/* * Copyright 2014, Michael Ellerman, IBM Corp. * Licensed under GPLv2. */ #ifndef _SELFTESTS_POWERPC_PMU_EBB_TRACE_H #define _SELFTESTS_POWERPC_PMU_EBB_TRACE_H #include "utils.h" #define TRACE_TYPE_REG 1 #define TRACE_TYPE_COUNTER 2 #define TRACE_TYPE_STRING 3 #define TRACE_TYPE_INDENT 4 #define TRACE_TYPE_OUTDENT 5 struct trace_entry { u8 type; u8 length; u8 data[0]; }; struct trace_buffer { u64 size; bool overflow; void *tail; u8 data[0]; }; struct trace_buffer *trace_buffer_allocate(u64 size); int trace_log_reg(struct trace_buffer *tb, u64 reg, u64 value); int trace_log_counter(struct trace_buffer *tb, u64 value); int trace_log_string(struct trace_buffer *tb, char *str); int trace_log_indent(struct trace_buffer *tb); int trace_log_outdent(struct trace_buffer *tb); void trace_buffer_print(struct trace_buffer *tb); void trace_print_location(struct trace_buffer *tb); #endif /* _SELFTESTS_POWERPC_PMU_EBB_TRACE_H */ od='get'> 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 /tools/testing/selftests/sysctl
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 'tools/testing/selftests/sysctl')