#ifndef PERF_UTIL_PERF_HOOKS_H #define PERF_UTIL_PERF_HOOKS_H #ifdef __cplusplus extern "C" { #endif typedef void (*perf_hook_func_t)(void *ctx); struct perf_hook_desc { const char * const hook_name; perf_hook_func_t * const p_hook_func; void *hook_ctx; }; extern void perf_hooks__invoke(const struct perf_hook_desc *); extern void perf_hooks__recover(void); #define PERF_HOOK(name) \ extern struct perf_hook_desc __perf_hook_desc_##name; \ static inline void perf_hooks__invoke_##name(void) \ { \ perf_hooks__invoke(&__perf_hook_desc_##name); \ } #include "perf-hooks-list.h" #undef PERF_HOOK extern int perf_hooks__set_hook(const char *hook_name, perf_hook_func_t hook_func, void *hook_ctx); extern perf_hook_func_t perf_hooks__get_hook(const char *hook_name); #ifdef __cplusplus } #endif #endif gi/linux/net-next.git/'>net-next.git
net-next plumbingsTobias Klauser
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authorChristoph Hellwig <hch@lst.de>2017-01-30 13:15:41 +0100
committerBjorn Helgaas <bhelgaas@google.com>2017-02-02 10:35:46 -0600
commitdfef358bd1beb4e7b5c94eca944be9cd23dfc752 (patch)
treeb9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c /include/net/sock_reuseport.h
parent030305d69fc6963c16003f50d7e8d74b02d0a143 (diff)
PCI/MSI: Don't apply affinity if there aren't enough vectors left
Bart reported a problem wіth an out of bounds access in the low-level IRQ affinity code, which we root caused to the qla2xxx driver assigning all its MSI-X vectors to the pre and post vectors, and not having any left for the actually spread IRQs. Fix this issue by not asking for affinity assignment when there are no vectors to assign left. Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()") Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com Reported-by: Bart Van Assche <bart.vanassche@sandisk.com> Tested-by: Bart Van Assche <bart.vanassche@sandisk.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'include/net/sock_reuseport.h')