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[2620:137:e000::1:20]) by mx.google.com with ESMTP id l7-20020a056402028700b005221dcc6470si3569938edv.591.2023.07.24.10.24.49; Mon, 24 Jul 2023 10:25:14 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@ravnborg.org header.s=rsa1 header.b=mbLhdXcp; dkim=neutral (no key) header.i=@ravnborg.org header.b=vJtbr9px; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230149AbjGXRLS (ORCPT + 99 others); Mon, 24 Jul 2023 13:11:18 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53196 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230052AbjGXRLO (ORCPT ); Mon, 24 Jul 2023 13:11:14 -0400 Received: from mailrelay1-1.pub.mailoutpod2-cph3.one.com (mailrelay1-1.pub.mailoutpod2-cph3.one.com [IPv6:2a02:2350:5:400::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6F917A9 for ; Mon, 24 Jul 2023 10:11:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ravnborg.org; s=rsa1; h=in-reply-to:content-type:mime-version:references:message-id:subject:cc:to: from:date:from; bh=k09OkZkHz1U1VJpY6ueOtE8II+8Lsf71u3vpE5oB4HY=; b=mbLhdXcpe+m4cljXsBMSeHpGFR5L46rZd8hu3zDt6nAoWl7hRAToRw1lszE1SV5swECwnAFZ4U3i4 0sphoUIXicxPD6QjvOE4xYiXgymFm/bBXDJ+wmRPY/G5LK45gxZ2WHqZiEI4CwgOH82x3Pvnnb5zbG bwjWKc9oohdXH1sugZLU/LcsA+dIicWKwhTHHil0UJwfZZqFA2w5vL/fY8xtvxJuagdvIXLMoOuErh rCVNrS+AEbwA2ADBDsGLEyyzKrXkjPwZbAHV0+0MZFuNrBAbYXcDTyruu2MIzPTarcZwFIGLrapkM6 UbsYRE2Wa24kbomENMQAID5gv97XXJA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=ravnborg.org; s=ed1; h=in-reply-to:content-type:mime-version:references:message-id:subject:cc:to: from:date:from; bh=k09OkZkHz1U1VJpY6ueOtE8II+8Lsf71u3vpE5oB4HY=; b=vJtbr9px1cBBxtrVUa5zxWMb4KYiUR048317wgr+Hr1oN3ehJ5elJQdNyPbN1N08tb8oSrhGfggzH cXrVKSkAg== X-HalOne-ID: 148c1359-2a45-11ee-8d86-99461c6a3fe8 Received: from ravnborg.org (2-105-2-98-cable.dk.customer.tdc.net [2.105.2.98]) by mailrelay1 (Halon) with ESMTPSA id 148c1359-2a45-11ee-8d86-99461c6a3fe8; Mon, 24 Jul 2023 17:11:10 +0000 (UTC) Date: Mon, 24 Jul 2023 19:11:08 +0200 From: Sam Ravnborg To: Arnd Bergmann Cc: Neil Armstrong , David Airlie , Daniel Vetter , Paul Cercueil , Arnd Bergmann , Linus Walleij , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] drm/panel: ld9040: add backlight Kconfig dependency Message-ID: <20230724171108.GA692753@ravnborg.org> References: <20230724121736.1293270-1-arnd@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230724121736.1293270-1-arnd@kernel.org> X-Spam-Status: No, score=-0.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_PASS,SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLACK autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jul 24, 2023 at 02:17:05PM +0200, Arnd Bergmann wrote: > From: Arnd Bergmann > > The driver now uses the backlight interface, which breaks when that > is disabled: > > ld.lld: error: undefined symbol: devm_backlight_device_register > > Enforce the necessary Kconfig dependency to avoid this. > > Fixes: c2268daa65fb4 ("drm/panel: ld9040: Register a backlight device") > Signed-off-by: Arnd Bergmann Reviewed-by: Sam Ravnborg I expect that someone else with drm-misc rights apply the patch. Sam