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X-IronPort-AV: E=McAfee;i="6600,9927,10942"; a="15698014" X-IronPort-AV: E=Sophos;i="6.04,328,1695711600"; d="scan'208";a="15698014" Received: from orsmga007.jf.intel.com ([10.7.209.58]) by orvoesa101.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jan 2024 12:10:29 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10942"; a="773229438" X-IronPort-AV: E=Sophos;i="6.04,328,1695711600"; d="scan'208";a="773229438" Received: from lkp-server02.sh.intel.com (HELO b07ab15da5fe) ([10.239.97.151]) by orsmga007.jf.intel.com with ESMTP; 03 Jan 2024 12:10:26 -0800 Received: from kbuild by b07ab15da5fe with local (Exim 4.96) (envelope-from ) id 1rL7ZH-000MWK-2d; Wed, 03 Jan 2024 20:10:23 +0000 Date: Thu, 4 Jan 2024 04:09:30 +0800 From: kernel test robot To: Christian Brauner Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Christian Brauner Subject: [brauner-vfs:b4/vfs-bdev-file 41/42] fs/ntfs3/fsntfs.c:1011:23: warning: unused variable 'bdev' Message-ID: <202401040431.fnq6ljbX-lkp@intel.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline tree: https://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs.git b4/vfs-bdev-file head: 81a0b5d317a5188e7e8aaf68adf070d44c7a3eea commit: 6d26064a464a6f8ace90a2176a17bd6f853825e0 [41/42] [DRAFT] buffer: port block device access to files and get rid of bd_inode access config: i386-buildonly-randconfig-002-20240103 (https://download.01.org/0day-ci/archive/20240104/202401040431.fnq6ljbX-lkp@intel.com/config) compiler: ClangBuiltLinux clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240104/202401040431.fnq6ljbX-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/202401040431.fnq6ljbX-lkp@intel.com/ All warnings (new ones prefixed by >>): >> fs/ntfs3/fsntfs.c:1011:23: warning: unused variable 'bdev' [-Wunused-variable] 1011 | struct block_device *bdev = sb->s_bdev; | ^~~~ fs/ntfs3/fsntfs.c:1041:23: warning: unused variable 'bdev' [-Wunused-variable] 1041 | struct block_device *bdev = sb->s_bdev; | ^~~~ 2 warnings generated. vim +/bdev +1011 fs/ntfs3/fsntfs.c 82cae269cfa953 Konstantin Komarov 2021-08-13 1008 82cae269cfa953 Konstantin Komarov 2021-08-13 1009 int ntfs_sb_read(struct super_block *sb, u64 lbo, size_t bytes, void *buffer) 82cae269cfa953 Konstantin Komarov 2021-08-13 1010 { 82cae269cfa953 Konstantin Komarov 2021-08-13 @1011 struct block_device *bdev = sb->s_bdev; 82cae269cfa953 Konstantin Komarov 2021-08-13 1012 u32 blocksize = sb->s_blocksize; 82cae269cfa953 Konstantin Komarov 2021-08-13 1013 u64 block = lbo >> sb->s_blocksize_bits; 82cae269cfa953 Konstantin Komarov 2021-08-13 1014 u32 off = lbo & (blocksize - 1); 82cae269cfa953 Konstantin Komarov 2021-08-13 1015 u32 op = blocksize - off; 82cae269cfa953 Konstantin Komarov 2021-08-13 1016 82cae269cfa953 Konstantin Komarov 2021-08-13 1017 for (; bytes; block += 1, off = 0, op = blocksize) { 6d26064a464a6f Christian Brauner 2024-01-02 1018 struct buffer_head *bh = __bread(sb->s_f_bdev, block, blocksize); 82cae269cfa953 Konstantin Komarov 2021-08-13 1019 82cae269cfa953 Konstantin Komarov 2021-08-13 1020 if (!bh) 82cae269cfa953 Konstantin Komarov 2021-08-13 1021 return -EIO; 82cae269cfa953 Konstantin Komarov 2021-08-13 1022 82cae269cfa953 Konstantin Komarov 2021-08-13 1023 if (op > bytes) 82cae269cfa953 Konstantin Komarov 2021-08-13 1024 op = bytes; 82cae269cfa953 Konstantin Komarov 2021-08-13 1025 82cae269cfa953 Konstantin Komarov 2021-08-13 1026 memcpy(buffer, bh->b_data + off, op); 82cae269cfa953 Konstantin Komarov 2021-08-13 1027 82cae269cfa953 Konstantin Komarov 2021-08-13 1028 put_bh(bh); 82cae269cfa953 Konstantin Komarov 2021-08-13 1029 82cae269cfa953 Konstantin Komarov 2021-08-13 1030 bytes -= op; 82cae269cfa953 Konstantin Komarov 2021-08-13 1031 buffer = Add2Ptr(buffer, op); 82cae269cfa953 Konstantin Komarov 2021-08-13 1032 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1033 82cae269cfa953 Konstantin Komarov 2021-08-13 1034 return 0; 82cae269cfa953 Konstantin Komarov 2021-08-13 1035 } 82cae269cfa953 Konstantin Komarov 2021-08-13 1036 :::::: The code at line 1011 was first introduced by commit :::::: 82cae269cfa953032fbb8980a7d554d60fb00b17 fs/ntfs3: Add initialization of super block :::::: TO: Konstantin Komarov :::::: CC: Konstantin Komarov -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki