Re: [PATCH v4 00/14] Add support for suppressing warning backtraces

Kees Cook <[email protected]>
Newsgroups gmane.linux.ports.ppc64.devel,gmane.comp.video.dri.devel,gmane.linux.kernel.cross-arch,gmane.linux.ports.arm.kernel,gmane.linux.documentation,gmane.linux.kernel,gmane.linux.ports.parisc,gmane.linux.ports.riscv,gmane.linux.ports.sh.devel
Message-ID <202503131016.5DCEAEC945@keescook>
On Thu, Mar 13, 2025 at 11:43:15AM +0000, Alessandro Carminati wrote:
> Some unit tests intentionally trigger warning backtraces by passing bad
> parameters to kernel API functions. Such unit tests typically check the
> return value from such calls, not the existence of the warning backtrace.

Thanks for picking this series back up! I honestly thought this had
already landed. :)

> With CONFIG_KUNIT enabled, image size increase with this series applied is
> approximately 1%. The image size increase (and with it the functionality
> introduced by this series) can be avoided by disabling
> CONFIG_KUNIT_SUPPRESS_BACKTRACE.

Yeah, as with my prior review, I'm a fan of this. It makes a bunch of my
very noisy tests much easier to deal with.

-Kees

-- 
Kees Cook
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