# \[PATCH 01/11\] UAPI: drm: Fix use of C++ keywords as structural members \[ver \#2\]

- From: David Howells \<hidden\>
- Date: 2018-09-06 09:18:33 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2018/09/5373377
- Thread: https://ratatoskr.run/linux-api/2018/09/143352/t.md

```text
The i810 and msm drm drivers use C++ keywords as structural members.  Fix
this by inserting an anonymous union that provides an alternative name and
then hide the reserved name in C++.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Rob Clark <redacted>
cc: David Airlie <redacted>
cc: <redacted>
cc: <redacted>
cc: <redacted>
---

 include/uapi/drm/i810_drm.h |    7 ++++++-
 include/uapi/drm/msm_drm.h  |    7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/include/uapi/drm/i810_drm.h b/include/uapi/drm/i810_drm.h
index d285d5e72e6a..617d79ec3fc5 100644
--- a/include/uapi/drm/i810_drm.h
+++ b/include/uapi/drm/i810_drm.h
@@ -266,7 +266,12 @@ typedef struct _drm_i810_copy_t {
 #define PR_MASK              (0x7<<18)
 
 typedef struct drm_i810_dma {
-	void *virtual;
+	union {
+#ifndef __cplusplus
+		void *virtual;
+#endif
+		void *_virtual;
+	};
 	int request_idx;
 	int request_size;
 	int granted;
diff --git a/include/uapi/drm/msm_drm.h b/include/uapi/drm/msm_drm.h
index c06d0a5bdd80..e99bab72d58c 100644
--- a/include/uapi/drm/msm_drm.h
+++ b/include/uapi/drm/msm_drm.h
@@ -148,7 +148,12 @@ struct drm_msm_gem_cpu_fini {
  */
 struct drm_msm_gem_submit_reloc {
 	__u32 submit_offset;  /* in, offset from submit_bo */
-	__u32 or;             /* in, value OR'd with result */
+	union {
+#ifndef __cplusplus
+		__u32 or;	/* in, value OR'd with result */
+#endif
+		__u32 _or;	/* in, value OR'd with result */
+	};
 	__s32 shift;          /* in, amount of left shift (can be negative) */
 	__u32 reloc_idx;      /* in, index of reloc_bo buffer */
 	__u64 reloc_offset;   /* in, offset from start of reloc_bo */

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```