Re: [PATCH 6.12 00/89] 6.12.50-rc1 review

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Tue, Sep 30, 2025 at 12:18:08PM -0700, Guenter Roeck wrote:
> On 9/30/25 07:47, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 6.12.50 release.
> > There are 89 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> > 
> > Responses should be made by Thu, 02 Oct 2025 14:37:59 +0000.
> > Anything received after that time might be too late.
> > 
> 
> s390:allmodconfig:
> parisc:allmodconfig:
> 
> drivers/gpu/drm/i915/display/intel_backlight.c: In function 'scale':
> ././include/linux/compiler_types.h:536:45: error:
> 	call to '__compiletime_assert_666' declared with attribute error: clamp() low limit source_min greater than high limit source_max
> include/linux/compiler_types.h:517:25: note: in definition of macro '__compiletime_assert'
>   517 |                         prefix ## suffix();                             \
>       |                         ^~~~~~
> include/linux/compiler_types.h:536:9: note: in expansion of macro '_compiletime_assert'
>   536 |         _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
>       |         ^~~~~~~~~~~~~~~~~~~
> include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert'
>    39 | #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
>       |                                     ^~~~~~~~~~~~~~~~~~
> include/linux/minmax.h:188:9: note: in expansion of macro 'BUILD_BUG_ON_MSG'
>   188 |         BUILD_BUG_ON_MSG(statically_true(ulo > uhi),                            \
>       |         ^~~~~~~~~~~~~~~~
> include/linux/minmax.h:195:9: note: in expansion of macro '__clamp_once'
>   195 |         __clamp_once(type, val, lo, hi, __UNIQUE_ID(v_), __UNIQUE_ID(l_), __UNIQUE_ID(h_))
>       |         ^~~~~~~~~~~~
> include/linux/minmax.h:206:28: note: in expansion of macro '__careful_clamp'
>   206 | #define clamp(val, lo, hi) __careful_clamp(__auto_type, val, lo, hi)
>       |                            ^~~~~~~~~~~~~~~
> drivers/gpu/drm/i915/display/intel_backlight.c:47:22: note: in expansion of macro 'clamp'
>    47 |         source_val = clamp(source_val, source_min, source_max);
> 
> This is exposed by the minmax patch series, as with 6.12.49.
> 
> Fixed upstream with commit 6f7150741584 ("drm/i915/backlight: Return immediately
> when scale() finds invalid parameters"). This patch also includes an explanation
> of what exactly happens (and thanks again to Linus for the analysis).

Sorry about that, I missed this when you previously reported, my fault.
I'll go queue this up everywhere now.

thanks,

greg k-h