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R. Silva" Cc: oe-kbuild-all@lists.linux.dev, linux-kbuild@vger.kernel.org, linux-sparse@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, dri-devel@lists.freedesktop.org, linux-btrfs@vger.kernel.org, linux-hardening@vger.kernel.org, Vincent Mailhol Subject: Re: [PATCH v3 3/3] overflow: Remove is_non_negative() and is_negative() Message-ID: <202512251340.UApIFw9R-lkp@intel.com> References: <20251220-remove_wtype-limits-v3-3-24b170af700e@kernel.org> Precedence: bulk X-Mailing-List: linux-sparse@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251220-remove_wtype-limits-v3-3-24b170af700e@kernel.org> Hi Vincent, kernel test robot noticed the following build warnings: [auto build test WARNING on 3e7f562e20ee87a25e104ef4fce557d39d62fa85] url: https://github.com/intel-lab-lkp/linux/commits/Vincent-Mailhol/kbuild-remove-gcc-s-Wtype-limits/20251220-190509 base: 3e7f562e20ee87a25e104ef4fce557d39d62fa85 patch link: https://lore.kernel.org/r/20251220-remove_wtype-limits-v3-3-24b170af700e%40kernel.org patch subject: [PATCH v3 3/3] overflow: Remove is_non_negative() and is_negative() config: i386-randconfig-141-20251225 (https://download.01.org/0day-ci/archive/20251225/202512251340.UApIFw9R-lkp@intel.com/config) compiler: gcc-13 (Debian 13.3.0-16) 13.3.0 If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202512251340.UApIFw9R-lkp@intel.com/ smatch warnings: drivers/md/dm-stripe.c:463 stripe_io_hints() warn: unsigned '*_d' is never less than zero. drivers/md/dm-stripe.c:463 stripe_io_hints() warn: unsigned '_a' is never less than zero. vim +463 drivers/md/dm-stripe.c af4874e03ed82f Mike Snitzer 2009-06-22 454 40bea431274c24 Mike Snitzer 2009-09-04 455 static void stripe_io_hints(struct dm_target *ti, 40bea431274c24 Mike Snitzer 2009-09-04 456 struct queue_limits *limits) 40bea431274c24 Mike Snitzer 2009-09-04 457 { 40bea431274c24 Mike Snitzer 2009-09-04 458 struct stripe_c *sc = ti->private; 1071d560afb4c2 Mikulas Patocka 2025-08-11 459 unsigned int io_min, io_opt; 40bea431274c24 Mike Snitzer 2009-09-04 460 5fb9d4341b782a John Garry 2025-07-11 461 limits->chunk_sectors = sc->chunk_size; 1071d560afb4c2 Mikulas Patocka 2025-08-11 462 1071d560afb4c2 Mikulas Patocka 2025-08-11 @463 if (!check_shl_overflow(sc->chunk_size, SECTOR_SHIFT, &io_min) && 1071d560afb4c2 Mikulas Patocka 2025-08-11 464 !check_mul_overflow(io_min, sc->stripes, &io_opt)) { 1071d560afb4c2 Mikulas Patocka 2025-08-11 465 limits->io_min = io_min; 1071d560afb4c2 Mikulas Patocka 2025-08-11 466 limits->io_opt = io_opt; 1071d560afb4c2 Mikulas Patocka 2025-08-11 467 } 40bea431274c24 Mike Snitzer 2009-09-04 468 } 40bea431274c24 Mike Snitzer 2009-09-04 469 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki