"Gustavo A. R. Silva" <[email protected]> wrote: > 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 ieee80211_regdomain { > ... > struct ieee80211_reg_rule reg_rules[]; > }; > > instance = kzalloc(sizeof(*mac->rd) + > sizeof(struct ieee80211_reg_rule) * > count, 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, reg_rules, count), GFP_KERNEL); > > This code was detected with the help of Coccinelle. > > Signed-off-by: Gustavo A. R. Silva <[email protected]> > Reviewed-by: Sergey Matyukevich <[email protected]>
Patch applied to wireless-drivers-next.git, thanks. 9a1ace64ca3b qtnfmac: Use struct_size() in kzalloc() -- https://patchwork.kernel.org/patch/10982675/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
