drm/xe: Add missing include guards to unprotected headers

Two headers lack include guards entirely, which can cause duplicate
definition errors if they are included more than once (directly or
transitively).

Add standard _XE_<NAME>_H_ include guards to:
  - xe_dep_scheduler.h: forward declarations and function prototypes
  - xe_pcode_api.h: PCODE mailbox register definitions

No functional change.

Suggested-by: Nitin Gote <nitin.r.gote@intel.com>
Assisted-by: GitHub Copilot:claude-opus-4.6
Reviewed-by: Nitin Gote <nitin.r.gote@intel.com>
Link: https://patch.msgid.link/20260317215732.2208976-8-shuicheng.lin@intel.com
Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com>

diff --git a/drivers/gpu/drm/xe/xe_dep_scheduler.h b/drivers/gpu/drm/xe/xe_dep_scheduler.h
index 853961eec64bfc8eb64bc19e9c7e00a34a97bed9..f314fb5d80f5ee8d5e2ca044dbe18f9fe7ee00b6 100644 (file)
--- a/drivers/gpu/drm/xe/xe_dep_scheduler.h
+++ b/drivers/gpu/drm/xe/xe_dep_scheduler.h
@@ -3,6 +3,9 @@
  * Copyright © 2025 Intel Corporation
  */
 
+#ifndef _XE_DEP_SCHEDULER_H_
+#define _XE_DEP_SCHEDULER_H_
+
 #include <linux/types.h>
 
 struct drm_sched_entity;
@@ -19,3 +22,5 @@ void xe_dep_scheduler_fini(struct xe_dep_scheduler *dep_scheduler);
 
 struct drm_sched_entity *
 xe_dep_scheduler_entity(struct xe_dep_scheduler *dep_scheduler);
+
+#endif

diff --git a/drivers/gpu/drm/xe/xe_pcode_api.h b/drivers/gpu/drm/xe/xe_pcode_api.h
index 85cc7478b787ae427c9bccda33a33824b67bc631..b619030b9e1710d3eb6403c44046b861f8b103e6 100644 (file)
--- a/drivers/gpu/drm/xe/xe_pcode_api.h
+++ b/drivers/gpu/drm/xe/xe_pcode_api.h
@@ -3,6 +3,9 @@
  * Copyright © 2022 Intel Corporation
  */
 
+#ifndef _XE_PCODE_API_H_
+#define _XE_PCODE_API_H_
+
 /* Internal to xe_pcode */
 
 #include "regs/xe_reg_defs.h"
@@ -101,3 +104,5 @@
 #define BMG_PCIE_CAP                   XE_REG(0x138340)
 #define   LINK_DOWNGRADE               REG_GENMASK(1, 0)
 #define     DOWNGRADE_CAPABLE          2
+
+#endif