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 27A13339A8; Mon, 24 Nov 2025 17:26:31 +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=1764005193; cv=none; b=azpGG1y8j2h2CXvt7sSCiVhjcYic6Pq44b1cNZwIxdJSs8gsW5Iprb1EcCmgwnyKSdijlgbtOL4n9UaWETi+yEQ9YwIMYO/6tkhghe+n+xSOcADkyfDWPXCdOFMPHwDHQrmgcR6v9gnYH2qNjtUhLZj/UFC1cuM0wnwmmONLqKo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764005193; c=relaxed/simple; bh=aVrqKcWMLvnBW7SymhxnWtPBjLUHnuszbbFYOp0e8pU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=eexV5U9OxwIhFpSZjY1S3Isq8HZQmsjFdNzCQ+j9ZXa5cElyN9Rdiqakj/heIimHu5egmJDIInNyFGKSOlWW49RFIaCXFkh75gk3ph1Cxfz/wND/zQ9xG6vaCrFAA366S26ImmN6CpPJH9PVX8UcrXXcoxZGJSWAJfCVxlLEo8o= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=HBcQlI83; 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="HBcQlI83" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0BA1DC4CEF1; Mon, 24 Nov 2025 17:26:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1764005191; bh=aVrqKcWMLvnBW7SymhxnWtPBjLUHnuszbbFYOp0e8pU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=HBcQlI83IxUAzs9WJKfOTAkKHNmcpjD+DPQEKRpWVlky3kMb0GRG3RiAoe6GUhxe/ InlTIWWAhLZgwbqLkMbg4t+1HL56FxrkKDd9AdK4HfS8RDMIN/ZgZ/0SGmBGbJH6lJ ZuXqJKlLABE2eExlvH2e4rV4PG1OaZQZ9/9+hVkn7Y1TSuBMuCti3dnxvj384pSXTT qN0Zow9uH5V2+fj+vU3HMOwrpTWF8uI5P1o4fIz+r1R+T5/6D3Y3f+VaR775apBfub LyBGoyjbT0JRdr3CMFdII3XtkRgu6qC2E68rYusRP/M9Q/D6106JhxwtubLqpSASkA ZRJTs/W2t1+0w== Date: Mon, 24 Nov 2025 19:26:27 +0200 From: Leon Romanovsky To: Marek Szyprowski Cc: iommu@lists.linux.dev, linux-kernel@vger.kernel.org, Robin Murphy , Joerg Roedel , Will Deacon , Jason Gunthorpe Subject: Re: [PATCH] iommu/dma: add missing support for DMA_ATTR_MMIO for dma_iova_unlink() Message-ID: <20251124172627.GE12483@unreal> References: <20251124170955.3884351-1-m.szyprowski@samsung.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: <20251124170955.3884351-1-m.szyprowski@samsung.com> On Mon, Nov 24, 2025 at 06:09:55PM +0100, Marek Szyprowski wrote: > Commit c288d657dd51 added support for DMA_ATTR_MMIO attribute in the > dma_iova_link() code path, but missed that the CPU cache is being also > touched in the dma_iova_unlink() path. Fix this. > > Fixes: c288d657dd51 ("iommu/dma: implement DMA_ATTR_MMIO for dma_iova_link().") > Signed-off-by: Marek Szyprowski > --- > drivers/iommu/dma-iommu.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) > Thanks, Reviewed-by: Leon Romanovsky