tree: https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git testing/warray-bounds head: 4695107c157dd670a5fc1b1d3ccbfdc440caca24 commit: 06f7d86a7f517e6ce30162d18a7eef3ed192282a [1/10] Makefile: Enable -Warray-bounds config: alpha-randconfig-r032-20210414 (attached as .config) compiler: alpha-linux-gcc (GCC) 9.3.0 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/gustavoars/linux.git/commit/?id=06f7d86a7f517e6ce30162d18a7eef3ed192282a git remote add gustavoars-linux https://git.kernel.org/pub/scm/linux/kernel/git/gustavoars/linux.git git fetch --no-tags gustavoars-linux testing/warray-bounds git checkout 06f7d86a7f517e6ce30162d18a7eef3ed192282a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=alpha
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All warnings (new ones prefixed by >>): In file included from include/linux/string.h:21, from include/linux/bitmap.h:10, from include/linux/cpumask.h:12, from include/linux/smp.h:13, from include/linux/lockdep.h:14, from include/linux/rcupdate.h:29, from include/linux/rculist.h:11, from include/linux/pid.h:5, from include/linux/sched.h:14, from include/linux/ratelimit.h:6, from include/linux/dev_printk.h:16, from include/linux/device.h:15, from include/linux/gpio/driver.h:5, from drivers/hid/hid-cp2112.c:21: In function 'cp2112_hid_get', inlined from 'pstr_show' at drivers/hid/hid-cp2112.c:989:8: >> arch/alpha/include/asm/string.h:22:16: warning: '__builtin_memcpy' offset >> [3, 64] from the object at 'report' is out of the bounds of referenced >> subobject 'report' with type 'unsigned char' at offset 1 [-Warray-bounds] 22 | #define memcpy __builtin_memcpy drivers/hid/hid-cp2112.c:333:2: note: in expansion of macro 'memcpy' 333 | memcpy(data, buf, count); | ^~~~~~ vim +22 arch/alpha/include/asm/string.h ^1da177e4c3f41 include/asm-alpha/string.h Linus Torvalds 2005-04-16 21 ^1da177e4c3f41 include/asm-alpha/string.h Linus Torvalds 2005-04-16 @22 #define memcpy __builtin_memcpy ^1da177e4c3f41 include/asm-alpha/string.h Linus Torvalds 2005-04-16 23 :::::: The code at line 22 was first introduced by commit :::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2 :::::: TO: Linus Torvalds <[email protected]> :::::: CC: Linus Torvalds <[email protected]> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
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