summaryrefslogtreecommitdiff
path: root/drivers/scsi/scsi.c
diff options
context:
space:
mode:
authorJakub Kicinski <kuba@kernel.org>2023-10-05 13:16:31 -0700
committerJakub Kicinski <kuba@kernel.org>2023-10-05 13:16:47 -0700
commit2606cf059c56bfb86d5d6bd0f41bd7eedefc8b0a (patch)
tree6bd918ad4fc55e677cc6ccb3212eab873c467c7f /drivers/scsi/scsi.c
parent49e7265fd098fdade2bbdd9331e6b914cda7fa83 (diff)
parentf291209eca5eba0b4704fa0832af57b12dbc1a02 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. No conflicts (or adjacent changes of note). Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/scsi/scsi.c')
-rw-r--r--drivers/scsi/scsi.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index d0911bc28663..89367c4bf0ef 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -613,6 +613,17 @@ void scsi_cdl_check(struct scsi_device *sdev)
bool cdl_supported;
unsigned char *buf;
+ /*
+ * Support for CDL was defined in SPC-5. Ignore devices reporting an
+ * lower SPC version. This also avoids problems with old drives choking
+ * on MAINTENANCE_IN / MI_REPORT_SUPPORTED_OPERATION_CODES with a
+ * service action specified, as done in scsi_cdl_check_cmd().
+ */
+ if (sdev->scsi_level < SCSI_SPC_5) {
+ sdev->cdl_supported = 0;
+ return;
+ }
+
buf = kmalloc(SCSI_CDL_CHECK_BUF_LEN, GFP_KERNEL);
if (!buf) {
sdev->cdl_supported = 0;