All of lore.kernel.org
 help / color / mirror / Atom feed
From: Ingo Molnar <mingo@kernel.org>
To: Nathan Chancellor <nathan@kernel.org>
Cc: "Shuah Khan" <skhan@linuxfoundation.org>,
	x86@kernel.org, "Rae Moar" <rmoar@google.com>,
	"Sergio González Collado" <sergio.collado@gmail.com>,
	"David Gow" <davidgow@google.com>,
	linux-kernel@vger.kernel.org, llvm@lists.linux.dev
Subject: Re: [PATCH] x86/tools: Drop unlikely definition from insn_decoder_test
Date: Wed, 19 Mar 2025 21:31:39 +0100	[thread overview]
Message-ID: <Z9spq9OccwK7vKj7@gmail.com> (raw)
In-Reply-To: <20250318-x86-decoder-test-fix-unlikely-redef-v1-1-74c84a7bf05b@kernel.org>


* Nathan Chancellor <nathan@kernel.org> wrote:

> After commit c104c16073b7 ("Kunit to check the longest symbol length"),
> there is a warning when building with clang because there is now a
> definition of unlikely from compiler.h in tools/include/linux, which
> conflicts with the one in the instruction decoder selftest.
> 
>   arch/x86/tools/insn_decoder_test.c:15:9: warning: 'unlikely' macro redefined [-Wmacro-redefined]
>      15 | #define unlikely(cond) (cond)
>         |         ^
>   tools/include/linux/compiler.h:128:10: note: previous definition is here
>     128 | # define unlikely(x)            __builtin_expect(!!(x), 0)
>         |          ^
>   1 warning generated.
> 
> Remove the second unlikely definition, as it is no longer necessary,
> clearing up the warning.
> 
> Fixes: c104c16073b7 ("Kunit to check the longest symbol length")
> Signed-off-by: Nathan Chancellor <nathan@kernel.org>
> ---
>  arch/x86/tools/insn_decoder_test.c | 2 --
>  1 file changed, 2 deletions(-)

I suppose this should be merged into the Kunit tree? The c104c16073b7 
commit is in -next currently.

Anyway:

  Acked-by: Ingo Molnar <mingo@kernel.org>

Thanks,

	Ingo

  reply	other threads:[~2025-03-19 20:31 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-18 22:32 [PATCH] x86/tools: Drop unlikely definition from insn_decoder_test Nathan Chancellor
2025-03-19 20:31 ` Ingo Molnar [this message]
2025-03-28 21:06   ` Shuah Khan
2025-03-28 21:56     ` Ingo Molnar
2025-03-28 22:04 ` [tip: x86/urgent] x86/tools: Drop duplicate unlikely() definition in insn_decoder_test.c tip-bot2 for Nathan Chancellor

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=Z9spq9OccwK7vKj7@gmail.com \
    --to=mingo@kernel.org \
    --cc=davidgow@google.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=llvm@lists.linux.dev \
    --cc=nathan@kernel.org \
    --cc=rmoar@google.com \
    --cc=sergio.collado@gmail.com \
    --cc=skhan@linuxfoundation.org \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.