For convenience, we want to interchange intel_wait/rb_node and treat a NULL rb_node as a NULL intel_wait and vice versa. Assert that the rb_node is at offset 0 in the intel_wait to ensure this.
Signed-off-by: Chris Wilson <[email protected]> Cc: Tvrtko Ursulin <[email protected]> --- drivers/gpu/drm/i915/intel_breadcrumbs.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c b/drivers/gpu/drm/i915/intel_breadcrumbs.c index 84bf8d827136..44f117612193 100644 --- a/drivers/gpu/drm/i915/intel_breadcrumbs.c +++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c @@ -342,6 +342,7 @@ static bool __intel_breadcrumbs_enable_irq(struct intel_breadcrumbs *b) static inline struct intel_wait *to_wait(struct rb_node *node) { + BUILD_BUG_ON(offsetof(struct intel_wait, node)); return rb_entry(node, struct intel_wait, node); } -- 2.19.1 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
