/* * Copyright (C) 2010 Red Hat Inc, Steven Rostedt * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; * version 2.1 of the License (not later!) * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, see * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include #include #include #include "event-parse.h" #define MINORBITS 20 #define MINORMASK ((1U << MINORBITS) - 1) #define MAJOR(dev) ((unsigned int) ((dev) >> MINORBITS)) #define MINOR(dev) ((unsigned int) ((dev) & MINORMASK)) static unsigned long long process_jbd2_dev_to_name(struct trace_seq *s, unsigned long long *args) { unsigned int dev = args[0]; trace_seq_printf(s, "%d:%d", MAJOR(dev), MINOR(dev)); return 0; } static unsigned long long process_jiffies_to_msecs(struct trace_seq *s, unsigned long long *args) { unsigned long long jiffies = args[0]; trace_seq_printf(s, "%lld", jiffies); return jiffies; } int PEVENT_PLUGIN_LOADER(struct pevent *pevent) { pevent_register_print_function(pevent, process_jbd2_dev_to_name, PEVENT_FUNC_ARG_STRING, "jbd2_dev_to_name", PEVENT_FUNC_ARG_INT, PEVENT_FUNC_ARG_VOID); pevent_register_print_function(pevent, process_jiffies_to_msecs, PEVENT_FUNC_ARG_LONG, "jiffies_to_msecs", PEVENT_FUNC_ARG_LONG, PEVENT_FUNC_ARG_VOID); return 0; } void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent) { pevent_unregister_print_function(pevent, process_jbd2_dev_to_name, "jbd2_dev_to_name"); pevent_unregister_print_function(pevent, process_jiffies_to_msecs, "jiffies_to_msecs"); } c/sirf/sirf-usp.c'>
path: root/sound/soc/sirf/sirf-usp.c
diff options
context:
space:
mode:
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 /sound/soc/sirf/sirf-usp.c
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 'sound/soc/sirf/sirf-usp.c')
Fixes: 412a15c0fe53 ("svcrdma: Port to new memory registration API") Cc: stable@vger.kernel.org Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Reviewed-by: Chuck Lever <chuck.lever@oracle.com> Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'tools/perf/pmu-events/arch/x86/westmereex')