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| author | David S. Miller <davem@davemloft.net> | 2018-08-23 01:43:34 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-09-10 19:06:54 +0200 |
| commit | 6effee6840af7d1adfde296f987b3d3213b3037d (patch) | |
| tree | e378db8ce667317888636d2ea2b1c3492e9d190f /drivers/net/can/rx-offload.c | |
| parent | net: Add and use skb_list_del_init(). (diff) | |
| download | linux-6effee6840af7d1adfde296f987b3d3213b3037d.tar.xz linux-6effee6840af7d1adfde296f987b3d3213b3037d.zip | |
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>
Diffstat (limited to 'drivers/net/can/rx-offload.c')
| -rw-r--r-- | drivers/net/can/rx-offload.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/net/can/rx-offload.c b/drivers/net/can/rx-offload.c index d94dae216820..c7d05027a7a0 100644 --- a/drivers/net/can/rx-offload.c +++ b/drivers/net/can/rx-offload.c @@ -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) |