The request_t 'handle' member is 32-bits wide, hence use wrt_reg_dword().
Change the cast in the wrt_reg_byte() call to make it clear that a
regular pointer is casted to an __iomem pointer.
Note: 'pkt' points to I/O memory for the qlafx00 adapter family and to
coherent memory for all other adapter families.
This patch fixes the following Coverity complaint:
CID 358864 (#1 of 1): Reliance on integer endianness (INCOMPATIBLE_CAST)
incompatible_cast: Pointer &pkt->handle points to an object whose effective
type is unsigned int (32 bits, unsigned) but is dereferenced as a narrower
unsigned short (16 bits, unsigned). This may lead to unexpected results
depending on machine endianness.
Reviewed-by: Daniel Wagner <dwagner@xxxxxxx>
Cc: Nilesh Javali <njavali@xxxxxxxxxxx>
Cc: Quinn Tran <qutran@xxxxxxxxxxx>
Cc: Himanshu Madhani <himanshu.madhani@xxxxxxxxxx>
Cc: Martin Wilck <mwilck@xxxxxxxx>
Cc: Roman Bolshakov <r.bolshakov@xxxxxxxxx>
Fixes: 8ae6d9c7eb10 ("[SCSI] qla2xxx: Enhancements to support ISPFx00.")
Signed-off-by: Bart Van Assche <bvanassche@xxxxxxx>
---
drivers/scsi/qla2xxx/qla_iocb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 1d3c58c5f0e2..e3d2dea0b057 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -2305,8 +2305,8 @@ __qla2x00_alloc_iocbs(struct qla_qpair *qpair, srb_t *sp)
pkt = req->ring_ptr;
memset(pkt, 0, REQUEST_ENTRY_SIZE);
if (IS_QLAFX00(ha)) {
- wrt_reg_byte((void __iomem *)&pkt->entry_count, req_cnt);
- wrt_reg_word((void __iomem *)&pkt->handle, handle);
+ wrt_reg_byte((u8 __force __iomem *)&pkt->entry_count, req_cnt);
+ wrt_reg_dword((__le32 __force __iomem *)&pkt->handle, handle);
} else {
pkt->entry_count = req_cnt;
pkt->handle = handle;
