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authorAlexander Usyskin <alexander.usyskin@intel.com>2014-02-17 15:13:23 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-18 10:05:33 -0800
commit12d0066526f386538de80b4d86d2008461b36674 (patch)
treefcde1b185663b1fecbb9ffc683c59baf2e6ca3ee /drivers/misc/mei
parenta27a76d3c07de08a0d0d298b6bc280c5b820e997 (diff)
downloadlinux-12d0066526f386538de80b4d86d2008461b36674.tar.bz2
mei: use helper function to find me client by id
We already have a helper to find me client by id, let's use it in all relevant places. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei')
-rw-r--r--drivers/misc/mei/client.c62
-rw-r--r--drivers/misc/mei/hbm.c42
2 files changed, 56 insertions, 48 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 539e861abc1e..3e62176a19a5 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -552,7 +552,8 @@ 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;
@@ -565,19 +566,19 @@ 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;
}
/**
@@ -593,32 +594,31 @@ 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 46743e2349b1..7e99e4149626 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;
}
/**