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d="scan'208";a="71813473" From: Lin Liu To: CC: Lin Liu , Andrew Cooper , George Dunlap , Jan Beulich , Julien Grall , Bertrand Marquis , Stefano Stabellini , Wei Liu Subject: [PATCH v5 6/6] byteorder: Remove byteorder Date: Mon, 23 May 2022 10:50:51 -0400 Message-ID: <1b9957326f5018c38ce6c523e3e5ab67f012ac00.1653314499.git.lin.liu@citrix.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: References: MIME-Version: 1.0 include/xen/byteswap.h has simplify the interface, just clean the old interface No functional change Signed-off-by: Lin Liu Reviewed-by: Andrew Cooper --- Cc: Andrew Cooper Cc: George Dunlap Cc: Jan Beulich Cc: Julien Grall Cc: Bertrand Marquis Cc: Stefano Stabellini Cc: Wei Liu --- xen/include/xen/byteorder/big_endian.h | 102 ------------ xen/include/xen/byteorder/generic.h | 68 -------- xen/include/xen/byteorder/little_endian.h | 102 ------------ xen/include/xen/byteorder/swab.h | 183 ---------------------- 4 files changed, 455 deletions(-) delete mode 100644 xen/include/xen/byteorder/big_endian.h delete mode 100644 xen/include/xen/byteorder/generic.h delete mode 100644 xen/include/xen/byteorder/little_endian.h delete mode 100644 xen/include/xen/byteorder/swab.h diff --git a/xen/include/xen/byteorder/big_endian.h b/xen/include/xen/byteorder/big_endian.h deleted file mode 100644 index 40eb80a390..0000000000 --- a/xen/include/xen/byteorder/big_endian.h +++ /dev/null @@ -1,102 +0,0 @@ -#ifndef __XEN_BYTEORDER_BIG_ENDIAN_H__ -#define __XEN_BYTEORDER_BIG_ENDIAN_H__ - -#ifndef __BIG_ENDIAN -#define __BIG_ENDIAN 4321 -#endif -#ifndef __BIG_ENDIAN_BITFIELD -#define __BIG_ENDIAN_BITFIELD -#endif - -#include -#include - -#define __constant_cpu_to_le64(x) ((__force __le64)___constant_swab64((x))) -#define __constant_le64_to_cpu(x) ___constant_swab64((__force __u64)(__le64)(x)) -#define __constant_cpu_to_le32(x) ((__force __le32)___constant_swab32((x))) -#define __constant_le32_to_cpu(x) ___constant_swab32((__force __u32)(__le32)(x)) -#define __constant_cpu_to_le16(x) ((__force __le16)___constant_swab16((x))) -#define __constant_le16_to_cpu(x) ___constant_swab16((__force __u16)(__le16)(x)) -#define __constant_cpu_to_be64(x) ((__force __be64)(__u64)(x)) -#define __constant_be64_to_cpu(x) ((__force __u64)(__be64)(x)) -#define __constant_cpu_to_be32(x) ((__force __be32)(__u32)(x)) -#define __constant_be32_to_cpu(x) ((__force __u32)(__be32)(x)) -#define __constant_cpu_to_be16(x) ((__force __be16)(__u16)(x)) -#define __constant_be16_to_cpu(x) ((__force __u16)(__be16)(x)) -#define __cpu_to_le64(x) ((__force __le64)__swab64((x))) -#define __le64_to_cpu(x) __swab64((__force __u64)(__le64)(x)) -#define __cpu_to_le32(x) ((__force __le32)__swab32((x))) -#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) -#define __cpu_to_le16(x) ((__force __le16)__swab16((x))) -#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) -#define __cpu_to_be64(x) ((__force __be64)(__u64)(x)) -#define __be64_to_cpu(x) ((__force __u64)(__be64)(x)) -#define __cpu_to_be32(x) ((__force __be32)(__u32)(x)) -#define __be32_to_cpu(x) ((__force __u32)(__be32)(x)) -#define __cpu_to_be16(x) ((__force __be16)(__u16)(x)) -#define __be16_to_cpu(x) ((__force __u16)(__be16)(x)) - -static inline __le64 __cpu_to_le64p(const __u64 *p) -{ - return (__force __le64)__swab64p(p); -} -static inline __u64 __le64_to_cpup(const __le64 *p) -{ - return __swab64p((__u64 *)p); -} -static inline __le32 __cpu_to_le32p(const __u32 *p) -{ - return (__force __le32)__swab32p(p); -} -static inline __u32 __le32_to_cpup(const __le32 *p) -{ - return __swab32p((__u32 *)p); -} -static inline __le16 __cpu_to_le16p(const __u16 *p) -{ - return (__force __le16)__swab16p(p); -} -static inline __u16 __le16_to_cpup(const __le16 *p) -{ - return __swab16p((__u16 *)p); -} -static inline __be64 __cpu_to_be64p(const __u64 *p) -{ - return (__force __be64)*p; -} -static inline __u64 __be64_to_cpup(const __be64 *p) -{ - return (__force __u64)*p; -} -static inline __be32 __cpu_to_be32p(const __u32 *p) -{ - return (__force __be32)*p; -} -static inline __u32 __be32_to_cpup(const __be32 *p) -{ - return (__force __u32)*p; -} -static inline __be16 __cpu_to_be16p(const __u16 *p) -{ - return (__force __be16)*p; -} -static inline __u16 __be16_to_cpup(const __be16 *p) -{ - return (__force __u16)*p; -} -#define __cpu_to_le64s(x) __swab64s((x)) -#define __le64_to_cpus(x) __swab64s((x)) -#define __cpu_to_le32s(x) __swab32s((x)) -#define __le32_to_cpus(x) __swab32s((x)) -#define __cpu_to_le16s(x) __swab16s((x)) -#define __le16_to_cpus(x) __swab16s((x)) -#define __cpu_to_be64s(x) do {} while (0) -#define __be64_to_cpus(x) do {} while (0) -#define __cpu_to_be32s(x) do {} while (0) -#define __be32_to_cpus(x) do {} while (0) -#define __cpu_to_be16s(x) do {} while (0) -#define __be16_to_cpus(x) do {} while (0) - -#include - -#endif /* __XEN_BYTEORDER_BIG_ENDIAN_H__ */ diff --git a/xen/include/xen/byteorder/generic.h b/xen/include/xen/byteorder/generic.h deleted file mode 100644 index 8a0006b755..0000000000 --- a/xen/include/xen/byteorder/generic.h +++ /dev/null @@ -1,68 +0,0 @@ -#ifndef __XEN_BYTEORDER_GENERIC_H__ -#define __XEN_BYTEORDER_GENERIC_H__ - -/* - * Generic Byte-reordering support - * - * The "... p" macros, like le64_to_cpup, can be used with pointers - * to unaligned data, but there will be a performance penalty on - * some architectures. Use get_unaligned for unaligned data. - * - * The following macros are to be defined by : - * - * Conversion of XX-bit integers (16- 32- or 64-) - * between native CPU format and little/big endian format - * 64-bit stuff only defined for proper architectures - * cpu_to_[bl]eXX(__uXX x) - * [bl]eXX_to_cpu(__uXX x) - * - * The same, but takes a pointer to the value to convert - * cpu_to_[bl]eXXp(__uXX x) - * [bl]eXX_to_cpup(__uXX x) - * - * The same, but change in situ - * cpu_to_[bl]eXXs(__uXX x) - * [bl]eXX_to_cpus(__uXX x) - * - * See asm-foo/byteorder.h for examples of how to provide - * architecture-optimized versions - */ - -#define cpu_to_le64 __cpu_to_le64 -#define le64_to_cpu __le64_to_cpu -#define cpu_to_le32 __cpu_to_le32 -#define le32_to_cpu __le32_to_cpu -#define cpu_to_le16 __cpu_to_le16 -#define le16_to_cpu __le16_to_cpu -#define cpu_to_be64 __cpu_to_be64 -#define be64_to_cpu __be64_to_cpu -#define cpu_to_be32 __cpu_to_be32 -#define be32_to_cpu __be32_to_cpu -#define cpu_to_be16 __cpu_to_be16 -#define be16_to_cpu __be16_to_cpu -#define cpu_to_le64p __cpu_to_le64p -#define le64_to_cpup __le64_to_cpup -#define cpu_to_le32p __cpu_to_le32p -#define le32_to_cpup __le32_to_cpup -#define cpu_to_le16p __cpu_to_le16p -#define le16_to_cpup __le16_to_cpup -#define cpu_to_be64p __cpu_to_be64p -#define be64_to_cpup __be64_to_cpup -#define cpu_to_be32p __cpu_to_be32p -#define be32_to_cpup __be32_to_cpup -#define cpu_to_be16p __cpu_to_be16p -#define be16_to_cpup __be16_to_cpup -#define cpu_to_le64s __cpu_to_le64s -#define le64_to_cpus __le64_to_cpus -#define cpu_to_le32s __cpu_to_le32s -#define le32_to_cpus __le32_to_cpus -#define cpu_to_le16s __cpu_to_le16s -#define le16_to_cpus __le16_to_cpus -#define cpu_to_be64s __cpu_to_be64s -#define be64_to_cpus __be64_to_cpus -#define cpu_to_be32s __cpu_to_be32s -#define be32_to_cpus __be32_to_cpus -#define cpu_to_be16s __cpu_to_be16s -#define be16_to_cpus __be16_to_cpus - -#endif /* __XEN_BYTEORDER_GENERIC_H__ */ diff --git a/xen/include/xen/byteorder/little_endian.h b/xen/include/xen/byteorder/little_endian.h deleted file mode 100644 index 4955632793..0000000000 --- a/xen/include/xen/byteorder/little_endian.h +++ /dev/null @@ -1,102 +0,0 @@ -#ifndef __XEN_BYTEORDER_LITTLE_ENDIAN_H__ -#define __XEN_BYTEORDER_LITTLE_ENDIAN_H__ - -#ifndef __LITTLE_ENDIAN -#define __LITTLE_ENDIAN 1234 -#endif -#ifndef __LITTLE_ENDIAN_BITFIELD -#define __LITTLE_ENDIAN_BITFIELD -#endif - -#include -#include - -#define __constant_cpu_to_le64(x) ((__force __le64)(__u64)(x)) -#define __constant_le64_to_cpu(x) ((__force __u64)(__le64)(x)) -#define __constant_cpu_to_le32(x) ((__force __le32)(__u32)(x)) -#define __constant_le32_to_cpu(x) ((__force __u32)(__le32)(x)) -#define __constant_cpu_to_le16(x) ((__force __le16)(__u16)(x)) -#define __constant_le16_to_cpu(x) ((__force __u16)(__le16)(x)) -#define __constant_cpu_to_be64(x) ((__force __be64)___constant_swab64((x))) -#define __constant_be64_to_cpu(x) ___constant_swab64((__force __u64)(__be64)(x)) -#define __constant_cpu_to_be32(x) ((__force __be32)___constant_swab32((x))) -#define __constant_be32_to_cpu(x) ___constant_swab32((__force __u32)(__be32)(x)) -#define __constant_cpu_to_be16(x) ((__force __be16)___constant_swab16((x))) -#define __constant_be16_to_cpu(x) ___constant_swab16((__force __u16)(__be16)(x)) -#define __cpu_to_le64(x) ((__force __le64)(__u64)(x)) -#define __le64_to_cpu(x) ((__force __u64)(__le64)(x)) -#define __cpu_to_le32(x) ((__force __le32)(__u32)(x)) -#define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) -#define __cpu_to_le16(x) ((__force __le16)(__u16)(x)) -#define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) -#define __cpu_to_be64(x) ((__force __be64)__swab64((x))) -#define __be64_to_cpu(x) __swab64((__force __u64)(__be64)(x)) -#define __cpu_to_be32(x) ((__force __be32)__swab32((x))) -#define __be32_to_cpu(x) __swab32((__force __u32)(__be32)(x)) -#define __cpu_to_be16(x) ((__force __be16)__swab16((x))) -#define __be16_to_cpu(x) __swab16((__force __u16)(__be16)(x)) - -static inline __le64 __cpu_to_le64p(const __u64 *p) -{ - return (__force __le64)*p; -} -static inline __u64 __le64_to_cpup(const __le64 *p) -{ - return (__force __u64)*p; -} -static inline __le32 __cpu_to_le32p(const __u32 *p) -{ - return (__force __le32)*p; -} -static inline __u32 __le32_to_cpup(const __le32 *p) -{ - return (__force __u32)*p; -} -static inline __le16 __cpu_to_le16p(const __u16 *p) -{ - return (__force __le16)*p; -} -static inline __u16 __le16_to_cpup(const __le16 *p) -{ - return (__force __u16)*p; -} -static inline __be64 __cpu_to_be64p(const __u64 *p) -{ - return (__force __be64)__swab64p(p); -} -static inline __u64 __be64_to_cpup(const __be64 *p) -{ - return __swab64p((__u64 *)p); -} -static inline __be32 __cpu_to_be32p(const __u32 *p) -{ - return (__force __be32)__swab32p(p); -} -static inline __u32 __be32_to_cpup(const __be32 *p) -{ - return __swab32p((__u32 *)p); -} -static inline __be16 __cpu_to_be16p(const __u16 *p) -{ - return (__force __be16)__swab16p(p); -} -static inline __u16 __be16_to_cpup(const __be16 *p) -{ - return __swab16p((__u16 *)p); -} -#define __cpu_to_le64s(x) do {} while (0) -#define __le64_to_cpus(x) do {} while (0) -#define __cpu_to_le32s(x) do {} while (0) -#define __le32_to_cpus(x) do {} while (0) -#define __cpu_to_le16s(x) do {} while (0) -#define __le16_to_cpus(x) do {} while (0) -#define __cpu_to_be64s(x) __swab64s((x)) -#define __be64_to_cpus(x) __swab64s((x)) -#define __cpu_to_be32s(x) __swab32s((x)) -#define __be32_to_cpus(x) __swab32s((x)) -#define __cpu_to_be16s(x) __swab16s((x)) -#define __be16_to_cpus(x) __swab16s((x)) - -#include - -#endif /* __XEN_BYTEORDER_LITTLE_ENDIAN_H__ */ diff --git a/xen/include/xen/byteorder/swab.h b/xen/include/xen/byteorder/swab.h deleted file mode 100644 index b7e30f0503..0000000000 --- a/xen/include/xen/byteorder/swab.h +++ /dev/null @@ -1,183 +0,0 @@ -#ifndef __XEN_BYTEORDER_SWAB_H__ -#define __XEN_BYTEORDER_SWAB_H__ - -/* - * Byte-swapping, independently from CPU endianness - * swabXX[ps]?(foo) - * - * Francois-Rene Rideau 19971205 - * separated swab functions from cpu_to_XX, - * to clean up support for bizarre-endian architectures. - */ - -/* casts are necessary for constants, because we never know how for sure - * how U/UL/ULL map to __u16, __u32, __u64. At least not in a portable way. - */ -#define ___swab16(x) \ -({ \ - __u16 __x = (x); \ - ((__u16)( \ - (((__u16)(__x) & (__u16)0x00ffU) << 8) | \ - (((__u16)(__x) & (__u16)0xff00U) >> 8) )); \ -}) - -#define ___swab32(x) \ -({ \ - __u32 __x = (x); \ - ((__u32)( \ - (((__u32)(__x) & (__u32)0x000000ffUL) << 24) | \ - (((__u32)(__x) & (__u32)0x0000ff00UL) << 8) | \ - (((__u32)(__x) & (__u32)0x00ff0000UL) >> 8) | \ - (((__u32)(__x) & (__u32)0xff000000UL) >> 24) )); \ -}) - -#define ___swab64(x) \ -({ \ - __u64 __x = (x); \ - ((__u64)( \ - (__u64)(((__u64)(__x) & (__u64)0x00000000000000ffULL) << 56) | \ - (__u64)(((__u64)(__x) & (__u64)0x000000000000ff00ULL) << 40) | \ - (__u64)(((__u64)(__x) & (__u64)0x0000000000ff0000ULL) << 24) | \ - (__u64)(((__u64)(__x) & (__u64)0x00000000ff000000ULL) << 8) | \ - (__u64)(((__u64)(__x) & (__u64)0x000000ff00000000ULL) >> 8) | \ - (__u64)(((__u64)(__x) & (__u64)0x0000ff0000000000ULL) >> 24) | \ - (__u64)(((__u64)(__x) & (__u64)0x00ff000000000000ULL) >> 40) | \ - (__u64)(((__u64)(__x) & (__u64)0xff00000000000000ULL) >> 56) )); \ -}) - -#define ___constant_swab16(x) \ - ((__u16)( \ - (((__u16)(x) & (__u16)0x00ffU) << 8) | \ - (((__u16)(x) & (__u16)0xff00U) >> 8) )) -#define ___constant_swab32(x) \ - ((__u32)( \ - (((__u32)(x) & (__u32)0x000000ffUL) << 24) | \ - (((__u32)(x) & (__u32)0x0000ff00UL) << 8) | \ - (((__u32)(x) & (__u32)0x00ff0000UL) >> 8) | \ - (((__u32)(x) & (__u32)0xff000000UL) >> 24) )) -#define ___constant_swab64(x) \ - ((__u64)( \ - (__u64)(((__u64)(x) & (__u64)0x00000000000000ffULL) << 56) | \ - (__u64)(((__u64)(x) & (__u64)0x000000000000ff00ULL) << 40) | \ - (__u64)(((__u64)(x) & (__u64)0x0000000000ff0000ULL) << 24) | \ - (__u64)(((__u64)(x) & (__u64)0x00000000ff000000ULL) << 8) | \ - (__u64)(((__u64)(x) & (__u64)0x000000ff00000000ULL) >> 8) | \ - (__u64)(((__u64)(x) & (__u64)0x0000ff0000000000ULL) >> 24) | \ - (__u64)(((__u64)(x) & (__u64)0x00ff000000000000ULL) >> 40) | \ - (__u64)(((__u64)(x) & (__u64)0xff00000000000000ULL) >> 56) )) - -/* - * provide defaults when no architecture-specific optimization is detected - */ -#ifndef __arch__swab16 -# define __arch__swab16(x) ({ __u16 __tmp = (x) ; ___swab16(__tmp); }) -#endif -#ifndef __arch__swab32 -# define __arch__swab32(x) ({ __u32 __tmp = (x) ; ___swab32(__tmp); }) -#endif -#ifndef __arch__swab64 -# define __arch__swab64(x) ({ __u64 __tmp = (x) ; ___swab64(__tmp); }) -#endif - -#ifndef __arch__swab16p -# define __arch__swab16p(x) __arch__swab16(*(x)) -#endif -#ifndef __arch__swab32p -# define __arch__swab32p(x) __arch__swab32(*(x)) -#endif -#ifndef __arch__swab64p -# define __arch__swab64p(x) __arch__swab64(*(x)) -#endif - -#ifndef __arch__swab16s -# define __arch__swab16s(x) do { *(x) = __arch__swab16p((x)); } while (0) -#endif -#ifndef __arch__swab32s -# define __arch__swab32s(x) do { *(x) = __arch__swab32p((x)); } while (0) -#endif -#ifndef __arch__swab64s -# define __arch__swab64s(x) do { *(x) = __arch__swab64p((x)); } while (0) -#endif - - -/* - * Allow constant folding - */ -#if defined(__GNUC__) && defined(__OPTIMIZE__) -# define __swab16(x) \ -(__builtin_constant_p((__u16)(x)) ? \ - ___swab16((x)) : \ - __fswab16((x))) -# define __swab32(x) \ -(__builtin_constant_p((__u32)(x)) ? \ - ___swab32((x)) : \ - __fswab32((x))) -# define __swab64(x) \ -(__builtin_constant_p((__u64)(x)) ? \ - ___swab64((x)) : \ - __fswab64((x))) -#else -# define __swab16(x) __fswab16(x) -# define __swab32(x) __fswab32(x) -# define __swab64(x) __fswab64(x) -#endif /* OPTIMIZE */ - - -static inline __attribute_const__ __u16 __fswab16(__u16 x) -{ - return __arch__swab16(x); -} -static inline __u16 __swab16p(const __u16 *x) -{ - return __arch__swab16p(x); -} -static inline void __swab16s(__u16 *addr) -{ - __arch__swab16s(addr); -} - -static inline __attribute_const__ __u32 __fswab32(__u32 x) -{ - return __arch__swab32(x); -} -static inline __u32 __swab32p(const __u32 *x) -{ - return __arch__swab32p(x); -} -static inline void __swab32s(__u32 *addr) -{ - __arch__swab32s(addr); -} - -#ifdef __BYTEORDER_HAS_U64__ -static inline __attribute_const__ __u64 __fswab64(__u64 x) -{ -# ifdef __SWAB_64_THRU_32__ - __u32 h = x >> 32; - __u32 l = x & ((1ULL<<32)-1); - return (((__u64)__swab32(l)) << 32) | ((__u64)(__swab32(h))); -# else - return __arch__swab64(x); -# endif -} -static inline __u64 __swab64p(const __u64 *x) -{ - return __arch__swab64p(x); -} -static inline void __swab64s(__u64 *addr) -{ - __arch__swab64s(addr); -} -#endif /* __BYTEORDER_HAS_U64__ */ - -#define swab16 __swab16 -#define swab32 __swab32 -#define swab64 __swab64 -#define swab16p __swab16p -#define swab32p __swab32p -#define swab64p __swab64p -#define swab16s __swab16s -#define swab32s __swab32s -#define swab64s __swab64s - -#endif /* __XEN_BYTEORDER_SWAB_H__ */