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X-CSE-ConnectionGUID: My2iwh9YSqqp+Q1XX4vQQA== X-CSE-MsgGUID: Jm/mKa1cTb+GtBUtuO2S2w== X-IronPort-AV: E=McAfee;i="6800,10657,11732"; a="74750514" X-IronPort-AV: E=Sophos;i="6.23,126,1770624000"; d="scan'208";a="74750514" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Mar 2026 15:29:51 -0700 X-CSE-ConnectionGUID: UEfsFN3oQkOPU1vfF2HNrA== X-CSE-MsgGUID: IxLRS/4MS4iFKtYn1LpKug== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,126,1770624000"; d="scan'208";a="222385760" Received: from lkp-server01.sh.intel.com (HELO 63737dd503cb) ([10.239.97.150]) by orviesa009.jf.intel.com with ESMTP; 17 Mar 2026 15:29:49 -0700 Received: from kbuild by 63737dd503cb with local (Exim 4.98.2) (envelope-from ) id 1w2cv5-00000000273-0td2; Tue, 17 Mar 2026 22:29:47 +0000 Date: Wed, 18 Mar 2026 06:29:43 +0800 From: kernel test robot To: Paul Moore Cc: oe-kbuild-all@lists.linux.dev, Amir Goldstein Subject: [linux-next:master 6300/6828] fs/erofs/ishare.c:157:15: error: implicit declaration of function 'security_mmap_backing_file' Message-ID: <202603180630.HWujluGX-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: oe-kbuild-all@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 8e5a478b6d6a5bb0a3d52147862b15e4d826af19 commit: 0e2baaf8fed0eba6ae83949b8bd317d808efd220 [6300/6828] lsm: add the security_mmap_backing_file() hook config: i386-randconfig-003-20260317 (https://download.01.org/0day-ci/archive/20260318/202603180630.HWujluGX-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260318/202603180630.HWujluGX-lkp@intel.com/reproduce) 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/202603180630.HWujluGX-lkp@intel.com/ All errors (new ones prefixed by >>): fs/erofs/ishare.c: In function 'erofs_ishare_mmap': >> fs/erofs/ishare.c:157:15: error: implicit declaration of function 'security_mmap_backing_file' [-Wimplicit-function-declaration] 157 | err = security_mmap_backing_file(vma, realfile, file); | ^~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/security_mmap_backing_file +157 fs/erofs/ishare.c 149 150 static int erofs_ishare_mmap(struct file *file, struct vm_area_struct *vma) 151 { 152 struct file *realfile = file->private_data; 153 int err; 154 155 vma_set_file(vma, realfile); 156 > 157 err = security_mmap_backing_file(vma, realfile, file); 158 if (err) 159 return err; 160 161 return generic_file_readonly_mmap(file, vma); 162 } 163 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki