[PATCH 3/7] scsi: dc395x: Switch to kmap_sg

From: Richard Weinberger
Date: Thu Aug 10 2023 - 12:00:53 EST


Switch to our new helper from scatterlist lib.
No functional change, the mapped region is still used in atomic
context.
Maybe local_irq_save() can be dropped, but I don't know this driver
well enough.

Signed-off-by: Richard Weinberger <richard@xxxxxx>
---
drivers/scsi/dc395x.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index c8e86f8a631eb..4a4e7a35328b9 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -2122,7 +2122,7 @@ static void data_in_phase0(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
local_irq_save(flags);
/* Assumption: it's inside one page as it's at most 4 bytes and
I just assume it's on a 4-byte boundary */
- base = scsi_kmap_atomic_sg(scsi_sglist(srb->cmd),
+ base = kmap_sg(scsi_sglist(srb->cmd),
srb->sg_count, &offset, &len);
virt = base + offset;

@@ -2165,7 +2165,7 @@ static void data_in_phase0(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
DC395x_write8(acb, TRM_S1040_SCSI_CONFIG2, 0);
}

- scsi_kunmap_atomic_sg(base);
+ kunmap_sg(base);
local_irq_restore(flags);
}
/*printk(" %08x", *(u32*)(bus_to_virt (addr))); */
@@ -2339,7 +2339,7 @@ static void data_io_transfer(struct AdapterCtlBlk *acb,

local_irq_save(flags);
/* Again, max 4 bytes */
- base = scsi_kmap_atomic_sg(scsi_sglist(srb->cmd),
+ base = kmap_sg(scsi_sglist(srb->cmd),
srb->sg_count, &offset, &len);
virt = base + offset;

@@ -2354,7 +2354,7 @@ static void data_io_transfer(struct AdapterCtlBlk *acb,
sg_subtract_one(srb);
}

- scsi_kunmap_atomic_sg(base);
+ kunmap_sg(base);
local_irq_restore(flags);
}
if (srb->dcb->sync_period & WIDE_SYNC) {
@@ -3290,7 +3290,7 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
size_t offset = 0, len = sizeof(struct ScsiInqData);

local_irq_save(flags);
- base = scsi_kmap_atomic_sg(sg, scsi_sg_count(cmd), &offset, &len);
+ base = kmap_sg(sg, scsi_sg_count(cmd), &offset, &len);
ptr = (struct ScsiInqData *)(base + offset);

if (!ckc_only && get_host_byte(cmd) == DID_OK
@@ -3308,7 +3308,7 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
}
}

- scsi_kunmap_atomic_sg(base);
+ kunmap_sg(base);
local_irq_restore(flags);
}

--
2.35.3