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[209.132.180.67]) by mx.google.com with ESMTP id d7si381654pfo.108.2018.12.06.06.13.15; Thu, 06 Dec 2018 06:13:31 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=fail header.i=@infradead.org header.s=bombadil.20170209 header.b=psPHXtNI; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729797AbeLFOKc (ORCPT + 99 others); Thu, 6 Dec 2018 09:10:32 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:42364 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729446AbeLFOKc (ORCPT ); Thu, 6 Dec 2018 09:10:32 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=Qd/N8v4WLST7e+Rgj899KmUUcIZDgRuyOZOYu6GcjiU=; b=psPHXtNI4mC17WCXLsvCQahby RpTEiOEq8cHoV5mH2mIYdG2AeUeqfLbd38Au+RWjBm+0A+OEDYSHG9sZGhP7dfxuWJ2+QcRCQPAza 2A2jwc/I1Fj/6dXi5XBsOw7y1eUdtlhgOneQEqq/+/uIcY+xeCcIO9GT3E7NmnHeB/q1dgEfZVSPQ 4Yi1M6XLOleFWpeK4iLPr7o6ibJVRMekjWjeo5qvCZvZK7X85GoqJ/Gm1SGvLyLzlx+D1xJnbqbSy dXQNm/xivkdTLhb16qFyONsE8b6CtPGky9AjPeQkENc0GDmv0LEvIAaU1yu1Uv2Jv9qEp5/pUjTaf qzXDb9K+g==; Received: from hch by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1gUuLy-0001B2-N5; Thu, 06 Dec 2018 14:10:10 +0000 Date: Thu, 6 Dec 2018 06:10:10 -0800 From: Christoph Hellwig To: Christoph Hellwig Cc: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , linux-arch@vger.kernel.org, linux-mm@kvack.org, iommu@lists.linux-foundation.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 07/34] powerpc/dma: remove the no-op dma_nommu_unmap_{page, sg} routines Message-ID: <20181206141010.GF29741@infradead.org> References: <20181114082314.8965-1-hch@lst.de> <20181114082314.8965-8-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181114082314.8965-8-hch@lst.de> User-Agent: Mutt/1.9.2 (2017-12-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ping? On Wed, Nov 14, 2018 at 09:22:47AM +0100, Christoph Hellwig wrote: > These methods are optional, no need to implement no-op versions. > > Signed-off-by: Christoph Hellwig > Acked-by: Benjamin Herrenschmidt > --- > arch/powerpc/kernel/dma.c | 16 ---------------- > 1 file changed, 16 deletions(-) > > diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c > index d6deb458bb91..7078d72baec2 100644 > --- a/arch/powerpc/kernel/dma.c > +++ b/arch/powerpc/kernel/dma.c > @@ -197,12 +197,6 @@ static int dma_nommu_map_sg(struct device *dev, struct scatterlist *sgl, > return nents; > } > > -static void dma_nommu_unmap_sg(struct device *dev, struct scatterlist *sg, > - int nents, enum dma_data_direction direction, > - unsigned long attrs) > -{ > -} > - > static u64 dma_nommu_get_required_mask(struct device *dev) > { > u64 end, mask; > @@ -228,14 +222,6 @@ static inline dma_addr_t dma_nommu_map_page(struct device *dev, > return page_to_phys(page) + offset + get_dma_offset(dev); > } > > -static inline void dma_nommu_unmap_page(struct device *dev, > - dma_addr_t dma_address, > - size_t size, > - enum dma_data_direction direction, > - unsigned long attrs) > -{ > -} > - > #ifdef CONFIG_NOT_COHERENT_CACHE > static inline void dma_nommu_sync_sg(struct device *dev, > struct scatterlist *sgl, int nents, > @@ -261,10 +247,8 @@ const struct dma_map_ops dma_nommu_ops = { > .free = dma_nommu_free_coherent, > .mmap = dma_nommu_mmap_coherent, > .map_sg = dma_nommu_map_sg, > - .unmap_sg = dma_nommu_unmap_sg, > .dma_supported = dma_nommu_dma_supported, > .map_page = dma_nommu_map_page, > - .unmap_page = dma_nommu_unmap_page, > .get_required_mask = dma_nommu_get_required_mask, > #ifdef CONFIG_NOT_COHERENT_CACHE > .sync_single_for_cpu = dma_nommu_sync_single, > -- > 2.19.1 > > _______________________________________________ > iommu mailing list > iommu@lists.linux-foundation.org > https://lists.linuxfoundation.org/mailman/listinfo/iommu ---end quoted text---