On 2/7/19 4:59 PM, Eric Anholt wrote:
"Gustavo A. R. Silva" gustavo@embeddedor.com writes:
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example:
struct foo { int stuff; void *entry[]; };
instance = kzalloc(sizeof(struct foo) + count * sizeof(struct boo), GFP_KERNEL);
Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper:
instance = kzalloc(struct_size(instance, entry, count), GFP_KERNEL);
This code was detected with the help of Coccinelle.
Signed-off-by: Gustavo A. R. Silva gustavo@embeddedor.com
Reviewed and pushed to drm-misc-next. Thanks!
Thank you, Eric.
-- Gustavo