Merge tag 'dma-mapping-5.20-2022-08-06' of git://git.infradead.org/users/hch/dma...

[platform/kernel/linux-starfive.git] / drivers / scsi / hosts.c

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index bbcb901..26bf3b1 100644 (file)
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -236,6 +236,11 @@ 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);
+       }
+
        error = scsi_mq_setup_tags(shost);
        if (error)
                goto fail;