linux-kernel - [PATCH] uapi: fix linux/kexec.h userspace compilation errors

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Date:   Thu, 23 Feb 2017 01:46:46 +0300
From:   "Dmitry V. Levin" <ldv@...linux.org>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     kexec@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH] uapi: fix linux/kexec.h userspace compilation errors

Include <stddef.h> (guarded by #ifndef __KERNEL__) to fix the following
linux/kexec.h userspace compilation errors:

/usr/include/linux/kexec.h:53:2: error: unknown type name 'size_t'
  size_t bufsz;
/usr/include/linux/kexec.h:55:2: error: unknown type name 'size_t'
  size_t memsz;

Signed-off-by: Dmitry V. Levin <ldv@...linux.org>
---
 include/uapi/linux/kexec.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/uapi/linux/kexec.h b/include/uapi/linux/kexec.h
index aae5ebf..7def5f5 100644
--- a/include/uapi/linux/kexec.h
+++ b/include/uapi/linux/kexec.h
@@ -45,6 +45,9 @@
 #define KEXEC_SEGMENT_MAX 16

 #ifndef __KERNEL__
+
+#include <stddef.h>    /* For size_t. */
+
 /*
  * This structure is used to hold the arguments that are used when
  * loading  kernel binaries.
-- 
ldv