diff options
| -rw-r--r-- | drivers/staging/mei/interface.c | 23 | ||||
| -rw-r--r-- | drivers/staging/mei/interface.h | 3 | ||||
| -rw-r--r-- | drivers/staging/mei/interrupt.c | 16 | ||||
| -rw-r--r-- | drivers/staging/mei/mei_dev.h | 6 |
4 files changed, 18 insertions, 30 deletions
diff --git a/drivers/staging/mei/interface.c b/drivers/staging/mei/interface.c index 951e61f427b8..484be56a6594 100644 --- a/drivers/staging/mei/interface.c +++ b/drivers/staging/mei/interface.c @@ -215,26 +215,17 @@ int mei_count_full_read_slots(struct mei_device *dev) * @buffer: message buffer will be written * @buffer_length: message size will be read */ -void mei_read_slots(struct mei_device *dev, - unsigned char *buffer, unsigned long buffer_length) +void mei_read_slots(struct mei_device *dev, unsigned char *buffer, + unsigned long buffer_length) { - u32 i = 0; - unsigned char temp_buf[sizeof(u32)]; + u32 *reg_buf = (u32 *)buffer; - while (buffer_length >= sizeof(u32)) { - ((u32 *) buffer)[i] = mei_mecbrw_read(dev); - - dev_dbg(&dev->pdev->dev, - "buffer[%d]= %d\n", - i, ((u32 *) buffer)[i]); - - i++; - buffer_length -= sizeof(u32); - } + for (; buffer_length >= sizeof(u32); buffer_length -= sizeof(u32)) + *reg_buf++ = mei_mecbrw_read(dev); if (buffer_length > 0) { - *((u32 *) &temp_buf) = mei_mecbrw_read(dev); - memcpy(&buffer[i * 4], temp_buf, buffer_length); + u32 reg = mei_mecbrw_read(dev); + memcpy(reg_buf, ®, buffer_length); } dev->host_hw_state |= H_IG; diff --git a/drivers/staging/mei/interface.h b/drivers/staging/mei/interface.h index 392987469e3b..e5bfb18865fc 100644 --- a/drivers/staging/mei/interface.h +++ b/drivers/staging/mei/interface.h @@ -33,7 +33,8 @@ void mei_read_slots(struct mei_device *dev, - unsigned char *buffer, unsigned long buffer_length); + unsigned char *buffer, + unsigned long buffer_length); int mei_write_message(struct mei_device *dev, struct mei_msg_hdr *header, diff --git a/drivers/staging/mei/interrupt.c b/drivers/staging/mei/interrupt.c index 8e16e9485604..3c21c93af8ea 100644 --- a/drivers/staging/mei/interrupt.c +++ b/drivers/staging/mei/interrupt.c @@ -123,8 +123,7 @@ static int mei_irq_thread_read_amthi_message(struct mei_io_list *complete_list, BUG_ON(mei_hdr->me_addr != dev->iamthif_cl.me_client_id); BUG_ON(dev->iamthif_state != MEI_IAMTHIF_READING); - buffer = (unsigned char *) (dev->iamthif_msg_buf + - dev->iamthif_msg_buf_index); + buffer = dev->iamthif_msg_buf + dev->iamthif_msg_buf_index; BUG_ON(dev->iamthif_mtu < dev->iamthif_msg_buf_index + mei_hdr->length); mei_read_slots(dev, buffer, mei_hdr->length); @@ -206,9 +205,7 @@ static int mei_irq_thread_read_client_message(struct mei_io_list *complete_list, cl = (struct mei_cl *)cb_pos->file_private; if (cl && _mei_irq_thread_state_ok(cl, mei_hdr)) { cl->reading_state = MEI_READING; - buffer = (unsigned char *) - (cb_pos->response_buffer.data + - cb_pos->information); + buffer = cb_pos->response_buffer.data + cb_pos->information; if (cb_pos->response_buffer.size < mei_hdr->length + cb_pos->information) { @@ -247,8 +244,7 @@ static int mei_irq_thread_read_client_message(struct mei_io_list *complete_list, quit: dev_dbg(&dev->pdev->dev, "message read\n"); if (!buffer) { - mei_read_slots(dev, (unsigned char *) dev->rd_msg_buf, - mei_hdr->length); + mei_read_slots(dev, dev->rd_msg_buf, mei_hdr->length); dev_dbg(&dev->pdev->dev, "discarding message, header =%08x.\n", *(u32 *) dev->rd_msg_buf); } @@ -632,13 +628,11 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev, struct hbm_host_stop_request *host_stop_req; int res; - unsigned char *buffer; /* read the message to our buffer */ - buffer = (unsigned char *) dev->rd_msg_buf; BUG_ON(mei_hdr->length >= sizeof(dev->rd_msg_buf)); - mei_read_slots(dev, buffer, mei_hdr->length); - mei_msg = (struct mei_bus_message *) buffer; + mei_read_slots(dev, dev->rd_msg_buf, mei_hdr->length); + mei_msg = (struct mei_bus_message *)dev->rd_msg_buf; switch (*(u8 *) mei_msg) { case HOST_START_RES_CMD: diff --git a/drivers/staging/mei/mei_dev.h b/drivers/staging/mei/mei_dev.h index b9957e00f52c..0d937b075322 100644 --- a/drivers/staging/mei/mei_dev.h +++ b/drivers/staging/mei/mei_dev.h @@ -30,6 +30,8 @@ #define MEI_WD_PARAMS_SIZE 4 #define MEI_WD_STATE_INDEPENDENCE_MSG_SENT (1 << 0) +#define MEI_RD_MSG_BUF_SIZE (128 * sizeof(u32)) + /* * MEI PCI Device object */ @@ -125,7 +127,7 @@ enum mei_cb_major_types { */ struct mei_message_data { u32 size; - char *data; + unsigned char *data; } __packed; @@ -219,7 +221,7 @@ struct mei_device { bool need_reset; u32 extra_write_index; - u32 rd_msg_buf[128]; /* used for control messages */ + 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; |