From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753485AbbCZW3T (ORCPT ); Thu, 26 Mar 2015 18:29:19 -0400 Received: from mga01.intel.com ([192.55.52.88]:27676 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752868AbbCZW3K (ORCPT ); Thu, 26 Mar 2015 18:29:10 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.11,475,1422950400"; d="scan'208";a="473277957" From: Tomas Winkler To: gregkh@linuxfoundation.org Cc: arnd@arndb.de, linux-kernel@vger.kernel.org, Tomas Winkler Subject: [char-misc-next 03/11] mei: replace check for connection instead of transitioning Date: Fri, 27 Mar 2015 00:27:59 +0200 Message-Id: <1427408887-27979-3-git-send-email-tomas.winkler@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1427408887-27979-1-git-send-email-tomas.winkler@intel.com> References: <1427408887-27979-1-git-send-email-tomas.winkler@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The function mei_cl_is_transitioning is just opposite of mei_cl_is_connected. What we actually wanted to check is if we lost connection so we can discard the check for transition and check for 'not connected' Signed-off-by: Tomas Winkler --- drivers/misc/mei/bus.c | 4 ++-- drivers/misc/mei/client.h | 14 ++++++++------ drivers/misc/mei/main.c | 4 ++-- 3 files changed, 12 insertions(+), 10 deletions(-) diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index b724a67696fc..4cf38c39878a 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -302,7 +302,7 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length) if (wait_event_interruptible(cl->rx_wait, (!list_empty(&cl->rd_completed)) || - mei_cl_is_transitioning(cl))) { + (!mei_cl_is_connected(cl)))) { if (signal_pending(current)) return -EINTR; @@ -311,7 +311,7 @@ ssize_t __mei_cl_recv(struct mei_cl *cl, u8 *buf, size_t length) mutex_lock(&dev->device_lock); - if (mei_cl_is_transitioning(cl)) { + if (!mei_cl_is_connected(cl)) { rets = -EBUSY; goto out; } diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h index 7800d1bd8ba1..0a39e5d45171 100644 --- a/drivers/misc/mei/client.h +++ b/drivers/misc/mei/client.h @@ -90,16 +90,18 @@ int mei_cl_flow_ctrl_reduce(struct mei_cl *cl); /* * MEI input output function prototype */ + +/** + * mei_cl_is_connected - host client is connected + * + * @cl: host clinet + * + * Return: true if the host clinet is connected + */ static inline bool mei_cl_is_connected(struct mei_cl *cl) { return cl->state == MEI_FILE_CONNECTED; } -static inline bool mei_cl_is_transitioning(struct mei_cl *cl) -{ - return MEI_FILE_INITIALIZING == cl->state || - MEI_FILE_DISCONNECTED == cl->state || - MEI_FILE_DISCONNECTING == cl->state; -} bool mei_cl_is_other_connecting(struct mei_cl *cl); int mei_cl_disconnect(struct mei_cl *cl); diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index 29fa88b6fa17..7f77f39c24a7 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -203,7 +203,7 @@ static ssize_t mei_read(struct file *file, char __user *ubuf, if (wait_event_interruptible(cl->rx_wait, (!list_empty(&cl->rd_completed)) || - mei_cl_is_transitioning(cl))) { + (!mei_cl_is_connected(cl)))) { if (signal_pending(current)) return -EINTR; @@ -211,7 +211,7 @@ static ssize_t mei_read(struct file *file, char __user *ubuf, } mutex_lock(&dev->device_lock); - if (mei_cl_is_transitioning(cl)) { + if (!mei_cl_is_connected(cl)) { rets = -EBUSY; goto out; } -- 1.9.3