From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753556AbaBQNPK (ORCPT ); Mon, 17 Feb 2014 08:15:10 -0500 Received: from mga02.intel.com ([134.134.136.20]:45352 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753248AbaBQNPA (ORCPT ); Mon, 17 Feb 2014 08:15:00 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.95,860,1384329600"; d="scan'208";a="456852922" From: Tomas Winkler To: gregkh@linuxfoundation.org Cc: arnd@arndb.de, linux-kernel@vger.kernel.org, Alexander Usyskin , Tomas Winkler Subject: [char-misc-next 07/11] mei: use helper function to find me client by id Date: Mon, 17 Feb 2014 15:13:23 +0200 Message-Id: <1392642807-8878-8-git-send-email-tomas.winkler@intel.com> X-Mailer: git-send-email 1.8.5.3 In-Reply-To: <1392642807-8878-1-git-send-email-tomas.winkler@intel.com> References: <1392642807-8878-1-git-send-email-tomas.winkler@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Alexander Usyskin We already have a helper to find me client by id, let's use it in all relevant places. Signed-off-by: Alexander Usyskin Signed-off-by: Tomas Winkler --- drivers/misc/mei/client.c | 62 +++++++++++++++++++++++------------------------ drivers/misc/mei/hbm.c | 42 +++++++++++++++++++------------- 2 files changed, 56 insertions(+), 48 deletions(-) diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index 488edd0..35c84ac 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -567,7 +567,8 @@ out: int mei_cl_flow_ctrl_creds(struct mei_cl *cl) { struct mei_device *dev; - int i; + struct mei_me_client *me_cl; + int id; if (WARN_ON(!cl || !cl->dev)) return -EINVAL; @@ -580,19 +581,19 @@ int mei_cl_flow_ctrl_creds(struct mei_cl *cl) if (cl->mei_flow_ctrl_creds > 0) return 1; - for (i = 0; i < dev->me_clients_num; i++) { - struct mei_me_client *me_cl = &dev->me_clients[i]; - if (me_cl->client_id == cl->me_client_id) { - if (me_cl->mei_flow_ctrl_creds) { - if (WARN_ON(me_cl->props.single_recv_buf == 0)) - return -EINVAL; - return 1; - } else { - return 0; - } - } + id = mei_me_cl_by_id(dev, cl->me_client_id); + if (id < 0) { + cl_err(dev, cl, "no such me client %d\n", cl->me_client_id); + return id; } - return -ENOENT; + + me_cl = &dev->me_clients[id]; + if (me_cl->mei_flow_ctrl_creds) { + if (WARN_ON(me_cl->props.single_recv_buf == 0)) + return -EINVAL; + return 1; + } + return 0; } /** @@ -608,32 +609,31 @@ int mei_cl_flow_ctrl_creds(struct mei_cl *cl) int mei_cl_flow_ctrl_reduce(struct mei_cl *cl) { struct mei_device *dev; - int i; + struct mei_me_client *me_cl; + int id; if (WARN_ON(!cl || !cl->dev)) return -EINVAL; dev = cl->dev; - if (!dev->me_clients_num) - return -ENOENT; + id = mei_me_cl_by_id(dev, cl->me_client_id); + if (id < 0) { + cl_err(dev, cl, "no such me client %d\n", cl->me_client_id); + return id; + } - for (i = 0; i < dev->me_clients_num; i++) { - struct mei_me_client *me_cl = &dev->me_clients[i]; - if (me_cl->client_id == cl->me_client_id) { - if (me_cl->props.single_recv_buf != 0) { - if (WARN_ON(me_cl->mei_flow_ctrl_creds <= 0)) - return -EINVAL; - dev->me_clients[i].mei_flow_ctrl_creds--; - } else { - if (WARN_ON(cl->mei_flow_ctrl_creds <= 0)) - return -EINVAL; - cl->mei_flow_ctrl_creds--; - } - return 0; - } + me_cl = &dev->me_clients[id]; + if (me_cl->props.single_recv_buf != 0) { + if (WARN_ON(me_cl->mei_flow_ctrl_creds <= 0)) + return -EINVAL; + me_cl->mei_flow_ctrl_creds--; + } else { + if (WARN_ON(cl->mei_flow_ctrl_creds <= 0)) + return -EINVAL; + cl->mei_flow_ctrl_creds--; } - return -ENOENT; + return 0; } /** diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c index 46743e2..7e99e41 100644 --- a/drivers/misc/mei/hbm.c +++ b/drivers/misc/mei/hbm.c @@ -22,6 +22,7 @@ #include "mei_dev.h" #include "hbm.h" #include "hw-me.h" +#include "client.h" static const char *mei_cl_conn_status_str(enum mei_cl_connect_status status) { @@ -340,27 +341,34 @@ int mei_hbm_cl_flow_control_req(struct mei_device *dev, struct mei_cl *cl) * * @dev: the device structure * @flow: flow control. + * + * return 0 on success, < 0 otherwise */ -static void mei_hbm_add_single_flow_creds(struct mei_device *dev, +static int mei_hbm_add_single_flow_creds(struct mei_device *dev, struct hbm_flow_control *flow) { - struct mei_me_client *client; - int i; - - for (i = 0; i < dev->me_clients_num; i++) { - client = &dev->me_clients[i]; - if (client && flow->me_addr == client->client_id) { - if (client->props.single_recv_buf) { - client->mei_flow_ctrl_creds++; - dev_dbg(&dev->pdev->dev, "recv flow ctrl msg ME %d (single).\n", - flow->me_addr); - dev_dbg(&dev->pdev->dev, "flow control credentials =%d.\n", - client->mei_flow_ctrl_creds); - } else { - BUG(); /* error in flow control */ - } - } + struct mei_me_client *me_cl; + int id; + + id = mei_me_cl_by_id(dev, flow->me_addr); + if (id < 0) { + dev_err(&dev->pdev->dev, "no such me client %d\n", + flow->me_addr); + return id; } + + me_cl = &dev->me_clients[id]; + if (me_cl->props.single_recv_buf) { + me_cl->mei_flow_ctrl_creds++; + dev_dbg(&dev->pdev->dev, "recv flow ctrl msg ME %d (single).\n", + flow->me_addr); + dev_dbg(&dev->pdev->dev, "flow control credentials =%d.\n", + me_cl->mei_flow_ctrl_creds); + } else { + BUG(); /* error in flow control */ + } + + return 0; } /** -- 1.8.5.3