tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-4.4 head: ff2f124e9fc35cb17b382fa64807a9f3a8f532cf commit: ff2f124e9fc35cb17b382fa64807a9f3a8f532cf [1/1] BACKPORT: FROMLIST: xhci: Tune interrupt blocking for isochronous transfers config: x86_64-randconfig-a012-20201019 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 094e9f4779eb9b5c6a49014f2f80b8cbb833572f) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-4.4 git checkout ff2f124e9fc35cb17b382fa64807a9f3a8f532cf # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <scratch space>:86:1: note: expanded from here this_cpu_add_8 ^ arch/x86/include/asm/percpu.h:478:35: note: expanded from macro 'this_cpu_add_8' #define this_cpu_add_8(pcp, val) percpu_add_op((pcp), val) ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/include/asm/percpu.h:130:31: note: expanded from macro 'percpu_add_op' ((val) == 1 || (val) == -1)) ? \ ~~~ ^ ~~ In file included from drivers/watchdog/i6300esb.c:39: In file included from include/linux/pci.h:32: In file included from include/linux/resource_ext.h:19: In file included from include/linux/slab.h:113: In file included from include/linux/kasan.h:4: In file included from include/linux/sched.h:62: In file included from include/linux/cgroup-defs.h:16: include/linux/percpu-refcount.h:276:3: warning: comparison of integers of different signs: 'unsigned long' and 'int' [-Wsign-compare] this_cpu_sub(*percpu_count, nr); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/percpu-defs.h:536:33: note: expanded from macro 'this_cpu_sub' #define this_cpu_sub(pcp, val) this_cpu_add(pcp, -(typeof(pcp))(val)) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/percpu-defs.h:526:33: note: expanded from macro 'this_cpu_add' #define this_cpu_add(pcp, val) __pcpu_size_call(this_cpu_add_, pcp, val) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/percpu-defs.h:397:11: note: expanded from macro '__pcpu_size_call' case 8: stem##8(variable, __VA_ARGS__);break; \ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ <scratch space>:246:1: note: expanded from here this_cpu_add_8 ^ arch/x86/include/asm/percpu.h:478:35: note: expanded from macro 'this_cpu_add_8' #define this_cpu_add_8(pcp, val) percpu_add_op((pcp), val) ^~~~~~~~~~~~~~~~~~~~~~~~~ arch/x86/include/asm/percpu.h:130:31: note: expanded from macro 'percpu_add_op' ((val) == 1 || (val) == -1)) ? \ ~~~ ^ ~~ In file included from drivers/watchdog/i6300esb.c:41: In file included from include/linux/uaccess.h:8: arch/x86/include/asm/uaccess.h:754:26: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] if (likely(sz < 0 || sz >= n)) { ~~ ^ ~ include/linux/compiler.h:150:73: note: expanded from macro 'likely' # define likely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 1)) ^ include/linux/compiler.h:139:29: note: expanded from macro '__branch_check__' ______r = likely_notrace(x); \ ^ include/linux/compiler.h:126:47: note: expanded from macro 'likely_notrace' #define likely_notrace(x) __builtin_expect(!!(x), 1) ^ In file included from drivers/watchdog/i6300esb.c:41: In file included from include/linux/uaccess.h:8: arch/x86/include/asm/uaccess.h:754:26: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] if (likely(sz < 0 || sz >= n)) { ~~ ^ ~ include/linux/compiler.h:150:43: note: expanded from macro 'likely' # define likely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 1)) ^ In file included from drivers/watchdog/i6300esb.c:41: In file included from include/linux/uaccess.h:8: arch/x86/include/asm/uaccess.h:754:26: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] if (likely(sz < 0 || sz >= n)) { ~~ ^ ~ include/linux/compiler.h:150:51: note: expanded from macro 'likely' # define likely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 1)) ^ In file included from drivers/watchdog/i6300esb.c:41: In file included from include/linux/uaccess.h:8: arch/x86/include/asm/uaccess.h:773:26: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] if (likely(sz < 0 || sz >= n)) { ~~ ^ ~ include/linux/compiler.h:150:73: note: expanded from macro 'likely' # define likely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 1)) ^ include/linux/compiler.h:139:29: note: expanded from macro '__branch_check__' ______r = likely_notrace(x); \ ^ include/linux/compiler.h:126:47: note: expanded from macro 'likely_notrace' #define likely_notrace(x) __builtin_expect(!!(x), 1) ^ In file included from drivers/watchdog/i6300esb.c:41: In file included from include/linux/uaccess.h:8: arch/x86/include/asm/uaccess.h:773:26: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] if (likely(sz < 0 || sz >= n)) { ~~ ^ ~ include/linux/compiler.h:150:43: note: expanded from macro 'likely' # define likely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 1)) ^ In file included from drivers/watchdog/i6300esb.c:41: In file included from include/linux/uaccess.h:8: arch/x86/include/asm/uaccess.h:773:26: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] if (likely(sz < 0 || sz >= n)) { ~~ ^ ~ include/linux/compiler.h:150:51: note: expanded from macro 'likely' # define likely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 1)) ^ 8 warnings generated. /tmp/i6300esb-633821.s: Assembler messages: -- off == frag->page_offset + skb_frag_size(frag); ~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/skbuff.h:2933:51: warning: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Wsign-compare] return copy_from_iter(data, len, &msg->msg_iter) == len ? 0 : -EFAULT; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~ include/linux/skbuff.h:2938:49: warning: comparison of integers of different signs: 'size_t' (aka 'unsigned long') and 'int' [-Wsign-compare] return copy_to_iter(data, len, &msg->msg_iter) == len ? 0 : -EFAULT; ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~ In file included from drivers/net/ethernet/nvidia/forcedeth.c:51: In file included from include/linux/netdevice.h:43: In file included from include/net/net_namespace.h:17: In file included from include/net/netns/ipv4.h:9: In file included from include/net/inet_frag.h:4: include/linux/rhashtable.h:264:34: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] return atomic_read(&ht->nelems) > (tbl->size / 4 * 3) && ~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~ include/linux/rhashtable.h:277:34: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] return atomic_read(&ht->nelems) < (tbl->size * 3 / 10) && ~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~ include/linux/rhashtable.h:289:34: warning: comparison of integers of different signs: 'int' and 'const unsigned int' [-Wsign-compare] return atomic_read(&ht->nelems) > tbl->size && ~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~ include/linux/rhashtable.h:302:34: warning: comparison of integers of different signs: 'int' and 'const unsigned int' [-Wsign-compare] atomic_read(&ht->nelems) >= ht->p.insecure_max_entries; ~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~ In file included from drivers/net/ethernet/nvidia/forcedeth.c:51: include/linux/netdevice.h:2413:34: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] skb_checksum_start_offset(skb) < ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ include/linux/netdevice.h:3051:15: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] BUG_ON(index >= dev->num_rx_queues); ~~~~~ ^ ~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:58:45: note: expanded from macro 'BUG_ON' #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0) ^~~~~~~~~ include/linux/compiler.h:153:75: note: expanded from macro 'unlikely' # define unlikely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 0)) ^ include/linux/compiler.h:139:29: note: expanded from macro '__branch_check__' ______r = likely_notrace(x); \ ^ include/linux/compiler.h:126:47: note: expanded from macro 'likely_notrace' #define likely_notrace(x) __builtin_expect(!!(x), 1) ^ In file included from drivers/net/ethernet/nvidia/forcedeth.c:51: include/linux/netdevice.h:3051:15: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] BUG_ON(index >= dev->num_rx_queues); ~~~~~ ^ ~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:58:45: note: expanded from macro 'BUG_ON' #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0) ^~~~~~~~~ include/linux/compiler.h:153:45: note: expanded from macro 'unlikely' # define unlikely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 0)) ^ In file included from drivers/net/ethernet/nvidia/forcedeth.c:51: include/linux/netdevice.h:3051:15: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] BUG_ON(index >= dev->num_rx_queues); ~~~~~ ^ ~~~~~~~~~~~~~~~~~~ include/asm-generic/bug.h:58:45: note: expanded from macro 'BUG_ON' #define BUG_ON(condition) do { if (unlikely(condition)) BUG(); } while (0) ^~~~~~~~~ include/linux/compiler.h:153:53: note: expanded from macro 'unlikely' # define unlikely(x) (__builtin_constant_p(x) ? !!(x) : __branch_check__(x, 0)) ^ In file included from drivers/net/ethernet/nvidia/forcedeth.c:51: include/linux/netdevice.h:3325:37: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] if (debug_value < 0 || debug_value >= (sizeof(u32) * 8)) ~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:1216:16: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] for (i = 0; i < ARRAY_SIZE(ri); i++) { ~ ^ ~~~~~~~~~~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:2009:16: warning: comparison of integers of different signs: 'unsigned int' and 'int' [-Wsign-compare] for (i = 0; i < np->tx_ring_size; i++) { ~ ^ ~~~~~~~~~~~~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:2673:17: warning: comparison of integers of different signs: 'int' and 'u32' (aka 'unsigned int') [-Wsign-compare] for (i = 0; i <= np->register_size; i += 32) { ~ ^ ~~~~~~~~~~~~~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:3011:30: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] if (new_mtu < 64 || new_mtu > np->pkt_limit) ~~~~~~~ ^ ~~~~~~~~~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:3401:44: warning: comparison of integers of different signs: 'u32' (aka 'unsigned int') and 'int' [-Wsign-compare] if (np->duplex == newdup && np->linkspeed == newls) ~~~~~~~~~~~~~ ^ ~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:3947:17: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:4060:17: warning: comparison of integers of different signs: 'int' and 'unsigned int' [-Wsign-compare] for (i = 0; i < (np->msi_flags & NV_MSI_X_VECTORS_MASK); i++) ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:4511:16: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] for (i = 0; i < np->register_size/sizeof(u32); i++) ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:6116:16: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] for (i = 0; i <= np->register_size/sizeof(u32); i++) ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/nvidia/forcedeth.c:6131:16: warning: comparison of integers of different signs: 'int' and 'unsigned long' [-Wsign-compare] for (i = 0; i <= np->register_size/sizeof(u32); i++) ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 32 warnings generated. /tmp/forcedeth-102397.s: Assembler messages: /tmp/forcedeth-102397.s:3088: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts' /tmp/forcedeth-102397.s:3119: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts' /tmp/forcedeth-102397.s:9212: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts' /tmp/forcedeth-102397.s:9309: Warning: no instruction mnemonic suffix given and no register operands; using default for `bts' /tmp/forcedeth-102397.s:18260: Warning: no instruction mnemonic suffix given and no register operands; using default for `btr' --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org