Commit e512fcf0 authored by Gustavo A. R. Silva's avatar Gustavo A. R. Silva Committed by David S. Miller

net: sched: cls_u32: use struct_size() helper

Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes, in particular in the
context in which this code is being used.

So, replace code of the following form:

sizeof(*s) + s->nkeys*sizeof(struct tc_u32_key)

with:

struct_size(s, keys, s->nkeys)

This code was detected with the help of Coccinelle.
Signed-off-by: default avatarGustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 141b6b2a
......@@ -847,7 +847,7 @@ static struct tc_u_knode *u32_init_knode(struct net *net, struct tcf_proto *tp,
/* Similarly success statistics must be moved as pointers */
new->pcpu_success = n->pcpu_success;
#endif
memcpy(&new->sel, s, sizeof(*s) + s->nkeys*sizeof(struct tc_u32_key));
memcpy(&new->sel, s, struct_size(s, keys, s->nkeys));
if (tcf_exts_init(&new->exts, net, TCA_U32_ACT, TCA_U32_POLICE)) {
kfree(new);
......
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