trace-v4.2-rc2-fix3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull ftrace fix from Steven Rostedt: "Back in 3.16 the ftrace code was redesigned and cleaned up to remove the double iteration list (one for registered ftrace ops, and one for registered "global" ops), to just use one list. That simplified the code but also broke the function tracing filtering on pid. This updates the code to handle the filtering again with the new logic" * tag 'trace-v4.2-rc2-fix3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: ftrace: Fix breakage of set_ftrace_pid
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git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimmLinus Torvalds authored
Pull libnvdimm fix from Dan Williams: "A minor fix for the libnvdimm subsystem. This is not critical. The problem can be worked around in userspace by putting the namespace temporarily into raw mode (ndctl_namespace_set_raw_mode() from libndctl), but that is awkward for management utilities. * 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/nvdimm: libnvdimm: fix namespace seed creation
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git://neil.brown.name/mdLinus Torvalds authored
Pull md fixes from Neil Brown: "Some md fixes for 4.2 Several are tagged for -stable. A few aren't because they are not very, serious or because they are in the 'experimental' cluster code" * tag 'md/4.2-fixes' of git://neil.brown.name/md: md/raid5: clear R5_NeedReplace when no longer needed. Fix read-balancing during node failure md-cluster: fix bitmap sub-offset in bitmap_read_sb md: Return error if request_module fails and returns positive value md: Skip cluster setup in case of error while reading bitmap md/raid1: fix test for 'was read error from last working device'. md: Skip cluster setup for dm-raid md: flush ->event_work before stopping array. md/raid10: always set reshape_safe when initializing reshape_position. md/raid5: avoid races when changing cache size.
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git://git.infradead.org/linux-mtdLinus Torvalds authored
Pull MTD fixes from Brian Norris: "Two trivial updates. I meant to send these much earlier, but I've been preoccupied. - Add MAINTAINERS entry for diskonchip g3 driver - Fix an overlooked conflict in bitfield value assignments The latter update is a bit overdue, but there's no reason to wait any longer" * tag 'for-linus-20150724' of git://git.infradead.org/linux-mtd: mtd: nand: Fix NAND_USE_BOUNCE_BUFFER flag conflict MAINTAINERS: mtd: docg3: add docg3 maintainer
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Dan Williams authored
A new BLK namespace "seed" device is created whenever the current seed is successfully probed. However, if that namespace is assigned to a BTT it may never directly experience a successful probe as it is a subordinate device to a BTT configuration. The effect of the current code is that no new namespaces can be instantiated, after the seed namespace, to consume available BLK DPA capacity. Fix this by treating a successful BTT probe event as a successful probe event for the backing namespace. Reported-by:
Nicholas Moulin <nicholas.w.moulin@linux.intel.com> Signed-off-by:
Dan Williams <dan.j.williams@intel.com>
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- Jul 25, 2015
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fixes from Jens Axboe: "Four smaller fixes for the current series. This contains: - A fix for clones of discard bio's, that can cause data corruption. From Martin. - A fix for null_blk, where in certain queue modes it could access a request after it had been freed. From Mike Krinkin. - An error handling leak fix for blkcg, from Tejun. - Also from Tejun, export of the functions that a file system needs to implement cgroup writeback support" * 'for-linus' of git://git.kernel.dk/linux-block: block: Do a full clone when splitting discard bios block: export bio_associate_*() and wbc_account_io() blkcg: fix gendisk reference leak in blkg_conf_prep() null_blk: fix use-after-free problem
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