errorlog: endian conversion

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>

core/errorlog.c

@@ -93,10 +93,10 @@ void log_add_section(struct errorlog *buf, uint32_t tag)
 	tmp = (struct elog_user_data_section *)(buf->user_data_dump +
 						buf->user_section_size);
 	/* Use DESC if no other tag provided */
-	tmp->tag = tag ? tag : 0x44455343;
-	tmp->size = size;
+	tmp->tag = tag ? cpu_to_be32(tag) : cpu_to_be32(0x44455343);
+	tmp->size = cpu_to_be16(size);
 
-	buf->user_section_size += tmp->size;
+	buf->user_section_size += size;
 	buf->user_section_count++;
 }
 
@@ -133,6 +133,7 @@ void log_append_data(struct errorlog *buf, unsigned char *data, uint16_t size)
 	struct elog_user_data_section *section;
 	uint8_t n_sections;
 	char *buffer;
+	uint16_t ssize;
 
 	if (!buf) {
 		prerror("ELOG: Cannot update user data. Buffer is invalid\n");
@@ -154,13 +155,14 @@ void log_append_data(struct errorlog *buf, unsigned char *data, uint16_t size)
 
 	while (--n_sections) {
 		section = (struct elog_user_data_section *)buffer;
-		buffer += section->size;
+		buffer += be16_to_cpu(section->size);
 	}
 
 	section = (struct elog_user_data_section *)buffer;
-	buffer += section->size;
+	ssize = be16_to_cpu(section->size);
+	buffer += ssize;
 	memcpy(buffer, data, size);
-	section->size += size;
+	section->size = cpu_to_be16(ssize + size);
 	buf->user_section_size += size;
 }
 

core/pel.c

@@ -211,16 +211,19 @@ static void create_user_defined_section(struct errorlog *elog_data,
 		opal_usr_data = (struct elog_user_data_section *)opal_buf;
 
 		usrhdr->v6header.id = ELOG_SID_USER_DEFINED;
+		usrhdr->v6header.length = cpu_to_be16(
+					sizeof(struct opal_v6_header) +
+					be16_to_cpu(opal_usr_data->size));
 		usrhdr->v6header.version = OPAL_ELOG_VERSION;
 		usrhdr->v6header.length = sizeof(struct opal_v6_header) +
 							opal_usr_data->size;
 		usrhdr->v6header.subtype = OPAL_ELOG_SST;
 		usrhdr->v6header.component_id = elog_data->component_id;
 
-		memcpy(usrhdr->dump, opal_buf, opal_usr_data->size);
+		memcpy(usrhdr->dump, opal_buf, be16_to_cpu(opal_usr_data->size));
 		*pel_offset += usrhdr->v6header.length;
 		dump += usrhdr->v6header.length;
-		opal_buf += opal_usr_data->size;
+		opal_buf += be16_to_cpu(opal_usr_data->size);
 		privhdr->section_count++;
 	}
 }
@@ -233,10 +236,12 @@ static size_t pel_user_section_size(struct errorlog *elog_data)
 	struct elog_user_data_section *opal_usr_data;
 
 	for (i = 0; i < elog_data->user_section_count; i++) {
+		u16 s;
+
 		opal_usr_data = (struct elog_user_data_section *)opal_buf;
-		total += sizeof(struct opal_v6_header) +
-			opal_usr_data->size;
-		opal_buf += opal_usr_data->size;
+		s = be16_to_cpu(opal_usr_data->size);
+		total += sizeof(struct opal_v6_header) + s;
+		opal_buf += s;
 	}
 
 	return total;

include/errorlog.h

@@ -94,19 +94,19 @@
 #define ORG_POWERNV	2
 
 /* Multiple user data sections */
-struct __attribute__((__packed__))elog_user_data_section {
-	uint32_t tag;
-	uint16_t size;
-	uint16_t component_id;
+struct elog_user_data_section {
+	__be32 tag;
+	__be16 size;
+	__be16 component_id;
 	char data_dump[1];
-};
+} __packed;
 
 /*
  * All the information regarding an error/event to be reported
  * needs to populate this structure using pre-defined interfaces
  * only
  */
-struct __attribute__((__packed__)) __attribute__ ((aligned (8))) errorlog {
+struct errorlog {
 
 	uint16_t component_id;
 	uint8_t error_event_type;