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authorJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
committerJonathan Herman <hermanjl@cs.unc.edu>2013-01-22 10:38:37 -0500
commitfcc9d2e5a6c89d22b8b773a64fb4ad21ac318446 (patch)
treea57612d1888735a2ec7972891b68c1ac5ec8faea /arch/avr32/include/asm/swab.h
parent8dea78da5cee153b8af9c07a2745f6c55057fe12 (diff)
Added missing tegra files.HEADmaster
Diffstat (limited to 'arch/avr32/include/asm/swab.h')
-rw-r--r--arch/avr32/include/asm/swab.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/avr32/include/asm/swab.h b/arch/avr32/include/asm/swab.h
new file mode 100644
index 00000000000..14cc737bbca
--- /dev/null
+++ b/arch/avr32/include/asm/swab.h
@@ -0,0 +1,35 @@
1/*
2 * AVR32 byteswapping functions.
3 */
4#ifndef __ASM_AVR32_SWAB_H
5#define __ASM_AVR32_SWAB_H
6
7#include <linux/types.h>
8#include <linux/compiler.h>
9
10#define __SWAB_64_THRU_32__
11
12#ifdef __CHECKER__
13extern unsigned long __builtin_bswap_32(unsigned long x);
14extern unsigned short __builtin_bswap_16(unsigned short x);
15#endif
16
17/*
18 * avr32-linux-gcc versions earlier than 4.2 improperly sign-extends
19 * the result.
20 */
21#if !(__GNUC__ == 4 && __GNUC_MINOR__ < 2)
22static inline __attribute_const__ __u16 __arch_swab16(__u16 val)
23{
24 return __builtin_bswap_16(val);
25}
26#define __arch_swab16 __arch_swab16
27
28static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
29{
30 return __builtin_bswap_32(val);
31}
32#define __arch_swab32 __arch_swab32
33#endif
34
35#endif /* __ASM_AVR32_SWAB_H */