[PATCH] IPMI: retry messages on certain error returns

Some more errors from the IPMI send message command are retryable, but are not
being retried by the IPMI code.  Make sure they get retried.
Signed-off-by: Corey Minyard <minyard@acm.org>
Cc: Frederic Lelievre <Frederic.Lelievre@ca.kontron.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/char/ipmi/ipmi_msghandler.c

@@ -3242,7 +3242,9 @@ void ipmi_smi_msg_received(ipmi_smi_t          intf,
                    report the error immediately. */
 		if ((msg->rsp_size >= 3) && (msg->rsp[2] != 0)
 		    && (msg->rsp[2] != IPMI_NODE_BUSY_ERR)
-		    && (msg->rsp[2] != IPMI_LOST_ARBITRATION_ERR))
+		    && (msg->rsp[2] != IPMI_LOST_ARBITRATION_ERR)
+		    && (msg->rsp[2] != IPMI_BUS_ERR)
+		    && (msg->rsp[2] != IPMI_NAK_ON_WRITE_ERR))
 		{
 			int chan = msg->rsp[3] & 0xf;
 

include/linux/ipmi_msgdefs.h

@@ -75,6 +75,8 @@
 #define IPMI_INVALID_COMMAND_ERR	0xc1
 #define IPMI_ERR_MSG_TRUNCATED		0xc6
 #define IPMI_LOST_ARBITRATION_ERR	0x81
+#define IPMI_BUS_ERR			0x82
+#define IPMI_NAK_ON_WRITE_ERR		0x83
 #define IPMI_ERR_UNSPECIFIED		0xff
 
 #define IPMI_CHANNEL_PROTOCOL_IPMB	1