> > I do not know if this is old or new, just noticed it scrolling by while > > compiling current 4.12+git on 32-bit x86. > > Which version of compiler?
gcc version 6.4.0 20170704 (Debian 6.4.0-1) After "touch fs/fat/namei_vfat.c" it appears consitently for me. Debian unstable, up to date. > Well, latest change of namei_vfat.c is Sep, 2016. And I can't reproduce > it by "gcc version 6.3.0 20170516 (Debian 6.3.0-18)". > > > CC [M] fs/fat/namei_vfat.o > > In file included from ./arch/x86/include/asm/string.h:2:0, > > from ./include/linux/string.h:18, > > from ./include/linux/bitmap.h:8, > > from ./include/linux/cpumask.h:11, > > from ./arch/x86/include/asm/cpumask.h:4, > > from ./arch/x86/include/asm/msr.h:10, > > from ./arch/x86/include/asm/processor.h:20, > > from ./arch/x86/include/asm/cpufeature.h:4, > > from ./arch/x86/include/asm/thread_info.h:52, > > from ./include/linux/thread_info.h:37, > > from ./arch/x86/include/asm/preempt.h:6, > > from ./include/linux/preempt.h:80, > > from ./include/linux/spinlock.h:50, > > from ./include/linux/seqlock.h:35, > > from ./include/linux/time.h:5, > > from ./include/linux/stat.h:18, > > from ./include/linux/module.h:10, > > from fs/fat/namei_vfat.c:18: > > fs/fat/namei_vfat.c: In function ‘vfat_add_entry’: > > ./arch/x86/include/asm/string_32.h:74:16: warning: array subscript is above > > array bounds [-Warray-bounds] > > *((char *)to + 4) = *((char *)from + 4); > > ~~~~~~~~~~~~^~~~ > > ./arch/x86/include/asm/string_32.h:74:16: warning: array subscript is above > > array bounds [-Warray-bounds] > > ./arch/x86/include/asm/string_32.h:78:17: warning: array subscript is above > > array bounds [-Warray-bounds] > > *((short *)to + 2) = *((short *)from + 2); > > ~~~~~~~~~~~~~^~~~ > > ./arch/x86/include/asm/string_32.h:78:17: warning: array subscript is above > > array bounds [-Warray-bounds] > > ./arch/x86/include/asm/string_32.h:82:15: warning: array subscript is above > > array bounds [-Warray-bounds] > > *((int *)to + 1) = *((int *)from + 1); > > ~~~~~~~~~~~^~~~ > > ./arch/x86/include/asm/string_32.h:82:15: warning: array subscript is above > > array bounds [-Warray-bounds] > > -- Meelis Roos (mr...@linux.ee)
