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authorRob Herring (Arm) <robh@kernel.org>2026-08-31 14:43:51 -0500
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2026-09-13 18:17:31 -0700
commit55fc280e951ab2b39f3dcb640edc1b1eebc6d173 (patch)
treef0b5f37b42fc13b9908a31b657c646b024231cdd /scripts/gfp-translate
downloadlinux-stable-55fc280e951ab2b39f3dcb640edc1b1eebc6d173.tar.gz
linux-stable-55fc280e951ab2b39f3dcb640edc1b1eebc6d173.zip
Input: tsc2007 - read "ti,poll-period" as u32grafted
The "ti,poll-period" property is documented as a normal uint32 cell. The driver used a u64 helper, which makes the helper type disagree with the schema even though the stored value is still small. Read "ti,poll-period" with the u32 helper matching the documented DT cell size. Assisted-by: Codex:gpt-5-5 Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20260831194352.1185860-1-robh@kernel.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'scripts/gfp-translate')
-rwxr-xr-xscripts/gfp-translate118
1 files changed, 118 insertions, 0 deletions
diff --git a/scripts/gfp-translate b/scripts/gfp-translate
new file mode 100755
index 000000000..8385ae0d5
--- /dev/null
+++ b/scripts/gfp-translate
@@ -0,0 +1,118 @@
+#!/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.c` || exit 1
+
+echo Source: $SOURCE
+echo Parsing: $GFPMASK
+
+(
+ cat <<EOF
+#include <stdint.h>
+#include <stdio.h>
+
+// Try to fool compiler.h into not including extra stuff
+#define __ASSEMBLY__ 1
+
+#include <generated/autoconf.h>
+#include <linux/gfp_types.h>
+
+static const char *masks[] = {
+EOF
+
+ sed -nEe 's/^[[:space:]]+(___GFP_.*)_BIT,.*$/\1/p' $SOURCE/include/linux/gfp_types.h |
+ while read b; do
+ cat <<EOF
+#if defined($b) && ($b > 0)
+ [${b}_BIT] = "$b",
+#endif
+EOF
+ done
+
+ cat <<EOF
+};
+
+int main(int argc, char *argv[])
+{
+ unsigned long long mask = $GFPMASK;
+
+ for (int i = 0; i < sizeof(mask) * 8; i++) {
+ unsigned long long bit = 1ULL << i;
+ if (mask & bit)
+ printf("\t%-25s0x%llx\n",
+ (i < ___GFP_LAST_BIT && masks[i]) ?
+ masks[i] : "*** INVALID ***",
+ bit);
+ }
+
+ return 0;
+}
+EOF
+) > $TMPFILE
+
+${CC:-gcc} -Wall -o ${TMPFILE}.bin -I $SOURCE/include $TMPFILE && ${TMPFILE}.bin
+
+rm -f $TMPFILE ${TMPFILE}.bin
+
+exit 0