Revert "ax25: add link layer header validation function"

This reverts commit ea47781c26510e5d97f80f9aceafe9065bd5e3aa, which was
commit ea47781c26510e5d97f80f9aceafe9065bd5e3aa upstream.  It is
pointless unless af_packet calls the new function.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

diff --git a/net/ax25/ax25_ip.c b/net/ax25/ax25_ip.c
index 5ee8c6fc1a7557404d214173f7a6fe078045f159..67de6b33f2c309ad4426b2075b1bd16d8ce27e11 100644 (file)
--- a/net/ax25/ax25_ip.c
+++ b/net/ax25/ax25_ip.c
@@ -231,24 +231,9 @@ int ax25_rebuild_header(struct sk_buff *skb)
 
 #endif
 
-static bool ax25_validate_header(const char *header, unsigned int len)
-{
-       ax25_digi digi;
-
-       if (!len)
-               return false;
-
-       if (header[0])
-               return true;
-
-       return ax25_addr_parse(header + 1, len - 1, NULL, NULL, &digi, NULL,
-                              NULL);
-}
-
 const struct header_ops ax25_header_ops = {
        .create = ax25_hard_header,
        .rebuild = ax25_rebuild_header,
-       .validate = ax25_validate_header,
 };
 
 EXPORT_SYMBOL(ax25_hard_header);