forked from mirrors/linux
49bd03cc7e
Don't bother with pointless string parsing when the caller can just pass the version in the format that the core expects. Also remove the fallback to the latest version that none of the callers actually uses. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_UNICODE_H
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#define _LINUX_UNICODE_H
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#include <linux/init.h>
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#include <linux/dcache.h>
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#define UNICODE_MAJ_SHIFT 16
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#define UNICODE_MIN_SHIFT 8
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#define UNICODE_AGE(MAJ, MIN, REV) \
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(((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \
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((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \
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((unsigned int)(REV)))
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static inline u8 unicode_major(unsigned int age)
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{
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return (age >> UNICODE_MAJ_SHIFT) & 0xff;
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}
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static inline u8 unicode_minor(unsigned int age)
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{
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return (age >> UNICODE_MIN_SHIFT) & 0xff;
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}
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static inline u8 unicode_rev(unsigned int age)
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{
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return age & 0xff;
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}
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struct unicode_map {
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unsigned int version;
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};
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int utf8_validate(const struct unicode_map *um, const struct qstr *str);
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int utf8_strncmp(const struct unicode_map *um,
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const struct qstr *s1, const struct qstr *s2);
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int utf8_strncasecmp(const struct unicode_map *um,
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const struct qstr *s1, const struct qstr *s2);
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int utf8_strncasecmp_folded(const struct unicode_map *um,
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const struct qstr *cf,
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const struct qstr *s1);
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int utf8_normalize(const struct unicode_map *um, const struct qstr *str,
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unsigned char *dest, size_t dlen);
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int utf8_casefold(const struct unicode_map *um, const struct qstr *str,
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unsigned char *dest, size_t dlen);
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int utf8_casefold_hash(const struct unicode_map *um, const void *salt,
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struct qstr *str);
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struct unicode_map *utf8_load(unsigned int version);
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void utf8_unload(struct unicode_map *um);
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#endif /* _LINUX_UNICODE_H */
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