linux-kernel - [PATCH] linux/types.h: remove prehistoric ifndefs

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Date:	Thu, 11 Jun 2015 11:43:58 +0200
From:	Rasmus Villemoes <linux@...musvillemoes.dk>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] linux/types.h: remove prehistoric ifndefs

Whatever the "historical reasons" were back around 1996 when this
comment was added,

  git grep -E '\b_(S?SIZE|TIME|CLOCK|PTRDIFF|CADDR)_T\b'

seems to say that they are no longer relevant. Relieve the
preprocessor from a little work.

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 include/linux/types.h | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/include/linux/types.h b/include/linux/types.h
index 59698be03490..eb0533481505 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -45,39 +45,12 @@ typedef __kernel_old_gid_t	old_gid_t;
 typedef __kernel_loff_t		loff_t;
 #endif
 
-/*
- * The following typedefs are also protected by individual ifdefs for
- * historical reasons:
- */
-#ifndef _SIZE_T
-#define _SIZE_T
 typedef __kernel_size_t		size_t;
-#endif
-
-#ifndef _SSIZE_T
-#define _SSIZE_T
 typedef __kernel_ssize_t	ssize_t;
-#endif
-
-#ifndef _PTRDIFF_T
-#define _PTRDIFF_T
 typedef __kernel_ptrdiff_t	ptrdiff_t;
-#endif
-
-#ifndef _TIME_T
-#define _TIME_T
 typedef __kernel_time_t		time_t;
-#endif
-
-#ifndef _CLOCK_T
-#define _CLOCK_T
 typedef __kernel_clock_t	clock_t;
-#endif
-
-#ifndef _CADDR_T
-#define _CADDR_T
 typedef __kernel_caddr_t	caddr_t;
-#endif
 
 /* bsd */
 typedef unsigned char		u_char;
-- 
2.1.3

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