linux-kernel - Re: [PATCH 0/2] tracing: Fully silence instance of -Wstring-compare

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Message-ID: <20240319222755.GA2005262@dev-arch.thelio-3990X>
Date: Tue, 19 Mar 2024 15:27:55 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: mhiramat@...nel.org, mathieu.desnoyers@...icios.com,
	ndesaulniers@...gle.com, morbo@...gle.com, justinstitt@...gle.com,
	linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
	llvm@...ts.linux.dev, patches@...ts.linux.dev,
	Linux Kernel Functional Testing <lkft@...aro.org>
Subject: Re: [PATCH 0/2] tracing: Fully silence instance of -Wstring-compare

On Tue, Mar 19, 2024 at 06:15:09PM -0400, Steven Rostedt wrote:
> On Tue, 19 Mar 2024 09:07:51 -0700
> Nathan Chancellor <nathan@...nel.org> wrote:
> 
> > Hi all,
> > 
> > This series fully resolves the new instance of -Wstring-compare from
> > within the __assign_str() macro. The first patch resolves a build
> > failure with GCC that would be seen with just the second patch applied.
> > The second patch actually hides the warning.
> > 
> > NOTE: This is based on trace/for-next, which does not contain the
> > minimum LLVM version bump that occurred later in the current merge
> > window, so this uses
> > 
> >   __diag_ignore(clang, 11, ...
> > 
> > instead of
> > 
> >   __diag_ignore(clang, 13, ...
> > 
> > which will be required when this is merged into Linus's tree. If you can
> > base this series on a tree that has the merge commit e5eb28f6d1af ("Merge
> > tag 'mm-nonmm-stable-2024-03-14-09-36' of
> > git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm") in it, then that
> > change can be done at application time, rather than merge time (or I can
> > send a v2). It would be really nice for this to make the merge window so
> > that this warning does not proliferate into other trees that base on
> > -rc1.
> > 
> 
> I'm guessing this isn't needed with the last update.

Correct, this is resolved in Linus's tree and should be in -next
tomorrow. The first patch may be worth sending standalone, I'll think
about sending it later but that can go in via some other tree, not
yours.

Cheers,
Nathan