From: Thomas Weißschuh <linux@weissschuh.net>
Date: Wed, 4 Dec 2024 19:37:45 +0000 (+0100)
Subject: kbuild/btf: Propagate CONFIG_WERROR to resolve_btfids
X-Git-Tag: v6.14-rc1~133^2~50
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6e8ba494d87d05cba49224d2068dd313190adbd0;p=thirdparty%2Flinux.git

kbuild/btf: Propagate CONFIG_WERROR to resolve_btfids

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@weissschuh.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/20241204-resolve_btfids-v3-2-e6a279a74cfd@weissschuh.net
---

diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh
index d853ddb3b28c1..56a077d204cfa 100755
--- a/scripts/link-vmlinux.sh
+++ b/scripts/link-vmlinux.sh
@@ -283,7 +283,11 @@ 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