diff mbox series

[v2] kbuild: add -Wno-unused-but-set-variable flag unconditionally

Message ID 1538443943-29805-1-git-send-email-yamada.masahiro@socionext.com
State Accepted
Commit 9df3e7a7d7d6d92df7c58fb17f900fdc2d8b5031
Headers show
Series [v2] kbuild: add -Wno-unused-but-set-variable flag unconditionally | expand

Commit Message

Masahiro Yamada Oct. 2, 2018, 1:32 a.m. UTC
We have raised the compiler requirement from time to time.
With commit cafa0010cd51 ("Raise the minimum required gcc version
to 4.6"), the minimum for GCC is 4.6 now.

This flag was added by GCC 4.6, and it is recognized by ICC as well.

It is true that Clang does not support this flag but this commit is
just touching the else part of the "ifeq ($(cc-name),clang)" check.
Hence, Clang build is not affected.

Let's rip off the cc-disable-warning switch, and see if somebody
complains about it.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

---

Changes in v2:
  - Fix commit log

 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.7.4

Comments

Nick Desaulniers Oct. 2, 2018, 9:10 p.m. UTC | #1
On Mon, Oct 1, 2018 at 6:33 PM Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
>

> We have raised the compiler requirement from time to time.

> With commit cafa0010cd51 ("Raise the minimum required gcc version

> to 4.6"), the minimum for GCC is 4.6 now.

>

> This flag was added by GCC 4.6, and it is recognized by ICC as well.

>

> It is true that Clang does not support this flag but this commit is

> just touching the else part of the "ifeq ($(cc-name),clang)" check.

> Hence, Clang build is not affected.

>

> Let's rip off the cc-disable-warning switch, and see if somebody

> complains about it.

>

> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

> ---

>

> Changes in v2:

>   - Fix commit log


Mashiro, thank you for this fix.
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>


>

>  Makefile | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

>

> diff --git a/Makefile b/Makefile

> index 8a23fee..2627266 100644

> --- a/Makefile

> +++ b/Makefile

> @@ -716,7 +716,7 @@ else

>

>  # These warnings generated too much noise in a regular build.

>  # Use make W=1 to enable them (see scripts/Makefile.extrawarn)

> -KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)

> +KBUILD_CFLAGS += -Wno-unused-but-set-variable

>  endif

>

>  KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)

> --

> 2.7.4

>



-- 
Thanks,
~Nick Desaulniers
Masahiro Yamada Oct. 9, 2018, 2:58 p.m. UTC | #2
On Tue, Oct 2, 2018 at 10:33 AM Masahiro Yamada
<yamada.masahiro@socionext.com> wrote:
>

> We have raised the compiler requirement from time to time.

> With commit cafa0010cd51 ("Raise the minimum required gcc version

> to 4.6"), the minimum for GCC is 4.6 now.

>

> This flag was added by GCC 4.6, and it is recognized by ICC as well.

>

> It is true that Clang does not support this flag but this commit is

> just touching the else part of the "ifeq ($(cc-name),clang)" check.

> Hence, Clang build is not affected.

>

> Let's rip off the cc-disable-warning switch, and see if somebody

> complains about it.

>

> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

> ---



Applied to linux-kbuild.

>

> Changes in v2:

>   - Fix commit log

>

>  Makefile | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

>

> diff --git a/Makefile b/Makefile

> index 8a23fee..2627266 100644

> --- a/Makefile

> +++ b/Makefile

> @@ -716,7 +716,7 @@ else

>

>  # These warnings generated too much noise in a regular build.

>  # Use make W=1 to enable them (see scripts/Makefile.extrawarn)

> -KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)

> +KBUILD_CFLAGS += -Wno-unused-but-set-variable

>  endif

>

>  KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)

> --

> 2.7.4

>



-- 
Best Regards
Masahiro Yamada
diff mbox series

Patch

diff --git a/Makefile b/Makefile
index 8a23fee..2627266 100644
--- a/Makefile
+++ b/Makefile
@@ -716,7 +716,7 @@  else
 
 # These warnings generated too much noise in a regular build.
 # Use make W=1 to enable them (see scripts/Makefile.extrawarn)
-KBUILD_CFLAGS += $(call cc-disable-warning, unused-but-set-variable)
+KBUILD_CFLAGS += -Wno-unused-but-set-variable
 endif
 
 KBUILD_CFLAGS += $(call cc-disable-warning, unused-const-variable)