From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S937562AbdCJNdd (ORCPT ); Fri, 10 Mar 2017 08:33:33 -0500 Received: from ec2-52-27-115-49.us-west-2.compute.amazonaws.com ([52.27.115.49]:54414 "EHLO osg.samsung.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S937534AbdCJNd2 (ORCPT ); Fri, 10 Mar 2017 08:33:28 -0500 From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: James Hogan , Ralf Baechle , Dmitry Torokhov , Andrew Morton , Javier Martinez Canillas , Miguel Ojeda Sandonis , Paul Burton Subject: [RESEND PATCH 2/2] auxdisplay: img-ascii-lcd: Fix module autoload Date: Fri, 10 Mar 2017 10:33:07 -0300 Message-Id: <20170310133307.10254-3-javier@osg.samsung.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170310133307.10254-1-javier@osg.samsung.com> References: <20170310133307.10254-1-javier@osg.samsung.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org If the driver is built as a module, autoload won't work because the module alias information is not filled. So user-space can't match the registered device with the corresponding module. Export the module alias information using the MODULE_DEVICE_TABLE() macro. Before this patch: $ modinfo drivers/auxdisplay/img-ascii-lcd.ko | grep alias $ After this patch: $ modinfo drivers/auxdisplay/img-ascii-lcd.ko | grep alias alias: of:N*T*Cmti,sead3-lcdC* alias: of:N*T*Cmti,sead3-lcd alias: of:N*T*Cmti,malta-lcdC* alias: of:N*T*Cmti,malta-lcd alias: of:N*T*Cimg,boston-lcdC* alias: of:N*T*Cimg,boston-lcd Signed-off-by: Javier Martinez Canillas --- drivers/auxdisplay/img-ascii-lcd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/auxdisplay/img-ascii-lcd.c b/drivers/auxdisplay/img-ascii-lcd.c index 73bc826144d4..55b792e9275d 100644 --- a/drivers/auxdisplay/img-ascii-lcd.c +++ b/drivers/auxdisplay/img-ascii-lcd.c @@ -220,6 +220,7 @@ static const struct of_device_id img_ascii_lcd_matches[] = { { .compatible = "mti,sead3-lcd", .data = &sead3_config }, { /* sentinel */ }, }; +MODULE_DEVICE_TABLE(of, img_ascii_lcd_matches); /** * img_ascii_lcd_scroll() - scroll the display by a character -- 2.9.3