[PATCH] drm/i915/guc: Fix flag query to not modify state

[John.C.Harrison at Intel.com]

From: John Harrison <John.C.Harrison at Intel.com>

A flag query helper was actually writing to the flags word rather than
just reading. Fix that. Also update the function's comment as it was
out of date.

Fixes: 0f7976506de61 ("drm/i915/guc: Rework and simplify locking")
Signed-off-by: John Harrison <john.c.harrison at intel.com>
---
 drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
index b3a429a92c0d..d9f4218f5ef4 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_submission.c
@@ -174,11 +174,8 @@ static inline void init_sched_state(struct intel_context *ce)
 __maybe_unused
 static bool sched_state_is_init(struct intel_context *ce)
 {
-	/*
-	 * XXX: Kernel contexts can have SCHED_STATE_NO_LOCK_REGISTERED after
-	 * suspend.
-	 */
-	return !(ce->guc_state.sched_state &=
+	/* Kernel contexts can have SCHED_STATE_REGISTERED after suspend. */
+	return !(ce->guc_state.sched_state &
 		 ~(SCHED_STATE_BLOCKED_MASK | SCHED_STATE_REGISTERED));
 }
 
-- 
2.25.1