From ba80c3a572f4db2153a1a94c02f27a4566ca0995 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 11 May 2018 12:51:08 -0600
Subject: [PATCH] sata_nv: set host can_queue count appropriately
libata limits the max limit for drivers to 31 anyway. We'll soon
allow drivers to actually go to QD=32, but that might require some
driver modifications. Before we do that, ensure that sata_nv limits
the depth to 31.
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
drivers/ata/sata_nv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 9a74f9ff5ebc5..10ae11aa1926f 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -400,7 +400,7 @@ static struct scsi_host_template nv_adma_sht = {
static struct scsi_host_template nv_swncq_sht = {
ATA_NCQ_SHT(DRV_NAME),
- .can_queue = ATA_MAX_QUEUE,
+ .can_queue = ATA_MAX_QUEUE - 1,
.sg_tablesize = LIBATA_MAX_PRD,
.dma_boundary = ATA_DMA_BOUNDARY,
.slave_configure = nv_swncq_slave_config,
--
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