fix gcc warnings about strict-aliasing rules

Original-by: Luca Berra <bluca@comedia.it>
Signed-off-by: NeilBrown <neilb@suse.de>

diff --git a/util.c b/util.c
index 68f048d06f3a24584b17a48516f8e0b96e2c655a..5d5711c897f37ee19fb2d530692e38081f508e55 100644 (file)
--- a/util.c
+++ b/util.c
@@ -1142,6 +1142,7 @@ int get_dev_size(int fd, char *dname, unsigned long long *sizep)
 static int get_gpt_last_partition_end(int fd, unsigned long long *endofpart)
 {
        unsigned char buf[512];
+       __u64 *buf64;
        unsigned char empty_gpt_entry[16]= {0};
        struct GPT_part_entry *part;
        unsigned long long curr_part_end;
@@ -1160,7 +1161,8 @@ static int get_gpt_last_partition_end(int fd, unsigned long long *endofpart)
        entry_size = __le32_to_cpu(buf[GPT_ENTRY_SIZE_OFFSET]);
 
        /* Check GPT signature*/
-       if (*((__u64*)buf) != GPT_SIGNATURE_MAGIC)
+       buf64 = (__u64*)buf;
+       if (buf64[0] != GPT_SIGNATURE_MAGIC)
                return -1;
 
        /* sanity checks */
@@ -1178,7 +1180,8 @@ static int get_gpt_last_partition_end(int fd, unsigned long long *endofpart)
                /* is this valid partition? */
                if (memcmp(part->type_guid, empty_gpt_entry, 16) != 0) {
                        /* check the last lba for the current partition */
-                       curr_part_end = __le64_to_cpu(*(__u64*)part->ending_lba);
+                       buf64 = (__u64*)part->ending_lba;
+                       curr_part_end = __le64_to_cpu(buf64[0]);
                        if (curr_part_end > *endofpart)
                                *endofpart = curr_part_end;
                }