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can: Remove SKB list assumptions in rx-offload.c 

Eliminate code which assumes that SKBs and skb_queue_head objects
can be cast to eachother during list processing.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2018-08-22 16:43:34 -07:00
parent 992cba7e27
commit 6effee6840
1 changed files with 5 additions and 3 deletions
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8
drivers/net/can/rx-offload.c
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@ -79,7 +79,7 @@ static int can_rx_offload_napi_poll(struct napi_struct *napi, int quota)
static inline void __skb_queue_add_sort(struct sk_buff_head *head, struct sk_buff *new,
int (*compare)(struct sk_buff *a, struct sk_buff *b))
{
struct sk_buff *pos, *insert = (struct sk_buff *)head;
struct sk_buff *pos, *insert = NULL;
skb_queue_reverse_walk(head, pos) {
const struct can_rx_offload_cb *cb_pos, *cb_new;
@ -99,8 +99,10 @@ static inline void __skb_queue_add_sort(struct sk_buff_head *head, struct sk_buf
insert = pos;
break;
}
__skb_queue_after(head, insert, new);
if (!insert)
__skb_queue_head(head, new);
else
__skb_queue_after(head, insert, new);
}
static int can_rx_offload_compare(struct sk_buff *a, struct sk_buff *b)