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

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Message-ID: <Z_zdwSCfaYDotOI2@smile.fi.intel.com>
Date: Mon, 14 Apr 2025 13:04:49 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: Jens Axboe <axboe@...nel.dk>, dm-devel@...ts.linux.dev,
	linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Cc: Alasdair Kergon <agk@...hat.com>, Mike Snitzer <snitzer@...nel.org>,
	Mikulas Patocka <mpatocka@...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] dm table: Fix W=1 build warning when
 mempool_needs_integrity is unused

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.

-- 
With Best Regards,
Andy Shevchenko