* [PATCH] Makefile: 'Promote' -Wunused-but-set-variable to W=3
@ 2021-09-11 14:29 Peter Zijlstra
2021-09-11 21:34 ` Segher Boessenkool
0 siblings, 1 reply; 2+ messages in thread
From: Peter Zijlstra @ 2021-09-11 14:29 UTC (permalink / raw)
To: masahiroy; +Cc: linux-kernel, nathan, ndesaulniers, x86, linux-toolchains
Upgrade -Wunused-but-set-variable to W=3 to avoid the build robots
sending endless spam for this garbage warning.
By promoting it to W=3 the robots will no longer report it and people
will no longer attempt to fix them by making the code worse.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
---
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index d53825503874..6686cc587d3b 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -28,7 +28,6 @@ KBUILD_CFLAGS += -Wmissing-format-attribute
KBUILD_CFLAGS += -Wmissing-prototypes
KBUILD_CFLAGS += -Wold-style-definition
KBUILD_CFLAGS += -Wmissing-include-dirs
-KBUILD_CFLAGS += $(call cc-option, -Wunused-but-set-variable)
KBUILD_CFLAGS += $(call cc-option, -Wunused-const-variable)
KBUILD_CFLAGS += $(call cc-option, -Wpacked-not-aligned)
KBUILD_CFLAGS += $(call cc-option, -Wstringop-truncation)
@@ -88,6 +87,7 @@ KBUILD_CFLAGS += -Wredundant-decls
KBUILD_CFLAGS += -Wsign-compare
KBUILD_CFLAGS += -Wswitch-default
KBUILD_CFLAGS += $(call cc-option, -Wpacked-bitfield-compat)
+KBUILD_CFLAGS += $(call cc-option, -Wunused-but-set-variable)
KBUILD_CPPFLAGS += -DKBUILD_EXTRA_WARN3
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] Makefile: 'Promote' -Wunused-but-set-variable to W=3
2021-09-11 14:29 [PATCH] Makefile: 'Promote' -Wunused-but-set-variable to W=3 Peter Zijlstra
@ 2021-09-11 21:34 ` Segher Boessenkool
0 siblings, 0 replies; 2+ messages in thread
From: Segher Boessenkool @ 2021-09-11 21:34 UTC (permalink / raw)
To: Peter Zijlstra
Cc: masahiroy, linux-kernel, nathan, ndesaulniers, x86, linux-toolchains
On Sat, Sep 11, 2021 at 04:29:05PM +0200, Peter Zijlstra wrote:
> Upgrade -Wunused-but-set-variable to W=3 to avoid the build robots
> sending endless spam for this garbage warning.
"This warning for garbage code" you mean?
> By promoting it to W=3 the robots will no longer report it and people
> will no longer attempt to fix them by making the code worse.
Instead, they will not see such warnings, and make the code worse.
Segher
^ permalink raw reply [flat|nested] 2+ messages in thread
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