From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Szyprowski Subject: Re: [PATCH RFT linux-next] alpha: dma-mapping: support debug_dma_mapping_error Date: Wed, 27 Mar 2013 16:45:20 +0100 Message-ID: <51531410.90706@samsung.com> References: <1351269163.4013.27.camel@lorien2> <1353001768.2532.31.camel@lorien2> <20130327065948.GO5042@omega> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: In-reply-to: <20130327065948.GO5042@omega> Sender: linux-kernel-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="us-ascii"; format="flowed" To: Michael Cree , Shuah Khan , rth@twiddle.net, ink@jurassic.park.msu.ru, mattst88@gmail.com, kyungmin.park@samsung.com, arnd@arndb.de, andrzej.p@samsung.com, linux-alpha@vger.kernel.org, LKML , shuahkhan@gmail.com Hello, On 3/27/2013 7:59 AM, Michael Cree wrote: > On Thu, Nov 15, 2012 at 10:49:28AM -0700, Shuah Khan wrote: > > On Fri, 2012-10-26 at 10:32 -0600, Shuah Khan wrote: > > > Add support for debug_dma_mapping_error() call to avoid warning from > > > debug_dma_unmap() interface when it checks for mapping error checked > > > status. Without this patch, device driver failed to check map error > > > warning is generated. > > > > > > Signed-off-by: Shuah Khan > > > --- > > > arch/alpha/include/asm/dma-mapping.h | 1 + > > > 1 file changed, 1 insertion(+) > > > > > > diff --git a/arch/alpha/include/asm/dma-mapping.h b/arch/alpha/include/asm/dma-mapping.h > > > index dfa32f0..b4d483b 100644 > > > --- a/arch/alpha/include/asm/dma-mapping.h > > > +++ b/arch/alpha/include/asm/dma-mapping.h > > > @@ -32,6 +32,7 @@ static inline void dma_free_attrs(struct device *dev, size_t size, > > > > > > static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr) > > > { > > > + debug_dma_mapping_error(dev, dma_addr); > > > return get_dma_ops(dev)->mapping_error(dev, dma_addr); > > > } > > > > > > > Marek, > > > > This is for alpha to go through your tree. > > Given that this does not appear to be upstream yet I'll take it through > the Alpha tree. Those patches in the end went via IOMMU tree. I looks that the patch for Alpha has been missed. It looks that this patch should be merged to v3.9-rcX asap to fix the broken dma-mapping api calls. Best regards -- Marek Szyprowski Samsung Poland R&D Center