Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright 2023 Red Hat
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*/
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#ifndef UDS_NUMERIC_H
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#define UDS_NUMERIC_H
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#include <linux/unaligned.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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/*
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* These utilities encode or decode a number from an offset in a larger data buffer and then
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* advance the offset pointer to the next field in the buffer.
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*/
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static inline void decode_s64_le(const u8 *buffer, size_t *offset, s64 *decoded)
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{
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*decoded = get_unaligned_le64(buffer + *offset);
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*offset += sizeof(s64);
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}
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static inline void encode_s64_le(u8 *data, size_t *offset, s64 to_encode)
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{
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put_unaligned_le64(to_encode, data + *offset);
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*offset += sizeof(s64);
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}
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static inline void decode_u64_le(const u8 *buffer, size_t *offset, u64 *decoded)
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{
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*decoded = get_unaligned_le64(buffer + *offset);
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*offset += sizeof(u64);
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}
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static inline void encode_u64_le(u8 *data, size_t *offset, u64 to_encode)
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{
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put_unaligned_le64(to_encode, data + *offset);
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*offset += sizeof(u64);
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}
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static inline void decode_s32_le(const u8 *buffer, size_t *offset, s32 *decoded)
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{
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*decoded = get_unaligned_le32(buffer + *offset);
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*offset += sizeof(s32);
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}
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static inline void encode_s32_le(u8 *data, size_t *offset, s32 to_encode)
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{
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put_unaligned_le32(to_encode, data + *offset);
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*offset += sizeof(s32);
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}
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static inline void decode_u32_le(const u8 *buffer, size_t *offset, u32 *decoded)
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{
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*decoded = get_unaligned_le32(buffer + *offset);
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*offset += sizeof(u32);
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}
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static inline void encode_u32_le(u8 *data, size_t *offset, u32 to_encode)
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{
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put_unaligned_le32(to_encode, data + *offset);
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*offset += sizeof(u32);
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}
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static inline void decode_u16_le(const u8 *buffer, size_t *offset, u16 *decoded)
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{
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*decoded = get_unaligned_le16(buffer + *offset);
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*offset += sizeof(u16);
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}
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static inline void encode_u16_le(u8 *data, size_t *offset, u16 to_encode)
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{
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put_unaligned_le16(to_encode, data + *offset);
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*offset += sizeof(u16);
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}
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#endif /* UDS_NUMERIC_H */
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