xref: /aosp_15_r20/external/kernel-headers/original/uapi/asm-generic/swab.h (revision f80ad8b4341604f5951dab671d41019a6d7087ce)
1*f80ad8b4SAndroid Build Coastguard Worker /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2*f80ad8b4SAndroid Build Coastguard Worker #ifndef _ASM_GENERIC_SWAB_H
3*f80ad8b4SAndroid Build Coastguard Worker #define _ASM_GENERIC_SWAB_H
4*f80ad8b4SAndroid Build Coastguard Worker 
5*f80ad8b4SAndroid Build Coastguard Worker #include <asm/bitsperlong.h>
6*f80ad8b4SAndroid Build Coastguard Worker 
7*f80ad8b4SAndroid Build Coastguard Worker /*
8*f80ad8b4SAndroid Build Coastguard Worker  * 32 bit architectures typically (but not always) want to
9*f80ad8b4SAndroid Build Coastguard Worker  * set __SWAB_64_THRU_32__. In user space, this is only
10*f80ad8b4SAndroid Build Coastguard Worker  * valid if the compiler supports 64 bit data types.
11*f80ad8b4SAndroid Build Coastguard Worker  */
12*f80ad8b4SAndroid Build Coastguard Worker 
13*f80ad8b4SAndroid Build Coastguard Worker #if __BITS_PER_LONG == 32
14*f80ad8b4SAndroid Build Coastguard Worker #if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
15*f80ad8b4SAndroid Build Coastguard Worker #define __SWAB_64_THRU_32__
16*f80ad8b4SAndroid Build Coastguard Worker #endif
17*f80ad8b4SAndroid Build Coastguard Worker #endif
18*f80ad8b4SAndroid Build Coastguard Worker 
19*f80ad8b4SAndroid Build Coastguard Worker #endif /* _ASM_GENERIC_SWAB_H */
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