mbox series

[v2,0/2] Fix a bunch of allmodconfig errors

Message ID 20221125120750.3537134-1-lee@kernel.org
Headers
Series Fix a bunch of allmodconfig errors |

Message

Lee Jones Nov. 25, 2022, 12:07 p.m. UTC 
  Since b339ec9c229aa ("kbuild: Only default to -Werror if COMPILE_TEST") WERROR 
now defaults to COMPILE_TEST meaning that it's enabled for allmodconfig        
builds.  This leads to some interesting failures, each resolved in this set.   
                                                                               
With this set applied, I am able to obtain a successful allmodconfig Arm build.

v1 => v2:
 - Remove superfluous change (these two override it)
 - Mark only DRM_AMD_DC ("the new display engine) as Broken
 - Change logic to only *include* working arches, not *preclude* them

Lee Jones (2):
  drm/amdgpu: Temporarily disable broken Clang builds due to blown
    stack-frame
  Kconfig.debug: Provide a little extra FRAME_WARN leeway when KASAN is
    enabled

 drivers/gpu/drm/amd/display/Kconfig | 7 +++++++
 lib/Kconfig.debug                   | 1 +
 2 files changed, 8 insertions(+)

Comments

Andrew Morton Nov. 26, 2022, 12:13 a.m. UTC | #1 
On Fri, 25 Nov 2022 12:07:48 +0000 Lee Jones <lee@kernel.org> wrote:

> Since b339ec9c229aa ("kbuild: Only default to -Werror if COMPILE_TEST") WERROR 
> now defaults to COMPILE_TEST meaning that it's enabled for allmodconfig        
> builds.  This leads to some interesting failures, each resolved in this set.   

I'm not sure who this patchset is aimed at, so I'll take my usual
approach of grabbing it and seeing who complains.

> With this set applied, I am able to obtain a successful allmodconfig Arm build.

b339ec9c229aa is a year old and I've been doing arm allmodconfig for
ever.  What am I missing here?

A broken arm allmodconfig is pretty irritating - I'm thinking that a
fix should be backported into -stable kernels.  But I'm clearly missing
something here.
Andrew Morton Nov. 26, 2022, 12:17 a.m. UTC | #2 
On Fri, 25 Nov 2022 12:07:48 +0000 Lee Jones <lee@kernel.org> wrote:

> Since b339ec9c229aa ("kbuild: Only default to -Werror if COMPILE_TEST") WERROR 
> now defaults to COMPILE_TEST meaning that it's enabled for allmodconfig        
> builds.  This leads to some interesting failures, each resolved in this set.   

Oh, I get it.  Clang.  I'll tweak the above para to make that clearer.

cc:stable question still applies?  How much trouble will these build
errors be causing people for the next N years?

> With this set applied, I am able to obtain a successful allmodconfig Arm build.
Lee Jones Nov. 28, 2022, 7:47 a.m. UTC | #3 
On Fri, 25 Nov 2022, Andrew Morton wrote:

> On Fri, 25 Nov 2022 12:07:48 +0000 Lee Jones <lee@kernel.org> wrote:
> 
> > Since b339ec9c229aa ("kbuild: Only default to -Werror if COMPILE_TEST") WERROR 
> > now defaults to COMPILE_TEST meaning that it's enabled for allmodconfig        
> > builds.  This leads to some interesting failures, each resolved in this set.   
> 
> I'm not sure who this patchset is aimed at, so I'll take my usual
> approach of grabbing it and seeing who complains.
> 
> > With this set applied, I am able to obtain a successful allmodconfig Arm build.
> 
> b339ec9c229aa is a year old and I've been doing arm allmodconfig for
> ever.  What am I missing here?
> 
> A broken arm allmodconfig is pretty irritating - I'm thinking that a
> fix should be backported into -stable kernels.  But I'm clearly missing
> something here.

I will be taking these through all applicable Stable kernels.