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mei: get rid of ext_msg

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Use more standard message writing for
oob data.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Tomas Winkler
2014-02-12 21:41:52 +02:00
committed by Greg Kroah-Hartman
parent 02a7eecc6e
commit 6bb948c9e5
6 changed files with 88 additions and 36 deletions
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47
drivers/misc/mei/interrupt.c
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@@ -160,6 +160,41 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
return 0;
}
/**
* mei_cl_irq_disconnect_rsp - send disconnection response message
*
* @cl: client
* @cb: callback block.
* @slots: free slots.
* @cmpl_list: complete list.
*
* returns 0, OK; otherwise, error.
*/
static int mei_cl_irq_disconnect_rsp(struct mei_cl *cl, struct mei_cl_cb *cb,
s32 *slots, struct mei_cl_cb *cmpl_list)
{
struct mei_device *dev = cl->dev;
int ret;
u32 msg_slots =
mei_data2slots(sizeof(struct hbm_client_connect_response));
if (*slots < msg_slots)
return -EMSGSIZE;
*slots -= msg_slots;
ret = mei_hbm_cl_disconnect_rsp(dev, cl);
cl->state = MEI_FILE_DISCONNECTED;
cl->status = 0;
mei_io_cb_free(cb);
return ret;
}
/**
* mei_cl_irq_close - processes close related operation from
* interrupt thread context - send disconnect request
@@ -452,12 +487,6 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
wake_up_interruptible(&dev->wait_stop_wd);
}
if (dev->wr_ext_msg.hdr.length) {
mei_write_message(dev, &dev->wr_ext_msg.hdr,
dev->wr_ext_msg.data);
slots -= mei_data2slots(dev->wr_ext_msg.hdr.length);
dev->wr_ext_msg.hdr.length = 0;
}
if (dev->dev_state == MEI_DEV_ENABLED) {
if (dev->wd_pending &&
mei_cl_flow_ctrl_creds(&dev->wd_cl) > 0) {
@@ -505,7 +534,11 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
return ret;
break;
case MEI_FOP_DISCONNECT_RSP:
/* send disconnect resp */
ret = mei_cl_irq_disconnect_rsp(cl, cb, &slots, cmpl_list);
if (ret)
return ret;
default:
BUG();
}