#undef TRACE_SYSTEM #define TRACE_SYSTEM context_tracking #if !defined(_TRACE_CONTEXT_TRACKING_H) || defined(TRACE_HEADER_MULTI_READ) #define _TRACE_CONTEXT_TRACKING_H #include DECLARE_EVENT_CLASS(context_tracking_user, TP_PROTO(int dummy), TP_ARGS(dummy), TP_STRUCT__entry( __field( int, dummy ) ), TP_fast_assign( __entry->dummy = dummy; ), TP_printk("%s", "") ); /** * user_enter - called when the kernel resumes to userspace * @dummy: dummy arg to make trace event macro happy * * This event occurs when the kernel resumes to userspace after * an exception or a syscall. */ DEFINE_EVENT(context_tracking_user, user_enter, TP_PROTO(int dummy), TP_ARGS(dummy) ); /** * user_exit - called when userspace enters the kernel * @dummy: dummy arg to make trace event macro happy * * This event occurs when userspace enters the kernel through * an exception or a syscall. */ DEFINE_EVENT(context_tracking_user, user_exit, TP_PROTO(int dummy), TP_ARGS(dummy) ); #endif /* _TRACE_CONTEXT_TRACKING_H */ /* This part must be outside protection */ #include e='master'>master 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 /net/netlink/Makefile
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 'net/netlink/Makefile')