[PATCH 1/1] sd: do not let LBPME bit stop the VPDs speak

[tom.ty89@gmail.com]

From: Tom Yan <tom.ty89@gmail.com>

Some devices have details of their support on unmapping on the
Block Limits and/or Logical Block Provisioning VPDs while they
do not set the LBPME bit to 1. Though this is required by the
SCSI standards, the VPDs are giving even more concrete details
about the support, so they should be used even when the bit
is set to 0.

Signed-off-by: Tom Yan <tom.ty89@gmail.com>

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index d749da7..a0d7c73 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2670,9 +2670,6 @@ static void sd_read_block_limits(struct scsi_disk *sdkp)
 
 		sdkp->max_ws_blocks = (u32)get_unaligned_be64(&buffer[36]);
 
-		if (!sdkp->lbpme)
-			goto out;
-
 		lba_count = get_unaligned_be32(&buffer[20]);
 		desc_count = get_unaligned_be32(&buffer[24]);
 
@@ -2747,9 +2744,6 @@ static void sd_read_block_provisioning(struct scsi_disk *sdkp)
 	unsigned char *buffer;
 	const int vpd_len = 8;
 
-	if (sdkp->lbpme == 0)
-		return;
-
 	buffer = kmalloc(vpd_len, GFP_KERNEL);
 
 	if (!buffer || scsi_get_vpd_page(sdkp->device, 0xb2, buffer, vpd_len))
-- 
2.7.2