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scripts: headers_install: Exit with error on config leak

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[ Upstream commit 5967577231f9b19acd5a59485e9075964065bbe3 ]

Misuse of CONFIG_* in UAPI headers should result in an error. These config
options can be set in userspace by the user application which includes
these headers to control the APIs and structures being used in a kernel
which supports multiple targets.

Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Siddharth Gupta 2020-05-05 18:52:37 -07:00 committed by Greg Kroah-Hartman
parent c707e18796
commit 4c8a62c939
1 changed files with 6 additions and 5 deletions
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11
scripts/headers_install.sh
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@ -64,7 +64,7 @@ configs=$(sed -e '
d
' $OUTFILE)
# The entries in the following list are not warned.
# The entries in the following list do not result in an error.
# Please do not add a new entry. This list is only for existing ones.
# The list will be reduced gradually, and deleted eventually. (hopefully)
#
@ -98,18 +98,19 @@ include/uapi/linux/raw.h:CONFIG_MAX_RAW_DEVS
for c in $configs
do
warn=1
leak_error=1
for ignore in $config_leak_ignores
do
if echo "$INFILE:$c" | grep -q "$ignore$"; then
warn=
leak_error=
break
fi
done
if [ "$warn" = 1 ]; then
echo "warning: $INFILE: leak $c to user-space" >&2
if [ "$leak_error" = 1 ]; then
echo "error: $INFILE: leak $c to user-space" >&2
exit 1
fi
done