[PATCH] USB: XHCI: xhci-ring: Remove unused dma address calculation in inc_enq and inc_deq function

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi,

in xhci-ring.c, function inc_enq and inc_deq calculate the dma address
of trb but never used. This calculation may be used for debugging
purpose, in that case this code should be part of debug flag.

Signed-off-by: Girish Verma <girish@xxxxxxxxxxxxxxxx>
---
 drivers/usb/host/xhci-ring.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 3d9422f..dcd67c1 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -146,7 +146,6 @@ static void next_trb(struct xhci_hcd *xhci,
 static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring)
 {
 	union xhci_trb *next;
-	unsigned long long addr;

 	ring->deq_updates++;

@@ -168,7 +167,6 @@ static void inc_deq(struct xhci_hcd *xhci, struct
xhci_ring *ring)
 		ring->dequeue = ring->deq_seg->trbs;
 		next = ring->dequeue;
 	}
-	addr = (unsigned long long) xhci_trb_virt_to_dma(ring->deq_seg,
ring->dequeue);
 }

 /*
@@ -193,7 +191,6 @@ static void inc_enq(struct xhci_hcd *xhci, struct
xhci_ring *ring,
 {
 	u32 chain;
 	union xhci_trb *next;
-	unsigned long long addr;

 	chain = le32_to_cpu(ring->enqueue->generic.field[3]) & TRB_CHAIN;
 	/* If this is not event ring, there is one less usable TRB */
@@ -245,7 +242,6 @@ static void inc_enq(struct xhci_hcd *xhci, struct
xhci_ring *ring,
 		ring->enqueue = ring->enq_seg->trbs;
 		next = ring->enqueue;
 	}
-	addr = (unsigned long long) xhci_trb_virt_to_dma(ring->enq_seg,
ring->enqueue);
 }

 /*
--
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux