6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Lyude Paul lyude@redhat.com
commit 560271e10b2c86e95ea35afa9e79822e4847f07a upstream.
Since we recently started warning about uses of this function after the atomic check phase completes, we've started getting warnings about this in nouveau. It appears a misplaced drm_atomic_get_crtc_state() call has been hiding in our .prepare_fb callback for a while.
So, fix this by adding a new nv50_head_atom_get_new() function and use that in our .prepare_fb callback instead.
Signed-off-by: Lyude Paul lyude@redhat.com Reviewed-by: Dave Airlie airlied@redhat.com Fixes: 1590700d94ac ("drm/nouveau/kms/nv50-: split each resource type into their own source files") Cc: stable@vger.kernel.org # v4.18+ Link: https://patch.msgid.link/20251211190256.396742-1-lyude@redhat.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/nouveau/dispnv50/atom.h | 13 +++++++++++++ drivers/gpu/drm/nouveau/dispnv50/wndw.c | 2 +- 2 files changed, 14 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/nouveau/dispnv50/atom.h +++ b/drivers/gpu/drm/nouveau/dispnv50/atom.h @@ -152,8 +152,21 @@ static inline struct nv50_head_atom * nv50_head_atom_get(struct drm_atomic_state *state, struct drm_crtc *crtc) { struct drm_crtc_state *statec = drm_atomic_get_crtc_state(state, crtc); + if (IS_ERR(statec)) return (void *)statec; + + return nv50_head_atom(statec); +} + +static inline struct nv50_head_atom * +nv50_head_atom_get_new(struct drm_atomic_state *state, struct drm_crtc *crtc) +{ + struct drm_crtc_state *statec = drm_atomic_get_new_crtc_state(state, crtc); + + if (!statec) + return NULL; + return nv50_head_atom(statec); }
--- a/drivers/gpu/drm/nouveau/dispnv50/wndw.c +++ b/drivers/gpu/drm/nouveau/dispnv50/wndw.c @@ -567,7 +567,7 @@ nv50_wndw_prepare_fb(struct drm_plane *p asyw->image.offset[0] = nvbo->offset;
if (wndw->func->prepare) { - asyh = nv50_head_atom_get(asyw->state.state, asyw->state.crtc); + asyh = nv50_head_atom_get_new(asyw->state.state, asyw->state.crtc); if (IS_ERR(asyh)) return PTR_ERR(asyh);