From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 232C44A0C; Wed, 15 Jul 2026 06:21:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784096489; cv=none; b=Zy/nByB2q9Y6iHT0a8vIbnoarBgLQqcbSwjm2qMpQ1YL2eDJP3Afz1aOcF+8xxTQSBpGFodCuyq6qWnt+DiuPiWK43zaD5lizqk+92RAjjl3rYIXGX330rdrzfNJKXR1RwCAVGY15hp+Vx34dXOFcew8KKXCgsl2KpZobvdQ9sg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784096489; c=relaxed/simple; bh=zrr/8QG4TBnO31u0geowDpSHj1WSlznSPJYFGAhqwqU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=aCAms9TTxuOhoB37P3jmSXZ0si7uDJIjhRRHKTCgInCxwx9wxX6LH0U9qmT177kzwRx/yAWjsqNSlAtxexdY4m7rtJliLu3x+1DV3dE4F8b9meh1SJpvnZmr5MPBJZqDpuz3vx8qpSOTGT7p2wgiun/Kb7YjWc9Hcv0s9/iEIaI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jcDlTBB6; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jcDlTBB6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E80851F00A3A; Wed, 15 Jul 2026 06:21:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784096487; bh=n8HXYrZJxWHjjmj3qEyT+Zg6Jj3eLpVK+NKrXWZfxeg=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=jcDlTBB6w3jar+gMo8sJ2wnylExEoKYg3oqsAi971GZqI/U5UXD/5lAnFaH0pAed1 AgW/W4DBhcbIZSVQO1w7/O6GIhLPZkRgUKNG5lXcSs69L7cmDqaFKN4uLYUz5lba8/ 3oLl/xVLZbpOQ/EhSuTqMd4+ZpWd5sisGGPaFa1fzB45txm2Ae2o9Pj9BC8XZeXWDQ D7Lmr3vKi4DsIMc6PCJQNgOueHApMAzsUTdS+WE2H/lMGuWQ6CmWaUnQSns++2Ikey lDTk5Hp4JbOnzMM7XNMnsvv86oXz4yllbfATJJiBH/9qxx4TlncWAGZxBEvdKKcC7K up+1DErnDWHjA== Date: Wed, 15 Jul 2026 09:21:16 +0300 From: Leon Romanovsky To: Samiullah Khawaja Cc: Marek Szyprowski , Will Deacon , Jason Gunthorpe , Pasha Tatashin , Mike Rapoport , Pratyush Yadav , Alexander Graf , Robin Murphy , Kevin Tian , iommu@lists.linux.dev, kexec@lists.infradead.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, David Matlack , Andrew Morton , Pranjal Shrivastava , Vipin Sharma Subject: Re: [RFC PATCH v2 03/10] dma: contiguous: Add API to check if an allocation is from CMA Message-ID: <20260715062116.GA21348@unreal> References: <20260708234854.4044652-1-skhawaja@google.com> <20260708234854.4044652-4-skhawaja@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260708234854.4044652-4-skhawaja@google.com> On Wed, Jul 08, 2026 at 11:48:47PM +0000, Samiullah Khawaja wrote: > Add an API that uses cma_for_each() to check whether a DMA allocation is > from a CMA region. > > Signed-off-by: Samiullah Khawaja > --- > include/linux/dma-map-ops.h | 6 ++++++ > kernel/dma/contiguous.c | 24 ++++++++++++++++++++++++ > 2 files changed, 30 insertions(+) <...> > #ifdef CONFIG_DMA_DECLARE_COHERENT > diff --git a/kernel/dma/contiguous.c b/kernel/dma/contiguous.c > index 03f52bd17120..0b1702bf39ca 100644 > --- a/kernel/dma/contiguous.c > +++ b/kernel/dma/contiguous.c > @@ -130,6 +130,30 @@ struct cma *dev_get_cma_area(struct device *dev) > } > EXPORT_SYMBOL_GPL(dev_get_cma_area); > > +struct dma_cma_check_data { > + phys_addr_t start; > + phys_addr_t end; > +}; If this series is retried, use "struct phys_vec" here instead of declaring a new structure: https://elixir.bootlin.com/linux/v7.1.3/source/include/linux/types.h#L173 Thanks.