linux-kernel - Re: [tip: objtool/urgent] objtool: Fix false-positive "ignoring unreachables" warning

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Message-ID: <jd2rsmxvbvawlwwaatx323pzh5on3tjt5cxx5m7icf3sgj6vao@kjmjgb252u3x>
Date: Thu, 10 Apr 2025 12:13:47 -0700
From: Josh Poimboeuf <jpoimboe@...nel.org>
To: tip-bot2 for Josh Poimboeuf <tip-bot2@...utronix.de>
Cc: linux-tip-commits@...r.kernel.org, kernel test robot <lkp@...el.com>, 
	Ingo Molnar <mingo@...nel.org>, x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [tip: objtool/urgent] objtool: Fix false-positive "ignoring
 unreachables" warning

On Thu, Apr 10, 2025 at 06:14:43AM +0000, tip-bot2 for Josh Poimboeuf wrote:
> The following commit has been merged into the objtool/urgent branch of tip:
> 
> Commit-ID:     8af6f0fe9c4340ed97f0ba4f3f6cc7bb16558e87
> Gitweb:        https://git.kernel.org/tip/8af6f0fe9c4340ed97f0ba4f3f6cc7bb16558e87
> Author:        Josh Poimboeuf <jpoimboe@...nel.org>
> AuthorDate:    Wed, 09 Apr 2025 15:49:36 -07:00
> Committer:     Ingo Molnar <mingo@...nel.org>
> CommitterDate: Thu, 10 Apr 2025 08:03:05 +02:00
> 
> objtool: Fix false-positive "ignoring unreachables" warning
> 
> There's no need to try to automatically disable unreachable warnings if
> they've already been manually disabled due to CONFIG_KCOV quirks.
> 
> This avoids a spurious warning with a KCOV kernel:
> 
>   fs/smb/client/cifs_unicode.o: warning: objtool: cifsConvertToUTF16.part.0+0xce5: ignoring unreachables due to jump table quirk
> 
> Reported-by: kernel test robot <lkp@...el.com>
> Signed-off-by: Josh Poimboeuf <jpoimboe@...nel.org>
> Signed-off-by: Ingo Molnar <mingo@...nel.org>
> Link: https://lore.kernel.org/r/5eb28eeb6a724b7d945a961cfdcf8d41e6edf3dc.1744238814.git.jpoimboe@kernel.org
> 
> Closes: https://lore.kernel.org/r/202504090910.QkvTAR36-lkp@intel.com/

Superfluous newline there.

Also, this probably could use a fixes tag:

Fixes: eeff7ac61526 ("objtool: Warn when disabling unreachable warnings")

Thanks!

-- 
Josh