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Subject[PATCH 3.12 10/83] conditionally define U32_MAX
Date
From: Alex Elder <alex.elder@linaro.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@linaro.org>
Cc: Sage Weil <sage@inktank.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jiri Slaby <jslaby@suse.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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