Re: [REGRESSION] linux-pci/next: (build) ignoring return value of function declared with 'warn_unused_resul...

Re: [REGRESSION] linux-pci/next: (build) ignoring return value of function declared with 'warn_unused_resul...

[Bjorn Helgaas]

On Fri, Mar 27, 2026 at 05:59:03PM -0000, KernelCI bot wrote:
> 
> 
> 
> 
> Hello,
> 
> New build issue found on linux-pci/next:
> 
> ---
>  ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result] in drivers/gpu/drm/i915/display/intel_vga.o (drivers/gpu/drm/i915/display/intel_vga.c) [logspec:kbuild,kbuild.compiler.error]
> ---
> 
> - dashboard: https://d.kernelci.org/i/maestro:c2145292d80ae85fd003068675e73a3d1f95c35e
> - giturl: https://git.kernel.org/pub/scm/linux/kernel/git/pci/pci.git
> - commit HEAD:  50451816531d66141cafe2347f9a896bd4dcb2b3

Dropped the commits related to this, see
https://lore.kernel.org/all/20260330161802.GA79047@bhelgaas

> Please include the KernelCI tag when submitting a fix:
> 
> Reported-by: kernelci.org bot <bot@kernelci.org>
> 
> 
> Log excerpt:
> =====================================================
> /tmp/kci/linux/drivers/gpu/drm/i915/display/intel_vga.c:68:2: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
>    68 |         vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
>       |         ^~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~
> /tmp/kci/linux/drivers/gpu/drm/i915/display/intel_vga.c:93:2: error: ignoring return value of function declared with 'warn_unused_result' attribute [-Werror,-Wunused-result]
>    93 |         vga_get_uninterruptible(pdev, VGA_RSRC_LEGACY_IO);
>       |         ^~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~
> 2 errors generated.
> 
> =====================================================
> 
> 
> # Builds where the incident occurred:
> 
> ## x86_64_defconfig on (x86_64):
> - compiler: clang-21
> - config: None
> - dashboard: https://d.kernelci.org/build/maestro:69c6b8d23712df3240c2a959
> 
> 
> #kernelci issue maestro:c2145292d80ae85fd003068675e73a3d1f95c35e
> 
> --
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