s390/ipl: make ipl_info less confusing

The ipl_info union in struct ipl_parameter_block has the same name as
the struct ipl_info. This does not help while reading the code and the
union in struct ipl_parameter_block does not need to be named. Drop
the name from the union.
Reviewed-by: Hendrik Brueckner <brueckner@linux.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

arch/s390/boot/ipl_parm.c

@@ -71,26 +71,26 @@ static size_t ipl_block_get_ascii_scpdata(char *dest, size_t size,
 	size_t i;
 	int has_lowercase;
 
-	count = min(size - 1, scpdata_length(ipb->ipl_info.fcp.scp_data,
-					     ipb->ipl_info.fcp.scp_data_len));
+	count = min(size - 1, scpdata_length(ipb->fcp.scp_data,
+					     ipb->fcp.scp_data_len));
 	if (!count)
 		goto out;
 
 	has_lowercase = 0;
 	for (i = 0; i < count; i++) {
-		if (!isascii(ipb->ipl_info.fcp.scp_data[i])) {
+		if (!isascii(ipb->fcp.scp_data[i])) {
 			count = 0;
 			goto out;
 		}
-		if (!has_lowercase && islower(ipb->ipl_info.fcp.scp_data[i]))
+		if (!has_lowercase && islower(ipb->fcp.scp_data[i]))
 			has_lowercase = 1;
 	}
 
 	if (has_lowercase)
-		memcpy(dest, ipb->ipl_info.fcp.scp_data, count);
+		memcpy(dest, ipb->fcp.scp_data, count);
 	else
 		for (i = 0; i < count; i++)
-			dest[i] = tolower(ipb->ipl_info.fcp.scp_data[i]);
+			dest[i] = tolower(ipb->fcp.scp_data[i]);
 out:
 	dest[count] = '\0';
 	return count;
@@ -239,7 +239,7 @@ void setup_memory_end(void)
 #ifdef CONFIG_CRASH_DUMP
 	if (!OLDMEM_BASE && ipl_block_valid &&
 	    ipl_block.hdr.pbt == DIAG308_IPL_TYPE_FCP &&
-	    ipl_block.ipl_info.fcp.opt == DIAG308_IPL_OPT_DUMP) {
+	    ipl_block.fcp.opt == DIAG308_IPL_OPT_DUMP) {
 		if (!sclp_early_get_hsa_size(&memory_end) && memory_end)
 			memory_end_set = 1;
 	}

arch/s390/include/asm/ipl.h

@@ -78,7 +78,7 @@ struct ipl_parameter_block {
 		struct ipl_block_fcp fcp;
 		struct ipl_block_ccw ccw;
 		char raw[PAGE_SIZE - sizeof(struct ipl_list_hdr)];
-	} ipl_info;
+	};
 } __packed __aligned(PAGE_SIZE);
 
 struct save_area;

arch/s390/kernel/ipl_vmparm.c

@@ -11,11 +11,11 @@ size_t ipl_block_get_ascii_vmparm(char *dest, size_t size,
 	char has_lowercase = 0;
 
 	len = 0;
-	if ((ipb->ipl_info.ccw.vm_flags & DIAG308_VM_FLAGS_VP_VALID) &&
-	    (ipb->ipl_info.ccw.vm_parm_len > 0)) {
+	if ((ipb->ccw.vm_flags & DIAG308_VM_FLAGS_VP_VALID) &&
+	    (ipb->ccw.vm_parm_len > 0)) {
 
-		len = min_t(size_t, size - 1, ipb->ipl_info.ccw.vm_parm_len);
-		memcpy(dest, ipb->ipl_info.ccw.vm_parm, len);
+		len = min_t(size_t, size - 1, ipb->ccw.vm_parm_len);
+		memcpy(dest, ipb->ccw.vm_parm, len);
 		/* If at least one character is lowercase, we assume mixed
 		 * case; otherwise we convert everything to lowercase.
 		 */