[PATCH bpf-next v3 2/2] kbuild: propagate CONFIG_WERROR to resolve_btfids

[Thomas Weißschuh]

Use CONFIG_WERROR to also fail on warnings emitted by resolve_btfids.
Allow the CI bots to prevent the introduction of new warnings.

Signed-off-by: Thomas Weißschuh <linux@xxxxxxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
---
 scripts/link-vmlinux.sh | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index a3c634b2f348f9c976cff9693caf290db7f31666..991d08c0042c68fc452210a8423d67162891c585 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -279,7 +279,11 @@ vmlinux_link vmlinux
 # fill in BTF IDs
 if is_enabled CONFIG_DEBUG_INFO_BTF; then
 	info BTFIDS vmlinux
-	${RESOLVE_BTFIDS} vmlinux
+	RESOLVE_BTFIDS_ARGS=""
+	if is_enabled CONFIG_WERROR; then
+		RESOLVE_BTFIDS_ARGS=" --fatal_warnings "
+	fi
+	${RESOLVE_BTFIDS} ${RESOLVE_BTFIDS_ARGS} vmlinux
 fi
 
 mksysmap vmlinux System.map

-- 
2.47.1