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unicode: pass a UNICODE_AGE() tripple to utf8_load

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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>
This commit is contained in:
Christoph Hellwig 2021-09-15 09:00:00 +02:00 • committed by Gabriel Krisman Bertazi
parent f3a9c82396
commit 49bd03cc7e
7 changed files with 65 additions and 86 deletions
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14
fs/unicode/utf8n.h
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@ -11,19 +11,9 @@
#include <linux/export.h>
#include <linux/string.h>
#include <linux/module.h>
#include <linux/unicode.h>
/* Encoding a unicode version number as a single unsigned int. */
#define UNICODE_MAJ_SHIFT (16)
#define UNICODE_MIN_SHIFT (8)
#define UNICODE_AGE(MAJ, MIN, REV) \
(((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) | \
((unsigned int)(MIN) << UNICODE_MIN_SHIFT) | \
((unsigned int)(REV)))
/* Highest unicode version supported by the data tables. */
extern int utf8version_is_supported(u8 maj, u8 min, u8 rev);
extern int utf8version_latest(void);
int utf8version_is_supported(unsigned int version);
/*
* Look for the correct const struct utf8data for a unicode version.