[RESEND PATCH v2 07/11] usb: xhci: convert to TRB_LEN()

Frank Wunderlich
2020-09-02T06:13:39Z

Use TRB_LEN(x) instead of ((x) & TRB_LEN_MASK)

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
drivers/usb/host/xhci-ring.c | 8 ++++----
include/usb/xhci.h | 1 -
2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 16d2e02cfa..99c84f95b3 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -688,7 +688,7 @@ int xhci_bulk_tx(struct usb_device *udev, unsigned long pipe,
length, maxpacketsize,
more_trbs_coming);

- length_field = ((trb_buff_len & TRB_LEN_MASK) |
+ length_field = (TRB_LEN(trb_buff_len) |
TRB_TD_SIZE(remainder) |
TRB_INTR_TARGET(0));

@@ -848,7 +848,7 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,
trb_fields[1] = le16_to_cpu(req->index) |
le16_to_cpu(req->length) << 16;
/* TRB_LEN | (TRB_INTR_TARGET) */
- trb_fields[2] = (8 | TRB_INTR_TARGET(0));
+ trb_fields[2] = (TRB_LEN(8) | TRB_INTR_TARGET(0));
/* Immediate data in pointer */
trb_fields[3] = field;
queue_trb(ctrl, ep_ring, true, trb_fields);
@@ -864,11 +864,11 @@ int xhci_ctrl_tx(struct usb_device *udev, unsigned long pipe,

remainder = xhci_td_remainder(ctrl, 0, length, length,
usb_maxpacket(udev, pipe), 1);
- length_field = (length & TRB_LEN_MASK) | TRB_TD_SIZE(remainder) |
+ length_field = TRB_LEN(length) | TRB_TD_SIZE(remainder) |
TRB_INTR_TARGET(0);
debug("length_field = %d, length = %d,"
"xhci_td_remainder(length) = %d , TRB_INTR_TARGET(0) = %d\n",
- length_field, (length & TRB_LEN_MASK),
+ length_field, TRB_LEN(length),
TRB_TD_SIZE(remainder), 0);

if (length > 0) {
diff --git a/include/usb/xhci.h b/include/usb/xhci.h
index ca3d99b954..35c66042ba 100644
--- a/include/usb/xhci.h
+++ b/include/usb/xhci.h
@@ -847,7 +847,6 @@ struct xhci_event_cmd {
/* Normal TRB fields */
/* transfer_len bitmasks - bits 0:16 */
#define TRB_LEN(p) ((p) & 0x1ffff)
-#define TRB_LEN_MASK (0x1ffff)
/* TD Size, packets remaining in this TD, bits 21:17 (5 bits, so max 31) */
#define TRB_TD_SIZE(p) (min((p), (u32)31) << 17)
/* Interrupter Target - which MSI-X vector to target the completion event@*/
--
2.25.1