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mei: add mei_msg_hdr_init wrapper. 

Wrap the mei header boilerplate initialization code in
mei_msg_hdr_init function. On the way remove 'completed'
field from mei_cl_cb structure as this information
is already included in the header and is local to particular
fragment.

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 2018-07-23 13:21:24 +03:00 committed by Greg Kroah-Hartman
parent 8c8d964ce9
commit a1c4d08b6b
2 changed files with 20 additions and 15 deletions
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33
drivers/misc/mei/client.c
View File

@ -1539,6 +1539,22 @@ nortpm:
return rets;
}
/**
* mei_msg_hdr_init - initialize mei message header
*
* @mei_hdr: mei message header
* @cb: message callback structure
*/
static void mei_msg_hdr_init(struct mei_msg_hdr *mei_hdr, struct mei_cl_cb *cb)
{
mei_hdr->host_addr = mei_cl_host_addr(cb->cl);
mei_hdr->me_addr = mei_cl_me_id(cb->cl);
mei_hdr->length = 0;
mei_hdr->reserved = 0;
mei_hdr->msg_complete = 0;
mei_hdr->internal = cb->internal;
}
/**
* mei_cl_irq_write - write a message to device
* from the interrupt thread context
@ -1579,12 +1595,6 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
return 0;
}
mei_hdr.host_addr = mei_cl_host_addr(cl);
mei_hdr.me_addr = mei_cl_me_id(cl);
mei_hdr.reserved = 0;
mei_hdr.msg_complete = 0;
mei_hdr.internal = cb->internal;
len = buf->size - cb->buf_idx;
hbuf_slots = mei_hbuf_empty_slots(dev);
if (hbuf_slots < 0) {
@ -1593,6 +1603,8 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
}
hbuf_len = mei_slots2data(hbuf_slots) - sizeof(struct mei_msg_hdr);
mei_msg_hdr_init(&mei_hdr, cb);
/**
* Split the message only if we can write the whole host buffer
* otherwise wait for next time the host buffer is empty.
@ -1616,7 +1628,6 @@ int mei_cl_irq_write(struct mei_cl *cl, struct mei_cl_cb *cb,
cl->status = 0;
cl->writing_state = MEI_WRITING;
cb->buf_idx += mei_hdr.length;
cb->completed = mei_hdr.msg_complete == 1;
if (first_chunk) {
if (mei_cl_tx_flow_ctrl_creds_reduce(cl)) {
@ -1680,16 +1691,13 @@ ssize_t mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb)
cb->buf_idx = 0;
cl->writing_state = MEI_IDLE;
mei_hdr.host_addr = mei_cl_host_addr(cl);
mei_hdr.me_addr = mei_cl_me_id(cl);
mei_hdr.reserved = 0;
mei_hdr.msg_complete = 0;
mei_hdr.internal = cb->internal;
rets = mei_cl_tx_flow_ctrl_creds(cl);
if (rets < 0)
goto err;
mei_msg_hdr_init(&mei_hdr, cb);
if (rets == 0) {
cl_dbg(dev, cl, "No flow control credentials: not sending.\n");
rets = len;
@ -1726,7 +1734,6 @@ ssize_t mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb)
cl->writing_state = MEI_WRITING;
cb->buf_idx = mei_hdr.length;
cb->completed = mei_hdr.msg_complete == 1;
out:
if (mei_hdr.msg_complete)

2
drivers/misc/mei/mei_dev.h
View File

@ -175,7 +175,6 @@ struct mei_cl;
* @status: io status of the cb
* @internal: communication between driver and FW flag
* @blocking: transmission blocking mode
* @completed: the transfer or reception has completed
*/
struct mei_cl_cb {
struct list_head list;
@ -187,7 +186,6 @@ struct mei_cl_cb {
int status;
u32 internal:1;
u32 blocking:1;
u32 completed:1;
};
/**