scsi: pm8001: Fix pm80xx_pci_mem_copy() interface

[ Upstream commit 3762d8f6edcdb03994c919f9487fd6d336c06561 ]

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.

Link: https://lore.kernel.org/r/20220220031810.738362-6-damien.lemoal@opensource.wdc.com
Reviewed-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index b0a108e..df140ec 100644 (file)
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -66,18 +66,16 @@ 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;