From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: [Xen-devel] [PATCH 1/2] swiotlb-xen: add missing xen_dma_map_page call Date: Tue, 12 Nov 2013 09:45:00 -0500 Message-ID: <20131112144500.GB9435@phenom.dumpdata.com> References: <1384265520-6833-1-git-send-email-stefano.stabellini@eu.citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1384265520-6833-1-git-send-email-stefano.stabellini@eu.citrix.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Stefano Stabellini Cc: konrad@kernel.org, xen-devel@lists.xensource.com, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: xen-devel@lists.xenproject.org On Tue, Nov 12, 2013 at 02:11:59PM +0000, Stefano Stabellini wrote: > swiotlb-xen is missing a xen_dma_map_page call in > xen_swiotlb_map_sg_attrs, in the slow path. s/slow/bounce buffer/ I believe? > > Signed-off-by: Stefano Stabellini > --- > drivers/xen/swiotlb-xen.c | 5 +++++ > 1 files changed, 5 insertions(+), 0 deletions(-) > > diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c > index a224bc7..1eac073 100644 > --- a/drivers/xen/swiotlb-xen.c > +++ b/drivers/xen/swiotlb-xen.c > @@ -555,6 +555,11 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl, > sg_dma_len(sgl) = 0; > return 0; > } > + xen_dma_map_page(hwdev, pfn_to_page(map >> PAGE_SHIFT), > + map & ~PAGE_MASK, > + sg->length, > + dir, > + attrs); > sg->dma_address = xen_phys_to_bus(map); > } else { > /* we are not interested in the dma_addr returned by > -- > 1.7.2.5 > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel