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xhci: use trb helper functions when possible

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Use the trb_is_link() and link_trb_toggles_cycle() helpers to
make the code more readable

No functional changes

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Mathias Nyman 2016-11-11 15:13:13 +02:00 committed by Greg Kroah-Hartman
parent c11ae038d6
commit 3495e451d1
1 changed files with 5 additions and 6 deletions
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11
drivers/usb/host/xhci-ring.c
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@ -472,9 +472,8 @@ void xhci_find_new_dequeue_state(struct xhci_hcd *xhci,
if (new_deq == cur_td->last_trb)
td_last_trb_found = true;
if (cycle_found &&
TRB_TYPE_LINK_LE32(new_deq->generic.field[3]) &&
new_deq->generic.field[3] & cpu_to_le32(LINK_TOGGLE))
if (cycle_found && trb_is_link(new_deq) &&
link_trb_toggles_cycle(new_deq))
state->new_cycle_state ^= 0x1;
next_trb(xhci, ep_ring, &new_seg, &new_deq);
@ -518,7 +517,7 @@ static void td_to_noop(struct xhci_hcd *xhci, struct xhci_ring *ep_ring,
for (cur_seg = cur_td->start_seg, cur_trb = cur_td->first_trb;
true;
next_trb(xhci, ep_ring, &cur_seg, &cur_trb)) {
if (TRB_TYPE_LINK_LE32(cur_trb->generic.field[3])) {
if (trb_is_link(cur_trb)) {
/* Unchain any chained Link TRBs, but
* leave the pointers intact.
*/
@ -2114,7 +2113,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_td *td,
cur_seg = ep_ring->deq_seg; cur_trb != event_trb;
next_trb(xhci, ep_ring, &cur_seg, &cur_trb)) {
if (!TRB_TYPE_NOOP_LE32(cur_trb->generic.field[3]) &&
!TRB_TYPE_LINK_LE32(cur_trb->generic.field[3]))
!trb_is_link(cur_trb))
len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2]));
}
len += TRB_LEN(le32_to_cpu(cur_trb->generic.field[2])) -
@ -2260,7 +2259,7 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_td *td,
cur_trb != event_trb;
next_trb(xhci, ep_ring, &cur_seg, &cur_trb)) {
if (!TRB_TYPE_NOOP_LE32(cur_trb->generic.field[3]) &&
!TRB_TYPE_LINK_LE32(cur_trb->generic.field[3]))
!trb_is_link(cur_trb))
td->urb->actual_length +=
TRB_LEN(le32_to_cpu(cur_trb->generic.field[2]));
}