From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1CB71C2D0CE for ; Sun, 29 Dec 2019 17:34:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E7CC720722 for ; Sun, 29 Dec 2019 17:34:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577640879; bh=TIF/9YV50EYEwGz2BonF9AsnNyGlH2YFHzvddhM6kbY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=QkI07DHLYvBVRrFZwPeQ2HTVDGN2DH2dOcA8IAp8I+q8C9909gM4seg3lOn93aBgN WV8C5oo6GRGT78Z2hDV0Co4GDvLUbVyP+8+bVlJbk/E0Db/SLz80t/qqxr3fqwGX1W 5352Ut3FnJBWz7+tcl/y/xck6Rlh0aUv4SMc67GY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729690AbfL2Reh (ORCPT ); Sun, 29 Dec 2019 12:34:37 -0500 Received: from mail.kernel.org ([198.145.29.99]:37892 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729674AbfL2Ree (ORCPT ); Sun, 29 Dec 2019 12:34:34 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 41263207FF; Sun, 29 Dec 2019 17:34:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577640873; bh=TIF/9YV50EYEwGz2BonF9AsnNyGlH2YFHzvddhM6kbY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qpfx8eQvvtXnYnK0vdg+ybvCd+QMvEZAb2U/DdkPYdgz6sG0ssOM+tEauqQFNx+8J mdUUPg7/7eitTDcW3uNa+YiE7FRQpF9C8BOrdcw6lB9x46PpV7/fXkYFbckYfRpQJ+ cWPfneCQwo9bqFuEurviaQiyC6pGkHux9V6FhCI4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Oleksandr Andrushchenko , Boris Ostrovsky , xen-devel@lists.xenproject.org, Juergen Gross , Stefano Stabellini , Jason Gunthorpe , Sasha Levin Subject: [PATCH 4.19 135/219] xen/gntdev: Use select for DMA_SHARED_BUFFER Date: Sun, 29 Dec 2019 18:18:57 +0100 Message-Id: <20191229162529.059565954@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191229162508.458551679@linuxfoundation.org> References: <20191229162508.458551679@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jason Gunthorpe [ Upstream commit fa6614d8ef13c63aac52ad7c07c5e69ce4aba3dd ] DMA_SHARED_BUFFER can not be enabled by the user (it represents a library set in the kernel). The kconfig convention is to use select for such symbols so they are turned on implicitly when the user enables a kconfig that needs them. Otherwise the XEN_GNTDEV_DMABUF kconfig is overly difficult to enable. Fixes: 932d6562179e ("xen/gntdev: Add initial support for dma-buf UAPI") Cc: Oleksandr Andrushchenko Cc: Boris Ostrovsky Cc: xen-devel@lists.xenproject.org Cc: Juergen Gross Cc: Stefano Stabellini Reviewed-by: Juergen Gross Reviewed-by: Oleksandr Andrushchenko Signed-off-by: Jason Gunthorpe Signed-off-by: Juergen Gross Signed-off-by: Sasha Levin --- drivers/xen/Kconfig | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index 90d387b50ab7..0505eeb593b5 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -158,7 +158,8 @@ config XEN_GNTDEV config XEN_GNTDEV_DMABUF bool "Add support for dma-buf grant access device driver extension" - depends on XEN_GNTDEV && XEN_GRANT_DMA_ALLOC && DMA_SHARED_BUFFER + depends on XEN_GNTDEV && XEN_GRANT_DMA_ALLOC + select DMA_SHARED_BUFFER help Allows userspace processes and kernel modules to use Xen backed dma-buf implementation. With this extension grant references to -- 2.20.1