[PATCH 4/6] drm/xe/xe_guc_ct: READ_ONCE ct state in xe_guc_ct_initialized

[Jonathan Cavitt <jonathan.cavitt@intel.com>]

Use READ_ONCE when reading ct->state in xe_guc_ct_initialized to prevent
the compiler from ignoring this operation.

Fixes: 0b93b7dcd9eb ("drm/xe: Fix early wedge on GuC load failure")
Suggested-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
---
 drivers/gpu/drm/xe/xe_guc_ct.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_guc_ct.h b/drivers/gpu/drm/xe/xe_guc_ct.h
index 5599939f8fe1..d4c9cb4dbcb5 100644
--- a/drivers/gpu/drm/xe/xe_guc_ct.h
+++ b/drivers/gpu/drm/xe/xe_guc_ct.h
@@ -30,7 +30,7 @@ void xe_guc_ct_print(struct xe_guc_ct *ct, struct drm_printer *p, bool want_ctb)
 
 static inline bool xe_guc_ct_initialized(struct xe_guc_ct *ct)
 {
-	return ct->state != XE_GUC_CT_STATE_NOT_INITIALIZED;
+	return READ_ONCE(ct->state) != XE_GUC_CT_STATE_NOT_INITIALIZED;
 }
 
 static inline bool xe_guc_ct_enabled(struct xe_guc_ct *ct)
-- 
2.43.0