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=-20.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,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 8B4BCC4332F for ; Fri, 24 Sep 2021 12:59:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 71F1F6187C for ; Fri, 24 Sep 2021 12:59:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345650AbhIXNBR (ORCPT ); Fri, 24 Sep 2021 09:01:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:52818 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344249AbhIXM7Q (ORCPT ); Fri, 24 Sep 2021 08:59:16 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 59F9E613D1; Fri, 24 Sep 2021 12:53:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1632487997; bh=Bf/aeYIkEm1YHA3Aw9sMLTbcN04JZS2bgcX2uMOo5R4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=F+XZfpUF4eP5y7BWeF76kE+qzWBLyaAXgKqR9EPC/w2oLZdWD5PBGy38b6fSvKhiD ToBzqgs84j3YtvCmxDsEi1Tw1OGDjhOlmv1oZc4KPuOFk/61SPnHXtwtSZro6Shphk FaFJ1gcIQzBeSuA/As57MxWkOC72dACb15KKFHJI= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Geert Uytterhoeven , Daniel Vetter , Sasha Levin Subject: [PATCH 5.14 044/100] dma-buf: DMABUF_MOVE_NOTIFY should depend on DMA_SHARED_BUFFER Date: Fri, 24 Sep 2021 14:43:53 +0200 Message-Id: <20210924124342.927019465@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210924124341.214446495@linuxfoundation.org> References: <20210924124341.214446495@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Geert Uytterhoeven [ Upstream commit c4f3a3460a5daebc772d9263500e4099b11e7300 ] Move notify between drivers is an option of DMA-BUF. Enabling DMABUF_MOVE_NOTIFY without DMA_SHARED_BUFFER does not have any impact, as drivers/dma-buf/ is not entered during the build when DMA_SHARED_BUFFER is disabled. Fixes: bb42df4662a44765 ("dma-buf: add dynamic DMA-buf handling v15") Signed-off-by: Geert Uytterhoeven Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210902124913.2698760-2-geert@linux-m68k.org Signed-off-by: Sasha Levin --- drivers/dma-buf/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/dma-buf/Kconfig b/drivers/dma-buf/Kconfig index 4e16c71c24b7..6e13cc941cd2 100644 --- a/drivers/dma-buf/Kconfig +++ b/drivers/dma-buf/Kconfig @@ -42,6 +42,7 @@ config UDMABUF config DMABUF_MOVE_NOTIFY bool "Move notify between drivers (EXPERIMENTAL)" default n + depends on DMA_SHARED_BUFFER help Don't pin buffers if the dynamic DMA-buf interface is available on both the exporter as well as the importer. This fixes a security -- 2.33.0