From patchwork Mon Nov 4 08:21:21 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13861024 X-Patchwork-Delegate: kuba@kernel.org 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 123C4165F04; Mon, 4 Nov 2024 08:21:34 +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=1730708496; cv=none; b=gYOQPk05vYcjxYQfWuAh2C55CVR4KPg4VMqXTLQSaVzO7t6riwDtxqgJlKwJK/kl7PzqCbR2gxd0uyl+BGmxdfBtpeLYXgkJqoVu5HGpgUNlxvJO02aeLkGZ+6g32AsrObdTudbvbuib1GX14TnGK+BwJdIT5mlxR3HJPNnA2BA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730708496; c=relaxed/simple; bh=Uo6h7Rc21fEod+/+f108Uoio6Mmq+r3xbgnntl6Rrz0=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=Wr6jF593968DmpRHONn/7yqmoUyN24PIpMirkyOdCt1WG1e+YA9vaADjVYWyrTvTJHn9sKTr81GQ0qt3m/wWHtXz8Apg7y+2DXOZp8rJZH3acbltYLUqsrqg/F0BkCj2GH6mOD/Zn8nA6/HySKAmLuI6PiUf1anCGJsnhUSMueQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jRJXQAXX; 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="jRJXQAXX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9B584C4CECE; Mon, 4 Nov 2024 08:21:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730708494; bh=Uo6h7Rc21fEod+/+f108Uoio6Mmq+r3xbgnntl6Rrz0=; h=From:To:Cc:Subject:Date:From; b=jRJXQAXX1XKUiToBETTNS2k7JcMMk2yFiG2PVdgKsiXPy1yZQWXAxhWvHj94JUrHR LMj6P8+4Ky/9nL/aXLUqRE5FDJoOY0SlfPKWf3io50m4eg8E+3BMokCrfLKmlQgwob 47MbHKApiUSYLlxfE56blPt7cx9EB84eMHtFRSsLCjp8/U4Ppl/0GtMFoQXvCLKLYg rLzZ/lRDnALZu4/4fP5ZYDh+bP33b08lUPKoJkV9/BpjK2lPJ1/60axykwUVbkMXXM 2K/Wjda1SnbAj7EYu2U36rC7moJJrOvAyrBwiASXQzz/zidK1MV99Rz9R0t0UxeVLU wIr1lFyvDoIYQ== From: Arnd Bergmann To: Jian Shen , Salil Mehta Cc: Arnd Bergmann , Will Deacon , Joerg Roedel , Robin Murphy , iommu@lists.linux.dev, Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jijie Shao , Peiyang Wang , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH] [net-next] net: hns3: add IOMMU_SUPPORT dependency Date: Mon, 4 Nov 2024 09:21:21 +0100 Message-Id: <20241104082129.3142694-1-arnd@kernel.org> X-Mailer: git-send-email 2.39.5 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Patchwork-Delegate: kuba@kernel.org From: Arnd Bergmann The hns3 driver started filling iommu_iotlb_gather structures itself, which requires CONFIG_IOMMU_SUPPORT is enabled: drivers/net/ethernet/hisilicon/hns3/hns3_enet.c: In function 'hns3_dma_map_sync': drivers/net/ethernet/hisilicon/hns3/hns3_enet.c:395:14: error: 'struct iommu_iotlb_gather' has no member named 'start' 395 | iotlb_gather.start = iova; | ^ drivers/net/ethernet/hisilicon/hns3/hns3_enet.c:396:14: error: 'struct iommu_iotlb_gather' has no member named 'end' 396 | iotlb_gather.end = iova + granule - 1; | ^ drivers/net/ethernet/hisilicon/hns3/hns3_enet.c:397:14: error: 'struct iommu_iotlb_gather' has no member named 'pgsize' 397 | iotlb_gather.pgsize = granule; | ^ Add a Kconfig dependency to make it build in random configurations. Cc: Will Deacon Cc: Joerg Roedel Cc: Robin Murphy Cc: iommu@lists.linux.dev Fixes: f2c14899caba ("net: hns3: add sync command to sync io-pgtable") Signed-off-by: Arnd Bergmann --- I noticed that no other driver does this, so it would be good to have a confirmation from the iommu maintainers that this is how the interface and the dependency is intended to be used. --- drivers/net/ethernet/hisilicon/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/hisilicon/Kconfig b/drivers/net/ethernet/hisilicon/Kconfig index 65302c41bfb1..790efc8d2de6 100644 --- a/drivers/net/ethernet/hisilicon/Kconfig +++ b/drivers/net/ethernet/hisilicon/Kconfig @@ -91,6 +91,7 @@ config HNS_ENET config HNS3 tristate "Hisilicon Network Subsystem Support HNS3 (Framework)" depends on PCI + depends on IOMMU_SUPPORT select NET_DEVLINK select PAGE_POOL help