linux-kernel - Re: [PATCH] btrfs: handle -Wmaybe-uninitialized with clang

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Message-ID: <20230102120505.GA11562@suse.cz>
Date:   Mon, 2 Jan 2023 13:05:05 +0100
From:   David Sterba <dsterba@...e.cz>
To:     Tom Rix <trix@...hat.com>
Cc:     clm@...com, josef@...icpanda.com, dsterba@...e.com,
        nathan@...nel.org, ndesaulniers@...gle.com, wqu@...e.com,
        linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [PATCH] btrfs: handle -Wmaybe-uninitialized with clang

On Fri, Dec 30, 2022 at 12:55:07PM -0500, Tom Rix wrote:
> The clang build reports this error
> error: unknown warning option '-Wmaybe-uninitialized'; did you mean '-Wuninitialized'? [-Werror,-Wunknown-warning-option]
> make[3]: *** [scripts/Makefile.build:252: fs/btrfs/super.o] Error 1
> 
> -Wmaybe-uninitialized is a gcc only flag.  Move to setting with cc-option.
> 
> Fixes: 1b19c4c249a1 ("btrfs: turn on -Wmaybe-uninitialized")
> Signed-off-by: Tom Rix <trix@...hat.com>

Folded to the patch, thanks.