This patch adds a new variable 'cmd_comp_code' to hold the command completion
status code aiming to reduce code duplication and to improve code readability.
Signed-off-by: Xenia Ragiadakou <burzalod...@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sh...@linux.intel.com>
---
drivers/usb/host/xhci-ring.c | 20 ++++++++------------
1 file changed, 8 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index ec6bd3e..dee663a 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1505,6 +1505,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
int slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags));
u64 cmd_dma;
dma_addr_t cmd_dequeue_dma;
+ u32 cmd_comp_code;
cmd_dma = le64_to_cpu(event->cmd_trb);
cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg,
@@ -1523,16 +1524,15 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
trace_xhci_cmd_completion(&xhci->cmd_ring->dequeue->generic,
(struct xhci_generic_trb *) event);
- if ((GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_ABORT) ||
- (GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_STOP)) {
+ cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status));
+ if (cmd_comp_code == COMP_CMD_ABORT || cmd_comp_code == COMP_CMD_STOP) {
/* If the return value is 0, we think the trb pointed by
* command ring dequeue pointer is a good trb. The good
* trb means we don't want to cancel the trb, but it have
* been stopped by host. So we should handle it normally.
* Otherwise, driver should invoke inc_deq() and return.
*/
- if (handle_stopped_cmd_ring(xhci,
- GET_COMP_CODE(le32_to_cpu(event->status)))) {
+ if (handle_stopped_cmd_ring(xhci, cmd_comp_code)) {
inc_deq(xhci, xhci->cmd_ring);
return;
}
@@ -1544,23 +1544,19 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
switch (le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])
& TRB_TYPE_BITMASK) {
case TRB_TYPE(TRB_ENABLE_SLOT):
- xhci_handle_cmd_enable_slot(xhci, slot_id,
- GET_COMP_CODE(le32_to_cpu(event->status)));
+ xhci_handle_cmd_enable_slot(xhci, slot_id, cmd_comp_code);
break;
case TRB_TYPE(TRB_DISABLE_SLOT):
xhci_handle_cmd_disable_slot(xhci, slot_id);
break;
case TRB_TYPE(TRB_CONFIG_EP):
- xhci_handle_cmd_config_ep(xhci, slot_id, event,
- GET_COMP_CODE(le32_to_cpu(event->status)));
+ xhci_handle_cmd_config_ep(xhci, slot_id, event, cmd_comp_code);
break;
case TRB_TYPE(TRB_EVAL_CONTEXT):
- xhci_handle_cmd_eval_ctx(xhci, slot_id, event,
- GET_COMP_CODE(le32_to_cpu(event->status)));
+ xhci_handle_cmd_eval_ctx(xhci, slot_id, event, cmd_comp_code);
break;
case TRB_TYPE(TRB_ADDR_DEV):
- xhci_handle_cmd_addr_dev(xhci, slot_id,
- GET_COMP_CODE(le32_to_cpu(event->status)));
+ xhci_handle_cmd_addr_dev(xhci, slot_id, cmd_comp_code);
break;
case TRB_TYPE(TRB_STOP_RING):
xhci_handle_cmd_stop_ep(xhci, xhci->cmd_ring->dequeue, event);
--
1.8.3.4
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