Commit 1ec23ed7126e ("drm/i915: Use uabi engines for the default engine
map") introduced a bug regarding engine iteration in default_engines()
as the rb tree isn't set up this early during driver initialization.
This triggered a sanity check we have in our grsecurity kernels, fixed
by doing the engine registration earlier (as suggested by Tvrtko) and
giving the type-multiplexed members some more visibility to avoid making
a similar mistake again in the future (patch 2).
Changelog:
v1 -> v2:
- instead of reverting commit 1ec23ed7126e, register engines earlier
(Tvrtko)
v1: https://lore.kernel.org/intel-gfx/20230905113921.14071-1-minipli@xxxxxxxxxxxxxx/
Please apply!
Thanks,
Mathias
Mathias Krause (2):
drm/i915: Register engines early to avoid type confusion
drm/i915: Clarify type evolution of uabi_node/uabi_engines
drivers/gpu/drm/i915/gt/intel_engine_types.h | 10 +++++++++-
drivers/gpu/drm/i915/gt/intel_engine_user.c | 17 +++++++----------
drivers/gpu/drm/i915/i915_drv.h | 17 ++++++++++++++++-
drivers/gpu/drm/i915/i915_gem.c | 9 +++++++--
4 files changed, 39 insertions(+), 14 deletions(-)
--
2.39.2
