From: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Date: Thu, 21 Aug 2025 07:56:46 +0000 (+0200)
Subject: arm64: vdso32: Respect -Werror from kbuild
X-Git-Tag: v6.18-rc1~210^2~1^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=281817dffe2855fc0dc07c205b03df630dc6ba38;p=thirdparty%2Flinux.git

arm64: vdso32: Respect -Werror from kbuild

The compiler flags for the compat vDSO are built manually as they are not
compatible with the ones from kbuild. CONFIG_WERROR is not respected.

Explicitly inherit -Werror from kbuild.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Will Deacon <will@kernel.org>
---

diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile
index fd80123bc8e62..5de4deaf42992 100644
--- a/arch/arm64/kernel/vdso32/Makefile
+++ b/arch/arm64/kernel/vdso32/Makefile
@@ -61,6 +61,7 @@ VDSO_CFLAGS += -DENABLE_COMPAT_VDSO=1
 # KBUILD_CFLAGS from top-level Makefile
 VDSO_CFLAGS += -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
                -fno-strict-aliasing -fno-common \
+               $(filter -Werror,$(KBUILD_CPPFLAGS)) \
                -Werror-implicit-function-declaration \
                -Wno-format-security \
                -std=gnu11