Compiling a 32bit kernel with CONFIG_LBDAF=n gives this compiler warning: /drivers/md/md.c: In function ‘super_90_load’: /drivers/md/md.c:1068:3: warning: large integer implicitly truncated to unsigned type [-Woverflow] Fix it by casting the calculated value to a sector_t type. Signed-off-by: Helge Deller <deller@xxxxxx> diff --git a/drivers/md/md.c b/drivers/md/md.c index e60cebf..b56f1c7 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1065,7 +1065,7 @@ static int super_90_load(struct md_rdev *rdev, struct md_rdev *refdev, int minor * record this size) */ if (rdev->sectors >= (2ULL << 32) && sb->level >= 1) - rdev->sectors = (2ULL << 32) - 2; + rdev->sectors = (sector_t) ((2ULL << 32) - 2); if (rdev->sectors < ((sector_t)sb->size) * 2 && sb->level >= 1) /* "this cannot possibly happen" ... */ @@ -1356,7 +1356,7 @@ super_90_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors) * 4TB == 2^32 KB, or 2*2^32 sectors. */ if (num_sectors >= (2ULL << 32) && rdev->mddev->level >= 1) - num_sectors = (2ULL << 32) - 2; + num_sectors = (sector_t) ((2ULL << 32) - 2); md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size, rdev->sb_page); md_super_wait(rdev->mddev); -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
