From patchwork Mon Oct 17 19:51:17 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Javier Martinez Canillas X-Patchwork-Id: 9380387 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 5E821600CA for ; Mon, 17 Oct 2016 19:51:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4CB412911B for ; Mon, 17 Oct 2016 19:51:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 413682917A; Mon, 17 Oct 2016 19:51:34 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1BCAE2911B for ; Mon, 17 Oct 2016 19:51:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756007AbcJQTvb (ORCPT ); Mon, 17 Oct 2016 15:51:31 -0400 Received: from ec2-52-27-115-49.us-west-2.compute.amazonaws.com ([52.27.115.49]:37588 "EHLO s-opensource.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757682AbcJQTva (ORCPT ); Mon, 17 Oct 2016 15:51:30 -0400 Received: from localhost (localhost [127.0.0.1]) by s-opensource.com (Postfix) with ESMTP id 22854A0E7A; Mon, 17 Oct 2016 19:51:37 +0000 (UTC) X-Virus-Scanned: amavisd-new at osg.samsung.com Received: from s-opensource.com ([127.0.0.1]) by localhost (s-opensource.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id kryP4kx7Q0xh; Mon, 17 Oct 2016 19:51:36 +0000 (UTC) Received: from minerva.sisa.samsung.com (unknown [181.121.136.80]) by s-opensource.com (Postfix) with ESMTPSA id 1165FA0DFA; Mon, 17 Oct 2016 19:51:31 +0000 (UTC) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Jason Gunthorpe , Javier Martinez Canillas , Kevin Hilman , Neil Armstrong , PrasannaKumar Muralidharan , Carlo Caione , linux-amlogic@lists.infradead.org, Herbert Xu , Matt Mackall , linux-arm-kernel@lists.infradead.org, linux-crypto@vger.kernel.org Subject: [PATCH v2] hwrng: meson: Fix module autoload for OF registration Date: Mon, 17 Oct 2016 16:51:17 -0300 Message-Id: <1476733877-20275-1-git-send-email-javier@osg.samsung.com> X-Mailer: git-send-email 2.7.4 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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/char/hw_random/meson-rng.ko | grep alias alias: platform:meson-rng After this patch: $ modinfo drivers/char/hw_random/meson-rng.ko | grep alias alias: platform:meson-rng alias: of:N*T*Camlogic,meson-rngC* alias: of:N*T*Camlogic,meson-rng Signed-off-by: Javier Martinez Canillas Acked-by: Neil Armstrong --- Changes in v2: - Remove unrelated changes added by mistake. Suggested by Jason Gunthorpe. drivers/char/hw_random/meson-rng.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/char/hw_random/meson-rng.c b/drivers/char/hw_random/meson-rng.c index 58bef39f7286..51864a509be7 100644 --- a/drivers/char/hw_random/meson-rng.c +++ b/drivers/char/hw_random/meson-rng.c @@ -110,6 +110,7 @@ static const struct of_device_id meson_rng_of_match[] = { { .compatible = "amlogic,meson-rng", }, {}, }; +MODULE_DEVICE_TABLE(of, meson_rng_of_match); static struct platform_driver meson_rng_driver = { .probe = meson_rng_probe,