[PATCH] Enable '-Werror' by default for all kernel builds
Christoph Hellwig
hch at infradead.org
Wed Sep 8 22:58:13 PDT 2021
On Wed, Sep 08, 2021 at 11:58:56PM +0200, Marco Elver wrote:
> It'd be good to avoid. It has helped uncover build issues with KASAN in
> the past. Or at least make it dependent on the problematic architecture.
> For example if arm is a problem, something like this:
I'm also seeing quite a few stack size warnings with KASAN on x86_64
without COMPILT_TEST using gcc 10.2.1 from Debian. In fact there are a
few warnings without KASAN, but with KASAN there are a lot more.
I'll try to find some time to dig into them.
While we're at it, with -Werror something like this is really futile:
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c: In function âamdgpu_bo_support_uswcâ:
drivers/gpu/drm/amd/amdgpu/amdgpu_object.c:493:2: warning: #warning
Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance thanks to write-combining [-Wcpp
493 | #warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \
| ^~~~~~~
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