net: dsa: tag_qca: fix wrong MGMT_DATA2 size

It was discovered that MGMT_DATA2 can contain up to 28 bytes of data
instead of the 12 bytes written in the Documentation by accounting the
limit of 16 bytes declared in Documentation subtracting the first 4 byte
in the packet header.

Update the define with the real world value.

Tested-by: Ronald Wahl <ronald.wahl@raritan.com>
Fixes: c2ee8181fddb ("net: dsa: tag_qca: add define for handling mgmt Ethernet packet")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Cc: stable@vger.kernel.org # v5.18+
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/dsa/tag_qca.h b/include/linux/dsa/tag_qca.h
index b1b5720d89a596d12eb5cbe9591d0e9e3c5bf918..ee657452f122a867a011980567c08db7b97d7e4c 100644 (file)
--- a/include/linux/dsa/tag_qca.h
+++ b/include/linux/dsa/tag_qca.h
@@ -45,8 +45,8 @@ struct sk_buff;
                                        QCA_HDR_MGMT_COMMAND_LEN + \
                                        QCA_HDR_MGMT_DATA1_LEN)
 
-#define QCA_HDR_MGMT_DATA2_LEN         12 /* Other 12 byte for the mdio data */
-#define QCA_HDR_MGMT_PADDING_LEN       34 /* Padding to reach the min Ethernet packet */
+#define QCA_HDR_MGMT_DATA2_LEN         28 /* Other 28 byte for the mdio data */
+#define QCA_HDR_MGMT_PADDING_LEN       18 /* Padding to reach the min Ethernet packet */
 
 #define QCA_HDR_MGMT_PKT_LEN           (QCA_HDR_MGMT_HEADER_LEN + \
                                        QCA_HDR_LEN + \