linux-kernel - Re: [PATCH v1 1/1] dm table: Fix W=1 build warning when mempool_needs

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Message-ID: <Z_359RoIe9TjAWV0@smile.fi.intel.com>
Date: Tue, 15 Apr 2025 09:17:25 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Mikulas Patocka <mpatocka@...hat.com>
Cc: Jens Axboe <axboe@...nel.dk>, dm-devel@...ts.linux.dev,
	linux-kernel@...r.kernel.org, llvm@...ts.linux.dev,
	Alasdair Kergon <agk@...hat.com>, Mike Snitzer <snitzer@...nel.org>,
	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] dm table: Fix W=1 build warning when
 mempool_needs_integrity is unused

On Mon, Apr 14, 2025 at 02:13:18PM +0200, Mikulas Patocka wrote:
> On Mon, 14 Apr 2025, Andy Shevchenko wrote:
> > On Mon, Apr 14, 2025 at 01:04:49PM +0300, Andy Shevchenko wrote:
> > > On Mon, Apr 07, 2025 at 10:21:26AM +0300, Andy Shevchenko wrote:
> > > > The mempool_needs_integrity is unused. This, in particular, prevents
> > > > kernel builds with Clang, `make W=1` and CONFIG_WERROR=y:
> > > > 
> > > > drivers/md/dm-table.c:1052:7: error: variable 'mempool_needs_integrity' set but not used [-Werror,-Wunused-but-set-variable]
> > > >  1052 |         bool mempool_needs_integrity = t->integrity_supported;
> > > >       |              ^
> > > > 
> > > > Fix this by removing the leftover.
> > > 
> > > This issue is still present in v6.15-rc1.
> > 
> > I meant v6.15-rc2, of course.
> 
> I will send it to Linus (maybe with other changes) before 6.15 comes out.

Thank you!

-- 
With Best Regards,
Andy Shevchenko