Re: [PATCH] ipv4: raw: fix icmp_filter()

From: Eric Dumazet <redacted>
Date: Sat, 22 Sep 2012 12:08:29 +0200

From: Eric Dumazet <edumazet@google.com>

icmp_filter() should not modify its input, or else its caller
would need to recompute ip_hdr() if skb->head is reallocated.

Use skb_header_pointer() instead of pskb_may_pull() and
change the prototype to make clear both sk and skb are const.

Signed-off-by: Eric Dumazet <edumazet@google.com>

Applied and queued up for -stable, thanks Eric.