From patchwork Thu Apr 8 10:05:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 12190521 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=-13.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 3C255C43462 for ; Thu, 8 Apr 2021 10:05:48 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 013306115B for ; Thu, 8 Apr 2021 10:05:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 013306115B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 5EE206EA63; Thu, 8 Apr 2021 10:05:47 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by gabe.freedesktop.org (Postfix) with ESMTPS id AB7896EA64 for ; Thu, 8 Apr 2021 10:05:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1617876344; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=3hIUGR7T1jq8/KKRgcERVMJAsaJS4XnhJM+Q6zBzCus=; b=Tl7UtTD/Dm2R2xqfJd2VMX6ElhyRcunUAH/h0rhmiJoCwEcKU60neE6K9gUq0twLh39bMb Djpq/5XDJ4poLMq3kAA1ItOft7hbhCoI3U03GEKwyw/Xp3+PE0yaoBk9tEr+977upEWr6K GT4WDcS1cxgj+0Y77KrERcv8i9Jc8oA= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-270-e2_tv6p3MD6q1cn0ApacPw-1; Thu, 08 Apr 2021 06:05:39 -0400 X-MC-Unique: e2_tv6p3MD6q1cn0ApacPw-1 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 4518B107ACCA; Thu, 8 Apr 2021 10:05:37 +0000 (UTC) Received: from t480s.redhat.com (ovpn-114-231.ams2.redhat.com [10.36.114.231]) by smtp.corp.redhat.com (Postfix) with ESMTP id D9E0B1972B; Thu, 8 Apr 2021 10:05:32 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Subject: [PATCH v2 1/2] drivers/video/fbdev: don't select DMA_CMA Date: Thu, 8 Apr 2021 12:05:22 +0200 Message-Id: <20210408100523.63356-2-david@redhat.com> In-Reply-To: <20210408100523.63356-1-david@redhat.com> References: <20210408100523.63356-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-fbdev@vger.kernel.org, linux-aspeed@lists.ozlabs.org, David Hildenbrand , David Airlie , dri-devel@lists.freedesktop.org, linux-mm@kvack.org, Masahiro Yamada , Michal Simek , Joel Stanley , Russell King , Arnd Bergmann , Bartlomiej Zolnierkiewicz , etnaviv@lists.freedesktop.org, Peter Collingbourne , linux-arm-kernel@lists.infradead.org, Andrew Jeffery , Randy Dunlap , Mike Rapoport Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Random drivers should not override a user configuration of core knobs (e.g., CONFIG_DMA_CMA=n). Use "imply" instead, to still respect dependencies and manual overrides. "This is similar to "select" as it enforces a lower limit on another symbol except that the "implied" symbol's value may still be set to n from a direct dependency or with a visible prompt." Implying DMA_CMA should be sufficient, as that depends on CMA. Note: If this is a real dependency, we should use "depends on DMA_CMA" instead - but I assume the driver can work without CMA just fine -- esp. when we wouldn't have HAVE_DMA_CONTIGUOUS or CMA right now. Signed-off-by: David Hildenbrand --- drivers/video/fbdev/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 4f02db65dede..d37cd5341e1b 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -2186,7 +2186,7 @@ config FB_HYPERV select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT select FB_DEFERRED_IO - select DMA_CMA if HAVE_DMA_CONTIGUOUS && CMA + imply DMA_CMA help This framebuffer driver supports Microsoft Hyper-V Synthetic Video.