In Linux kernel, we get that message 2 times (in x86_64 allmodconfig):
../fs/exofs/ore_raid.c:95:64: warning: division by zero
../fs/exofs/ore_raid.c:116:36: warning: division by zero
when dividing by variable sizeof_a1pa, where that is:
const unsigned sizeof__a1pa = sizeof(_aab->__a1pa[0]);
which is in this struct:
struct _alloc_all_bytes {
struct __alloc_stripe_pages_2d {
struct __stripe_pages_2d sp2d;
struct __1_page_stripe _1p_stripes[pages_in_unit];
} __asp2d;
struct __alloc_1p_arrays {
struct page *pages[group_width];
struct page *scribble[group_width];
char page_is_read[data_devs];
} __a1pa[pages_in_unit];
} *_aab;
where 'pages_in_unit' is a function parameter. So, yes, it could have a value
of zero.
Is the warning message considered correct or useful as is? If so, OK, no problem.
Although I would rather see something more like:
warning: variable length array on stack
thanks,
--
~Randy
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