linux-kernel - [PATCH 3.12 10/83] conditionally define U32

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Message-Id: <dd86ca3aae59e2f48512805e6df06a5070632730.1430159990.git.jslaby@suse.cz>
Date:	Mon, 27 Apr 2015 23:31:41 +0200
From:	Jiri Slaby <jslaby@...e.cz>
To:	stable@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, Alex Elder <alex.elder@...aro.org>,
	Alex Elder <elder@...aro.org>, Sage Weil <sage@...tank.com>,
	David Miller <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Jiri Slaby <jslaby@...e.cz>
Subject: [PATCH 3.12 10/83] conditionally define U32_MAX

From: Alex Elder <alex.elder@...aro.org>

3.12-stable review patch.  If anyone has any objections, please let me know.

===============

commit 77719536dc00f8fd8f5abe6dadbde5331c37f996 upstream.

The symbol U32_MAX is defined in several spots.  Change these
definitions to be conditional.  This is in preparation for the next
patch, which centralizes the definition in <linux/kernel.h>.

Signed-off-by: Alex Elder <elder@...aro.org>
Cc: Sage Weil <sage@...tank.com>
Cc: David Miller <davem@...emloft.net>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Jiri Slaby <jslaby@...e.cz>
---
 fs/reiserfs/reiserfs.h      | 2 ++
 include/linux/ceph/decode.h | 2 ++
 net/ipv4/tcp_illinois.c     | 2 ++
 3 files changed, 6 insertions(+)

diff --git a/fs/reiserfs/reiserfs.h b/fs/reiserfs/reiserfs.h
index f8adaee537c2..66a2e832fa8d 100644
--- a/fs/reiserfs/reiserfs.h
+++ b/fs/reiserfs/reiserfs.h
@@ -1958,7 +1958,9 @@ struct treepath var = {.path_length = ILLEGAL_PATH_ELEMENT_OFFSET, .reada = 0,}
 #define MAX_US_INT 0xffff
 
 // reiserfs version 2 has max offset 60 bits. Version 1 - 32 bit offset
+#ifndef U32_MAX
 #define U32_MAX (~(__u32)0)
+#endif /* !U32_MAX */
 
 static inline loff_t max_reiserfs_offset(struct inode *inode)
 {
diff --git a/include/linux/ceph/decode.h b/include/linux/ceph/decode.h
index 0442c3d800f0..27fe66a279b1 100644
--- a/include/linux/ceph/decode.h
+++ b/include/linux/ceph/decode.h
@@ -10,6 +10,7 @@
 
 /* This seemed to be the easiest place to define these */
 
+#ifndef U32_MAX
 #define	U8_MAX	((u8)(~0U))
 #define	U16_MAX	((u16)(~0U))
 #define	U32_MAX	((u32)(~0U))
@@ -24,6 +25,7 @@
 #define	S16_MIN	((s16)(-S16_MAX - 1))
 #define	S32_MIN	((s32)(-S32_MAX - 1))
 #define	S64_MIN	((s64)(-S64_MAX - 1LL))
+#endif /* !U32_MAX */
 
 /*
  * in all cases,
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index 834857f3c871..ffb2615d286f 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -23,7 +23,9 @@
 #define ALPHA_MIN	((3*ALPHA_SCALE)/10)	/* ~0.3 */
 #define ALPHA_MAX	(10*ALPHA_SCALE)	/* 10.0 */
 #define ALPHA_BASE	ALPHA_SCALE		/* 1.0 */
+#ifndef U32_MAX
 #define U32_MAX		((u32)~0U)
+#endif /* !U32_MAX */
 #define RTT_MAX		(U32_MAX / ALPHA_MAX)	/* 3.3 secs */
 
 #define BETA_SHIFT	6
-- 
2.3.5

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