| Date | Wed, 10 Apr 2019 12:28:09 +0200 | From | Thomas Gleixner <> | Subject | [RFC patch 15/41] drm: Remove the ULONG_MAX stack trace hackery |
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No architecture terminates the stack trace with ULONG_MAX anymore. Remove the cruft.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: intel-gfx@lists.freedesktop.org Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: dri-devel@lists.freedesktop.org Cc: David Airlie <airlied@linux.ie> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> --- drivers/gpu/drm/drm_mm.c | 3 --- drivers/gpu/drm/i915/intel_runtime_pm.c | 4 ---- 2 files changed, 7 deletions(-)
--- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -113,9 +113,6 @@ static noinline void save_stack(struct d }; save_stack_trace(&trace); - if (trace.nr_entries != 0 && - trace.entries[trace.nr_entries-1] == ULONG_MAX) - trace.nr_entries--; /* May be called under spinlock, so avoid sleeping */ node->stack = depot_save_stack(&trace, GFP_NOWAIT); --- a/drivers/gpu/drm/i915/intel_runtime_pm.c +++ b/drivers/gpu/drm/i915/intel_runtime_pm.c @@ -67,10 +67,6 @@ static noinline depot_stack_handle_t __s }; save_stack_trace(&trace); - if (trace.nr_entries && - trace.entries[trace.nr_entries - 1] == ULONG_MAX) - trace.nr_entries--; - return depot_save_stack(&trace, GFP_NOWAIT | __GFP_NOWARN); }
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