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kbuild: detect missing "WITH Linux-syscall-note" for uapi headers

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UAPI headers licensed under GPL are supposed to have exception
"WITH Linux-syscall-note" so that they can be included into non-GPL
user space application code.

Unfortunately, people often miss to add it. Break 'make headers'
when any of exported headers lacks the exception note so that the
0-day bot can easily catch it.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2019-07-25 17:05:13 +09:00
parent 609488bc97
commit 622445541b
1 changed files with 6 additions and 0 deletions
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6
scripts/headers_install.sh
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@ -23,6 +23,12 @@ TMPFILE=$OUTFILE.tmp
trap 'rm -f $OUTFILE $TMPFILE' EXIT
# SPDX-License-Identifier with GPL variants must have "WITH Linux-syscall-note"
if [ -n "$(sed -n -e "/SPDX-License-Identifier:.*GPL-/{/WITH Linux-syscall-note/!p}" $INFILE)" ]; then
echo "error: $INFILE: missing \"WITH Linux-syscall-note\" for SPDX-License-Identifier" >&2
exit 1
fi
sed -E -e '
s/([[:space:](])(__user|__force|__iomem)[[:space:]]/\1/g
s/__attribute_const__([[:space:]]|$)/\1/g