Re: [PATCH] drm/dp: Fix documentation of DP tunnel functions

[Imre Deak <imre.deak@intel.com>]

On Fri, Apr 19, 2024 at 03:40:39PM +0300, Jani Nikula wrote:
> On Wed, 28 Feb 2024, Imre Deak <imre.deak@intel.com> wrote:
> > Fix the documentation issues below, also reported by 'make htmldocs':
> >
> > 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'
> >
> > Fixes: 295654f7e554 ("drm/dp: Add support for DP tunneling")
> > Reported-by: kernel test robot <lkp@intel.com>
> > Signed-off-by: Imre Deak <imre.deak@intel.com>
> 
> This came up today [1]. Even if the regressing commit was merged via
> drm-intel, you still need the acks for queueing non-i915 changes via
> drm-intel, and the acks absolutely must be recorded in the commit
> messages when pushing the patches.

There wasn't a reason to merge this via drm-intel instead of
drm-misc-next, not sure why I did that; otherwise I always ask and
record the acks.

> dim should complain about applying non-i915 patches without acks.

I don't remember seeing it this time, but yes it should complain and
require an override; maybe I managed to overlook somehow that as well.

> BR,
> Jani.
> 
> 
> [1] https://lore.kernel.org/r/Zh_Q72gYKMMbge9A@intel.com
> 
> 
> 
> > ---
> >  drivers/gpu/drm/display/drm_dp_tunnel.c | 7 ++++---
> >  1 file changed, 4 insertions(+), 3 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/display/drm_dp_tunnel.c b/drivers/gpu/drm/display/drm_dp_tunnel.c
> > index 120e0de674c19..017f1d4c63415 100644
> > --- a/drivers/gpu/drm/display/drm_dp_tunnel.c
> > +++ b/drivers/gpu/drm/display/drm_dp_tunnel.c
> > @@ -436,8 +436,8 @@ EXPORT_SYMBOL(drm_dp_tunnel_get);
> >  
> >  /**
> >   * drm_dp_tunnel_put - Put a reference for a DP tunnel
> > - * @tunnel - Tunnel object
> > - * @tracker - Debug tracker for the reference
> > + * @tunnel: Tunnel object
> > + * @tracker: Debug tracker for the reference
> >   *
> >   * Put a reference for @tunnel along with its debug *@tracker, which
> >   * was obtained with drm_dp_tunnel_get().
> > @@ -1170,7 +1170,7 @@ int drm_dp_tunnel_alloc_bw(struct drm_dp_tunnel *tunnel, int bw)
> >  EXPORT_SYMBOL(drm_dp_tunnel_alloc_bw);
> >  
> >  /**
> > - * drm_dp_tunnel_atomic_get_allocated_bw - Get the BW allocated for a DP tunnel
> > + * drm_dp_tunnel_get_allocated_bw - Get the BW allocated for a DP tunnel
> >   * @tunnel: Tunnel object
> >   *
> >   * Get the current BW allocated for @tunnel. After the tunnel is created /
> > @@ -1892,6 +1892,7 @@ static void destroy_mgr(struct drm_dp_tunnel_mgr *mgr)
> >  /**
> >   * drm_dp_tunnel_mgr_create - Create a DP tunnel manager
> >   * @dev: DRM device object
> > + * @max_group_count: Maximum number of tunnel groups
> >   *
> >   * Creates a DP tunnel manager for @dev.
> >   *
> 
> -- 
> Jani Nikula, Intel