[PATCH 2/2] scsi: core: Drop dev->dma_mask check in evaluating max_sectors

[John Garry <john.g.garry@oracle.com>]

When evaluating shost->max_sectors, we currently check dma_dev->dma_mask
is non-NULL, as dma_max_mapping_size(dma_dev) could previously not handle
unset dma_dev->dma_mask - this is no longer the case.

Signed-off-by: John Garry <john.g.garry@oracle.com>
---
 drivers/scsi/hosts.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index e047747d4ecf8..d512080268afe 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -252,10 +252,8 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct device *dev,
 
 	shost->dma_dev = dma_dev;
 
-	if (dma_dev->dma_mask) {
-		shost->max_sectors = min_t(unsigned int, shost->max_sectors,
-				dma_max_mapping_size(dma_dev) >> SECTOR_SHIFT);
-	}
+	shost->max_sectors = min_not_zero(shost->max_sectors,
+			dma_max_mapping_size(dma_dev) >> SECTOR_SHIFT);
 
 	error = scsi_mq_setup_tags(shost);
 	if (error)
-- 
2.43.7