From patchwork Thu Apr 8 09:20:10 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 12190353 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=-13.6 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 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 3A5F1C43470 for ; Thu, 8 Apr 2021 09:20:37 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id CF0EE61157 for ; Thu, 8 Apr 2021 09:20:36 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CF0EE61157 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 6D67F6B0080; Thu, 8 Apr 2021 05:20:36 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 686A66B0081; Thu, 8 Apr 2021 05:20:36 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 4DA2E6B0082; Thu, 8 Apr 2021 05:20:36 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0051.hostedemail.com [216.40.44.51]) by kanga.kvack.org (Postfix) with ESMTP id 326A76B0080 for ; Thu, 8 Apr 2021 05:20:36 -0400 (EDT) Received: from smtpin32.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id DCAA5182D93DB for ; Thu, 8 Apr 2021 09:20:35 +0000 (UTC) X-FDA: 78008654430.32.5C5FF42 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by imf26.hostedemail.com (Postfix) with ESMTP id C098740002D0 for ; Thu, 8 Apr 2021 09:20:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1617873635; 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=d0ekUImsTZau1bAPEDvtd4VEBVt+90KKsFuamUZCcWE=; b=ZKqJJkE/0mNYTX/VsEKJSxLeDRb5GgKv+l7RazImZsu3a3y66ITQ1SgQUZKDdLQ6OrD7Ci k35VsBi9XdX3/08av6v+UGtFqfyjkU93g/98whoMGZ4b+G+8GOzQTq2RXrMG3rjYtf4hRs BCiiKR0qAlgZxnAg8+uox5R6TDiN4Fk= 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-179-hJltZk7xPLOdIJAprlWYpA-1; Thu, 08 Apr 2021 05:20:30 -0400 X-MC-Unique: hJltZk7xPLOdIJAprlWYpA-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 5EEA5107ACE4; Thu, 8 Apr 2021 09:20:27 +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 EB426690F1; Thu, 8 Apr 2021 09:20:20 +0000 (UTC) From: David Hildenbrand To: linux-kernel@vger.kernel.org Cc: linux-mm@kvack.org, David Hildenbrand , Joel Stanley , David Airlie , Daniel Vetter , Andrew Jeffery , Lucas Stach , Russell King , Christian Gmeiner , Mike Rapoport , Arnd Bergmann , Bartlomiej Zolnierkiewicz , Linus Walleij , Michal Simek , Masahiro Yamada , Randy Dunlap , Peter Collingbourne , linux-aspeed@lists.ozlabs.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, etnaviv@lists.freedesktop.org, linux-fbdev@vger.kernel.org Subject: [PATCH v1 1/2] drivers/video/fbdev: don't select DMA_CMA Date: Thu, 8 Apr 2021 11:20:10 +0200 Message-Id: <20210408092011.52763-2-david@redhat.com> In-Reply-To: <20210408092011.52763-1-david@redhat.com> References: <20210408092011.52763-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 X-Rspamd-Queue-Id: C098740002D0 X-Stat-Signature: d7kqruqc7s4wyotg9igzz8ipczg3fcf6 X-Rspamd-Server: rspam02 Received-SPF: none (redhat.com>: No applicable sender policy available) receiver=imf26; identity=mailfrom; envelope-from=""; helo=us-smtp-delivery-124.mimecast.com; client-ip=216.205.24.124 X-HE-DKIM-Result: pass/pass X-HE-Tag: 1617873632-754205 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: 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 DRM_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.