From patchwork Mon Dec 19 19:18:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Allen Webb X-Patchwork-Id: 635403 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 51811C4167B for ; Mon, 19 Dec 2022 19:19:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232633AbiLSTTT (ORCPT ); Mon, 19 Dec 2022 14:19:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44238 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232518AbiLSTTF (ORCPT ); Mon, 19 Dec 2022 14:19:05 -0500 Received: from mail-il1-x149.google.com (mail-il1-x149.google.com [IPv6:2607:f8b0:4864:20::149]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9B13C12D09 for ; Mon, 19 Dec 2022 11:19:04 -0800 (PST) Received: by mail-il1-x149.google.com with SMTP id i14-20020a056e020d8e00b003034b93bd07so7116836ilj.14 for ; Mon, 19 Dec 2022 11:19:04 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=eqmNATfXsr4DizCCpcth0y0vfLVrabd2UB2TT6EQhwI=; b=nRXB21sdSHLfWpo7N4XIXagu8tN6MLNzEf/XK5MEcty8CuPQL5YMnsqfai5Q+IbdIF 14DWDkSr96sCp8k/zeJi6r+/dxB35qGUcm/v4Imy4LtNfr1hENCjQfCdPqCCXcw1NOpf X5brWGCUwXzedJ4uBBYdErJSmBmo9bZ+VhN4ropseS0jooJkefrkjJCxLUyqEg4yrqwA 2JbTOWGNMctd6cY471HxpoKlkDPq/qR70l7yRpzMa443BWcv5Z/L3CP/YeVU+uugx6+O 8OYloy1b30G4FeiksfDhGmD3kXgh7vcE1sRJe4lOtLajRMKuDx9f2PisIfIiQAmzA7uY UjYw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=eqmNATfXsr4DizCCpcth0y0vfLVrabd2UB2TT6EQhwI=; b=hf0bmYoUWfCTBh4X5PM/7LXDXZGSFcfA26PbNTOY183yFA1di6WA0niANWmaMpefew Ww4XzPGtGW6F/VrwiK37obSLHFbQyCnUCYNoR5PQeBedFDsp1PJWREeObaablnBhBWca OAXTD+QizObjaPHCA5w9o/CR0sIbe9FS6aH9AFFHEUuLmbl4l1CxQLG4wVWEpz0djJxo bE6g5eaNSPibiCau7rT/IhIJcnsD4ZqYHm5gI2KsmVhQM73FpxWdgGdqKBzDFO3kqQyB pwwIO6RdO7w5pJoU7ViKQPkFaZWF4kdlLNvcviyt3OA+vQsc+akwuYSie//HGDktU3QX WRrw== X-Gm-Message-State: ANoB5pn9/GtQWHEY26XKxoKgZ1WNASKVlBFOX39WhbCwm1EuPp5sQyZP JVA4dLgZJwoQbwJPOVwHb+WJJgCuTooxHxk= X-Google-Smtp-Source: AA0mqf6/69oC+XVcb8sc3AmTmcabYuhNR/zI/qvKBjqLFxGT52ZtwxDb0ia9EL4d7otrnLTHTSp8eFpx2JtnIhc= X-Received: from allenwebb.c.googlers.com ([fda3:e722:ac3:cc00:2b:ff92:c0a8:12e8]) (user=allenwebb job=sendgmr) by 2002:a05:6e02:1d84:b0:302:ce48:40ee with SMTP id h4-20020a056e021d8400b00302ce4840eemr35088599ila.157.1671477543996; Mon, 19 Dec 2022 11:19:03 -0800 (PST) Date: Mon, 19 Dec 2022 13:18:51 -0600 In-Reply-To: <20221219191855.2010466-1-allenwebb@google.com> Mime-Version: 1.0 References: <20221216221703.294683-1-allenwebb@google.com> <20221219191855.2010466-1-allenwebb@google.com> X-Mailer: git-send-email 2.39.0.314.g84b9a713c41-goog Message-ID: <20221219191855.2010466-6-allenwebb@google.com> Subject: [PATCH v8 5/9] module.h: MODULE_DEVICE_TABLE for built-in modules From: Allen Webb To: "linux-modules@vger.kernel.org" , "linux-usb@vger.kernel.org" , "linux-kernel@vger.kernel.org" Cc: Luis Chamberlain , Greg Kroah-Hartman , "Rafael J. Wysocki" , Allen Webb Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Implement MODULE_DEVICE_TABLE for build-in modules to make it possible to generate a builtin.alias file to complement modules.alias. Signed-off-by: Allen Webb --- include/linux/module.h | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/include/linux/module.h b/include/linux/module.h index ec61fb53979a9..3d1b04ca63505 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -243,7 +243,20 @@ extern void cleanup_module(void); extern typeof(name) __mod_##type##__##name##_device_table \ __attribute__ ((unused, alias(__stringify(name)))) #else /* !MODULE */ -#define MODULE_DEVICE_TABLE(type, name) +/* + * The names may not be unique for built-in modules, so include the module name + * to guarantee uniqueness. + * + * Note that extern is needed because modpost reads these symbols to generate + * modalias entries for each match id in each device table. They are not used + * at runtime. + */ +#define MODULE_DEVICE_TABLE(type, name) \ +extern void *CONCATENATE( \ + CONCATENATE(__mod_##type##__##name##__, \ + __KBUILD_MODNAME), \ + _device_table) \ + __attribute__ ((unused, alias(__stringify(name)))) #endif /* Version of form [:][-].