From patchwork Mon Oct 21 14:37:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 11202421 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BCD7C913 for ; Mon, 21 Oct 2019 14:38:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9AA4B20640 for ; Mon, 21 Oct 2019 14:38:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729423AbfJUOh4 (ORCPT ); Mon, 21 Oct 2019 10:37:56 -0400 Received: from xavier.telenet-ops.be ([195.130.132.52]:54264 "EHLO xavier.telenet-ops.be" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727211AbfJUOhz (ORCPT ); Mon, 21 Oct 2019 10:37:55 -0400 Received: from ramsan ([84.194.98.4]) by xavier.telenet-ops.be with bizsmtp id GEdo2100C05gfCL01Edox6; Mon, 21 Oct 2019 16:37:54 +0200 Received: from rox.of.borg ([192.168.97.57]) by ramsan with esmtp (Exim 4.90_1) (envelope-from ) id 1iMYoe-0007cx-CY; Mon, 21 Oct 2019 16:37:48 +0200 Received: from geert by rox.of.borg with local (Exim 4.90_1) (envelope-from ) id 1iMYoe-0003ma-AN; Mon, 21 Oct 2019 16:37:48 +0200 From: Geert Uytterhoeven To: Greg Kroah-Hartman , Ludovic Desroches , Ulf Hansson , Nicolas Ferre , Alexandre Belloni , Jaehoon Chung , "David S . Miller" , "Rafael J . Wysocki" , Johannes Berg Cc: linux-mmc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH 1/7] debugfs: Add debugfs_create_xul() for hexadecimal unsigned long Date: Mon, 21 Oct 2019 16:37:36 +0200 Message-Id: <20191021143742.14487-2-geert+renesas@glider.be> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191021143742.14487-1-geert+renesas@glider.be> References: <20191021143742.14487-1-geert+renesas@glider.be> Sender: linux-mmc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org The existing debugfs_create_ulong() function supports objects of type "unsigned long", which are 32-bit or 64-bit depending on the platform, in decimal form. To format objects in hexadecimal, various debugfs_create_x*() functions exist, but all of them take fixed-size types. Add a debugfs helper for "unsigned long" objects in hexadecimal format. This avoids the need for users to open-code the same, or introduce bugs when casting the value pointer to "u32 *" or "u64 *" to call debugfs_create_x{32,64}(). Signed-off-by: Geert Uytterhoeven --- include/linux/debugfs.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h index 33690949b45d6904..d7b2aebcc277d65e 100644 --- a/include/linux/debugfs.h +++ b/include/linux/debugfs.h @@ -356,4 +356,14 @@ static inline ssize_t debugfs_write_file_bool(struct file *file, #endif +static inline void debugfs_create_xul(const char *name, umode_t mode, + struct dentry *parent, + unsigned long *value) +{ + if (sizeof(*value) == sizeof(u32)) + debugfs_create_x32(name, mode, parent, (u32 *)value); + else + debugfs_create_x64(name, mode, parent, (u64 *)value); +} + #endif