linux-kernel - Re: [PATCH v2 1/1] mm: page_alloc: Avoid defining unused function

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Date: Tue, 23 Apr 2024 23:45:42 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Johannes Weiner <hannes@...xchg.org>
Cc: Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	Rasmus Villemoes <linux@...musvillemoes.dk>
Subject: Re: [PATCH v2 1/1] mm: page_alloc: Avoid defining unused function

On Tue, Apr 23, 2024 at 04:30:20PM -0400, Johannes Weiner wrote:
> On Tue, Apr 23, 2024 at 09:27:07PM +0300, Andy Shevchenko wrote:
> > On Tue, Apr 23, 2024 at 11:10:00AM -0700, Andrew Morton wrote:
> > > On Tue, 23 Apr 2024 19:14:43 +0300 Andy Shevchenko <andriy.shevchenko@...ux.intel.com> wrote:
> > > > In some configurations I got
> > > > mm/page_alloc.c:656:20: warning: unused function 'add_to_free_list' [-Wunused-function]
> > > > Becuase the only user is guarged with a certain ifdeffery,
> > > > do the same for add_to_free_list().
> > 
> > ...
> > 
> > > Thanks, I'll queue this as a fix against "mm: page_alloc: consolidate
> > > free page accounting".
> > 
> > Thank you!
> 
> Thanks for the fix. We switched most callsites to __add_to_free_list()
> now, I didn't realize the memory failure code was the only one left.

You're welcome! Hint to the future `make W=1` should be a must during
development.

> Acked-by: Johannes Weiner <hannes@...xchg.org>

-- 
With Best Regards,
Andy Shevchenko