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=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 E3C93C3404D for ; Wed, 19 Feb 2020 08:49:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C2B0B208E4 for ; Wed, 19 Feb 2020 08:49:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726756AbgBSItw (ORCPT ); Wed, 19 Feb 2020 03:49:52 -0500 Received: from mx2.suse.de ([195.135.220.15]:49730 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726510AbgBSItw (ORCPT ); Wed, 19 Feb 2020 03:49:52 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id 2D75FACF2; Wed, 19 Feb 2020 08:49:51 +0000 (UTC) From: Jiri Slaby To: gregkh@linuxfoundation.org Cc: linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org, Jiri Slaby Subject: [PATCH 03/10] n_gsm: introduce enum gsm_dlci_mode Date: Wed, 19 Feb 2020 09:49:42 +0100 Message-Id: <20200219084949.28074-3-jslaby@suse.cz> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200219084949.28074-1-jslaby@suse.cz> References: <20200219084949.28074-1-jslaby@suse.cz> 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 gsm_dlci->mode is clearly an enumeration. So introduce one and use it -- compiler now checks if valid values are assigned to the field. Signed-off-by: Jiri Slaby --- drivers/tty/n_gsm.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c index 1d0a140027ff..7fee5a580f21 100644 --- a/drivers/tty/n_gsm.c +++ b/drivers/tty/n_gsm.c @@ -107,6 +107,11 @@ enum gsm_dlci_state { DLCI_CLOSING, /* Sending DISC not seen UA/DM */ }; +enum gsm_dlci_mode { + DLCI_MODE_ABM, /* Normal Asynchronous Balanced Mode */ + DLCI_MODE_ADM, /* Asynchronous Disconnected Mode */ +}; + /* * Each active data link has a gsm_dlci structure associated which ties * the link layer to an optional tty (if the tty side is open). To avoid @@ -124,9 +129,7 @@ struct gsm_dlci { struct mutex mutex; /* Link layer */ - int mode; -#define DLCI_MODE_ABM 0 /* Normal Asynchronous Balanced Mode */ -#define DLCI_MODE_ADM 1 /* Asynchronous Disconnected Mode */ + enum gsm_dlci_mode mode; spinlock_t lock; /* Protects the internal state */ struct timer_list t1; /* Retransmit timer for SABM and UA */ int retries; -- 2.25.0