CC: [email protected] CC: [email protected] CC: [email protected] TO: David Howells <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-rewrite-indexing-3 head: d2eff33286af9373ec469be3146d6e122c07264f commit: 9c9776d88423ae7064bd18101f15cad1008df812 [51/55] 9p: Use fscache indexing rewrite and reenable caching :::::: branch date: 2 days ago :::::: commit date: 2 days ago config: arm-randconfig-c002-20211103 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 264d3b6d4e08401c5b50a85bd76e80b3461d77e6) 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/dhowells/linux-fs.git/commit/?id=9c9776d88423ae7064bd18101f15cad1008df812 git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git git fetch --no-tags dhowells-fs fscache-rewrite-indexing-3 git checkout 9c9776d88423ae7064bd18101f15cad1008df812 # save the attached .config 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 <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) ^ include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/compiler_types.h:317:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:305:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:297:3: note: expanded from macro '__compiletime_assert' if (!(condition)) \ ^ include/linux/sched.h:1632:2: note: Loop condition is false. Exiting loop BUILD_BUG_ON(1 + ilog2(TASK_REPORT_MAX) != sizeof(state_char) - 1); ^ include/linux/build_bug.h:50:2: note: expanded from macro 'BUILD_BUG_ON' BUILD_BUG_ON_MSG(condition, "BUILD_BUG_ON failed: " #condition) ^ include/linux/build_bug.h:39:37: note: expanded from macro 'BUILD_BUG_ON_MSG' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^ include/linux/compiler_types.h:317:2: note: expanded from macro 'compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ include/linux/compiler_types.h:305:2: note: expanded from macro '_compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^ include/linux/compiler_types.h:295:2: note: expanded from macro '__compiletime_assert' do { \ ^ include/linux/sched.h:1634:2: note: Undefined or garbage value returned to caller return state_char[state]; ^ ~~~~~~~~~~~~~~~~~ kernel/sched/core.c:5492:16: warning: Value stored to 'preempt_disable_ip' during its initialization is never read [clang-analyzer-deadcode.DeadStores] unsigned long preempt_disable_ip = get_preempt_disable_ip(current); ^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:5492:16: note: Value stored to 'preempt_disable_ip' during its initialization is never read unsigned long preempt_disable_ip = get_preempt_disable_ip(current); ^~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:6250:3: warning: Value stored to 'rq' is never read [clang-analyzer-deadcode.DeadStores] rq = context_switch(rq, prev, next, &rf); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:6250:3: note: Value stored to 'rq' is never read rq = context_switch(rq, prev, next, &rf); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:9285:3: warning: Value stored to 'ptr' is never read [clang-analyzer-deadcode.DeadStores] ptr = (unsigned long)kzalloc(ptr, GFP_NOWAIT); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/sched/core.c:9285:3: note: Value stored to 'ptr' is never read ptr = (unsigned long)kzalloc(ptr, GFP_NOWAIT); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 11 warnings (4 in non-user code, 7 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. 7 warnings generated. fs/9p/vfs_inode.c:164:2: warning: Value stored to 'ret' is never read [clang-analyzer-deadcode.DeadStores] ret = 0; ^ ~ fs/9p/vfs_inode.c:164:2: note: Value stored to 'ret' is never read ret = 0; ^ ~ fs/9p/vfs_inode.c:603:2: warning: Value stored to 'err' is never read [clang-analyzer-deadcode.DeadStores] err = 0; ^ ~ fs/9p/vfs_inode.c:603:2: note: Value stored to 'err' is never read err = 0; ^ ~ fs/9p/vfs_inode.c:822:2: warning: Value stored to 'err' is never read [clang-analyzer-deadcode.DeadStores] err = 0; ^ ~ fs/9p/vfs_inode.c:822:2: note: Value stored to 'err' is never read err = 0; ^ ~ fs/9p/vfs_inode.c:932:2: warning: Value stored to 'retval' is never read [clang-analyzer-deadcode.DeadStores] retval = 0; ^ ~ fs/9p/vfs_inode.c:932:2: note: Value stored to 'retval' is never read retval = 0; ^ ~ fs/9p/vfs_inode.c:1079:2: warning: Value stored to 'retval' is never read [clang-analyzer-deadcode.DeadStores] retval = -EPERM; ^ ~~~~~~ fs/9p/vfs_inode.c:1079:2: note: Value stored to 'retval' is never read retval = -EPERM; ^ ~~~~~~ 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. fs/9p/vfs_inode_dotl.c:391:2: warning: Value stored to 'err' is never read [clang-analyzer-deadcode.DeadStores] err = 0; ^ ~ fs/9p/vfs_inode_dotl.c:391:2: note: Value stored to 'err' is never read err = 0; ^ ~ 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. >> fs/9p/vfs_addr.c:81:25: warning: Value stored to 'cookie' during its >> initialization is never read [clang-analyzer-deadcode.DeadStores] struct fscache_cookie *cookie = v9fs_inode_cookie(V9FS_I(inode)); ^~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/9p/vfs_addr.c:81:25: note: Value stored to 'cookie' during its initialization is never read struct fscache_cookie *cookie = v9fs_inode_cookie(V9FS_I(inode)); ^~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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. 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. 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. 5 warnings generated. fs/cifs/ioctl.c:334:4: warning: Value stored to 'caps' is never read [clang-analyzer-deadcode.DeadStores] caps = le64_to_cpu(tcon->fsUnixInfo.Capability); ^ fs/cifs/ioctl.c:334:4: note: Value stored to 'caps' is never read Suppressed 4 warnings (3 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. 9 warnings generated. fs/cifs/sess.c:175:22: warning: Value stored to 'ipv4' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/cifs/sess.c:175:22: note: Value stored to 'ipv4' during its initialization is never read struct sockaddr_in *ipv4 = (struct sockaddr_in *)&iface->sockaddr; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/cifs/sess.c:176:23: warning: Value stored to 'ipv6' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/cifs/sess.c:176:23: note: Value stored to 'ipv6' during its initialization is never read struct sockaddr_in6 *ipv6 = (struct sockaddr_in6 *)&iface->sockaddr; ^~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/cifs/sess.c:454:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy] strcpy(bcc_ptr, "Linux version "); ^~~~~~ fs/cifs/sess.c:454:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 strcpy(bcc_ptr, "Linux version "); ^~~~~~ fs/cifs/sess.c:456:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy] strcpy(bcc_ptr, init_utsname()->release); ^~~~~~ fs/cifs/sess.c:456:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 strcpy(bcc_ptr, init_utsname()->release); ^~~~~~ fs/cifs/sess.c:459:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy] strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); ^~~~~~ fs/cifs/sess.c:459:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 strcpy(bcc_ptr, CIFS_NETWORK_OPSYS); ^~~~~~ fs/cifs/sess.c:878:2: warning: Attempt to free released memory [clang-analyzer-unix.Malloc] kfree(sess_data->iov[2].iov_base); ^ fs/cifs/sess.c:1467:6: note: Assuming 'ses' is not equal to NULL if (ses == NULL) { ^~~~~~~~~~~ fs/cifs/sess.c:1467:2: note: Taking false branch if (ses == NULL) { ^ fs/cifs/sess.c:1473:6: note: Assuming 'sess_data' is non-null if (!sess_data) ^~~~~~~~~~ fs/cifs/sess.c:1473:2: note: Taking false branch if (!sess_data) ^ fs/cifs/sess.c:1477:6: note: 'rc' is 0 if (rc) ^~ fs/cifs/sess.c:1477:2: note: Taking false branch if (rc) ^ fs/cifs/sess.c:1485:2: note: Loop condition is true. Entering loop body while (sess_data->func) ^ fs/cifs/sess.c:1486:3: note: Calling 'sess_auth_rawntlmssp_negotiate' sess_data->func(sess_data); ^~~~~~~~~~~~~~~~~~~~~~~~~~ fs/cifs/sess.c:1235:2: note: Taking false branch cifs_dbg(FYI, "rawntlmssp session setup negotiate phase\n"); ^ fs/cifs/cifs_debug.h:139:2: note: expanded from macro 'cifs_dbg' vim +/cookie +81 fs/9p/vfs_addr.c 147b31cf09ee49 Eric Van Hensbergen 2006-01-18 74 44bf5408ff3753 David Howells 2020-11-18 75 /** 44bf5408ff3753 David Howells 2020-11-18 76 * v9fs_is_cache_enabled - Determine if caching is enabled for an inode 44bf5408ff3753 David Howells 2020-11-18 77 * @inode: The inode to check 44bf5408ff3753 David Howells 2020-11-18 78 */ 44bf5408ff3753 David Howells 2020-11-18 79 static bool v9fs_is_cache_enabled(struct inode *inode) 44bf5408ff3753 David Howells 2020-11-18 80 { 9c9776d88423ae David Howells 2020-11-18 @81 struct fscache_cookie *cookie = v9fs_inode_cookie(V9FS_I(inode)); 9c9776d88423ae David Howells 2020-11-18 82 9c9776d88423ae David Howells 2020-11-18 83 return fscache_cookie_enabled(cookie) && cookie->cache_priv; 44bf5408ff3753 David Howells 2020-11-18 84 } 147b31cf09ee49 Eric Van Hensbergen 2006-01-18 85 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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