linux-kernel - Re: [PATCH v2] cleanup: Fix "unused function" warnings with conditional guards

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Message-ID: <68cc5ce459c93_2dc0100e4@dwillia2-mobl4.notmuch>
Date: Thu, 18 Sep 2025 12:26:28 -0700
From: <dan.j.williams@...el.com>
To: Andy Shevchenko <andriy.shevchenko@...el.com>, <dan.j.williams@...el.com>
CC: Andrew Morton <akpm@...ux-foundation.org>, <peterz@...radead.org>,
	<linux-kernel@...r.kernel.org>, <linux-cxl@...r.kernel.org>, "Nathan
 Chancellor" <nathan@...nel.org>, Linus Torvalds
	<torvalds@...ux-foundation.org>, Dave Jiang <dave.jiang@...el.com>, "David
 Lechner" <dlechner@...libre.com>, Jonathan Cameron
	<jonathan.cameron@...wei.com>
Subject: Re: [PATCH v2] cleanup: Fix "unused function" warnings with
 conditional guards

Andy Shevchenko wrote:
> On Wed, Sep 17, 2025 at 04:21:07PM -0700, dan.j.williams@...el.com wrote:
> > Andrew Morton wrote:
> 
> [..]
> 
> > > > Alternatively just merge the suggestion in [1], and call it a day.
> > > > 
> > > > Link: http://lore.kernel.org/20250813152142.GP4067720@noisy.programming.kicks-ass.net [1]
> > > 
> > > lgtm, unless we think this (your) patch improves the code for other reasons?
> > 
> > The tl;dr above is that the warning could have small value, but probably
> > not greater than the overall benefit to Linux to stop bothering folks
> > with this low-value warning by default at W=1.
> > 
> > So I am over the sunk costs, and moving this warning to W=2 is the way
> > to go.
> 
> Can somebody add a fix so, we have v6.17 able to be built with `make W=1`, please?

Andy, might you have time to take Peter's proposed diff and wrap it with
a changelog for Andrew to pull?