Hi Stafford, [auto build test WARNING on linus/master] [also build test WARNING on v4.9 next-20161220] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Stafford-Horne/openrisc-Define-__kernel_size_t-to-suppress-compiler-warnings/20161221-024243 config: openrisc-or1ksim_defconfig (attached as .config) compiler: or32-linux-gcc (GCC) 4.5.1-or32-1.0rc1 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=openrisc All warnings (new ones prefixed by >>): crypto/drbg.c: In function 'drbg_seed': >> crypto/drbg.c:1062:3: warning: format '%zu' expects type 'size_t', but argument 2 has type 'long unsigned int' crypto/drbg.c: In function 'drbg_generate': crypto/drbg.c:1275:3: warning: format '%zu' expects type 'size_t', but argument 2 has type 'long unsigned int' -- drivers/base/component.c: In function 'find_components': >> drivers/base/component.c:101:3: warning: format '%zu' expects type 'size_t', but argument 4 has type 'long unsigned int' -- drivers/char/random.c: In function 'urandom_read': >> drivers/char/random.c:1749:10: warning: format '%zd' expects type 'signed size_t', but argument 3 has type 'size_t' drivers/char/random.c: In function 'write_pool': >> drivers/char/random.c:1783:11: warning: comparison of distinct pointer types lacks a cast -- drivers/tty/serial/earlycon.c: In function 'earlycon_init': >> drivers/tty/serial/earlycon.c:74:32: warning: comparison of distinct pointer types lacks a cast -- fs/libfs.c: In function 'simple_attr_write': >> fs/libfs.c:876:9: warning: comparison of distinct pointer types lacks a cast -- lib/iov_iter.c: In function 'sanity': >> lib/iov_iter.c:319:2: warning: format '%zd' expects type 'signed size_t', but argument 3 has type 'size_t' -- lib/kstrtox.c: In function 'kstrtobool_from_user': >> lib/kstrtox.c:376:10: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtoull_from_user': lib/kstrtox.c:398:1: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtoll_from_user': lib/kstrtox.c:399:1: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtoul_from_user': lib/kstrtox.c:400:1: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtol_from_user': lib/kstrtox.c:401:1: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtouint_from_user': lib/kstrtox.c:402:1: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtoint_from_user': lib/kstrtox.c:403:1: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtou16_from_user': lib/kstrtox.c:404:1: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtos16_from_user': lib/kstrtox.c:405:1: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtou8_from_user': lib/kstrtox.c:406:1: warning: comparison of distinct pointer types lacks a cast lib/kstrtox.c: In function 'kstrtos8_from_user': lib/kstrtox.c:407:1: warning: comparison of distinct pointer types lacks a cast -- In file included from mm/percpu.c:822:0: mm/percpu-km.c: In function 'pcpu_verify_alloc_info': >> mm/percpu-km.c:106:3: warning: format '%zu' expects type 'size_t', but argument 2 has type 'long unsigned int' mm/percpu.c: In function 'pcpu_alloc': >> mm/percpu.c:891:3: warning: format '%zu' expects type 'size_t', but argument 4 has type 'long unsigned int' mm/percpu.c:891:3: warning: format '%zu' expects type 'size_t', but argument 5 has type 'long unsigned int' mm/percpu.c:1032:3: warning: format '%zu' expects type 'size_t', but argument 2 has type 'long unsigned int' mm/percpu.c:1032:3: warning: format '%zu' expects type 'size_t', but argument 3 has type 'long unsigned int' mm/percpu.c: In function 'pcpu_dump_alloc_info': mm/percpu.c:1460:9: warning: format '%zu' expects type 'size_t', but argument 3 has type 'long unsigned int' mm/percpu.c:1460:9: warning: format '%zu' expects type 'size_t', but argument 4 has type 'long unsigned int' mm/percpu.c:1460:9: warning: format '%zu' expects type 'size_t', but argument 5 has type 'long unsigned int' mm/percpu.c:1460:9: warning: format '%zu' expects type 'size_t', but argument 6 has type 'long unsigned int' mm/percpu.c:1460:9: warning: format '%zu' expects type 'size_t', but argument 7 has type 'long unsigned int' mm/percpu.c:1460:9: warning: format '%zu' expects type 'size_t', but argument 8 has type 'long unsigned int' -- mm/dmapool.c: In function 'show_pools': >> mm/dmapool.c:99:6: warning: format '%4Zu' expects type 'size_t', but argument 6 has type 'long unsigned int' mm/dmapool.c:99:6: warning: format '%4Zu' expects type 'size_t', but argument 7 has type 'long unsigned int' -- net/core/dev_ioctl.c: In function 'dev_ifsioc_locked': >> net/core/dev_ioctl.c:149:11: warning: comparison of distinct pointer types lacks a cast net/core/dev_ioctl.c: In function 'dev_ifsioc': net/core/dev_ioctl.c:270:10: warning: comparison of distinct pointer types lacks a cast -- net/sunrpc/xprtsock.c: In function 'bc_malloc': >> net/sunrpc/xprtsock.c:2553:3: warning: format '%zu' expects type 'size_t', but argument 4 has type 'long unsigned int' .. vim +1062 crypto/drbg.c 541af946 Stephan Mueller 2014-05-31 1046 * 541af946 Stephan Mueller 2014-05-31 1047 * return: 541af946 Stephan Mueller 2014-05-31 1048 * 0 on success 541af946 Stephan Mueller 2014-05-31 1049 * error value otherwise 541af946 Stephan Mueller 2014-05-31 1050 */ 541af946 Stephan Mueller 2014-05-31 1051 static int drbg_seed(struct drbg_state *drbg, struct drbg_string *pers, 541af946 Stephan Mueller 2014-05-31 1052 bool reseed) 541af946 Stephan Mueller 2014-05-31 1053 { 57225e67 Stephan Mueller 2015-06-09 1054 int ret; 57225e67 Stephan Mueller 2015-06-09 1055 unsigned char entropy[((32 + 16) * 2)]; 57225e67 Stephan Mueller 2015-06-09 1056 unsigned int entropylen = drbg_sec_strength(drbg->core->flags); 541af946 Stephan Mueller 2014-05-31 1057 struct drbg_string data1; 8c987166 Stephan Mueller 2014-06-28 1058 LIST_HEAD(seedlist); 541af946 Stephan Mueller 2014-05-31 1059 541af946 Stephan Mueller 2014-05-31 1060 /* 9.1 / 9.2 / 9.3.1 step 3 */ 541af946 Stephan Mueller 2014-05-31 1061 if (pers && pers->len > (drbg_max_addtl(drbg))) { a9089571 Stephan Mueller 2014-07-06 @1062 pr_devel("DRBG: personalization string too long %zu\n", 541af946 Stephan Mueller 2014-05-31 1063 pers->len); 541af946 Stephan Mueller 2014-05-31 1064 return -EINVAL; 541af946 Stephan Mueller 2014-05-31 1065 } 541af946 Stephan Mueller 2014-05-31 1066 8fded592 Herbert Xu 2015-04-21 1067 if (list_empty(&drbg->test_data.list)) { 8fded592 Herbert Xu 2015-04-21 1068 drbg_string_fill(&data1, drbg->test_data.buf, 8fded592 Herbert Xu 2015-04-21 1069 drbg->test_data.len); 541af946 Stephan Mueller 2014-05-31 1070 pr_devel("DRBG: using test entropy\n"); :::::: The code at line 1062 was first introduced by commit :::::: a9089571f2fc203c3ba6595a60f0045f048494da crypto: drbg - Fix format string for debugging statements :::::: TO: Stephan Mueller :::::: CC: Herbert Xu --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation