On 05/08/2018 05:42 PM, Kees Cook wrote:
This is a stab at providing three new helpers for allocation size calculation: struct_size(), array_size(), and array3_size(). These are implemented on top of Rasmus's overflow checking functions, and the last 8 patches are all treewide conversions of open-coded multiplications into the various combinations of the helper functions. -Kees
Obvious question (that might indicate this deserves documentation?) What's the difference between kmalloc_array(cnt, sizeof(struct blah), GFP_KERNEL); and kmalloc(array_size(cnt, struct blah), GFP_KERNEL); and when would you use one over the other? Thanks, Laura
