Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c
index 5ce4216f72a2..eba1adbc1b6a 100644
--- a/drivers/ide/ide-disk.c
+++ b/drivers/ide/ide-disk.c
@@ -481,6 +481,15 @@ static inline int idedisk_supports_lba48(const struct hd_driveid *id)
 	       && id->lba_capacity_2;
 }
 
+/*
+ * Some disks report total number of sectors instead of
+ * maximum sector address.  We list them here.
+ */
+static const struct drive_list_entry hpa_list[] = {
+	{ "ST340823A",	NULL },
+	{ NULL,		NULL }
+};
+
 static void idedisk_check_hpa(ide_drive_t *drive)
 {
 	unsigned long long capacity, set_max;
@@ -492,6 +501,15 @@ static void idedisk_check_hpa(ide_drive_t *drive)
 	else
 		set_max = idedisk_read_native_max_address(drive);
 
+	if (ide_in_drive_list(drive->id, hpa_list)) {
+		/*
+		 * Since we are inclusive wrt to firmware revisions do this
+		 * extra check and apply the workaround only when needed.
+		 */
+		if (set_max == capacity + 1)
+			set_max--;
+	}
+
 	if (set_max <= capacity)
 		return;