numam-dpdk/devtools/checkpatches.sh
Bruce Richardson 68fc7c39ee config: remove explicit undef of unset values
Rather than explicitly clearing any setting of undefined values in our
rte_config.h file, it's better to instead just add a comment that the
value is not set. Using a comment allows the user to set the value using
CFLAGS or similar mechanism without the config file clearing the value
again.

The text used "<VALUE> is not set" is modelled after the kernel approach
of doing the same thing.

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Morten Brørup <mb@smartsharesystems.com>
Acked-by: Tyler Retzlaff <roretzla@linux.microsoft.com>
Signed-off-by: David Marchand <david.marchand@redhat.com>
2022-06-15 09:06:19 +02:00

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#! /bin/sh
# SPDX-License-Identifier: BSD-3-Clause
# Copyright 2015 6WIND S.A.
# Load config options:
# - DPDK_CHECKPATCH_PATH
# - DPDK_CHECKPATCH_CODESPELL
# - DPDK_CHECKPATCH_LINE_LENGTH
# - DPDK_CHECKPATCH_OPTIONS
. $(dirname $(readlink -f $0))/load-devel-config
VALIDATE_NEW_API=$(dirname $(readlink -f $0))/check-symbol-change.sh
# Enable codespell by default. This can be overwritten from a config file.
# Codespell can also be enabled by setting DPDK_CHECKPATCH_CODESPELL to a valid path
# to a dictionary.txt file if dictionary.txt is not in the default location.
codespell=${DPDK_CHECKPATCH_CODESPELL:-enable}
length=${DPDK_CHECKPATCH_LINE_LENGTH:-100}
# override default Linux options
options="--no-tree"
if [ "$codespell" = "enable" ] ; then
options="$options --codespell"
elif [ -f "$codespell" ] ; then
options="$options --codespell"
options="$options --codespellfile $codespell"
fi
options="$options --max-line-length=$length"
options="$options --show-types"
options="$options --ignore=LINUX_VERSION_CODE,ENOSYS,\
FILE_PATH_CHANGES,MAINTAINERS_STYLE,SPDX_LICENSE_TAG,\
VOLATILE,PREFER_PACKED,PREFER_ALIGNED,PREFER_PRINTF,STRLCPY,\
PREFER_KERNEL_TYPES,PREFER_FALLTHROUGH,BIT_MACRO,CONST_STRUCT,\
SPLIT_STRING,LONG_LINE_STRING,C99_COMMENT_TOLERANCE,\
LINE_SPACING,PARENTHESIS_ALIGNMENT,NETWORKING_BLOCK_COMMENT_STYLE,\
NEW_TYPEDEFS,COMPARISON_TO_NULL"
options="$options $DPDK_CHECKPATCH_OPTIONS"
print_usage () {
cat <<- END_OF_HELP
usage: $(basename $0) [-h] [-q] [-v] [-nX|-r range|patch1 [patch2] ...]
Run Linux kernel checkpatch.pl with DPDK options.
The environment variable DPDK_CHECKPATCH_PATH must be set.
The patches to check can be from stdin, files specified on the command line,
latest git commits limited with -n option, or commits in the git range
specified with -r option (default: "origin/main..").
END_OF_HELP
}
check_forbidden_additions() { # <patch>
res=0
# refrain from new additions of rte_panic() and rte_exit()
# multiple folders and expressions are separated by spaces
awk -v FOLDERS="lib drivers" \
-v EXPRESSIONS="rte_panic\\\( rte_exit\\\(" \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using rte_panic/rte_exit' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# refrain from using compiler attribute without defining a common macro
awk -v FOLDERS="lib drivers app examples" \
-v EXPRESSIONS="__attribute__" \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using compiler attribute directly' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# check %l or %ll format specifier
awk -v FOLDERS='lib drivers app examples' \
-v EXPRESSIONS='%ll*[xud]' \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using %l format, prefer %PRI*64 if type is [u]int64_t' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# forbid variable declaration inside "for" loop
awk -v FOLDERS='.' \
-v EXPRESSIONS='for[[:space:]]*\\((char|u?int|unsigned|s?size_t)' \
-v RET_ON_FAIL=1 \
-v MESSAGE='Declaring a variable inside for()' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# refrain from new additions of 16/32/64 bits rte_atomicNN_xxx()
awk -v FOLDERS="lib drivers app examples" \
-v EXPRESSIONS="rte_atomic[0-9][0-9]_.*\\\(" \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using rte_atomicNN_xxx' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# refrain from new additions of rte_smp_[r/w]mb()
awk -v FOLDERS="lib drivers app examples" \
-v EXPRESSIONS="rte_smp_(r|w)?mb\\\(" \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using rte_smp_[r/w]mb' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# refrain from using compiler __sync_xxx builtins
awk -v FOLDERS="lib drivers app examples" \
-v EXPRESSIONS="__sync_.*\\\(" \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using __sync_xxx builtins' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# refrain from using compiler __atomic_thread_fence()
# It should be avoided on x86 for SMP case.
awk -v FOLDERS="lib drivers app examples" \
-v EXPRESSIONS="__atomic_thread_fence\\\(" \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using __atomic_thread_fence' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# forbid use of __reserved which is a reserved keyword in Windows system headers
awk -v FOLDERS="lib drivers app examples" \
-v EXPRESSIONS='\\<__reserved\\>' \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using __reserved' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# forbid use of experimental build flag except in examples
awk -v FOLDERS='lib drivers app' \
-v EXPRESSIONS='-DALLOW_EXPERIMENTAL_API allow_experimental_apis' \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using experimental build flag for in-tree compilation' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# refrain from using RTE_LOG_REGISTER for drivers and libs
awk -v FOLDERS='lib drivers' \
-v EXPRESSIONS='\\<RTE_LOG_REGISTER\\>' \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using RTE_LOG_REGISTER, prefer RTE_LOG_REGISTER_(DEFAULT|SUFFIX)' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# SVG must be included with wildcard extension to allow conversion
awk -v FOLDERS='doc' \
-v EXPRESSIONS='::[[:space:]]*[^[:space:]]*\\.svg' \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using explicit .svg extension instead of .*' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# links must prefer https over http
awk -v FOLDERS='doc' \
-v EXPRESSIONS='http://.*dpdk.org' \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using non https link to dpdk.org' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
# '// XXX is not set' must be preferred over '#undef XXX'
awk -v FOLDERS='config/rte_config.h' \
-v EXPRESSIONS='#undef' \
-v RET_ON_FAIL=1 \
-v MESSAGE='Using "#undef XXX", prefer "// XXX is not set"' \
-f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
"$1" || res=1
return $res
}
check_experimental_tags() { # <patch>
res=0
cat "$1" |awk '
BEGIN {
current_file = "";
ret = 0;
}
/^+++ b\// {
current_file = $2;
}
/^+.*__rte_experimental/ {
if (current_file ~ ".c$" ) {
print "Please only put __rte_experimental tags in " \
"headers ("current_file")";
ret = 1;
}
if ($1 != "+__rte_experimental" || $2 != "") {
print "__rte_experimental must appear alone on the line" \
" immediately preceding the return type of a function."
ret = 1;
}
}
END {
exit ret;
}' || res=1
return $res
}
check_internal_tags() { # <patch>
res=0
cat "$1" |awk '
BEGIN {
current_file = "";
ret = 0;
}
/^+++ b\// {
current_file = $2;
}
/^+.*__rte_internal/ {
if (current_file ~ ".c$" ) {
print "Please only put __rte_internal tags in " \
"headers ("current_file")";
ret = 1;
}
if ($1 != "+__rte_internal" || $2 != "") {
print "__rte_internal must appear alone on the line" \
" immediately preceding the return type of" \
" a function."
ret = 1;
}
}
END {
exit ret;
}' || res=1
return $res
}
check_release_notes() { # <patch>
rel_notes_prefix=doc/guides/rel_notes/release_
IFS=. read year month release < VERSION
current_rel_notes=${rel_notes_prefix}${year}_${month}.rst
! grep -e '^--- a/'$rel_notes_prefix -e '^+++ b/'$rel_notes_prefix "$1" |
grep -v $current_rel_notes
}
number=0
range='origin/main..'
quiet=false
verbose=false
while getopts hn:qr:v ARG ; do
case $ARG in
n ) number=$OPTARG ;;
q ) quiet=true ;;
r ) range=$OPTARG ;;
v ) verbose=true ;;
h ) print_usage ; exit 0 ;;
? ) print_usage ; exit 1 ;;
esac
done
shift $(($OPTIND - 1))
if [ ! -f "$DPDK_CHECKPATCH_PATH" ] || [ ! -x "$DPDK_CHECKPATCH_PATH" ] ; then
print_usage >&2
echo
echo 'Cannot execute DPDK_CHECKPATCH_PATH' >&2
exit 1
fi
print_headline() { # <title>
printf '\n### %s\n\n' "$1"
headline_printed=true
}
total=0
status=0
check () { # <patch> <commit> <title>
local ret=0
headline_printed=false
total=$(($total + 1))
! $verbose || print_headline "$3"
if [ -n "$1" ] ; then
tmpinput=$1
else
tmpinput=$(mktemp -t dpdk.checkpatches.XXXXXX)
trap "rm -f '$tmpinput'" INT
if [ -n "$2" ] ; then
git format-patch --find-renames \
--no-stat --stdout -1 $commit > "$tmpinput"
else
cat > "$tmpinput"
fi
fi
! $verbose || printf 'Running checkpatch.pl:\n'
report=$($DPDK_CHECKPATCH_PATH $options "$tmpinput" 2>/dev/null)
if [ $? -ne 0 ] ; then
$headline_printed || print_headline "$3"
printf '%s\n' "$report" | sed -n '1,/^total:.*lines checked$/p'
ret=1
fi
! $verbose || printf '\nChecking API additions/removals:\n'
report=$($VALIDATE_NEW_API "$tmpinput")
if [ $? -ne 0 ] ; then
$headline_printed || print_headline "$3"
printf '%s\n' "$report"
ret=1
fi
! $verbose || printf '\nChecking forbidden tokens additions:\n'
report=$(check_forbidden_additions "$tmpinput")
if [ $? -ne 0 ] ; then
$headline_printed || print_headline "$3"
printf '%s\n' "$report"
ret=1
fi
! $verbose || printf '\nChecking __rte_experimental tags:\n'
report=$(check_experimental_tags "$tmpinput")
if [ $? -ne 0 ] ; then
$headline_printed || print_headline "$3"
printf '%s\n' "$report"
ret=1
fi
! $verbose || printf '\nChecking __rte_internal tags:\n'
report=$(check_internal_tags "$tmpinput")
if [ $? -ne 0 ] ; then
$headline_printed || print_headline "$3"
printf '%s\n' "$report"
ret=1
fi
! $verbose || printf '\nChecking release notes updates:\n'
report=$(check_release_notes "$tmpinput")
if [ $? -ne 0 ] ; then
$headline_printed || print_headline "$3"
printf '%s\n' "$report"
ret=1
fi
if [ "$tmpinput" != "$1" ]; then
rm -f "$tmpinput"
trap - INT
fi
[ $ret -eq 0 ] && return 0
status=$(($status + 1))
}
if [ -n "$1" ] ; then
for patch in "$@" ; do
# Subject can be on 2 lines
subject=$(sed '/^Subject: */!d;s///;N;s,\n[[:space:]]\+, ,;s,\n.*,,;q' "$patch")
check "$patch" '' "$subject"
done
elif [ ! -t 0 ] ; then # stdin
subject=$(while read header value ; do
if [ "$header" = 'Subject:' ] ; then
IFS= read next
continuation=$(echo "$next" | sed -n 's,^[[:space:]]\+, ,p')
echo $value$continuation
break
fi
done)
check '' '' "$subject"
else
if [ $number -eq 0 ] ; then
commits=$(git rev-list --reverse $range)
else
commits=$(git rev-list --reverse --max-count=$number HEAD)
fi
for commit in $commits ; do
subject=$(git log --format='%s' -1 $commit)
check '' $commit "$subject"
done
fi
pass=$(($total - $status))
$quiet || printf '\n%d/%d valid patch' $pass $total
$quiet || [ $pass -le 1 ] || printf 'es'
$quiet || printf '\n'
exit $status