3.18-stable review patch.  If anyone has any objections, please let me know.

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

From: Dmitry V. Levin <l...@altlinux.org>

commit 745cb7f8a5de0805cade3de3991b7a95317c7c73 upstream.

Replace MAX_ADDR_LEN with its numeric value to fix the following
linux/packet_diag.h userspace compilation error:

/usr/include/linux/packet_diag.h:67:17: error: 'MAX_ADDR_LEN' undeclared here 
(not in a function)
  __u8 pdmc_addr[MAX_ADDR_LEN];

This is not the first case in the UAPI where the numeric value
of MAX_ADDR_LEN is used instead of symbolic one, uapi/linux/if_link.h
already does the same:

$ grep MAX_ADDR_LEN include/uapi/linux/if_link.h
        __u8 mac[32]; /* MAX_ADDR_LEN */

There are no UAPI headers besides these two that use MAX_ADDR_LEN.

Signed-off-by: Dmitry V. Levin <l...@altlinux.org>
Acked-by: Pavel Emelyanov <xe...@virtuozzo.com>
Signed-off-by: David S. Miller <da...@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gre...@linuxfoundation.org>

---
 include/uapi/linux/packet_diag.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/include/uapi/linux/packet_diag.h
+++ b/include/uapi/linux/packet_diag.h
@@ -64,7 +64,7 @@ struct packet_diag_mclist {
        __u32   pdmc_count;
        __u16   pdmc_type;
        __u16   pdmc_alen;
-       __u8    pdmc_addr[MAX_ADDR_LEN];
+       __u8    pdmc_addr[32]; /* MAX_ADDR_LEN */
 };
 
 struct packet_diag_ring {


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