From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergei Shtylyov Date: Fri, 07 Sep 2012 10:46:20 +0000 Subject: Re: [PATCH] USB: XHCI: xhci-ring: Remove unused dma address calculation in inc_enq and inc_deq funct Message-Id: <5049D07C.8010403@mvista.com> List-Id: References: <1336922942.3945.12.camel@cst-girish-laptop> <1346946453.5012.1.camel@cst-girish-laptop> In-Reply-To: <1346946453.5012.1.camel@cst-girish-laptop> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Girish Verma Cc: kernel-janitors@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, sarah.a.sharp@linux.intel.com, gregkh@linuxfoundation.org Hello. On 06-09-2012 19:47, Girish Verma wrote: > Resending patch with latest kernel code: That comment should have been put after the --- tear line. > 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 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); The patch is line wrapped. Should be easy to fix by hand when applying though... WBR, Sergei