From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 D809C2DF122 for ; Mon, 12 Jan 2026 19:32:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768246332; cv=none; b=ENoaoRguIJPaRiYb0w46Yei0zG/fEWdqV8XK+emdsBb20u4uoDA6qk8E5Tq71117LEzRSleaJlskjaWYrH+4j+/6pWdBr9kRr3/Tw9KkjweMOLlGgCYAGDqajVUrJ/gVlB/vTpaeoAYwOHiSi+dTdWm06TIkq1omc0BqQmQ0cqI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768246332; c=relaxed/simple; bh=Cgs0Iid3CB2fSR2T7H1uIjojnsBHit8OyQ9XPBpYu0w=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=X0Q92sfo8q5VqsjDDeNj4eEZSdgPgcR8RdhszpTPXN/OYkkhTwJotR///YHCsrcLWGlGU/VEC8BM4JWJV5FSBE1AflLRxLK5t93LtuCuQOhG1ZXZp60m+UF/SGtJkd+TDhvwcVRT4oiIUG7U0E1g00UzrUHqjFQWXf38kqcFnLQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=j/IL0uF9; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="j/IL0uF9" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 143FEC116D0; Mon, 12 Jan 2026 19:32:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768246332; bh=Cgs0Iid3CB2fSR2T7H1uIjojnsBHit8OyQ9XPBpYu0w=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=j/IL0uF9F0OX/qhxxLaaD7L2ZjRepCGDawc12TuI27HnhSDHscuu9ZBiyLHKhxqEA 7OvA7cb7U9tE1hy52naK4hLJLmzTZhFT43QK8T1EBBKEntNr57n03Ej4EQNwAvEDv1 vDsL6D0O3PCxZVpgapbEi7hZ43x37cSrLuzSAiaJ2wDxgGJjLZKBZkRPm3W2cU8MaW Kyv8e3rk+lPWCPFTb3bvDOZLi2cgiRO2++lI0h47s4p599s1ODN8uLPDSdYp8FJv34 s7oZvT5rZ1+C2794OYA0tuL8MaWcLz3esSCqqear3Gd3zLdWzCfqsj5oQW0ofmVyK2 0Nj4eUDzBeioA== Message-ID: <8657edca-dcff-48d6-84a3-df23521a94a2@kernel.org> Date: Mon, 12 Jan 2026 20:32:05 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 2/3] mm_zone: Generalise has_managed_dma() To: Robin Murphy , m.szyprowski@samsung.com, akpm@linux-foundation.org, vbabka@suse.cz Cc: bhe@redhat.com, iommu@lists.linux-foundation.org, linux-mm@kvack.org, vladimir.kondratiev@mobileye.com, s-adivi@ti.com, linux-kernel@vger.kernel.org, lorenzo.stoakes@oracle.com, Liam.Howlett@oracle.com, rppt@kernel.org, surenb@google.com, mhocko@suse.com, jackmanb@google.com, hannes@cmpxchg.org, ziy@nvidia.com References: From: "David Hildenbrand (Red Hat)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 1/12/26 16:46, Robin Murphy wrote: > It would be useful to be able to check for potential DMA pages beyond > just ZONE_DMA - generalise the existing has_managed_dma() function to > allow checking other zones too. > > Signed-off-by: Robin Murphy > --- Acked-by: David Hildenbrand (Red Hat) -- Cheers David