#!/bin/sh TARGET=$1 ARCH=$2 SMP=$3 PREEMPT=$4 CC=$5 vecho() { [ "${quiet}" = "silent_" ] || echo "$@" ; } # If compile.h exists already and we don't own autoconf.h # (i.e. we're not the same user who did make *config), don't # modify compile.h # So "sudo make install" won't change the "compiled by " # do "compiled by root" if [ -r $TARGET -a ! -O include/generated/autoconf.h ]; then vecho " SKIPPED $TARGET" exit 0 fi # Do not expand names set -f # Fix the language to get consistent output LC_ALL=C export LC_ALL if [ -z "$KBUILD_BUILD_VERSION" ]; then if [ -r .version ]; then VERSION=`cat .version` else VERSION=0 echo 0 > .version fi else VERSION=$KBUILD_BUILD_VERSION fi if [ -z "$KBUILD_BUILD_TIMESTAMP" ]; then TIMESTAMP=`date` else TIMESTAMP=$KBUILD_BUILD_TIMESTAMP fi if test -z "$KBUILD_BUILD_USER"; then LINUX_COMPILE_BY=$(whoami | sed 's/\\/\\\\/') else LINUX_COMPILE_BY=$KBUILD_BUILD_USER fi if test -z "$KBUILD_BUILD_HOST"; then LINUX_COMPILE_HOST=`hostname` else LINUX_COMPILE_HOST=$KBUILD_BUILD_HOST fi UTS_VERSION="#$VERSION" CONFIG_FLAGS="" if [ -n "$SMP" ] ; then CONFIG_FLAGS="SMP"; fi if [ -n "$PREEMPT" ] ; then CONFIG_FLAGS="$CONFIG_FLAGS PREEMPT"; fi UTS_VERSION="$UTS_VERSION $CONFIG_FLAGS $TIMESTAMP" # Truncate to maximum length UTS_LEN=64 UTS_TRUNCATE="cut -b -$UTS_LEN" # Generate a temporary compile.h ( echo /\* This file is auto generated, version $VERSION \*/ if [ -n "$CONFIG_FLAGS" ] ; then echo "/* $CONFIG_FLAGS */"; fi echo \#define UTS_MACHINE \"$ARCH\" echo \#define UTS_VERSION \"`echo $UTS_VERSION | $UTS_TRUNCATE`\" echo \#define LINUX_COMPILE_BY \"`echo $LINUX_COMPILE_BY | $UTS_TRUNCATE`\" echo \#define LINUX_COMPILE_HOST \"`echo $LINUX_COMPILE_HOST | $UTS_TRUNCATE`\" echo \#define LINUX_COMPILER \"`$CC -v 2>&1 | grep ' version '`\" ) > .tmpcompile # Only replace the real compile.h if the new one is different, # in order to preserve the timestamp and avoid unnecessary # recompilations. # We don't consider the file changed if only the date/time changed. # A kernel config change will increase the generation number, thus # causing compile.h to be updated (including date/time) due to the # changed comment in the # first line. if [ -r $TARGET ] && \ grep -v 'UTS_VERSION' $TARGET > .tmpver.1 && \ grep -v 'UTS_VERSION' .tmpcompile > .tmpver.2 && \ cmp -s .tmpver.1 .tmpver.2; then rm -f .tmpcompile else vecho " UPD $TARGET" mv -f .tmpcompile $TARGET fi rm -f .tmpver.1 .tmpver.2 range'>range
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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 /sound/aoa/soundbus/Kconfig
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/aoa/soundbus/Kconfig')