From 438763f37eb9664b6372bdfee990f8c33acdc63c Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Tue, 25 Dec 2012 19:05:59 +0200 Subject: mei: drop redundant length parameter from mei_write_message function The length is already part of the message header and it is validated before the function call Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/amthif.c | 6 ++---- drivers/misc/mei/init.c | 7 +++---- drivers/misc/mei/interface.c | 24 +++++++++++------------- drivers/misc/mei/interface.h | 5 ++--- drivers/misc/mei/interrupt.c | 17 ++++++++--------- drivers/misc/mei/main.c | 3 +-- drivers/misc/mei/wd.c | 18 +++++++++--------- 7 files changed, 36 insertions(+), 44 deletions(-) diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c index 18794aea606..8a9313a1ee7 100644 --- a/drivers/misc/mei/amthif.c +++ b/drivers/misc/mei/amthif.c @@ -300,8 +300,7 @@ static int mei_amthif_send_cmd(struct mei_device *dev, struct mei_cl_cb *cb) mei_hdr.reserved = 0; dev->iamthif_msg_buf_index += mei_hdr.length; if (mei_write_message(dev, &mei_hdr, - (unsigned char *)(dev->iamthif_msg_buf), - mei_hdr.length)) + (unsigned char *)dev->iamthif_msg_buf)) return -ENODEV; if (mei_hdr.msg_complete) { @@ -463,8 +462,7 @@ int mei_amthif_irq_write_complete(struct mei_device *dev, s32 *slots, *slots -= msg_slots; if (mei_write_message(dev, mei_hdr, - dev->iamthif_msg_buf + dev->iamthif_msg_buf_index, - mei_hdr->length)) { + dev->iamthif_msg_buf + dev->iamthif_msg_buf_index)) { dev->iamthif_state = MEI_IAMTHIF_IDLE; cl->status = -ENODEV; list_del(&cb->list); diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c index a54cd5567ca..c0c0b3e2257 100644 --- a/drivers/misc/mei/init.c +++ b/drivers/misc/mei/init.c @@ -345,7 +345,7 @@ void mei_host_start_message(struct mei_device *dev) start_req->host_version.minor_version = HBM_MINOR_VERSION; dev->recvd_msg = false; - if (mei_write_message(dev, mei_hdr, (unsigned char *)start_req, len)) { + if (mei_write_message(dev, mei_hdr, (unsigned char *)start_req)) { dev_dbg(&dev->pdev->dev, "write send version message to FW fail.\n"); dev->dev_state = MEI_DEV_RESETING; mei_reset(dev, 1); @@ -374,7 +374,7 @@ void mei_host_enum_clients_message(struct mei_device *dev) memset(enum_req, 0, sizeof(struct hbm_host_enum_request)); enum_req->hbm_cmd = HOST_ENUM_REQ_CMD; - if (mei_write_message(dev, mei_hdr, (unsigned char *)enum_req, len)) { + if (mei_write_message(dev, mei_hdr, (unsigned char *)enum_req)) { dev->dev_state = MEI_DEV_RESETING; dev_dbg(&dev->pdev->dev, "write send enumeration request message to FW fail.\n"); mei_reset(dev, 1); @@ -492,8 +492,7 @@ int mei_host_client_enumerate(struct mei_device *dev) prop_req->hbm_cmd = HOST_CLIENT_PROPERTIES_REQ_CMD; prop_req->address = next_client_index; - if (mei_write_message(dev, mei_hdr, (unsigned char *) prop_req, - mei_hdr->length)) { + if (mei_write_message(dev, mei_hdr, (unsigned char *) prop_req)) { dev->dev_state = MEI_DEV_RESETING; dev_err(&dev->pdev->dev, "Properties request command failed\n"); mei_reset(dev, 1); diff --git a/drivers/misc/mei/interface.c b/drivers/misc/mei/interface.c index 8de85478596..21ccbe6f716 100644 --- a/drivers/misc/mei/interface.c +++ b/drivers/misc/mei/interface.c @@ -113,21 +113,20 @@ int mei_hbuf_empty_slots(struct mei_device *dev) * mei_write_message - writes a message to mei device. * * @dev: the device structure - * @header: header of message - * @write_buffer: message buffer will be written - * @write_length: message size will be written + * @hader: mei HECI header of message + * @buf: message payload will be written * * This function returns -EIO if write has failed */ int mei_write_message(struct mei_device *dev, struct mei_msg_hdr *header, - unsigned char *buf, unsigned long length) + unsigned char *buf) { unsigned long rem, dw_cnt; + unsigned long length = header->length; u32 *reg_buf = (u32 *)buf; int i; int empty_slots; - dev_dbg(&dev->pdev->dev, "mei_write_message header=%08x.\n", *((u32 *) header)); @@ -307,8 +306,7 @@ int mei_send_flow_control(struct mei_device *dev, struct mei_cl *cl) dev_dbg(&dev->pdev->dev, "sending flow control host client = %d, ME client = %d\n", cl->host_client_id, cl->me_client_id); - return mei_write_message(dev, mei_hdr, - (unsigned char *) flow_ctrl, len); + return mei_write_message(dev, mei_hdr, (unsigned char *) flow_ctrl); } /** @@ -346,11 +344,11 @@ int mei_other_client_is_connecting(struct mei_device *dev, */ int mei_disconnect(struct mei_device *dev, struct mei_cl *cl) { - struct mei_msg_hdr *mei_hdr; + struct mei_msg_hdr *hdr; struct hbm_client_connect_request *req; const size_t len = sizeof(struct hbm_client_connect_request); - mei_hdr = mei_hbm_hdr(&dev->wr_msg_buf[0], len); + hdr = mei_hbm_hdr(&dev->wr_msg_buf[0], len); req = (struct hbm_client_connect_request *)&dev->wr_msg_buf[1]; memset(req, 0, len); @@ -359,7 +357,7 @@ int mei_disconnect(struct mei_device *dev, struct mei_cl *cl) req->me_addr = cl->me_client_id; req->reserved = 0; - return mei_write_message(dev, mei_hdr, (unsigned char *)req, len); + return mei_write_message(dev, hdr, (unsigned char *)req); } /** @@ -372,11 +370,11 @@ int mei_disconnect(struct mei_device *dev, struct mei_cl *cl) */ int mei_connect(struct mei_device *dev, struct mei_cl *cl) { - struct mei_msg_hdr *mei_hdr; + struct mei_msg_hdr *hdr; struct hbm_client_connect_request *req; const size_t len = sizeof(struct hbm_client_connect_request); - mei_hdr = mei_hbm_hdr(&dev->wr_msg_buf[0], len); + hdr = mei_hbm_hdr(&dev->wr_msg_buf[0], len); req = (struct hbm_client_connect_request *) &dev->wr_msg_buf[1]; req->hbm_cmd = CLIENT_CONNECT_REQ_CMD; @@ -384,5 +382,5 @@ int mei_connect(struct mei_device *dev, struct mei_cl *cl) req->me_addr = cl->me_client_id; req->reserved = 0; - return mei_write_message(dev, mei_hdr, (unsigned char *) req, len); + return mei_write_message(dev, hdr, (unsigned char *) req); } diff --git a/drivers/misc/mei/interface.h b/drivers/misc/mei/interface.h index ec6c785a396..ca732990a7e 100644 --- a/drivers/misc/mei/interface.h +++ b/drivers/misc/mei/interface.h @@ -29,9 +29,8 @@ void mei_read_slots(struct mei_device *dev, unsigned long buffer_length); int mei_write_message(struct mei_device *dev, - struct mei_msg_hdr *header, - unsigned char *write_buffer, - unsigned long write_length); + struct mei_msg_hdr *header, + unsigned char *buf); bool mei_hbuf_is_empty(struct mei_device *dev); diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 04fa2134615..b72fa8196dd 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -465,7 +465,7 @@ static void mei_client_disconnect_request(struct mei_device *dev, * @mei_hdr: header of bus message */ static void mei_irq_thread_read_bus_message(struct mei_device *dev, - struct mei_msg_hdr *mei_hdr) + struct mei_msg_hdr *hdr) { struct mei_bus_message *mei_msg; struct mei_me_client *me_client; @@ -479,8 +479,8 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev, struct hbm_host_stop_request *stop_req; /* read the message to our buffer */ - BUG_ON(mei_hdr->length >= sizeof(dev->rd_msg_buf)); - mei_read_slots(dev, dev->rd_msg_buf, mei_hdr->length); + BUG_ON(hdr->length >= sizeof(dev->rd_msg_buf)); + mei_read_slots(dev, dev->rd_msg_buf, hdr->length); mei_msg = (struct mei_bus_message *)dev->rd_msg_buf; switch (mei_msg->hbm_cmd) { @@ -506,14 +506,13 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev, dev->version = version_res->me_max_version; /* send stop message */ - mei_hdr = mei_hbm_hdr(&buf[0], len); + hdr = mei_hbm_hdr(&buf[0], len); stop_req = (struct hbm_host_stop_request *)&buf[1]; memset(stop_req, 0, len); stop_req->hbm_cmd = HOST_STOP_REQ_CMD; stop_req->reason = DRIVER_STOP_REQUEST; - mei_write_message(dev, mei_hdr, - (unsigned char *)stop_req, len); + mei_write_message(dev, hdr, (unsigned char *)stop_req); dev_dbg(&dev->pdev->dev, "version mismatch.\n"); return; } @@ -615,7 +614,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev, const size_t len = sizeof(struct hbm_host_stop_request); - mei_hdr = mei_hbm_hdr((u32 *)&dev->wr_ext_msg.hdr, len); + hdr = mei_hbm_hdr((u32 *)&dev->wr_ext_msg.hdr, len); stop_req = (struct hbm_host_stop_request *)&dev->wr_ext_msg.data; memset(stop_req, 0, len); stop_req->hbm_cmd = HOST_STOP_REQ_CMD; @@ -748,7 +747,7 @@ static int mei_irq_thread_write_complete(struct mei_device *dev, s32 *slots, *slots -= msg_slots; if (mei_write_message(dev, mei_hdr, - cb->request_buffer.data + cb->buf_idx, len)) { + cb->request_buffer.data + cb->buf_idx)) { cl->status = -ENODEV; list_move_tail(&cb->list, &cmpl_list->list); return -ENODEV; @@ -930,7 +929,7 @@ static int mei_irq_thread_write_handler(struct mei_device *dev, if (dev->wr_ext_msg.hdr.length) { mei_write_message(dev, &dev->wr_ext_msg.hdr, - dev->wr_ext_msg.data, dev->wr_ext_msg.hdr.length); + dev->wr_ext_msg.data); slots -= mei_data2slots(dev->wr_ext_msg.hdr.length); dev->wr_ext_msg.hdr.length = 0; } diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index 43fb52ff98a..b281c235d89 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -554,8 +554,7 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf, mei_hdr.reserved = 0; dev_dbg(&dev->pdev->dev, "call mei_write_message header=%08x.\n", *((u32 *) &mei_hdr)); - if (mei_write_message(dev, &mei_hdr, - write_cb->request_buffer.data, mei_hdr.length)) { + if (mei_write_message(dev, &mei_hdr, write_cb->request_buffer.data)) { rets = -ENODEV; goto err; } diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c index 9299a8c29a6..9d4d4aa0f0e 100644 --- a/drivers/misc/mei/wd.c +++ b/drivers/misc/mei/wd.c @@ -101,22 +101,22 @@ int mei_wd_host_init(struct mei_device *dev) */ int mei_wd_send(struct mei_device *dev) { - struct mei_msg_hdr *mei_hdr; + struct mei_msg_hdr *hdr; - mei_hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0]; - mei_hdr->host_addr = dev->wd_cl.host_client_id; - mei_hdr->me_addr = dev->wd_cl.me_client_id; - mei_hdr->msg_complete = 1; - mei_hdr->reserved = 0; + hdr = (struct mei_msg_hdr *) &dev->wr_msg_buf[0]; + hdr->host_addr = dev->wd_cl.host_client_id; + hdr->me_addr = dev->wd_cl.me_client_id; + hdr->msg_complete = 1; + hdr->reserved = 0; if (!memcmp(dev->wd_data, mei_start_wd_params, MEI_WD_HDR_SIZE)) - mei_hdr->length = MEI_WD_START_MSG_SIZE; + hdr->length = MEI_WD_START_MSG_SIZE; else if (!memcmp(dev->wd_data, mei_stop_wd_params, MEI_WD_HDR_SIZE)) - mei_hdr->length = MEI_WD_STOP_MSG_SIZE; + hdr->length = MEI_WD_STOP_MSG_SIZE; else return -EINVAL; - return mei_write_message(dev, mei_hdr, dev->wd_data, mei_hdr->length); + return mei_write_message(dev, hdr, dev->wd_data); } /** -- cgit v1.2.3-70-g09d2