Re: [PATCH] doc: use KCFLAGS instead of EXTRA_CFLAGS to pass flags from command line

2021-02-22 Thread Jonathan Corbet
Masahiro Yamada  writes:

> You should use KCFLAGS to pass additional compiler flags from the
> command line. Using EXTRA_CFLAGS is wrong.
>
> EXTRA_CFLAGS is supposed to specify flags applied only to the current
> Makefile (and now deprecated in favor of ccflags-y).
>
> It is still used in arch/mips/kvm/Makefile (and possibly in external
> modules too). Passing EXTRA_CFLAGS from the command line overwrites
> it and breaks the build.
>
> I also fixed drivers/gpu/drm/tilcdc/Makefile because commit 816175dd1fd7
> ("drivers/gpu/drm/tilcdc: Makefile, only -Werror when no -W* in
> EXTRA_CFLAGS") was based on the same misunderstanding.
>
> Signed-off-by: Masahiro Yamada 
> ---
>
>  Documentation/process/4.Coding.rst| 2 +-
>  Documentation/process/submit-checklist.rst| 2 +-
>  Documentation/translations/it_IT/process/4.Coding.rst | 2 +-
>  Documentation/translations/it_IT/process/submit-checklist.rst | 2 +-
>  Documentation/translations/zh_CN/process/4.Coding.rst | 2 +-
>  drivers/gpu/drm/tilcdc/Makefile   | 2 +-
>  6 files changed, 6 insertions(+), 6 deletions(-)

I've applied this, fixing the conflict with submit-checklist.rst in the
process.

Thanks,

jon


Re: [PATCH] doc: use KCFLAGS instead of EXTRA_CFLAGS to pass flags from command line

2021-02-22 Thread Federico Vaga

On 2021-02-21 16:25, Masahiro Yamada wrote:

You should use KCFLAGS to pass additional compiler flags from the
command line. Using EXTRA_CFLAGS is wrong.

EXTRA_CFLAGS is supposed to specify flags applied only to the current
Makefile (and now deprecated in favor of ccflags-y).

It is still used in arch/mips/kvm/Makefile (and possibly in external
modules too). Passing EXTRA_CFLAGS from the command line overwrites
it and breaks the build.

I also fixed drivers/gpu/drm/tilcdc/Makefile because commit 
816175dd1fd7

("drivers/gpu/drm/tilcdc: Makefile, only -Werror when no -W* in
EXTRA_CFLAGS") was based on the same misunderstanding.

Signed-off-by: Masahiro Yamada 
---

 Documentation/process/4.Coding.rst| 2 +-
 Documentation/process/submit-checklist.rst| 2 +-
 Documentation/translations/it_IT/process/4.Coding.rst | 2 +-
 Documentation/translations/it_IT/process/submit-checklist.rst | 2 +-
 Documentation/translations/zh_CN/process/4.Coding.rst | 2 +-
 drivers/gpu/drm/tilcdc/Makefile   | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)


Acked-by: Federico Vaga 

--
Federico Vaga
http://www.federicovaga.it/


Re: [PATCH] doc: use KCFLAGS instead of EXTRA_CFLAGS to pass flags from command line

2021-02-21 Thread Alex Shi
Reviewed-by: Alex Shi 


在 2021/2/21 下午11:25, Masahiro Yamada 写道:
> You should use KCFLAGS to pass additional compiler flags from the
> command line. Using EXTRA_CFLAGS is wrong.
> 
> EXTRA_CFLAGS is supposed to specify flags applied only to the current
> Makefile (and now deprecated in favor of ccflags-y).
> 
> It is still used in arch/mips/kvm/Makefile (and possibly in external
> modules too). Passing EXTRA_CFLAGS from the command line overwrites
> it and breaks the build.
> 
> I also fixed drivers/gpu/drm/tilcdc/Makefile because commit 816175dd1fd7
> ("drivers/gpu/drm/tilcdc: Makefile, only -Werror when no -W* in
> EXTRA_CFLAGS") was based on the same misunderstanding.
> 
> Signed-off-by: Masahiro Yamada 
> ---
> 
>  Documentation/process/4.Coding.rst| 2 +-
>  Documentation/process/submit-checklist.rst| 2 +-
>  Documentation/translations/it_IT/process/4.Coding.rst | 2 +-
>  Documentation/translations/it_IT/process/submit-checklist.rst | 2 +-
>  Documentation/translations/zh_CN/process/4.Coding.rst | 2 +-
>  drivers/gpu/drm/tilcdc/Makefile   | 2 +-
>  6 files changed, 6 insertions(+), 6 deletions(-)
>