From: Eric Dumazet <eduma...@google.com>
Commit 5640f7685831 ("net: use a per task frag allocator")
accidentally contained an unrelated change to net/ipv4/raw.c,
later committed (without the pr_err() debugging bits) in
net tree as commit ab43ed8b749 (ipv4: raw: fix icmp_filter())
This patch reverts this glitch, noticed by Stephen Rothwell.
Reported-by: Stephen Rothwell <s...@canb.auug.org.au>
Signed-off-by: Eric Dumazet <eduma...@google.com>
---
net/ipv4/raw.c | 19 +++++++------------
1 file changed, 7 insertions(+), 12 deletions(-)
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index a80740b..f242578 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -131,23 +131,18 @@ found:
* 0 - deliver
* 1 - block
*/
-static int icmp_filter(const struct sock *sk, const struct sk_buff *skb)
+static __inline__ int icmp_filter(struct sock *sk, struct sk_buff *skb)
{
- struct icmphdr _hdr;
- const struct icmphdr *hdr;
-
- pr_err("icmp_filter skb_transport_offset %d data-head %ld len %d/%d\n",
- skb_transport_offset(skb), skb->data - skb->head, skb->len,
skb->data_len);
- hdr = skb_header_pointer(skb, skb_transport_offset(skb),
- sizeof(_hdr), &_hdr);
- pr_err("head %p data %p hdr %p type %d\n", skb->head, skb->data, hdr,
hdr ? hdr->type : -1);
- if (!hdr)
+ int type;
+
+ if (!pskb_may_pull(skb, sizeof(struct icmphdr)))
return 1;
- if (hdr->type < 32) {
+ type = icmp_hdr(skb)->type;
+ if (type < 32) {
__u32 data = raw_sk(sk)->filter.data;
- return ((1U << hdr->type) & data) != 0;
+ return ((1 << type) & data) != 0;
}
/* Do not block unknown ICMP types */
--
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