#include "util.h" #include "../debug.h" /* * Default error logging functions */ static int perf_stdio__error(const char *format, va_list args) { fprintf(stderr, "Error:\n"); vfprintf(stderr, format, args); return 0; } static int perf_stdio__warning(const char *format, va_list args) { fprintf(stderr, "Warning:\n"); vfprintf(stderr, format, args); return 0; } static struct perf_error_ops default_eops = { .error = perf_stdio__error, .warning = perf_stdio__warning, }; static struct perf_error_ops *perf_eops = &default_eops; int ui__error(const char *format, ...) { int ret; va_list args; va_start(args, format); ret = perf_eops->error(format, args); va_end(args); return ret; } int ui__warning(const char *format, ...) { int ret; va_list args; va_start(args, format); ret = perf_eops->warning(format, args); va_end(args); return ret; } /** * perf_error__register - Register error logging functions * @eops: The pointer to error logging function struct * * Register UI-specific error logging functions. Before calling this, * other logging functions should be unregistered, if any. */ int perf_error__register(struct perf_error_ops *eops) { if (perf_eops != &default_eops) return -1; perf_eops = eops; return 0; } /** * perf_error__unregister - Unregister error logging functions * @eops: The pointer to error logging function struct * * Unregister already registered error logging functions. */ int perf_error__unregister(struct perf_error_ops *eops) { if (perf_eops != eops) return -1; perf_eops = &default_eops; return 0; } et-next.git/'>summaryrefslogtreecommitdiff
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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /sound/soc/intel/boards/broadwell.c
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'sound/soc/intel/boards/broadwell.c')