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authorAnshuman Gupta <anshuman.gupta@intel.com>2021-01-11 13:41:13 +0530
committerAnshuman Gupta <anshuman.gupta@intel.com>2021-01-13 08:29:32 +0530
commit6581cc9e5da9844760122b108198f509c88cb543 (patch)
treef7bf4af731711952aedaa7ab6b660f75c4331a58 /drivers/misc/mei
parenta6c6eac947d5190b215b481ce616ab6cdaf44b1e (diff)
downloadlinux-6581cc9e5da9844760122b108198f509c88cb543.tar.bz2
misc/mei/hdcp: Fix AUTH_STREAM_REQ cmd buffer len
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@intel.com> Cc: Ramalingam C <ramalingam.c@intel.com> Acked-by: Tomas Winkler <tomas.winkler@intel.com> Reviewed-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Ramalingam C <ramalingam.c@intel.com> Tested-by: Karthik B S <karthik.b.s@intel.com> Signed-off-by: Anshuman Gupta <anshuman.gupta@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210111081120.28417-13-anshuman.gupta@intel.com
Diffstat (limited to 'drivers/misc/mei')
-rw-r--r--drivers/misc/mei/hdcp/mei_hdcp.c3
1 files changed, 1 insertions, 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;