CC: l...@lists.linux.dev CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: Dave Chinner <dchin...@redhat.com> CC: Brian Foster <bfos...@redhat.com> CC: "Darrick J. Wong" <djw...@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 09688c0166e76ce2fb85e86b9d99be8b0084cdf9 commit: 934933c3eec9e4a5826d3d7a47aca0742337fded xfs: convert raw ag walks to use for_each_perag date: 10 months ago :::::: branch date: 26 hours ago :::::: commit date: 10 months ago config: arm-randconfig-c002-20220308 (https://download.01.org/0day-ci/archive/20220315/202203150526.dy4qhmvl-...@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=934933c3eec9e4a5826d3d7a47aca0742337fded git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 934933c3eec9e4a5826d3d7a47aca0742337fded # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> clang-analyzer warnings: (new ones prefixed by >>) drivers/usb/gadget/udc/gr_udc.c:614:9: note: Calling 'gr_setup_out_desc_list' ret = gr_setup_out_desc_list(ep, req, gfp_flags); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/usb/gadget/udc/gr_udc.c:482:2: note: Null pointer value stored to field 'first_desc' req->first_desc = NULL; /* Signals that no allocation is done yet */ ^~~~~~~~~~~~~~~~~~~~~~ drivers/usb/gadget/udc/gr_udc.c:485:9: note: Assuming 'bytes_left' is <= 0 while (bytes_left > 0) { ^~~~~~~~~~~~~~ drivers/usb/gadget/udc/gr_udc.c:485:2: note: Loop condition is false. Execution continues on line 503 while (bytes_left > 0) { ^ drivers/usb/gadget/udc/gr_udc.c:503:24: note: Access to field 'ctrl' results in a dereference of a null pointer (loaded from field 'first_desc') req->first_desc->ctrl |= GR_DESC_OUT_CTRL_EN; ~~~~~~~~~~ ^ Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:387:2: warning: Value stored to 'err' is never read [clang-analyzer-deadcode.DeadStores] err = anx6345_clear_bits(anx6345->map[I2C_IDX_TXCOM], ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/bridge/analogix/analogix-anx6345.c:387:2: note: Value stored to 'err' is never read err = anx6345_clear_bits(anx6345->map[I2C_IDX_TXCOM], ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c:424:2: warning: Value stored to 'reg' is never read [clang-analyzer-deadcode.DeadStores] reg = readl(dp->reg_base + ANALOGIX_DP_SYS_CTL_3); ^ drivers/gpu/drm/bridge/analogix/analogix_dp_reg.c:424:2: note: Value stored to 'reg' is never read Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 3 warnings generated. Suppressed 3 warnings (3 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. fs/xfs/xfs_pnfs.c:39:3: warning: Value stored to 'error' is never read [clang-analyzer-deadcode.DeadStores] error = break_layout(inode, true); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~ fs/xfs/xfs_pnfs.c:39:3: note: Value stored to 'error' is never read error = break_layout(inode, true); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. >> fs/xfs/scrub/bmap.c:621:2: warning: Undefined or garbage value returned to >> caller [clang-analyzer-core.uninitialized.UndefReturn] return error; ^ ~~~~~ fs/xfs/scrub/bmap.c:578:26: note: Assuming 'whichfork' is not equal to 0 struct xfs_ifork *ifp = XFS_IFORK_PTR(sc->ip, whichfork); ^ fs/xfs/libxfs/xfs_inode_fork.h:98:3: note: expanded from macro 'XFS_IFORK_PTR' ((w) == XFS_DATA_FORK ? \ ^~~~~~~~~~~~~~~~~~~~ fs/xfs/scrub/bmap.c:578:26: note: '?' condition is false struct xfs_ifork *ifp = XFS_IFORK_PTR(sc->ip, whichfork); ^ fs/xfs/libxfs/xfs_inode_fork.h:98:3: note: expanded from macro 'XFS_IFORK_PTR' ((w) == XFS_DATA_FORK ? \ ^ fs/xfs/scrub/bmap.c:578:26: note: Assuming 'whichfork' is equal to 1 struct xfs_ifork *ifp = XFS_IFORK_PTR(sc->ip, whichfork); ^ fs/xfs/libxfs/xfs_inode_fork.h:100:4: note: expanded from macro 'XFS_IFORK_PTR' ((w) == XFS_ATTR_FORK ? \ ^~~~~~~~~~~~~~~~~~~~ fs/xfs/scrub/bmap.c:578:26: note: '?' condition is true struct xfs_ifork *ifp = XFS_IFORK_PTR(sc->ip, whichfork); ^ fs/xfs/libxfs/xfs_inode_fork.h:100:4: note: expanded from macro 'XFS_IFORK_PTR' ((w) == XFS_ATTR_FORK ? \ ^ fs/xfs/scrub/bmap.c:582:2: note: 'error' declared without an initial value int error; ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/xfs/scrub/bmap.c:584:6: note: Assuming the condition is false if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) || ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ fs/xfs/scrub/bmap.c:584:6: note: Left side of '||' is false if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) || ^ fs/xfs/scrub/bmap.c:585:6: note: 'whichfork' is not equal to 2 whichfork == XFS_COW_FORK || ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ fs/xfs/scrub/bmap.c:584:6: note: Left side of '||' is false if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) || ^ fs/xfs/scrub/bmap.c:584:2: note: Assuming the condition is true if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) || ^ include/linux/compiler.h:56:45: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ fs/xfs/scrub/bmap.c:584:2: note: '?' condition is false if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) || ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:31: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ fs/xfs/scrub/bmap.c:584:6: note: Left side of '||' is false if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) || ^ fs/xfs/scrub/bmap.c:585:6: note: 'whichfork' is not equal to 2 whichfork == XFS_COW_FORK || ^ include/linux/compiler.h:56:47: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^~~~ include/linux/compiler.h:58:86: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^~~~ include/linux/compiler.h:69:3: note: expanded from macro '__trace_if_value' (cond) ? \ ^~~~ fs/xfs/scrub/bmap.c:584:6: note: Left side of '||' is false if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) || ^ fs/xfs/scrub/bmap.c:584:2: note: '?' condition is false if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) || ^ include/linux/compiler.h:56:28: note: expanded from macro 'if' #define if(cond, ...) if ( __trace_if_var( !!(cond , ## __VA_ARGS__) ) ) ^ include/linux/compiler.h:58:69: note: expanded from macro '__trace_if_var' #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) ^ include/linux/compiler.h:69:2: note: expanded from macro '__trace_if_value' (cond) ? \ vim +621 fs/xfs/scrub/bmap.c 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 571 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 572 /* Make sure each rmap has a corresponding bmbt entry. */ 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 573 STATIC int c517b3aa02cff1d Darrick J. Wong 2018-07-19 574 xchk_bmap_check_rmaps( 1d8a748a8aa94a7 Darrick J. Wong 2018-07-19 575 struct xfs_scrub *sc, 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 576 int whichfork) 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 577 { daf83964a3681cf Christoph Hellwig 2020-05-18 578 struct xfs_ifork *ifp = XFS_IFORK_PTR(sc->ip, whichfork); 934933c3eec9e4a Dave Chinner 2021-06-02 579 struct xfs_perag *pag; 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 580 xfs_agnumber_t agno; 5fd68bdb5a87c92 Darrick J. Wong 2020-05-16 581 bool zero_size; 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 582 int error; 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 583 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 584 if (!xfs_sb_version_hasrmapbt(&sc->mp->m_sb) || 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 585 whichfork == XFS_COW_FORK || 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 586 (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)) 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 587 return 0; 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 588 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 589 /* Don't support realtime rmap checks yet. */ 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 590 if (XFS_IS_REALTIME_INODE(sc->ip) && whichfork == XFS_DATA_FORK) 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 591 return 0; 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 592 5fd68bdb5a87c92 Darrick J. Wong 2020-05-16 593 ASSERT(XFS_IFORK_PTR(sc->ip, whichfork) != NULL); 5fd68bdb5a87c92 Darrick J. Wong 2020-05-16 594 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 595 /* 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 596 * Only do this for complex maps that are in btree format, or for 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 597 * situations where we would seem to have a size but zero extents. 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 598 * The inode repair code can zap broken iforks, which means we have 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 599 * to flag this bmap as corrupt if there are rmaps that need to be 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 600 * reattached. 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 601 */ f7e67b20ecbbcb9 Christoph Hellwig 2020-05-18 602 5fd68bdb5a87c92 Darrick J. Wong 2020-05-16 603 if (whichfork == XFS_DATA_FORK) 5fd68bdb5a87c92 Darrick J. Wong 2020-05-16 604 zero_size = i_size_read(VFS_I(sc->ip)) == 0; 5fd68bdb5a87c92 Darrick J. Wong 2020-05-16 605 else 5fd68bdb5a87c92 Darrick J. Wong 2020-05-16 606 zero_size = false; 5fd68bdb5a87c92 Darrick J. Wong 2020-05-16 607 f7e67b20ecbbcb9 Christoph Hellwig 2020-05-18 608 if (ifp->if_format != XFS_DINODE_FMT_BTREE && daf83964a3681cf Christoph Hellwig 2020-05-18 609 (zero_size || ifp->if_nextents > 0)) 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 610 return 0; 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 611 934933c3eec9e4a Dave Chinner 2021-06-02 612 for_each_perag(sc->mp, agno, pag) { 934933c3eec9e4a Dave Chinner 2021-06-02 613 error = xchk_bmap_check_ag_rmaps(sc, whichfork, pag->pag_agno); 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 614 if (error) 934933c3eec9e4a Dave Chinner 2021-06-02 615 break; 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 616 if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT) 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 617 break; 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 618 } 934933c3eec9e4a Dave Chinner 2021-06-02 619 if (pag) 934933c3eec9e4a Dave Chinner 2021-06-02 620 xfs_perag_put(pag); 934933c3eec9e4a Dave Chinner 2021-06-02 @621 return error; 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 622 } 5e777b62b0bcb64 Darrick J. Wong 2018-03-23 623 --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
