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| author | Rosen Penev <rosenp@gmail.com> | 2026-09-27 13:35:01 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-10-01 11:04:53 +0200 |
| commit | 8167c1f071426706c233e93ecfd13aba7d5c06c8 (patch) | |
| tree | 2c0cd5f5e1cc35eadee98d49fe034f96a88856ce /scripts/syscallhdr.sh | |
| download | linux-stable-8167c1f071426706c233e93ecfd13aba7d5c06c8.tar.gz linux-stable-8167c1f071426706c233e93ecfd13aba7d5c06c8.zip | |
tty: serial: mpc52xx_uart: move static declarations up.grafted
Avoid a compilation error so that they're not used before being
declared.
Fixes: 4d105880666a ("tty: serial: mpc52xx_uart: add bounds check for psc_num array index")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202609260356.tJWbd1WU-lkp@intel.com/
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Link: https://patch.msgid.link/20260927203501.14105-1-rosenp@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/syscallhdr.sh')
| -rwxr-xr-x | scripts/syscallhdr.sh | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/scripts/syscallhdr.sh b/scripts/syscallhdr.sh new file mode 100755 index 000000000..22e34cd46 --- /dev/null +++ b/scripts/syscallhdr.sh @@ -0,0 +1,98 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0-only +# +# Generate a syscall number header. +# +# Each line of the syscall table should have the following format: +# +# NR ABI NAME [NATIVE] [COMPAT] +# +# NR syscall number +# ABI ABI name +# NAME syscall name +# NATIVE native entry point (optional) +# COMPAT compat entry point (optional) + +set -e + +usage() { + echo >&2 "usage: $0 [--abis ABIS] [--emit-nr] [--offset OFFSET] [--prefix PREFIX] INFILE OUTFILE" >&2 + echo >&2 + echo >&2 " INFILE input syscall table" + echo >&2 " OUTFILE output header file" + echo >&2 + echo >&2 "options:" + echo >&2 " --abis ABIS ABI(s) to handle (By default, all lines are handled)" + echo >&2 " --emit-nr Emit the macro of the number of syscalls (__NR_syscalls)" + echo >&2 " --offset OFFSET The offset of syscall numbers" + echo >&2 " --prefix PREFIX The prefix to the macro like __NR_<PREFIX><NAME>" + exit 1 +} + +# default unless specified by options +abis= +emit_nr= +offset= +prefix= + +while [ $# -gt 0 ] +do + case $1 in + --abis) + abis=$(echo "($2)" | tr ',' '|') + shift 2;; + --emit-nr) + emit_nr=1 + shift 1;; + --offset) + offset=$2 + shift 2;; + --prefix) + prefix=$2 + shift 2;; + -*) + echo "$1: unknown option" >&2 + usage;; + *) + break;; + esac +done + +if [ $# -ne 2 ]; then + usage +fi + +infile="$1" +outfile="$2" + +guard=_UAPI_ASM_$(basename "$outfile" | + sed -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' \ + -e 's/[^A-Z0-9_]/_/g' -e 's/__/_/g') + +grep -E "^[0-9A-Fa-fXx]+[[:space:]]+$abis" "$infile" | { + echo "#ifndef $guard" + echo "#define $guard" + echo + + max=0 + while read nr abi name native compat ; do + + max=$nr + + if [ -n "$offset" ]; then + nr="($offset + $nr)" + fi + + echo "#define __NR_$prefix$name $nr" + done + + if [ -n "$emit_nr" ]; then + echo + echo "#ifdef __KERNEL__" + echo "#define __NR_${prefix}syscalls $(($max + 1))" + echo "#endif" + fi + + echo + echo "#endif /* $guard */" +} > "$outfile" |
