From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9630FC47404 for ; Fri, 11 Oct 2019 13:29:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 700A52053B for ; Fri, 11 Oct 2019 13:29:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570800591; bh=s9Lnz55OyncGfdyGMjQLbALt1yjzFIgzbenA45U8yVc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=o+CQ+wFwJF/yOriM/0B2urdI+/zb09mKBVwvpRt//UaayQfGiA0h9C6KRClc4N0oB QHB8fVtZgpuBUJRl0zV0wdb2GVxjAV6ZvxaMQ0Io5d6/PiQSfq8FgunzDwYQ1p69GR a+PARDgDRa6Af7p9dtnDm9ZY/YHrqckF9xCTUWNY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728531AbfJKN3u (ORCPT ); Fri, 11 Oct 2019 09:29:50 -0400 Received: from mail.kernel.org ([198.145.29.99]:50148 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728392AbfJKN3s (ORCPT ); Fri, 11 Oct 2019 09:29:48 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 45C002089F; Fri, 11 Oct 2019 13:29:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1570800587; bh=s9Lnz55OyncGfdyGMjQLbALt1yjzFIgzbenA45U8yVc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gwy4noBfdxog9i2ATaFNQ5Z0RT1SZ7D4kM5xARWmBVPd5ahOeRdWJ4TUI6lOO5IqR 21lK1dUWnUAZ7BUVxKsVB9yyvYdrdScCEiDILeoCDYn2ehCSKpt2O6w/kTMSrt7dtt uutOXmhW4Rb3knsTj7sJ5BE9H3YpbiRjLBLPe7ug= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman Subject: [PATCH 3/8] debugfs: remove return value of debugfs_create_u64() Date: Fri, 11 Oct 2019 15:29:26 +0200 Message-Id: <20191011132931.1186197-3-gregkh@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191011132931.1186197-1-gregkh@linuxfoundation.org> References: <20191011132931.1186197-1-gregkh@linuxfoundation.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org No one checks the return value of debugfs_create_u64(), as it's not needed, so make the return value void, so that no one tries to do so in the future. Signed-off-by: Greg Kroah-Hartman --- Documentation/filesystems/debugfs.txt | 4 ++-- fs/debugfs/file.c | 15 +++------------ include/linux/debugfs.h | 12 ++++-------- 3 files changed, 9 insertions(+), 22 deletions(-) diff --git a/Documentation/filesystems/debugfs.txt b/Documentation/filesystems/debugfs.txt index 6abcf41fbd37..1b299ae4904d 100644 --- a/Documentation/filesystems/debugfs.txt +++ b/Documentation/filesystems/debugfs.txt @@ -74,8 +74,8 @@ created with any of: struct dentry *parent, u16 *value); struct dentry *debugfs_create_u32(const char *name, umode_t mode, struct dentry *parent, u32 *value); - struct dentry *debugfs_create_u64(const char *name, umode_t mode, - struct dentry *parent, u64 *value); + void debugfs_create_u64(const char *name, umode_t mode, + struct dentry *parent, u64 *value); These files support both reading and writing the given value; if a specific file should not be written to, simply set the mode bits accordingly. The diff --git a/fs/debugfs/file.c b/fs/debugfs/file.c index 8091a7ef3589..4c8912d7d34c 100644 --- a/fs/debugfs/file.c +++ b/fs/debugfs/file.c @@ -538,20 +538,11 @@ DEFINE_DEBUGFS_ATTRIBUTE(fops_u64_wo, NULL, debugfs_u64_set, "%llu\n"); * This function creates a file in debugfs with the given name that * contains the value of the variable @value. If the @mode variable is so * set, it can be read from, and written to. - * - * This function will return a pointer to a dentry if it succeeds. This - * pointer must be passed to the debugfs_remove() function when the file is - * to be removed (no automatic cleanup happens if your module is unloaded, - * you are responsible here.) If an error occurs, %ERR_PTR(-ERROR) will be - * returned. - * - * If debugfs is not enabled in the kernel, the value %ERR_PTR(-ENODEV) will - * be returned. */ -struct dentry *debugfs_create_u64(const char *name, umode_t mode, - struct dentry *parent, u64 *value) +void debugfs_create_u64(const char *name, umode_t mode, struct dentry *parent, + u64 *value) { - return debugfs_create_mode_unsafe(name, mode, parent, value, &fops_u64, + debugfs_create_mode_unsafe(name, mode, parent, value, &fops_u64, &fops_u64_ro, &fops_u64_wo); } EXPORT_SYMBOL_GPL(debugfs_create_u64); diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index c83a33a76b6c..b3bed4d61733 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -103,8 +103,8 @@ void debugfs_create_u16(const char *name, umode_t mode, struct dentry *parent, u16 *value); struct dentry *debugfs_create_u32(const char *name, umode_t mode, struct dentry *parent, u32 *value); -struct dentry *debugfs_create_u64(const char *name, umode_t mode, - struct dentry *parent, u64 *value); +void debugfs_create_u64(const char *name, umode_t mode, struct dentry *parent, + u64 *value); struct dentry *debugfs_create_ulong(const char *name, umode_t mode, struct dentry *parent, unsigned long *value); struct dentry *debugfs_create_x8(const char *name, umode_t mode, @@ -257,12 +257,8 @@ static inline struct dentry *debugfs_create_u32(const char *name, umode_t mode, return ERR_PTR(-ENODEV); } -static inline struct dentry *debugfs_create_u64(const char *name, umode_t mode, - struct dentry *parent, - u64 *value) -{ - return ERR_PTR(-ENODEV); -} +static inline void debugfs_create_u64(const char *name, umode_t mode, + struct dentry *parent, u64 *value) { } static inline struct dentry *debugfs_create_ulong(const char *name, umode_t mode, -- 2.23.0