Quoting Arnd Bergmann (2021-01-03 13:51:44)
> From: Arnd Bergmann <[email protected]>
>
> Randconfig builds on 32-bit machines show lots of warnings for
> the i915 driver for passing a 32-bit value into __const_hweight64():
>
> drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c:2584:9: error: shift count >=
> width of type [-Werror,-Wshift-count-overflow]
> return hweight64(VDBOX_MASK(&i915->gt));
> ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> include/asm-generic/bitops/const_hweight.h:29:49: note: expanded from macro
> 'hweight64'
> #define hweight64(w) (__builtin_constant_p(w) ? __const_hweight64(w) :
> __arch_hweight64(w))
>
> Change it to hweight_long() to avoid the warning.
>
> Signed-off-by: Arnd Bergmann <[email protected]>
Reviewed-by:: Chris Wilson <[email protected]>
-Chris
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