The patch titled
Subject: kernel: kcsan: kcsan_test: build without structleak plugin
has been added to the -mm mm-nonmm-unstable branch. Its filename is
kernel-kcsan-kcsan_test-build-without-structleak-plugin.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kernel-kcsan-kcsan_test-build-without-structleak-plugin.patch
This patch will later appear in the mm-nonmm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Anders Roxell <anders.roxell@xxxxxxxxxx>
Subject: kernel: kcsan: kcsan_test: build without structleak plugin
Date: Mon, 28 Nov 2022 11:43:58 +0100
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.
Link: https://lkml.kernel.org/r/20221128104358.2660634-1-anders.roxell@xxxxxxxxxx
Signed-off-by: Anders Roxell <anders.roxell@xxxxxxxxxx>
Suggested-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Marco Elver <elver@xxxxxxxxxx>
Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: David Gow <davidgow@xxxxxxxxxx>
Cc: Jason A. Donenfeld <Jason@xxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/kcsan/Makefile | 1 +
1 file changed, 1 insertion(+)
--- a/kernel/kcsan/Makefile~kernel-kcsan-kcsan_test-build-without-structleak-plugin
+++ a/kernel/kcsan/Makefile
@@ -17,4 +17,5 @@ KCSAN_INSTRUMENT_BARRIERS_selftest.o :=
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
_
Patches currently in -mm which might be from anders.roxell@xxxxxxxxxx are
kernel-kcsan-kcsan_test-build-without-structleak-plugin.patch
