From 1b9ae0c92925ac40489be526d67d0010d0724ce0 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Thu, 21 May 2020 22:14:22 +0200
Subject: [PATCH] wireless: Use linux/stddef.h instead of stddef.h

When compiling inside the kernel include linux/stddef.h instead of
stddef.h. When I compile this header file in backports for power PC I
run into a conflict with ptrdiff_t. I was unable to reproduce this in
mainline kernel. I still would like to fix this problem in the kernel.

Fixes: 6989310f5d43 ("wireless: Use offsetof instead of custom macro.")
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Link: https://lore.kernel.org/r/20200521201422.16493-1-hauke@hauke-m.de
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/uapi/linux/wireless.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

--- a/include/uapi/linux/wireless.h
+++ b/include/uapi/linux/wireless.h
@@ -74,7 +74,11 @@
 #include <linux/socket.h>		/* for "struct sockaddr" et al	*/
 #include <linux/if.h>			/* for IFNAMSIZ and co... */
 
-#include <stddef.h>                     /* for offsetof */
+#ifdef __KERNEL__
+#	include <linux/stddef.h>	/* for offsetof */
+#else
+#	include <stddef.h>		/* for offsetof */
+#endif
 
 /***************************** VERSION *****************************/
 /*