From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752236AbdFARJ7 (ORCPT ); Thu, 1 Jun 2017 13:09:59 -0400 Received: from shadbolt.e.decadent.org.uk ([88.96.1.126]:60761 "EHLO shadbolt.e.decadent.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751170AbdFAPmy (ORCPT ); Thu, 1 Jun 2017 11:42:54 -0400 Content-Type: text/plain; charset="UTF-8" Content-Disposition: inline Content-Transfer-Encoding: 8bit MIME-Version: 1.0 From: Ben Hutchings To: linux-kernel@vger.kernel.org, stable@vger.kernel.org CC: akpm@linux-foundation.org, "Javier Martinez Canillas" , "Greg Kroah-Hartman" , "Bjorn Andersson" Date: Thu, 01 Jun 2017 16:40:55 +0100 Message-ID: X-Mailer: LinuxStableQueue (scripts by bwh) Subject: [PATCH 3.2 002/101] tty: serial: msm: Fix module autoload In-Reply-To: X-SA-Exim-Connect-IP: 82.70.136.246 X-SA-Exim-Mail-From: ben@decadent.org.uk X-SA-Exim-Scanned: No (on shadbolt.decadent.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.2.89-rc1 review patch. If anyone has any objections, please let me know. ------------------ From: Javier Martinez Canillas commit abe81f3b8ed2996e1712d26d38ff6b73f582c616 upstream. 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/tty/serial/msm_serial.ko | grep alias $ After this patch: $ modinfo drivers/tty/serial/msm_serial.ko | grep alias alias: of:N*T*Cqcom,msm-uartdmC* alias: of:N*T*Cqcom,msm-uartdm alias: of:N*T*Cqcom,msm-uartC* alias: of:N*T*Cqcom,msm-uart Signed-off-by: Javier Martinez Canillas Acked-by: Bjorn Andersson Signed-off-by: Greg Kroah-Hartman Signed-off-by: Ben Hutchings --- drivers/tty/serial/msm_serial.c | 1 + 1 file changed, 1 insertion(+) --- a/drivers/tty/serial/msm_serial.c +++ b/drivers/tty/serial/msm_serial.c @@ -930,6 +930,7 @@ static struct of_device_id msm_match_tab { .compatible = "qcom,msm-uart" }, {} }; +MODULE_DEVICE_TABLE(of, msm_match_table); static struct platform_driver msm_platform_driver = { .remove = msm_serial_remove,