CC: [email protected] CC: [email protected] CC: [email protected] TO: Chuck Lever <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3498e7f2bb415e447354a3debef6738d9655768c commit: 7954c8503b8709660d93505a40f1847634d9c3ba svcrdma: Remove chunk list pointers date: 12 months ago :::::: branch date: 11 hours ago :::::: commit date: 12 months ago config: x86_64-randconfig-c007-20211124 (https://download.01.org/0day-ci/archive/20211128/[email protected]/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 67a1c45def8a75061203461ab0060c75c864df1c) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7954c8503b8709660d93505a40f1847634d9c3ba git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 7954c8503b8709660d93505a40f1847634d9c3ba # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) result_msg = p; ^ ~ 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. 2 warnings generated. Suppressed 2 warnings (2 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. 6 warnings generated. net/ceph/auth_x.c:35:22: warning: Value stored to 'xi' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct ceph_x_info *xi = ac->private; ^~ ~~~~~~~~~~~ net/ceph/auth_x.c:35:22: note: Value stored to 'xi' during its initialization is never read struct ceph_x_info *xi = ac->private; ^~ ~~~~~~~~~~~ net/ceph/auth_x.c:591:2: warning: Value stored to 'result' is never read [clang-analyzer-deadcode.DeadStores] result = le32_to_cpu(head->result); ^ net/ceph/auth_x.c:591:2: note: Value stored to 'result' is never read 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. 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. 2 warnings generated. Suppressed 2 warnings (2 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 (2 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 5 warnings generated. Suppressed 5 warnings (3 in non-user code, 2 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. Suppressed 2 warnings (2 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. 9 warnings generated. lib/zstd/decompress.c:1557:4: warning: Value stored to 'remainingSize' is never read [clang-analyzer-deadcode.DeadStores] remainingSize -= 4; ^ ~ lib/zstd/decompress.c:1557:4: note: Value stored to 'remainingSize' is never read remainingSize -= 4; ^ ~ Suppressed 8 warnings (3 in non-user code, 5 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 2 warnings generated. 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. 5 warnings generated. >> net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:117:2: warning: Use of memory after >> it is freed [clang-analyzer-unix.Malloc] return list_first_entry_or_null(list, struct svc_rdma_recv_ctxt, ^ net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:377:17: note: Calling 'svc_rdma_next_recv_ctxt' while ((ctxt = svc_rdma_next_recv_ctxt(&rdma->sc_read_complete_q))) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:117:9: note: Left side of '||' is false return list_first_entry_or_null(list, struct svc_rdma_recv_ctxt, ^ include/linux/list.h:545:28: note: expanded from macro 'list_first_entry_or_null' struct list_head *pos__ = READ_ONCE(head__->next); \ ^ include/asm-generic/rwonce.h:49:2: note: expanded from macro 'READ_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:21: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:277:3: note: expanded from macro '__native_word' (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \ ^ net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:117:9: note: Left side of '||' is false return list_first_entry_or_null(list, struct svc_rdma_recv_ctxt, ^ include/linux/list.h:545:28: note: expanded from macro 'list_first_entry_or_null' struct list_head *pos__ = READ_ONCE(head__->next); \ ^ include/asm-generic/rwonce.h:49:2: note: expanded from macro 'READ_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:21: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:277:3: note: expanded from macro '__native_word' (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \ ^ net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:117:9: note: Left side of '||' is false return list_first_entry_or_null(list, struct svc_rdma_recv_ctxt, ^ include/linux/list.h:545:28: note: expanded from macro 'list_first_entry_or_null' struct list_head *pos__ = READ_ONCE(head__->next); \ ^ include/asm-generic/rwonce.h:49:2: note: expanded from macro 'READ_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:21: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:277:3: note: expanded from macro '__native_word' (sizeof(t) == sizeof(char) || sizeof(t) == sizeof(short) || \ ^ net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:117:9: note: Left side of '||' is true return list_first_entry_or_null(list, struct svc_rdma_recv_ctxt, ^ include/linux/list.h:545:28: note: expanded from macro 'list_first_entry_or_null' struct list_head *pos__ = READ_ONCE(head__->next); \ ^ include/asm-generic/rwonce.h:49:2: note: expanded from macro 'READ_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:38: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:117:9: note: Taking false branch return list_first_entry_or_null(list, struct svc_rdma_recv_ctxt, ^ include/linux/list.h:545:28: note: expanded from macro 'list_first_entry_or_null' struct list_head *pos__ = READ_ONCE(head__->next); \ ^ include/asm-generic/rwonce.h:49:2: note: expanded from macro 'READ_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:2: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:315:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:303:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:295:3: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^ net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:117:9: note: Loop condition is false. Exiting loop return list_first_entry_or_null(list, struct svc_rdma_recv_ctxt, ^ include/linux/list.h:545:28: note: expanded from macro 'list_first_entry_or_null' struct list_head *pos__ = READ_ONCE(head__->next); \ ^ include/asm-generic/rwonce.h:49:2: note: expanded from macro 'READ_ONCE' compiletime_assert_rwonce_type(x); \ ^ include/asm-generic/rwonce.h:36:2: note: expanded from macro 'compiletime_assert_rwonce_type' compiletime_assert(__native_word(t) || sizeof(t) == sizeof(long long), \ ^ include/linux/compiler_types.h:315:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:303:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) vim +117 net/sunrpc/xprtrdma/svc_rdma_recvfrom.c ecf85b2384ea5f Chuck Lever 2018-05-07 113 ecf85b2384ea5f Chuck Lever 2018-05-07 114 static inline struct svc_rdma_recv_ctxt * ecf85b2384ea5f Chuck Lever 2018-05-07 115 svc_rdma_next_recv_ctxt(struct list_head *list) ecf85b2384ea5f Chuck Lever 2018-05-07 116 { ecf85b2384ea5f Chuck Lever 2018-05-07 @117 return list_first_entry_or_null(list, struct svc_rdma_recv_ctxt, ecf85b2384ea5f Chuck Lever 2018-05-07 118 rc_list); ecf85b2384ea5f Chuck Lever 2018-05-07 119 } ecf85b2384ea5f Chuck Lever 2018-05-07 120 :::::: The code at line 117 was first introduced by commit :::::: ecf85b2384ea5f7cb0577bf6143bc46d9ecfe4d3 svcrdma: Introduce svc_rdma_recv_ctxt :::::: TO: Chuck Lever <[email protected]> :::::: CC: J. Bruce Fields <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
