xfs: fix endianness error when checking log block crc on big endian platforms

Since the checksum function and the field are both __le32, don't
perform endian conversion when comparing the two.  This fixes mount
failures on ppc64.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index da37beb..594f7e6 100644 (file)
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -4491,7 +4491,7 @@ xlog_recover_process(
         * know precisely what failed.
         */
        if (pass == XLOG_RECOVER_CRCPASS) {
-               if (rhead->h_crc && crc != le32_to_cpu(rhead->h_crc))
+               if (rhead->h_crc && crc != rhead->h_crc)
                        return -EFSBADCRC;
                return 0;
        }
@@ -4502,7 +4502,7 @@ xlog_recover_process(
         * zero CRC check prevents warnings from being emitted when upgrading
         * the kernel from one that does not add CRCs by default.
         */
-       if (crc != le32_to_cpu(rhead->h_crc)) {
+       if (crc != rhead->h_crc) {
                if (rhead->h_crc || xfs_sb_version_hascrc(&log->l_mp->m_sb)) {
                        xfs_alert(log->l_mp,
                "log record CRC mismatch: found 0x%x, expected 0x%x.",