From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Mon, 27 Nov 2006 16:48:17 +0000 (-0000)
Subject: byteswap ops had extra mask ops - removed
X-Git-Tag: 1_4_0~307
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=10d0d4eec7e3a292917f43f72afae20341d9ba11;p=oweals%2Fbusybox.git

byteswap ops had extra mask ops - removed
---

diff --git a/e2fsprogs/blkid/probe.h b/e2fsprogs/blkid/probe.h
index e1b65246a..78f796419 100644
--- a/e2fsprogs/blkid/probe.h
+++ b/e2fsprogs/blkid/probe.h
@@ -327,8 +327,8 @@ _INLINE_ __u16 blkid_swab16(__u16 val)
 
 _INLINE_ __u64 blkid_swab64(__u64 val)
 {
-	return (blkid_swab32(val >> 32) |
-		(((__u64) blkid_swab32(val & 0xFFFFFFFFUL)) << 32));
+	return blkid_swab32(val >> 32) |
+	       ( ((__u64)blkid_swab32((__u32)val)) << 32 );
 }
 #endif
 
@@ -341,14 +341,14 @@ _INLINE_  __u16 blkid_swab16(__u16 val)
 
 _INLINE_ __u32 blkid_swab32(__u32 val)
 {
-	return ((val>>24) | ((val>>8)&0xFF00) |
-		((val<<8)&0xFF0000) | (val<<24));
+	return (val>>24) | ((val>>8) & 0xFF00) |
+		((val<<8) & 0xFF0000) | (val<<24);
 }
 
 _INLINE_ __u64 blkid_swab64(__u64 val)
 {
-	return (blkid_swab32(val >> 32) |
-		(((__u64) blkid_swab32(val & 0xFFFFFFFFUL)) << 32));
+	return blkid_swab32(val >> 32) |
+	       ( ((__u64)blkid_swab32((__u32)val)) << 32 );
 }
 #endif
 
diff --git a/util-linux/fdisk.c b/util-linux/fdisk.c
index 74c7710da..07dac8bad 100644
--- a/util-linux/fdisk.c
+++ b/util-linux/fdisk.c
@@ -379,19 +379,19 @@ STATIC_OSF void xbsd_print_disklabel(int);
 #define SGI_XVM         0x0d
 #define SGI_ENTIRE_DISK SGI_VOLUME
 #if defined(CONFIG_FEATURE_SGI_LABEL) || defined(CONFIG_FEATURE_SUN_LABEL)
-static unsigned short
-__swap16(unsigned short x)
+static uint16_t
+__swap16(uint16_t x)
 {
-	return (((uint16_t)(x) & 0xFF) << 8) | (((uint16_t)(x) & 0xFF00) >> 8);
+	return (x << 8) | (x >> 8);
 }
 
 static uint32_t
 __swap32(uint32_t x)
 {
-	return (((x & 0xFF) << 24) |
-		((x & 0xFF00) << 8) |
-		((x & 0xFF0000) >> 8) |
-		((x & 0xFF000000) >> 24));
+	return (x << 24) |
+	       ((x & 0xFF00) << 8) |
+	       ((x & 0xFF0000) >> 8) |
+	       (x >> 24);
 }
 #endif
 
diff --git a/util-linux/fdisk_sgi.c b/util-linux/fdisk_sgi.c
index 9d444c0be..548a70bdc 100644
--- a/util-linux/fdisk_sgi.c
+++ b/util-linux/fdisk_sgi.c
@@ -84,10 +84,8 @@ typedef struct {
 #define SGI_INFO_MAGIC          0x00072959
 #define SGI_INFO_MAGIC_SWAPPED  0x59290700
 
-#define SGI_SSWAP16(x) (sgi_other_endian ? __swap16(x) \
-				 : (uint16_t)(x))
-#define SGI_SSWAP32(x) (sgi_other_endian ? __swap32(x) \
-				 : (uint32_t)(x))
+#define SGI_SSWAP16(x) (sgi_other_endian ? __swap16(x) : (uint16_t)(x))
+#define SGI_SSWAP32(x) (sgi_other_endian ? __swap32(x) : (uint32_t)(x))
 
 #define sgilabel ((sgi_partition *)MBRbuffer)
 #define sgiparam (sgilabel->devparam)
diff --git a/util-linux/fdisk_sun.c b/util-linux/fdisk_sun.c
index 6973fbf30..1e8f2e525 100644
--- a/util-linux/fdisk_sun.c
+++ b/util-linux/fdisk_sun.c
@@ -2,10 +2,8 @@
 
 #define SUN_LABEL_MAGIC          0xDABE
 #define SUN_LABEL_MAGIC_SWAPPED  0xBEDA
-#define SUN_SSWAP16(x) (sun_other_endian ? __swap16(x) \
-				 : (uint16_t)(x))
-#define SUN_SSWAP32(x) (sun_other_endian ? __swap32(x) \
-				 : (uint32_t)(x))
+#define SUN_SSWAP16(x) (sun_other_endian ? __swap16(x) : (uint16_t)(x))
+#define SUN_SSWAP32(x) (sun_other_endian ? __swap32(x) : (uint32_t)(x))
 
 /* Copied from linux/major.h */
 #define FLOPPY_MAJOR    2