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X-CSE-ConnectionGUID: Vq8v5JOHQwm8N/UGEDgKrg== X-CSE-MsgGUID: Do71st+qRBiWJoX2lXD9fA== X-IronPort-AV: E=McAfee;i="6800,10657,11834"; a="109260838" X-IronPort-AV: E=Sophos;i="6.25,143,1779174000"; d="scan'208";a="109260838" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Jul 2026 23:26:34 -0700 X-CSE-ConnectionGUID: 7r7+gGvIToO18zoFNp0zdA== X-CSE-MsgGUID: 3BGhQMX0RcSIYx2jHH2j+g== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,143,1779174000"; d="scan'208";a="252907481" Received: from lkp-server02.sh.intel.com (HELO ea128546eb3d) ([10.239.97.151]) by orviesa007.jf.intel.com with ESMTP; 01 Jul 2026 23:26:32 -0700 Received: from kbuild by ea128546eb3d with local (Exim 4.98.2) (envelope-from ) id 1wfAsX-00000000A5l-35ry; Thu, 02 Jul 2026 06:26:29 +0000 Date: Thu, 02 Jul 2026 14:25:55 +0800 From: kernel test robot To: oe-kbuild@lists.linux.dev Cc: lkp@intel.com, Dan Carpenter Subject: [linux-next:master 2042/2633] kernel/crash_core.c:303 crash_exclude_core_ranges() warn: we never enter this loop Message-ID: <202607021410.VIPCVui0-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: BCC: lkp@intel.com CC: oe-kbuild-all@lists.linux.dev TO: Jinjie Ruan CC: "Mike Rapoport (Microsoft)" CC: Sourabh Jain tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 4f441960e691d37c880d2cc004de06bb5b6bd5e4 commit: 5beabef0cffaa1ea6e27e85dbd526b7a28e0e7c7 [2042/2633] crash: Add crash_prepare_headers() to exclude crash kernel memory :::::: branch date: 15 hours ago :::::: commit date: 2 days ago config: sh-randconfig-r072-20260702 (https://download.01.org/0day-ci/archive/20260702/202607021410.VIPCVui0-lkp@intel.com/config) compiler: sh4-linux-gcc (GCC) 15.2.0 smatch: v0.5.0-9185-gbcc58b9c 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202607021410.VIPCVui0-lkp@intel.com/ smatch warnings: kernel/crash_core.c:303 crash_exclude_core_ranges() warn: we never enter this loop vim +303 kernel/crash_core.c 5beabef0cffaa1e Jinjie Ruan 2026-06-29 287 5beabef0cffaa1e Jinjie Ruan 2026-06-29 288 static int crash_exclude_core_ranges(struct crash_mem *cmem) 5beabef0cffaa1e Jinjie Ruan 2026-06-29 289 { 5beabef0cffaa1e Jinjie Ruan 2026-06-29 290 int ret, i; 5beabef0cffaa1e Jinjie Ruan 2026-06-29 291 5beabef0cffaa1e Jinjie Ruan 2026-06-29 292 /* Exclude crashkernel region */ 5beabef0cffaa1e Jinjie Ruan 2026-06-29 293 ret = crash_exclude_mem_range(cmem, crashk_res.start, crashk_res.end); 5beabef0cffaa1e Jinjie Ruan 2026-06-29 294 if (ret) 5beabef0cffaa1e Jinjie Ruan 2026-06-29 295 return ret; 5beabef0cffaa1e Jinjie Ruan 2026-06-29 296 5beabef0cffaa1e Jinjie Ruan 2026-06-29 297 if (crashk_low_res.end) { 5beabef0cffaa1e Jinjie Ruan 2026-06-29 298 ret = crash_exclude_mem_range(cmem, crashk_low_res.start, crashk_low_res.end); 5beabef0cffaa1e Jinjie Ruan 2026-06-29 299 if (ret) 5beabef0cffaa1e Jinjie Ruan 2026-06-29 300 return ret; 5beabef0cffaa1e Jinjie Ruan 2026-06-29 301 } 5beabef0cffaa1e Jinjie Ruan 2026-06-29 302 5beabef0cffaa1e Jinjie Ruan 2026-06-29 @303 for (i = 0; i < crashk_cma_cnt; ++i) { 5beabef0cffaa1e Jinjie Ruan 2026-06-29 304 ret = crash_exclude_mem_range(cmem, crashk_cma_ranges[i].start, 5beabef0cffaa1e Jinjie Ruan 2026-06-29 305 crashk_cma_ranges[i].end); 5beabef0cffaa1e Jinjie Ruan 2026-06-29 306 if (ret) 5beabef0cffaa1e Jinjie Ruan 2026-06-29 307 return ret; 5beabef0cffaa1e Jinjie Ruan 2026-06-29 308 } 5beabef0cffaa1e Jinjie Ruan 2026-06-29 309 5beabef0cffaa1e Jinjie Ruan 2026-06-29 310 return 0; 5beabef0cffaa1e Jinjie Ruan 2026-06-29 311 } 5beabef0cffaa1e Jinjie Ruan 2026-06-29 312 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki