[PATCH v5 11/17] misc/mei/hdcp: Fix AUTH_STREAM_REQ cmd buffer len
Anshuman Gupta
anshuman.gupta at intel.com
Wed Nov 11 06:20:45 UTC 2020
Fix the size of WIRED_REPEATER_AUTH_STREAM_REQ cmd buffer size.
It is based upon the actual number of MST streams and size
of wired_cmd_repeater_auth_stream_req_in.
Excluding the size of hdcp_cmd_header.
v2:
hdcp_cmd_header size annotation nitpick. [Tomas]
Cc: Tomas Winkler <tomas.winkler at intel.com>
Cc: Ramalingam C <ramalingam.c at intel.com>
Acked-by: Tomas Winkler <tomas.winkler at intel.com>
Reviewed-by: Uma Shankar <uma.shankar at intel.com>
Reviewed-by: Ramalingam C <ramalingam.c at intel.com>
Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
---
drivers/misc/mei/hdcp/mei_hdcp.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c
index 9ae9669e46ea..3506a3534294 100644
--- a/drivers/misc/mei/hdcp/mei_hdcp.c
+++ b/drivers/misc/mei/hdcp/mei_hdcp.c
@@ -569,8 +569,7 @@ static int mei_hdcp_verify_mprime(struct device *dev,
verify_mprime_in->header.api_version = HDCP_API_VERSION;
verify_mprime_in->header.command_id = WIRED_REPEATER_AUTH_STREAM_REQ;
verify_mprime_in->header.status = ME_HDCP_STATUS_SUCCESS;
- verify_mprime_in->header.buffer_len =
- WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_MIN_IN;
+ verify_mprime_in->header.buffer_len = cmd_size - sizeof(verify_mprime_in->header);
verify_mprime_in->port.integrated_port_type = data->port_type;
verify_mprime_in->port.physical_port = (u8)data->fw_ddi;
--
2.26.2
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