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=-9.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 7A16CC2D0D1 for ; Sun, 29 Dec 2019 17:52:14 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 51DC4206A4 for ; Sun, 29 Dec 2019 17:52:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="q83Xjd2T" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 51DC4206A4 Authentication-Results: mail.kernel.org; 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Sun, 29 Dec 2019 17:51:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577641902; bh=LE9cdr8eK35EQnzMPDAGO/gXk9BabTnFaFTDvZSMwoI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=q83Xjd2TYW0nIhxzxWJWsMpVZDOjpFZvPcikWHT2rIZenZFZsbU+sWz4SmTILk1TD /lfcEOeHtLuWG/FVQpZLChahx32Fuzpiv7DL/+G0Y+gbqJj1JLajemnOVM83+yLUUk 9PDJAdxEKT5Y+lkRx3TdakfUzH/AtZVXGMKG7euI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Date: Sun, 29 Dec 2019 18:25:12 +0100 Message-Id: <20191229172719.139077677@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191229172702.393141737@linuxfoundation.org> References: <20191229172702.393141737@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Subject: [Xen-devel] [PATCH 5.4 259/434] xen/gntdev: Use select for DMA_SHARED_BUFFER X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Juergen Gross , Sasha Levin , Stefano Stabellini , Oleksandr Andrushchenko , Greg Kroah-Hartman , stable@vger.kernel.org, Jason Gunthorpe , xen-devel@lists.xenproject.org, Boris Ostrovsky Content-Type: text/plain; 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Sun, 29 Dec 2019 17:51:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1577641902; bh=LE9cdr8eK35EQnzMPDAGO/gXk9BabTnFaFTDvZSMwoI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=q83Xjd2TYW0nIhxzxWJWsMpVZDOjpFZvPcikWHT2rIZenZFZsbU+sWz4SmTILk1TD /lfcEOeHtLuWG/FVQpZLChahx32Fuzpiv7DL/+G0Y+gbqJj1JLajemnOVM83+yLUUk 9PDJAdxEKT5Y+lkRx3TdakfUzH/AtZVXGMKG7euI= 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 5.4 259/434] xen/gntdev: Use select for DMA_SHARED_BUFFER Date: Sun, 29 Dec 2019 18:25:12 +0100 Message-Id: <20191229172719.139077677@linuxfoundation.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20191229172702.393141737@linuxfoundation.org> References: <20191229172702.393141737@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 79cc75096f42..a50dadd01093 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -141,7 +141,8 @@ 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