edac: Cleanup the logs for i7core and sb edac drivers

Remove some information that it is duplicated at the MCE log,
and don't have much usage for the error. Those data will be
added again, when creating a trace function that outputs both
memory errors and MCE fields.

Cc: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/edac/i7core_edac.c

@@ -1623,7 +1623,7 @@ static void i7core_mce_output_error(struct mem_ctl_info *mci,
 				    const struct mce *m)
 {
 	struct i7core_pvt *pvt = mci->pvt_info;
-	char *type, *optype, *err, *msg;
+	char *type, *optype, *err, msg[80];
 	enum hw_event_mc_err_type tp_event;
 	unsigned long error = m->status & 0x1ff0000l;
 	bool uncorrected_error = m->mcgstatus & 1ll << 61;
@@ -1701,10 +1701,7 @@ static void i7core_mce_output_error(struct mem_ctl_info *mci,
 		err = "unknown";
 	}
 
-	msg = kasprintf(GFP_ATOMIC,
-		"addr=0x%08llx cpu=%d count=%d Err=%08llx:%08llx (%s: %s))\n",
-		(long long) m->addr, m->cpu, core_err_cnt,
-		(long long)m->status, (long long)m->misc, optype, err);
+	snprintf(msg, sizeof(msg), "count=%d %s", core_err_cnt, optype);
 
 	/*
 	 * Call the helper to output message
@@ -1718,8 +1715,6 @@ static void i7core_mce_output_error(struct mem_ctl_info *mci,
 				     syndrome,
 				     channel, dimm, -1,
 				     err, msg, m);
-
-	kfree(msg);
 }
 
 /*

drivers/edac/sb_edac.c

@@ -788,7 +788,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 				 u8 *socket,
 				 long *channel_mask,
 				 u8 *rank,
-				 char *area_type, char *msg)
+				 char **area_type, char *msg)
 {
 	struct mem_ctl_info	*new_mci;
 	struct sbridge_pvt *pvt = mci->pvt_info;
@@ -843,7 +843,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 		sprintf(msg, "Can't discover the memory socket");
 		return -EINVAL;
 	}
-	area_type = get_dram_attr(reg);
+	*area_type = get_dram_attr(reg);
 	interleave_mode = INTERLEAVE_MODE(reg);
 
 	pci_read_config_dword(pvt->pci_sad0, interleave_list[n_sads],
@@ -1342,7 +1342,7 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
 	struct mem_ctl_info *new_mci;
 	struct sbridge_pvt *pvt = mci->pvt_info;
 	enum hw_event_mc_err_type tp_event;
-	char *type, *optype, msg[256], *recoverable_msg;
+	char *type, *optype, msg[256];
 	bool ripv = GET_BITFIELD(m->mcgstatus, 0, 0);
 	bool overflow = GET_BITFIELD(m->status, 62, 62);
 	bool uncorrected_error = GET_BITFIELD(m->status, 61, 61);
@@ -1355,7 +1355,7 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
 	long channel_mask, first_channel;
 	u8  rank, socket;
 	int rc, dimm;
-	char *area_type = "Unknown";
+	char *area_type = NULL;
 
 	if (uncorrected_error) {
 		if (ripv) {
@@ -1407,7 +1407,7 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
 	}
 
 	rc = get_memory_error_data(mci, m->addr, &socket,
-				   &channel_mask, &rank, area_type, msg);
+				   &channel_mask, &rank, &area_type, msg);
 	if (rc < 0)
 		goto err_parsing;
 	new_mci = get_mci_for_node_id(socket);
@@ -1427,29 +1427,23 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
 	else
 		dimm = 2;
 
-	if (uncorrected_error && recoverable)
-		recoverable_msg = " recoverable";
-	else
-		recoverable_msg = "";
 
 	/*
-	 * FIXME: What should we do with "channel" information on mcelog?
-	 * Probably, we can just discard it, as the channel information
-	 * comes from the get_memory_error_data() address decoding
+	 * FIXME: On some memory configurations (mirror, lockstep), the
+	 * Memory Controller can't point the error to a single DIMM. The
+	 * EDAC core should be handling the channel mask, in order to point
+	 * to the group of dimm's where the error may be happening.
 	 */
 	snprintf(msg, sizeof(msg),
-			"%d error(s)%s: %s%s: cpu=%d Err=%04x:%04x addr = 0x%08llx socket=%d Channel=%ld(mask=%ld), rank=%d\n",
-			core_err_cnt,
-			overflow ? " OVERFLOW" : "",
-			area_type,
-			recoverable_msg,
-			m->cpu,
-			mscod, errcode,
-			(long long) m->addr,
-			socket,
-			first_channel,		/* This is the real channel on SB */
-			channel_mask,
-			rank);
+		 "count:%d%s%s area:%s err_code:%04x:%04x socket:%d channel_mask:%ld rank:%d",
+		 core_err_cnt,
+		 overflow ? " OVERFLOW" : "",
+		 (uncorrected_error && recoverable) ? " recoverable" : "",
+		 area_type,
+		 mscod, errcode,
+		 socket,
+		 channel_mask,
+		 rank);
 
 	debugf0("%s", msg);