[Intel-gfx] [PATCH v2 1/2] drm/i915/mst: Validate modes against available link bandwidth

[kbuild test robot]

Hi Anusha,

[auto build test ERROR on drm/drm-next]
[also build test ERROR on v4.8-rc1 next-20160812]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Anusha-Srivatsa/drm-i915-mst-Validate-modes-against-available-link-bandwidth/20160813-050818
base:   git://people.freedesktop.org/~airlied/linux.git drm-next
config: i386-randconfig-x014-201632 (attached as .config)
compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

Note: the linux-review/Anusha-Srivatsa/drm-i915-mst-Validate-modes-against-available-link-bandwidth/20160813-050818 HEAD 413b1bb45dc2c58540a17c5ca642b6aee2c97405 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   drivers/gpu/drm/i915/intel_dp_mst.c: In function 'intel_dp_mst_mode_valid':
>> drivers/gpu/drm/i915/intel_dp_mst.c:363:14: error: implicit declaration of function 'drm_dp_mst_get_avail_pbn' [-Werror=implicit-function-declaration]
     avail_pbn = drm_dp_mst_get_avail_pbn(mgr, port);
                 ^~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/drm_dp_mst_get_avail_pbn +363 drivers/gpu/drm/i915/intel_dp_mst.c

   357		struct intel_connector *intel_connector = to_intel_connector(connector);
   358		struct intel_dp *intel_dp = intel_connector->mst_port;
   359		struct drm_dp_mst_topology_mgr *mgr = &intel_dp->mst_mgr;
   360		struct drm_dp_mst_port *port = (struct drm_dp_mst_port *) (intel_connector->port);
   361		int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
   362	
 > 363		avail_pbn = drm_dp_mst_get_avail_pbn(mgr, port);
   364		req_pbn = drm_dp_calc_pbn_mode(mode->clock, 24);
   365		if (req_pbn > avail_pbn)
   366			return MODE_H_ILLEGAL;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
-------------- next part --------------
A non-text attachment was scrubbed...
Name: .config.gz
Type: application/octet-stream
Size: 26787 bytes
Desc: not available
URL: <https://lists.freedesktop.org/archives/intel-gfx/attachments/20160813/1d233563/attachment-0001.obj>