From patchwork Thu Aug 8 16:00:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11084469 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 1E87A912 for ; Thu, 8 Aug 2019 16:01:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0EA3128837 for ; Thu, 8 Aug 2019 16:01:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F1C962883B; Thu, 8 Aug 2019 16:01:04 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.7 required=2.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5E3F928793 for ; Thu, 8 Aug 2019 16:01:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2404023AbfHHQAv (ORCPT ); Thu, 8 Aug 2019 12:00:51 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:57170 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2404110AbfHHQAu (ORCPT ); Thu, 8 Aug 2019 12:00:50 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type: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=emic1N5pBwSKEozMjClg8gLUqV9b7hGEYPngZUmCqiM=; b=YnaMOI0PsAMQfwt7chdmGOBbQG 0ZHnt7n+tMRMd/8o79LcsuHafIxSlRM1SSMQfOtSkYDGEzOawBIDA+pK72yZ1K1FaMR2XNxaebXnH PnQ1AixagKdvzYUUvlKZYwKiFXy5r59kx7JXZVKWW1KrV1qasvazlcbTmH/vPGHaKJfMjh2E4OnTD hfVGXb4c6ku3o/2RJo0j8ojtZ59PPlBGClwpRiAFzgLRRaW96Mwf7rLftwORFqtnTpi9i4fdl/tMz +9ScBv/CMBBcU52fS7BRVFGgnutNXu0CPQfJXGl1OyOFtyHWngOI68b8niJkpJ1oO1oNX1KFNPEmM xj2HKXDw==; Received: from [195.167.85.94] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.92 #3 (Red Hat Linux)) id 1hvkqK-0006lS-SV; Thu, 08 Aug 2019 16:00:45 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org, Marek Szyprowski Cc: Vladimir Murzin , Takashi Iwai , Helge Deller , Robin Murphy , Michal Simek , linux-arm-kernel@lists.infradead.org, linux-m68k@lists.linux-m68k.org, linux-parisc@vger.kernel.org, linux-sh@vger.kernel.org, linux-xtensa@linux-xtensa.org, linuxppc-dev@lists.ozlabs.org, x86@kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 5/8] ALSA: pcm: use dma_can_mmap() to check if a device supports dma_mmap_* Date: Thu, 8 Aug 2019 19:00:02 +0300 Message-Id: <20190808160005.10325-6-hch@lst.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190808160005.10325-1-hch@lst.de> References: <20190808160005.10325-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-parisc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-parisc@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Replace the local hack with the dma_can_mmap helper to check if a given device supports mapping DMA allocations to userspace. Signed-off-by: Christoph Hellwig Reviewed-by: Takashi Iwai --- sound/core/pcm_native.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 703857aab00f..9763c18e176a 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -220,13 +220,12 @@ static bool hw_support_mmap(struct snd_pcm_substream *substream) { if (!(substream->runtime->hw.info & SNDRV_PCM_INFO_MMAP)) return false; - /* architecture supports dma_mmap_coherent()? */ -#if defined(CONFIG_ARCH_NO_COHERENT_DMA_MMAP) || !defined(CONFIG_HAS_DMA) - if (!substream->ops->mmap && - substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV) - return false; -#endif - return true; + + if (substream->ops->mmap || + substream->dma_buffer.dev.type != SNDRV_DMA_TYPE_DEV) + return true; + + return dma_can_mmap(substream->dma_buffer.dev.dev); } static int constrain_mask_params(struct snd_pcm_substream *substream,