[PATCH] drm/i915: Do not rely on for loop caching the mask

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From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>

for_each_engine_masked caches the engine mask but what does the caller
know.

Cache it explicitly for clarity and while at it correct the type to match.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
Cc: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_active.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_active.c b/drivers/gpu/drm/i915/i915_active.c
index 13f304a29fc8..9083634a9027 100644
--- a/drivers/gpu/drm/i915/i915_active.c
+++ b/drivers/gpu/drm/i915/i915_active.c
@@ -346,12 +346,12 @@ int i915_active_acquire_preallocate_barrier(struct i915_active *ref,
 					    struct intel_engine_cs *engine)
 {
 	struct drm_i915_private *i915 = engine->i915;
+	intel_engine_mask_t tmp, mask = engine->mask;
 	struct llist_node *pos, *next;
-	unsigned long tmp;
 	int err;
 
-	GEM_BUG_ON(!engine->mask);
-	for_each_engine_masked(engine, i915, engine->mask, tmp) {
+	GEM_BUG_ON(!mask);
+	for_each_engine_masked(engine, i915, mask, tmp) {
 		struct intel_context *kctx = engine->kernel_context;
 		struct active_node *node;
 
-- 
2.20.1

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