diff options
| author | Xenia Ragiadakou <burzalodowa@gmail.com> | 2013-09-09 13:29:57 +0300 |
|---|---|---|
| committer | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2013-10-16 12:24:36 -0700 |
| commit | 9124b121e317f3ee3b442b0a3a508c9c13f602e2 (patch) | |
| tree | b9820a0e62b49e8fd954e6696fa340f2c34a0e95 /drivers/usb/host/xhci-ring.c | |
| parent | e7a79a1d6af31c050b4264099c4ab0cbee9122b8 (diff) | |
xhci: add variable 'cmd_trb' in handle_cmd_completion()
This patch adds a new variable 'cmd_trb' to hold the address of the
command TRB, that is associated with the command completion event,
and to replace repetitions of xhci->cmd_ring->dequeue into the code.
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 | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 6826ee1fb12..fd2f97c3713 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1520,10 +1520,12 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, u64 cmd_dma; dma_addr_t cmd_dequeue_dma; u32 cmd_comp_code; + union xhci_trb *cmd_trb; cmd_dma = le64_to_cpu(event->cmd_trb); + cmd_trb = xhci->cmd_ring->dequeue; cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, - xhci->cmd_ring->dequeue); + cmd_trb); /* Is the command ring deq ptr out of sync with the deq seg ptr? */ if (cmd_dequeue_dma == 0) { xhci->error_bitmask |= 1 << 4; @@ -1535,8 +1537,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, return; } - trace_xhci_cmd_completion(&xhci->cmd_ring->dequeue->generic, - (struct xhci_generic_trb *) event); + trace_xhci_cmd_completion(cmd_trb, (struct xhci_generic_trb *) event); cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status)); if (cmd_comp_code == COMP_CMD_ABORT || cmd_comp_code == COMP_CMD_STOP) { @@ -1558,7 +1559,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, return; } - switch (le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3]) + switch (le32_to_cpu(cmd_trb->generic.field[3]) & TRB_TYPE_BITMASK) { case TRB_TYPE(TRB_ENABLE_SLOT): xhci_handle_cmd_enable_slot(xhci, slot_id, cmd_comp_code); @@ -1576,19 +1577,19 @@ static void handle_cmd_completion(struct xhci_hcd *xhci, 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); + xhci_handle_cmd_stop_ep(xhci, cmd_trb, event); break; case TRB_TYPE(TRB_SET_DEQ): - xhci_handle_cmd_set_deq(xhci, event, xhci->cmd_ring->dequeue); + xhci_handle_cmd_set_deq(xhci, event, cmd_trb); break; case TRB_TYPE(TRB_CMD_NOOP): break; case TRB_TYPE(TRB_RESET_EP): - xhci_handle_cmd_reset_ep(xhci, event, xhci->cmd_ring->dequeue); + xhci_handle_cmd_reset_ep(xhci, event, cmd_trb); break; case TRB_TYPE(TRB_RESET_DEV): WARN_ON(slot_id != TRB_TO_SLOT_ID( - le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3]))); + le32_to_cpu(cmd_trb->generic.field[3]))); xhci_handle_cmd_reset_dev(xhci, slot_id, event); break; case TRB_TYPE(TRB_NEC_GET_FW): |