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mei: always initialize the callback with the intended operation type

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We set the operation type at initialization time as each cb is used only
for a single type of operation

As a byproduct we add a convenient wrapper for allocating cb with
the data buffer.

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
2015-02-10 10:39:43 +02:00
committed by Greg Kroah-Hartman
parent 5db7514d93
commit bca67d681c
6 changed files with 55 additions and 45 deletions
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7
drivers/misc/mei/client.h
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@@ -47,7 +47,8 @@ void mei_me_cl_rm_all(struct mei_device *dev);
/*
* MEI IO Functions
*/
struct mei_cl_cb *mei_io_cb_init(struct mei_cl *cl, struct file *fp);
struct mei_cl_cb *mei_io_cb_init(struct mei_cl *cl, enum mei_cb_file_ops type,
struct file *fp);
void mei_io_cb_free(struct mei_cl_cb *priv_cb);
int mei_io_cb_alloc_buf(struct mei_cl_cb *cb, size_t length);
@@ -77,6 +78,8 @@ int mei_cl_unlink(struct mei_cl *cl);
int mei_cl_flush_queues(struct mei_cl *cl);
struct mei_cl_cb *mei_cl_find_read_cb(struct mei_cl *cl);
struct mei_cl_cb *mei_cl_alloc_cb(struct mei_cl *cl, size_t length,
enum mei_cb_file_ops type, struct file *fp);
int mei_cl_flow_ctrl_creds(struct mei_cl *cl);
@@ -100,7 +103,7 @@ static inline bool mei_cl_is_transitioning(struct mei_cl *cl)
bool mei_cl_is_other_connecting(struct mei_cl *cl);
int mei_cl_disconnect(struct mei_cl *cl);
int mei_cl_connect(struct mei_cl *cl, struct file *file);
int mei_cl_read_start(struct mei_cl *cl, size_t length);
int mei_cl_read_start(struct mei_cl *cl, size_t length, struct file *fp);
int mei_cl_irq_read_msg(struct mei_cl *cl, struct mei_msg_hdr *hdr,
struct mei_cl_cb *cmpl_list);
int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking);