From e922b095ead468c3e98a91d9a625dd3e4765ce73 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Fri, 20 Aug 2021 12:33:48 +1000
Subject: drm/i915: use linux/stddef.h due to "isystem: trim/fixup stdarg.h and
 other headers"
Git-commit: 1645cca9da91a85167394a34fcfe1cb5dd336d7f
Patch-mainline: v5.15-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

After merging the drm tree, today's linux-next build (x86_64 allmodconfig)
failed like this:

In file included from drivers/gpu/drm/i915/i915_debugfs.c:39:
drivers/gpu/drm/i915/gt/intel_gt_requests.h:9:10: fatal error: stddef.h: No such file or directory
    9 | #include <stddef.h>
      |          ^~~~~~~~~~

Caused by commit

  564f963eabd1 ("isystem: delete global -isystem compile option")

from the kbuild tree interacting with commit

  b97060a99b01 ("drm/i915/guc: Update intel_gt_wait_for_idle to work with GuC")

Fixes: b97060a99b01 ("drm/i915/guc: Update intel_gt_wait_for_idle to work with GuC")
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210820123348.6535a87e@canb.auug.org.au
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/i915/gt/intel_gt_requests.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_requests.h b/drivers/gpu/drm/i915/gt/intel_gt_requests.h
index 51dbe0e3294e..d2969f68dd64 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_requests.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_requests.h
@@ -6,7 +6,7 @@
 #ifndef INTEL_GT_REQUESTS_H
 #define INTEL_GT_REQUESTS_H
 
-#include <stddef.h>
+#include <linux/stddef.h>
 
 struct intel_engine_cs;
 struct intel_gt;
-- 
2.38.1