Hi Andrey, [auto build test WARNING on tip/auto-latest -- if it's inappropriate base, please suggest rules for selecting the more suitable base]
url: https://github.com/0day-ci/linux/commits/Andrey-Ryabinin/Provide-READ_ONCE_NOCHECK/20151013-204127 config: mn10300-allyesconfig (attached as .config) reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=mn10300 All warnings (new ones prefixed by >>): fs/nfs/filelayout/filelayout.c: In function 'filelayout_read_pagelist': fs/nfs/filelayout/filelayout.c:476:2: warning: format '%Zu' expects argument of type 'size_t', but argument 5 has type '__u32' [-Wformat=] dprintk("--> %s ino %lu pgbase %u req %Zu@%llu\n", ^ In file included from include/linux/nfs_fs.h:28:0, from fs/nfs/filelayout/filelayout.c:32: fs/nfs/filelayout/filelayout.c: In function 'filelayout_write_pagelist': include/linux/compiler.h:270:8: warning: format '%Zu' expects argument of type 'size_t', but argument 5 has type '__u32' [-Wformat=] union { typeof(x) __val; char __c[1]; } __u; \ ^ include/linux/sunrpc/debug.h:33:24: note: in definition of macro 'dfprintk' printk(KERN_DEFAULT args); \ ^ >> include/linux/compiler.h:274:22: note: in expansion of macro '__READ_ONCE' #define READ_ONCE(x) __READ_ONCE(x, _check) ^ include/asm-generic/atomic.h:130:24: note: in expansion of macro 'READ_ONCE' #define atomic_read(v) READ_ONCE((v)->counter) ^ include/linux/sunrpc/debug.h:23:48: note: in expansion of macro 'atomic_read' #define dprintk(args...) dfprintk(FACILITY, ## args) ^ fs/nfs/filelayout/filelayout.c:534:2: note: in expansion of macro 'dprintk' dprintk("%s ino %lu sync %d req %Zu@%llu DS: %s cl_count %d\n", ^ vim +/__READ_ONCE +274 include/linux/compiler.h 264 * with an explicit memory barrier or atomic instruction that provides the 265 * required ordering. 266 */ 267 268 #define __READ_ONCE(x, check) \ 269 ({ \ > 270 union { typeof(x) __val; char __c[1]; } __u; \ 271 __read_once_size##check(&(x), __u.__c, sizeof(x)); \ 272 __u.__val; \ 273 }) > 274 #define READ_ONCE(x) __READ_ONCE(x, _check) 275 #define READ_ONCE_NOCHECK(x) __READ_ONCE(x, _nocheck) 276 277 #define WRITE_ONCE(x, val) \ --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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