Messages in this thread Patch in this message | | | Subject | [PATCH] USB: XHCI: xhci-ring: Remove unused dma address calculation in inc_enq and inc_deq function | From | Girish Verma <> | Date | Thu, 06 Sep 2012 21:17:33 +0530 |
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Resending patch with latest kernel code: In xhci-ring.c, function inc_enq and inc_deq calculate the dma address of trb but never used.
Signed-off-by: Girish Verma <girish@circuitsutra.com> --- 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 643c2f3..5c5c47b 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -145,7 +145,6 @@ static void next_trb(struct xhci_hcd *xhci, */ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring) { - unsigned long long addr; ring->deq_updates++; @@ -176,7 +175,6 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring) } } while (last_trb(xhci, ring, ring->deq_seg, ring->dequeue)); - addr = (unsigned long long) xhci_trb_virt_to_dma(ring->deq_seg, ring->dequeue); } /* @@ -201,7 +199,6 @@ 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 */ @@ -253,7 +250,6 @@ 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); } /* -- 1.7.0.4
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