diff options
| author | Xenia Ragiadakou <burzalodowa@gmail.com> | 2013-09-09 14:29:56 +0400 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2013-10-16 23:24:34 +0400 |
| commit | e7a79a1d6af31c050b4264099c4ab0cbee9122b8 (patch) | |
| tree | a0f465ca79bc54f0ad331ec847421d0f36c8e528 /drivers/usb/host/xhci-ring.c | |
| parent | 6ed46d3337b1f4a8f9fa7438589cab5f1bb75e98 (diff) | |
| download | linux-e7a79a1d6af31c050b4264099c4ab0cbee9122b8.tar.xz | |
xhci: add variable 'cmd_comp_code' in handle_cmd_completion()
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 <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/host/xhci-ring.c')
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 20 |
1 files changed, 8 insertions, 12 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 3e8053284752..6826ee1fb125 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1519,6 +1519,7 @@ 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, @@ -1537,16 +1538,15 @@ 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; } @@ -1561,23 +1561,19 @@ 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); |