Revision e97eace635a42da4644290179aea496178e64988 authored by Linus Torvalds on 22 October 2022, 00:47:39 UTC, committed by Linus Torvalds on 22 October 2022, 00:47:39 UTC
Pull iommu fixes from Joerg Roedel: "Intel VT-d fixes: - Fix a lockdep splat issue in intel_iommu_init() - Allow NVS regions to pass RMRR check - Domain cleanup in error path" * tag 'iommu-fixes-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu/vt-d: Clean up si_domain in the init_dmars() error path iommu/vt-d: Allow NVS regions in arch_rmrr_sanity_check() iommu/vt-d: Use rcu_lock in get_resv_regions iommu: Add gfp parameter to iommu_alloc_resv_region
gfp-translate
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0-only
# Translate the bits making up a GFP mask
# (c) 2009, Mel Gorman <mel@csn.ul.ie>
SOURCE=
GFPMASK=none
# Helper function to report failures and exit
die() {
echo ERROR: $@
if [ "$TMPFILE" != "" ]; then
rm -f $TMPFILE
fi
exit -1
}
usage() {
echo "usage: gfp-translate [-h] [ --source DIRECTORY ] gfpmask"
exit 0
}
# Parse command-line arguments
while [ $# -gt 0 ]; do
case $1 in
--source)
SOURCE=$2
shift 2
;;
-h)
usage
;;
--help)
usage
;;
*)
GFPMASK=$1
shift
;;
esac
done
# Guess the kernel source directory if it's not set. Preference is in order of
# o current directory
# o /usr/src/linux
if [ "$SOURCE" = "" ]; then
if [ -r "/usr/src/linux/Makefile" ]; then
SOURCE=/usr/src/linux
fi
if [ -r "`pwd`/Makefile" ]; then
SOURCE=`pwd`
fi
fi
# Confirm that a source directory exists
if [ ! -r "$SOURCE/Makefile" ]; then
die "Could not locate kernel source directory or it is invalid"
fi
# Confirm that a GFP mask has been specified
if [ "$GFPMASK" = "none" ]; then
usage
fi
# Extract GFP flags from the kernel source
TMPFILE=`mktemp -t gfptranslate-XXXXXX` || exit 1
grep -q ___GFP $SOURCE/include/linux/gfp.h
if [ $? -eq 0 ]; then
grep "^#define ___GFP" $SOURCE/include/linux/gfp.h | sed -e 's/u$//' | grep -v GFP_BITS > $TMPFILE
else
grep "^#define __GFP" $SOURCE/include/linux/gfp.h | sed -e 's/(__force gfp_t)//' | sed -e 's/u)/)/' | grep -v GFP_BITS | sed -e 's/)\//) \//' > $TMPFILE
fi
# Parse the flags
IFS="
"
echo Source: $SOURCE
echo Parsing: $GFPMASK
for LINE in `cat $TMPFILE`; do
MASK=`echo $LINE | awk '{print $3}'`
if [ $(($GFPMASK&$MASK)) -ne 0 ]; then
echo $LINE
fi
done
rm -f $TMPFILE
exit 0
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