linux-kernel - [PATCH 1/2] kernel: kcsan: kcsan_test: build without structleak plugin

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Date:   Mon, 28 Nov 2022 11:43:58 +0100
From:   Anders Roxell <anders.roxell@...aro.org>
To:     elver@...gle.com
Cc:     kasan-dev@...glegroups.com, linux-kernel@...r.kernel.org,
        akpm@...ux-foundation.org, keescook@...omium.org,
        davidgow@...gle.com, Jason@...c4.com,
        Anders Roxell <anders.roxell@...aro.org>,
        Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 1/2] kernel: kcsan: kcsan_test: build without structleak plugin

Building kcsan_test with strucleak plugin enabled makes the stack frame
size to grow.

kernel/kcsan/kcsan_test.c:704:1: error: the frame size of 3296 bytes is larger than 2048 bytes [-Werror=frame-larger-than=]

Turn off the structleak plugin checks for kcsan_test.

Suggested-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Anders Roxell <anders.roxell@...aro.org>
---
 kernel/kcsan/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/kcsan/Makefile b/kernel/kcsan/Makefile
index 4f35d1bced6a..8cf70f068d92 100644
--- a/kernel/kcsan/Makefile
+++ b/kernel/kcsan/Makefile
@@ -17,4 +17,5 @@ KCSAN_INSTRUMENT_BARRIERS_selftest.o := y
 obj-$(CONFIG_KCSAN_SELFTEST) += selftest.o
 
 CFLAGS_kcsan_test.o := $(CFLAGS_KCSAN) -g -fno-omit-frame-pointer
+CFLAGS_kcsan_test.o += $(DISABLE_STRUCTLEAK_PLUGIN)
 obj-$(CONFIG_KCSAN_KUNIT_TEST) += kcsan_test.o
-- 
2.35.1