Re: [Intel-gfx] [RFC] drm/i915/hdcp: Gen12 HDCP 1.4 support over DP MST

[kernel test robot <lkp@intel.com>]

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Hi Anshuman,

[FYI, it's a private test report for your RFC patch.]
[auto build test ERROR on drm-intel/for-linux-next]
[also build test ERROR on drm-tip/drm-tip]
[cannot apply to v5.9-rc3 next-20200828]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    https://github.com/0day-ci/linux/commits/Anshuman-Gupta/drm-i915-hdcp-Gen12-HDCP-1-4-support-over-DP-MST/20200901-202424
base:   git://anongit.freedesktop.org/drm-intel for-linux-next
config: x86_64-randconfig-a006-20200901 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   drivers/gpu/drm/i915/display/intel_hdcp.c: In function '_intel_hdcp_disable':
>> drivers/gpu/drm/i915/display/intel_hdcp.c:805:6: error: 'intel_dig_port' undeclared (first use in this function); did you mean 'intel_digital_port'?
     805 |  if (intel_dig_port->num_hdcp_streams > 0) {
         |      ^~~~~~~~~~~~~~
         |      intel_digital_port
   drivers/gpu/drm/i915/display/intel_hdcp.c:805:6: note: each undeclared identifier is reported only once for each function it appears in
--
   drivers/gpu/drm/i915/display/intel_dp_hdcp.c: In function 'intel_dp_mst_hdcp_strem_encryption':
>> drivers/gpu/drm/i915/display/intel_dp_hdcp.c:670:42: error: 'idig_port' undeclared (first use in this function); did you mean 'dig_port'?
     670 |  struct drm_i915_private *i915 = to_i915(idig_port->base.base.dev);
         |                                          ^~~~~~~~~
         |                                          dig_port
   drivers/gpu/drm/i915/display/intel_dp_hdcp.c:670:42: note: each undeclared identifier is reported only once for each function it appears in

# https://github.com/0day-ci/linux/commit/d6c89b9a28b4d968e8b014579048586fc79214dc
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Anshuman-Gupta/drm-i915-hdcp-Gen12-HDCP-1-4-support-over-DP-MST/20200901-202424
git checkout d6c89b9a28b4d968e8b014579048586fc79214dc
vim +805 drivers/gpu/drm/i915/display/intel_hdcp.c

   786	
   787	static int _intel_hdcp_disable(struct intel_connector *connector)
   788	{
   789		struct intel_digital_port *dig_port = intel_attached_dig_port(connector);
   790		struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
   791		struct intel_hdcp *hdcp = &connector->hdcp;
   792		enum port port = dig_port->base.port;
   793		enum transcoder cpu_transcoder = hdcp->cpu_transcoder;
   794		u32 repeater_ctl;
   795		int ret;
   796	
   797		drm_dbg_kms(&dev_priv->drm, "[%s:%d] HDCP is being disabled...\n",
   798			    connector->base.name, connector->base.base.id);
   799	
   800		/*
   801		 * If there are other connectors on this port using HDCP, don't disable
   802		 * it. Instead, toggle the HDCP signalling off on that particular
   803		 * connector/pipe and exit.
   804		 */
 > 805		if (intel_dig_port->num_hdcp_streams > 0) {
   806			if (hdcp->shim->toggle_select_hdcp) {
   807				ret = hdcp->shim->toggle_select_hdcp(dig_port, false);
   808				if (ret)
   809					DRM_ERROR("Failed to disable HDCP signalling\n");
   810				return ret;
   811			}
   812		}
   813	
   814		hdcp->hdcp_encrypted = false;
   815		intel_de_write(dev_priv, HDCP_CONF(dev_priv, cpu_transcoder, port), 0);
   816		if (intel_de_wait_for_clear(dev_priv,
   817					    HDCP_STATUS(dev_priv, cpu_transcoder, port),
   818					    ~0, ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) {
   819			drm_err(&dev_priv->drm,
   820				"Failed to disable HDCP, timeout clearing status\n");
   821			return -ETIMEDOUT;
   822		}
   823	
   824		repeater_ctl = intel_hdcp_get_repeater_ctl(dev_priv, cpu_transcoder,
   825							   port);
   826		intel_de_write(dev_priv, HDCP_REP_CTL,
   827			       intel_de_read(dev_priv, HDCP_REP_CTL) & ~repeater_ctl);
   828	
   829		ret = hdcp->shim->toggle_signalling(dig_port, cpu_transcoder, false);
   830		if (ret) {
   831			drm_err(&dev_priv->drm, "Failed to disable HDCP signalling\n");
   832			return ret;
   833		}
   834	
   835		drm_dbg_kms(&dev_priv->drm, "HDCP is disabled\n");
   836		return 0;
   837	}
   838	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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