diff options
| author | Dmitry Torokhov <[email protected]> | 2020-01-10 14:56:04 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <[email protected]> | 2020-01-10 14:56:04 -0800 |
| commit | 1bdd3e05a0a3b4a97ea88bc46fef8fb265c8b94c (patch) | |
| tree | 2244894a9ea0c941a8f32e5f3d196b4ea0eae24b /tools/testing/selftests/bpf/bpf_endian.h | |
| parent | 643dd7416649bea2e8c61d8fdeeefb409a0ca5eb (diff) | |
| parent | c79f46a282390e0f5b306007bf7b11a46d529538 (diff) | |
Merge tag 'v5.5-rc5' into next
Sync up with mainline to get SPI "delay" API changes.
Diffstat (limited to 'tools/testing/selftests/bpf/bpf_endian.h')
| -rw-r--r-- | tools/testing/selftests/bpf/bpf_endian.h | 72 |
1 files changed, 0 insertions, 72 deletions
diff --git a/tools/testing/selftests/bpf/bpf_endian.h b/tools/testing/selftests/bpf/bpf_endian.h deleted file mode 100644 index fbe28008450f..000000000000 --- a/tools/testing/selftests/bpf/bpf_endian.h +++ /dev/null @@ -1,72 +0,0 @@ -/* SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) */ -#ifndef __BPF_ENDIAN__ -#define __BPF_ENDIAN__ - -#include <linux/stddef.h> -#include <linux/swab.h> - -/* LLVM's BPF target selects the endianness of the CPU - * it compiles on, or the user specifies (bpfel/bpfeb), - * respectively. The used __BYTE_ORDER__ is defined by - * the compiler, we cannot rely on __BYTE_ORDER from - * libc headers, since it doesn't reflect the actual - * requested byte order. - * - * Note, LLVM's BPF target has different __builtin_bswapX() - * semantics. It does map to BPF_ALU | BPF_END | BPF_TO_BE - * in bpfel and bpfeb case, which means below, that we map - * to cpu_to_be16(). We could use it unconditionally in BPF - * case, but better not rely on it, so that this header here - * can be used from application and BPF program side, which - * use different targets. - */ -#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ -# define __bpf_ntohs(x) __builtin_bswap16(x) -# define __bpf_htons(x) __builtin_bswap16(x) -# define __bpf_constant_ntohs(x) ___constant_swab16(x) -# define __bpf_constant_htons(x) ___constant_swab16(x) -# define __bpf_ntohl(x) __builtin_bswap32(x) -# define __bpf_htonl(x) __builtin_bswap32(x) -# define __bpf_constant_ntohl(x) ___constant_swab32(x) -# define __bpf_constant_htonl(x) ___constant_swab32(x) -# define __bpf_be64_to_cpu(x) __builtin_bswap64(x) -# define __bpf_cpu_to_be64(x) __builtin_bswap64(x) -# define __bpf_constant_be64_to_cpu(x) ___constant_swab64(x) -# define __bpf_constant_cpu_to_be64(x) ___constant_swab64(x) -#elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__ -# define __bpf_ntohs(x) (x) -# define __bpf_htons(x) (x) -# define __bpf_constant_ntohs(x) (x) -# define __bpf_constant_htons(x) (x) -# define __bpf_ntohl(x) (x) -# define __bpf_htonl(x) (x) -# define __bpf_constant_ntohl(x) (x) -# define __bpf_constant_htonl(x) (x) -# define __bpf_be64_to_cpu(x) (x) -# define __bpf_cpu_to_be64(x) (x) -# define __bpf_constant_be64_to_cpu(x) (x) -# define __bpf_constant_cpu_to_be64(x) (x) -#else -# error "Fix your compiler's __BYTE_ORDER__?!" -#endif - -#define bpf_htons(x) \ - (__builtin_constant_p(x) ? \ - __bpf_constant_htons(x) : __bpf_htons(x)) -#define bpf_ntohs(x) \ - (__builtin_constant_p(x) ? \ - __bpf_constant_ntohs(x) : __bpf_ntohs(x)) -#define bpf_htonl(x) \ - (__builtin_constant_p(x) ? \ - __bpf_constant_htonl(x) : __bpf_htonl(x)) -#define bpf_ntohl(x) \ - (__builtin_constant_p(x) ? \ - __bpf_constant_ntohl(x) : __bpf_ntohl(x)) -#define bpf_cpu_to_be64(x) \ - (__builtin_constant_p(x) ? \ - __bpf_constant_cpu_to_be64(x) : __bpf_cpu_to_be64(x)) -#define bpf_be64_to_cpu(x) \ - (__builtin_constant_p(x) ? \ - __bpf_constant_be64_to_cpu(x) : __bpf_be64_to_cpu(x)) - -#endif /* __BPF_ENDIAN__ */ |