linux-kernel - Re: [PATCH v1 1/1] lockdep: Move hlock_equal() to the respective ifdeffery

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Message-ID: <aBTP9AaJ0uyzAjxG@smile.fi.intel.com>
Date: Fri, 2 May 2025 17:00:20 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Cc: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>,
	Will Deacon <will@...nel.org>, Boqun Feng <boqun.feng@...il.com>,
	Waiman Long <longman@...hat.com>,
	Nathan Chancellor <nathan@...nel.org>,
	Nick Desaulniers <nick.desaulniers+lkml@...il.com>,
	Bill Wendling <morbo@...gle.com>,
	Justin Stitt <justinstitt@...gle.com>
Subject: Re: [PATCH v1 1/1] lockdep: Move hlock_equal() to the respective
 ifdeffery

On Tue, Apr 15, 2025 at 11:58:56AM +0300, Andy Shevchenko wrote:
> When hlock_equal() is unused, it prevents kernel builds with clang,
> `make W=1` and CONFIG_WERROR=y, CONFIG_LOCKDEP=y and
> CONFIG_LOCKDEP_SMALL=n:
> 
>   lockdep.c:2005:20: error: unused function 'hlock_equal' [-Werror,-Wunused-function]
> 
> Fix this by moving the function to the respective existing ifdeffery
> for its the only user.
> 
> See also commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
> inline functions for W=1 build").

Any news here, please? The problem still exists in v6.15-rc4.

-- 
With Best Regards,
Andy Shevchenko