linux-kernel - [PATCH 3.16 001/114] Revert "ax25: add link layer header validation function"

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Date:	Mon, 13 Jun 2016 19:36:37 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:	akpm@...ux-foundation.org
Subject: [PATCH 3.16 001/114] Revert "ax25: add link layer header
 validation function"

3.16.36-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <ben@...adent.org.uk>

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@...adent.org.uk>
---
 net/ax25/ax25_ip.c | 15 ---------------
 1 file changed, 15 deletions(-)

--- a/net/ax25/ax25_ip.c
+++ b/net/ax25/ax25_ip.c
@@ -231,24 +231,9 @@ int ax25_rebuild_header(struct sk_buff *
 
 #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);