On Mon, Jan 22, 2018 at 12:55:00PM -0500, Sean Paul wrote:
> The commit below returned earlier than before, but failed to move the
> info message when authenticating without downstream devices. This patch
> restores the message on authentication success.
>
> Fixes: 87eb3ec818fa ("drm/i915: II stage HDCP auth for repeater only")
> Cc: Ramalingam C <ramalingam.c@xxxxxxxxx>
> Cc: Sean Paul <seanpaul@xxxxxxxxxxxx>
> Cc: Jani Nikula <jani.nikula@xxxxxxxxxxxxxxx>
> Cc: Joonas Lahtinen <joonas.lahtinen@xxxxxxxxxxxxxxx>
> Cc: Rodrigo Vivi <rodrigo.vivi@xxxxxxxxx>
> Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
> Signed-off-by: Sean Paul <seanpaul@xxxxxxxxxxxx>
DRM_INFO is rather loud (it shows up in dmesg by default), imo better to
bikeshed this to DRM_DEBUG_KMS or similar while at it. Of course would
need to be done for the entire file.
Either way (i.e. if you ignore this, do it in a separate patch, or
combined):
Reviewed-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
> drivers/gpu/drm/i915/intel_hdcp.c | 5 ++---
> 1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c
> index db9527173a1e..dd7dffd405d5 100644
> --- a/drivers/gpu/drm/i915/intel_hdcp.c
> +++ b/drivers/gpu/drm/i915/intel_hdcp.c
> @@ -168,10 +168,8 @@ int intel_hdcp_auth_downstream(struct intel_digital_port *intel_dig_port,
>
> /* If there are no downstream devices, we're all done. */
> num_downstream = DRM_HDCP_NUM_DOWNSTREAM(bstatus[0]);
> - if (num_downstream == 0) {
> - DRM_INFO("HDCP is enabled (no downstream devices)\n");
> + if (num_downstream == 0)
> return 0;
> - }
>
> ksv_fifo = kzalloc(num_downstream * DRM_HDCP_KSV_LEN, GFP_KERNEL);
> if (!ksv_fifo)
> @@ -502,6 +500,7 @@ static int intel_hdcp_auth(struct intel_digital_port *intel_dig_port,
> if (repeater_present)
> return intel_hdcp_auth_downstream(intel_dig_port, shim);
>
> + DRM_INFO("HDCP is enabled (no downstream devices)\n");
> return 0;
> }
>
> --
> 2.16.0.rc1.238.g530d649a79-goog
>
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--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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