diff options
| author | Guo Ren <guoren@linux.alibaba.com> | 2020-02-02 09:58:42 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-03-12 13:00:16 +0100 |
| commit | 3469dfd86e097bbc9d56c1bd255aad316ba746b1 (patch) | |
| tree | 35d8fc9d7d455c833c0fa2a3a5650371494ada2e /arch/csky | |
| parent | c7ce725c525ad7dfa9d976a60776104cd8c5b4d3 (diff) | |
csky: Fixup ftrace modify panic
[ Upstream commit 359ae00d12589c31cf103894d0f32588d523ca83 ]
During ftrace init, linux will replace all function prologues
(call_mcout) with nops, but it need flush_dcache and
invalidate_icache to make it work. So flush_cache functions
couldn't be nested called by ftrace framework.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/csky')
| -rw-r--r-- | arch/csky/mm/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/csky/mm/Makefile b/arch/csky/mm/Makefile index c94ef6481098..efb7ebab342b 100644 --- a/arch/csky/mm/Makefile +++ b/arch/csky/mm/Makefile @@ -1,8 +1,10 @@ # SPDX-License-Identifier: GPL-2.0-only ifeq ($(CONFIG_CPU_HAS_CACHEV2),y) obj-y += cachev2.o +CFLAGS_REMOVE_cachev2.o = $(CC_FLAGS_FTRACE) else obj-y += cachev1.o +CFLAGS_REMOVE_cachev1.o = $(CC_FLAGS_FTRACE) endif obj-y += dma-mapping.o |