[linux-next:master 10266/10830] drivers/gpu/drm/display/drm_dp_tunnel.c:1185: warning: expecting prototype for drm_dp_tunnel_atomic_get_allocated_bw(). Prototype was for drm_dp_tunnel_get_allocated_bw() instead

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

Hi Imre,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   20af1ca418d2c0b11bc2a1fe8c0c88f67bcc2a7e
commit: 91888b5b1ad2fda3f4c6b8de5dd42dbe8b90ac2c [10266/10830] drm/i915/dp: Add support for DP tunnel BW allocation
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20240228/202402281921.GR4Yw253-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240228/202402281921.GR4Yw253-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402281921.GR4Yw253-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/display/drm_dp_tunnel.c:447: warning: Function parameter or struct member 'tunnel' not described in 'drm_dp_tunnel_put'
>> drivers/gpu/drm/display/drm_dp_tunnel.c:447: warning: Function parameter or struct member 'tracker' not described in 'drm_dp_tunnel_put'
>> drivers/gpu/drm/display/drm_dp_tunnel.c:1185: warning: expecting prototype for drm_dp_tunnel_atomic_get_allocated_bw(). Prototype was for drm_dp_tunnel_get_allocated_bw() instead
>> drivers/gpu/drm/display/drm_dp_tunnel.c:1903: warning: Function parameter or struct member 'max_group_count' not described in 'drm_dp_tunnel_mgr_create'


vim +1185 drivers/gpu/drm/display/drm_dp_tunnel.c

295654f7e554a9 Imre Deak 2024-02-26  1171  
295654f7e554a9 Imre Deak 2024-02-26  1172  /**
295654f7e554a9 Imre Deak 2024-02-26  1173   * drm_dp_tunnel_atomic_get_allocated_bw - Get the BW allocated for a DP tunnel
295654f7e554a9 Imre Deak 2024-02-26  1174   * @tunnel: Tunnel object
295654f7e554a9 Imre Deak 2024-02-26  1175   *
295654f7e554a9 Imre Deak 2024-02-26  1176   * Get the current BW allocated for @tunnel. After the tunnel is created /
295654f7e554a9 Imre Deak 2024-02-26  1177   * resumed and the BW allocation mode is enabled for it, the allocation
295654f7e554a9 Imre Deak 2024-02-26  1178   * becomes determined only after the first allocation request by the driver
295654f7e554a9 Imre Deak 2024-02-26  1179   * calling drm_dp_tunnel_alloc_bw().
295654f7e554a9 Imre Deak 2024-02-26  1180   *
295654f7e554a9 Imre Deak 2024-02-26  1181   * Return the BW allocated for the tunnel, or -1 if the allocation is
295654f7e554a9 Imre Deak 2024-02-26  1182   * undetermined.
295654f7e554a9 Imre Deak 2024-02-26  1183   */
295654f7e554a9 Imre Deak 2024-02-26  1184  int drm_dp_tunnel_get_allocated_bw(struct drm_dp_tunnel *tunnel)
295654f7e554a9 Imre Deak 2024-02-26 @1185  {
295654f7e554a9 Imre Deak 2024-02-26  1186  	return tunnel->allocated_bw;
295654f7e554a9 Imre Deak 2024-02-26  1187  }
295654f7e554a9 Imre Deak 2024-02-26  1188  EXPORT_SYMBOL(drm_dp_tunnel_get_allocated_bw);
295654f7e554a9 Imre Deak 2024-02-26  1189  

:::::: The code at line 1185 was first introduced by commit
:::::: 295654f7e554a9f089bdab0b2bb9a9aad7c402c0 drm/dp: Add support for DP tunneling

:::::: TO: Imre Deak <imre.deak@intel.com>
:::::: CC: Imre Deak <imre.deak@intel.com>

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