From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753748Ab2EMP3Z (ORCPT ); Sun, 13 May 2012 11:29:25 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:63728 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753666Ab2EMP3W (ORCPT ); Sun, 13 May 2012 11:29:22 -0400 Subject: [PATCH] USB: XHCI: xhci-ring: Remove unused dma address calculation in inc_enq and inc_deq function From: Girish Verma To: kernel-janitors@vger.kernel.org, linux-usb@vger.kernel.org Cc: linux-kernel@vger.kernel.org, sarah.a.sharp@linux.intel.com, gregkh@linuxfoundation.org Content-Type: text/plain; charset="UTF-8" Date: Sun, 13 May 2012 20:59:02 +0530 Message-ID: <1336922942.3945.12.camel@cst-girish-laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org In xhci-ring.c, function inc_enq and inc_deq calculate the dma address of trb but never used. Signed-off-by: Girish Verma --- 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); } /* --