tree: git://anongit.freedesktop.org/drm/drm-tip drm-tip head: e1973de2c4516e9130157e538014e79c8aa57b41 commit: a59bb8e436a090adb48ed2723fd6864cd82bf8c8 [4/6] Merge remote-tracking branch 'drm-intel/drm-intel-gt-next' into drm-tip config: i386-buildonly-randconfig-005-20230924 (https://download.01.org/0day-ci/archive/20230924/202309240849.DfoxxSha-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230924/202309240849.DfoxxSha-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202309240849.DfoxxSha-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from arch/x86/include/asm/string.h:3, from include/linux/string.h:20, from arch/x86/include/asm/page_32.h:18, from arch/x86/include/asm/page.h:14, from arch/x86/include/asm/thread_info.h:12, from include/linux/thread_info.h:60, from arch/x86/include/asm/preempt.h:9, from include/linux/preempt.h:79, from include/linux/rcupdate.h:27, 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/pm_runtime.h:11, from drivers/gpu/drm/i915/gt/intel_rc6.c:6: In function 'rc6_res_reg_init', inlined from 'intel_rc6_init' at drivers/gpu/drm/i915/gt/intel_rc6.c:610:2: >> arch/x86/include/asm/string_32.h:195:29: warning: '__builtin_memset' writing 16 bytes into a region of size 0 overflows the destination [-Wstringop-overflow=] 195 | #define memset(s, c, count) __builtin_memset(s, c, count) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/gt/intel_rc6.c:584:9: note: in expansion of macro 'memset' 584 | memset(rc6->res_reg, INVALID_MMIO_REG.reg, sizeof(rc6->res_reg)); | ^~~~~~ vim +/__builtin_memset +195 arch/x86/include/asm/string_32.h ^1da177e4c3f41 include/asm-i386/string.h Linus Torvalds 2005-04-16 186 ^1da177e4c3f41 include/asm-i386/string.h Linus Torvalds 2005-04-16 187 #define __memset(s, c, count) \ 78d64fc21d2aa4 include/asm-x86/string_32.h Joe Perches 2008-05-12 188 (__builtin_constant_p(count) \ 78d64fc21d2aa4 include/asm-x86/string_32.h Joe Perches 2008-05-12 189 ? __constant_count_memset((s), (c), (count)) \ 78d64fc21d2aa4 include/asm-x86/string_32.h Joe Perches 2008-05-12 190 : __memset_generic((s), (c), (count))) ^1da177e4c3f41 include/asm-i386/string.h Linus Torvalds 2005-04-16 191 ^1da177e4c3f41 include/asm-i386/string.h Linus Torvalds 2005-04-16 192 #define __HAVE_ARCH_MEMSET 6974f0c4555e28 arch/x86/include/asm/string_32.h Daniel Micay 2017-07-12 193 extern void *memset(void *, int, size_t); 6974f0c4555e28 arch/x86/include/asm/string_32.h Daniel Micay 2017-07-12 194 #ifndef CONFIG_FORTIFY_SOURCE ff60fab71bb3b4 arch/x86/include/asm/string_32.h Arjan van de Ven 2009-09-28 @195 #define memset(s, c, count) __builtin_memset(s, c, count) 6974f0c4555e28 arch/x86/include/asm/string_32.h Daniel Micay 2017-07-12 196 #endif /* !CONFIG_FORTIFY_SOURCE */ ^1da177e4c3f41 include/asm-i386/string.h Linus Torvalds 2005-04-16 197 :::::: The code at line 195 was first introduced by commit :::::: ff60fab71bb3b4fdbf8caf57ff3739ffd0887396 x86: Use __builtin_memset and __builtin_memcpy for memset/memcpy :::::: TO: Arjan van de Ven <arjan@xxxxxxxxxxxxx> :::::: CC: H. Peter Anvin <hpa@xxxxxxxxx> -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
