1 #ifndef _LINUX_VIRTIO_BYTEORDER_H 2 #define _LINUX_VIRTIO_BYTEORDER_H 3 #include <linux/types.h> 4 #include <uapi/linux/virtio_types.h> 5 6 static inline bool virtio_legacy_is_little_endian(void) 7 { 8 #ifdef __LITTLE_ENDIAN 9 return true; 10 #else 11 return false; 12 #endif 13 } 14 15 static inline u16 __virtio16_to_cpu(bool little_endian, __virtio16 val) 16 { 17 if (little_endian) 18 return le16_to_cpu((__force __le16)val); 19 else 20 return be16_to_cpu((__force __be16)val); 21 } 22 23 static inline __virtio16 __cpu_to_virtio16(bool little_endian, u16 val) 24 { 25 if (little_endian) 26 return (__force __virtio16)cpu_to_le16(val); 27 else 28 return (__force __virtio16)cpu_to_be16(val); 29 } 30 31 static inline u32 __virtio32_to_cpu(bool little_endian, __virtio32 val) 32 { 33 if (little_endian) 34 return le32_to_cpu((__force __le32)val); 35 else 36 return be32_to_cpu((__force __be32)val); 37 } 38 39 static inline __virtio32 __cpu_to_virtio32(bool little_endian, u32 val) 40 { 41 if (little_endian) 42 return (__force __virtio32)cpu_to_le32(val); 43 else 44 return (__force __virtio32)cpu_to_be32(val); 45 } 46 47 static inline u64 __virtio64_to_cpu(bool little_endian, __virtio64 val) 48 { 49 if (little_endian) 50 return le64_to_cpu((__force __le64)val); 51 else 52 return be64_to_cpu((__force __be64)val); 53 } 54 55 static inline __virtio64 __cpu_to_virtio64(bool little_endian, u64 val) 56 { 57 if (little_endian) 58 return (__force __virtio64)cpu_to_le64(val); 59 else 60 return (__force __virtio64)cpu_to_be64(val); 61 } 62 63 #endif /* _LINUX_VIRTIO_BYTEORDER */ 64