[v5,05/31] scsi: pm8001: Fix pm80xx_pci_mem_copy() interface

Commit Message

Damien Le Moal Feb. 18, 2022, 3:14 a.m. UTC

The declaration of the local variable destination1 in
pm80xx_pci_mem_copy() as a pointer to a u32 results in the sparse
warning:

warning: incorrect type in assignment (different base types)
    expected unsigned int [usertype]
    got restricted __le32 [usertype]

Furthermore, the destination" argument of pm80xx_pci_mem_copy() is
wrongly declared with the const attribute.

Fix both problems by changing the type of the "destination" argument
to "__le32 *" and use this argument directly inside the
pm80xx_pci_mem_copy() function, thus removing the need for the
destination1 local variable.

Signed-off-by: Damien Le Moal <[e-mail]>
Reviewed-by: Jack Wang <[e-mail]>
---
 drivers/scsi/pm8001/pm80xx_hwi.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

Patch

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index f1663a10693a..0b3386a3c508 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -67,18 +67,16 @@  int pm80xx_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shift_value)
 }
 
 static void pm80xx_pci_mem_copy(struct pm8001_hba_info  *pm8001_ha, u32 soffset,
-				const void *destination,
+				__le32 *destination,
 				u32 dw_count, u32 bus_base_number)
 {
 	u32 index, value, offset;
-	u32 *destination1;
-	destination1 = (u32 *)destination;
 
-	for (index = 0; index < dw_count; index += 4, destination1++) {
+	for (index = 0; index < dw_count; index += 4, destination++) {
 		offset = (soffset + index);
 		if (offset < (64 * 1024)) {
 			value = pm8001_cr32(pm8001_ha, bus_base_number, offset);
-			*destination1 =  cpu_to_le32(value);
+			*destination = cpu_to_le32(value);
 		}
 	}
 	return;