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mei: use structured buffer for extra write buffer

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The structure of the message is static so we don't have
to use and cast the buffer. We can also drop extra_write_index
variable as this information can be extracted directly
from the message header

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
2012-11-18 15:13:15 +02:00
committed by Greg Kroah-Hartman
parent 5bd6471441
commit 5fb54fb456
3 changed files with 22 additions and 27 deletions
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11
drivers/misc/mei/mei_dev.h
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@@ -192,8 +192,9 @@ struct mei_cl {
};
/**
* struct mei_deive - MEI private device struct
* struct mei_device - MEI private device struct
* @hbuf_depth - depth of host(write) buffer
* @wr_ext_msg - buffer for hbm control responses (set in read cycle)
*/
struct mei_device {
struct pci_dev *pdev; /* pointer to pci device struct */
@@ -244,11 +245,13 @@ struct mei_device {
u16 init_clients_timer;
bool need_reset;
u32 extra_write_index;
unsigned char rd_msg_buf[MEI_RD_MSG_BUF_SIZE]; /* control messages */
u32 wr_msg_buf[128]; /* used for control messages */
u32 ext_msg_buf[8]; /* for control responses */
u32 rd_msg_hdr;
u32 wr_msg_buf[128]; /* used for control messages */
struct {
struct mei_msg_hdr hdr;
unsigned char data[4]; /* All HBM messages are 4 bytes */
} wr_ext_msg; /* for control responses */
struct hbm_version version;