Thread (3 messages) flat view 3 messages, 1 author, 2017-03-01
STALE3476d

[MDADM PATCH 1/2] Add Wimplicit-fallthrough=0 in Makefile

From: Xiao Ni <hidden>
Date: 2017-03-01 06:12:45
Subsystem: kernel build + files below scripts/ (unless maintained elsewhere), the rest · Maintainers: Nathan Chancellor, Nicolas Schier, Linus Torvalds

There are many errors like 'error: this statement may fall through'. 
But the logic is right. So add the flag Wimplicit-fallthrough=0 
to disable the error messages. The method I use is from 
https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
#index-Wimplicit-fallthrough-375
---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/Makefile b/Makefile
index a6f464c..b9f52e0 100644
--- a/Makefile
+++ b/Makefile
@@ -43,7 +43,7 @@ KLIBC_GCC = gcc -nostdinc -iwithprefix include -I$(KLIBC)/klibc/include -I$(KLIB
 
 CC ?= $(CROSS_COMPILE)gcc
 CXFLAGS ?= -ggdb
-CWFLAGS = -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter
+CWFLAGS = -Wall -Werror -Wstrict-prototypes -Wextra -Wno-unused-parameter -Wimplicit-fallthrough=0
 ifdef WARN_UNUSED
 CWFLAGS += -Wp,-D_FORTIFY_SOURCE=2 -O3
 endif
-- 
2.7.4
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