From patchwork Wed Mar 16 19:20:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Randy Dunlap X-Patchwork-Id: 552125 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 7F9C3C41535 for ; Wed, 16 Mar 2022 19:20:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1357847AbiCPTVk (ORCPT ); Wed, 16 Mar 2022 15:21:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230130AbiCPTVh (ORCPT ); Wed, 16 Mar 2022 15:21:37 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 710C65FF32; Wed, 16 Mar 2022 12:20:20 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=bxcgHAl0Vjaoi9igyOuuv3t+bDn9tO/RrS7lBi/KU+M=; b=f6hRy706t/BpNpFO1C9Km2RrDC QpQAZACubPMNHVjc1Qg4uTBS8JBsSkx6wWoOO6MkPJLDnRMPb4gvs6j+IxwOBV3OSeMK+SM4Bc/qr cbVKkVwZ7HPLsk4PUNHYTJtLurqFWxXaUdf1VQas1wSqg474f4RVgG74C1IMA8nhCoibwkT0pOmOU GBglyb2fZdt3taUHK7+NnvqDf/kegkuSfBz7kIBCvuVIgmTmTlKHaYbML2syZZpq1QELYE2/RzZoa l0az3lska8YewVS5FuOdlrR7fZdGroVN4nksyhhqrm4CGqbCEJyDuxhNl+9rqNtKe/b3GXlgFM8kV vY7z0i7Q==; Received: from [2601:1c0:6280:3f0::aa0b] (helo=bombadil.infradead.org) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1nUZBy-00EArp-Bl; Wed, 16 Mar 2022 19:20:18 +0000 From: Randy Dunlap To: linux-kernel@vger.kernel.org Cc: Randy Dunlap , "Michael S. Tsirkin" , Jason Wang , Paolo Bonzini , Stefan Hajnoczi , Jens Axboe , Amit Shah , Arnd Bergmann , Greg Kroah-Hartman , Eli Cohen , Saeed Mahameed , Leon Romanovsky , Pablo Neira Ayuso , Jozsef Kadlecsik , Florian Westphal , "David S. Miller" , Jakub Kicinski , "James E.J. Bottomley" , "Martin K. Petersen" , Felipe Balbi , =?utf-8?b?TWljaGHFgiBNaXJvc8WC?= =?utf-8?b?YXc=?= , Sebastian Andrzej Siewior , Krzysztof Opasiak , Igor Kotrasinski , Valentina Manea , Shuah Khan , Shuah Khan , Jussi Kivilinna , Joachim Fritschi , Herbert Xu , Thomas Gleixner , Steven Rostedt , Ingo Molnar , Karol Herbst , Pekka Paalanen , Dave Hansen , Andy Lutomirski , Peter Zijlstra , Borislav Petkov , "H. Peter Anvin" , netfilter-devel@vger.kernel.org, coreteam@netfilter.org, netdev@vger.kernel.org, linux-block@vger.kernel.org, linux-crypto@vger.kernel.org, linux-rdma@vger.kernel.org, linux-scsi@vger.kernel.org, linux-usb@vger.kernel.org, nouveau@lists.freedesktop.org, virtualization@lists.linux-foundation.org, x86@kernel.org Subject: [PATCH 2/9] virtio_console: eliminate anonymous module_init & module_exit Date: Wed, 16 Mar 2022 12:20:03 -0700 Message-Id: <20220316192010.19001-3-rdunlap@infradead.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220316192010.19001-1-rdunlap@infradead.org> References: <20220316192010.19001-1-rdunlap@infradead.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org Eliminate anonymous module_init() and module_exit(), which can lead to confusion or ambiguity when reading System.map, crashes/oops/bugs, or an initcall_debug log. Give each of these init and exit functions unique driver-specific names to eliminate the anonymous names. Example 1: (System.map) ffffffff832fc78c t init ffffffff832fc79e t init ffffffff832fc8f8 t init Example 2: (initcall_debug log) calling init+0x0/0x12 @ 1 initcall init+0x0/0x12 returned 0 after 15 usecs calling init+0x0/0x60 @ 1 initcall init+0x0/0x60 returned 0 after 2 usecs calling init+0x0/0x9a @ 1 initcall init+0x0/0x9a returned 0 after 74 usecs Fixes: 31610434bc35 ("Virtio console driver") Fixes: 7177876fea83 ("virtio: console: Add ability to remove module") Signed-off-by: Randy Dunlap Cc: Amit Shah Cc: virtualization@lists.linux-foundation.org Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Reviewed-by: Amit Shah Acked-by: Michael S. Tsirkin --- drivers/char/virtio_console.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) --- lnx-517-rc8.orig/drivers/char/virtio_console.c +++ lnx-517-rc8/drivers/char/virtio_console.c @@ -2245,7 +2245,7 @@ static struct virtio_driver virtio_rproc .remove = virtcons_remove, }; -static int __init init(void) +static int __init virtio_console_init(void) { int err; @@ -2280,7 +2280,7 @@ free: return err; } -static void __exit fini(void) +static void __exit virtio_console_fini(void) { reclaim_dma_bufs(); @@ -2290,8 +2290,8 @@ static void __exit fini(void) class_destroy(pdrvdata.class); debugfs_remove_recursive(pdrvdata.debugfs_dir); } -module_init(init); -module_exit(fini); +module_init(virtio_console_init); +module_exit(virtio_console_fini); MODULE_DESCRIPTION("Virtio console driver"); MODULE_LICENSE("GPL");