drm: Remove the ULONG_MAX stack trace hackery
No architecture terminates the stack trace with ULONG_MAX anymore. Remove the cruft. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Alexander Potapenko <glider@google.com> 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> Link: https://lkml.kernel.org/r/20190410103644.945059666@linutronix.de
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@ -113,9 +113,6 @@ static noinline void save_stack(struct drm_mm_node *node)
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};
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};
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save_stack_trace(&trace);
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save_stack_trace(&trace);
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if (trace.nr_entries != 0 &&
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trace.entries[trace.nr_entries-1] == ULONG_MAX)
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trace.nr_entries--;
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/* May be called under spinlock, so avoid sleeping */
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/* May be called under spinlock, so avoid sleeping */
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node->stack = depot_save_stack(&trace, GFP_NOWAIT);
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node->stack = depot_save_stack(&trace, GFP_NOWAIT);
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@ -67,10 +67,6 @@ static noinline depot_stack_handle_t __save_depot_stack(void)
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};
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};
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save_stack_trace(&trace);
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save_stack_trace(&trace);
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if (trace.nr_entries &&
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trace.entries[trace.nr_entries - 1] == ULONG_MAX)
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trace.nr_entries--;
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return depot_save_stack(&trace, GFP_NOWAIT | __GFP_NOWARN);
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return depot_save_stack(&trace, GFP_NOWAIT | __GFP_NOWARN);
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}
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}
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