[Intel-gfx] [PATCH v2 09/15] misc/mei/hdcp: Fix AUTH_STREAM_REQ cmd buffer len

[Winkler, Tomas]

> 
> On Tue, 20 Oct 2020, Anshuman Gupta <anshuman.gupta at intel.com> wrote:
> > 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.
> >
> > Cc: Tomas Winkler <tomas.winkler at intel.com>
> > Cc: Ramalingam C <ramalingam.c at intel.com>
> > Signed-off-by: Anshuman Gupta <anshuman.gupta at intel.com>
> 
> Tomas, ack to merge this via drm-intel?

I have no problem with merging it via drm-intel,  just see a little nitpick bellow:
> Thanks,
> Jani.
> 
> > ---
> >  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..b10d266fb60a 100644
> > --- a/drivers/misc/mei/hdcp/mei_hdcp.c
> > +++ b//
> > @@ -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(struct
> > +hdcp_cmd_header);

 I believe the following annotation would be  preferable: 
	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;
> 
> --
> Jani Nikula, Intel Open Source Graphics Center