From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx110.postini.com [74.125.245.110]) by kanga.kvack.org (Postfix) with SMTP id CA2276B0069 for ; Fri, 29 Jun 2012 07:10:01 -0400 (EDT) Message-ID: <4FED8D03.10507@ladisch.de> Date: Fri, 29 Jun 2012 13:09:55 +0200 From: Clemens Ladisch MIME-Version: 1.0 Subject: Re: [PATCH] common: dma-mapping: add support for generic dma_mmap_* calls References: <1339741135-7841-1-git-send-email-m.szyprowski@samsung.com> In-Reply-To: <1339741135-7841-1-git-send-email-m.szyprowski@samsung.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org List-ID: To: Marek Szyprowski Cc: linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linaro-mm-sig@lists.linaro.org, linux-mm@kvack.org, linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, Kyungmin Park , Arnd Bergmann , Russell King - ARM Linux , Benjamin Herrenschmidt , Konrad Rzeszutek Wilk , David Gibson , Subash Patel , Sumit Semwal Marek Szyprowski wrote: > +++ b/drivers/base/dma-mapping.c > ... > +int dma_common_mmap(struct device *dev, struct vm_area_struct *vma, > + void *cpu_addr, dma_addr_t dma_addr, size_t size) > +{ > + int ret = -ENXIO; > + ... > + if (dma_mmap_from_coherent(dev, vma, cpu_addr, size, &ret)) > + return ret; This will return -ENXIO if dma_mmap_from_coherent() succeeds. Regards, Clemens -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org