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-rw-r--r--fs/ext4/super.c18
-rw-r--r--fs/f2fs/super.c18
-rw-r--r--fs/unicode/utf8-core.c50
-rw-r--r--fs/unicode/utf8-norm.c11
-rw-r--r--fs/unicode/utf8-selftest.c15
-rw-r--r--fs/unicode/utf8n.h14
-rw-r--r--include/linux/unicode.h25
7 files changed, 65 insertions, 86 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 26c0e6fc5bce..85e73093c61a 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -2018,9 +2018,9 @@ static const struct mount_opts {
static const struct ext4_sb_encodings {
__u16 magic;
char *name;
- char *version;
+ unsigned int version;
} ext4_sb_encoding_map[] = {
- {EXT4_ENC_UTF8_12_1, "utf8", "12.1.0"},
+ {EXT4_ENC_UTF8_12_1, "utf8", UNICODE_AGE(12, 1, 0)},
};
static const struct ext4_sb_encodings *
@@ -4166,15 +4166,21 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
encoding = utf8_load(encoding_info->version);
if (IS_ERR(encoding)) {
ext4_msg(sb, KERN_ERR,
- "can't mount with superblock charset: %s-%s "
+ "can't mount with superblock charset: %s-%u.%u.%u "
"not supported by the kernel. flags: 0x%x.",
- encoding_info->name, encoding_info->version,
+ encoding_info->name,
+ unicode_major(encoding_info->version),
+ unicode_minor(encoding_info->version),
+ unicode_rev(encoding_info->version),
encoding_flags);
goto failed_mount;
}
ext4_msg(sb, KERN_INFO,"Using encoding defined by superblock: "
- "%s-%s with flags 0x%hx", encoding_info->name,
- encoding_info->version?:"\b", encoding_flags);
+ "%s-%u.%u.%u with flags 0x%hx", encoding_info->name,
+ unicode_major(encoding_info->version),
+ unicode_minor(encoding_info->version),
+ unicode_rev(encoding_info->version),
+ encoding_flags);
sb->s_encoding = encoding;
sb->s_encoding_flags = encoding_flags;
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 4c457100f18e..3029f71bf2b7 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -259,9 +259,9 @@ void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...)
static const struct f2fs_sb_encodings {
__u16 magic;
char *name;
- char *version;
+ unsigned int version;
} f2fs_sb_encoding_map[] = {
- {F2FS_ENC_UTF8_12_1, "utf8", "12.1.0"},
+ {F2FS_ENC_UTF8_12_1, "utf8", UNICODE_AGE(12, 1, 0)},
};
static const struct f2fs_sb_encodings *
@@ -3847,15 +3847,21 @@ static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
encoding = utf8_load(encoding_info->version);
if (IS_ERR(encoding)) {
f2fs_err(sbi,
- "can't mount with superblock charset: %s-%s "
+ "can't mount with superblock charset: %s-%u.%u.%u "
"not supported by the kernel. flags: 0x%x.",
- encoding_info->name, encoding_info->version,
+ encoding_info->name,
+ unicode_major(encoding_info->version),
+ unicode_minor(encoding_info->version),
+ unicode_rev(encoding_info->version),
encoding_flags);
return PTR_ERR(encoding);
}
f2fs_info(sbi, "Using encoding defined by superblock: "
- "%s-%s with flags 0x%hx", encoding_info->name,
- encoding_info->version?:"\b", encoding_flags);
+ "%s-%u.%u.%u with flags 0x%hx", encoding_info->name,
+ unicode_major(encoding_info->version),
+ unicode_minor(encoding_info->version),
+ unicode_rev(encoding_info->version),
+ encoding_flags);
sbi->sb->s_encoding = encoding;
sbi->sb->s_encoding_flags = encoding_flags;
diff --git a/fs/unicode/utf8-core.c b/fs/unicode/utf8-core.c
index 86f42a078d99..dca2865c3bee 100644
--- a/fs/unicode/utf8-core.c
+++ b/fs/unicode/utf8-core.c
@@ -167,59 +167,19 @@ int utf8_normalize(const struct unicode_map *um, const struct qstr *str,
}
return -EINVAL;
}
-
EXPORT_SYMBOL(utf8_normalize);
-static int utf8_parse_version(const char *version, unsigned int *maj,
- unsigned int *min, unsigned int *rev)
+struct unicode_map *utf8_load(unsigned int version)
{
- substring_t args[3];
- char version_string[12];
- static const struct match_token token[] = {
- {1, "%d.%d.%d"},
- {0, NULL}
- };
-
- strncpy(version_string, version, sizeof(version_string));
-
- if (match_token(version_string, token, args) != 1)
- return -EINVAL;
-
- if (match_int(&args[0], maj) || match_int(&args[1], min) ||
- match_int(&args[2], rev))
- return -EINVAL;
+ struct unicode_map *um;
- return 0;
-}
-
-struct unicode_map *utf8_load(const char *version)
-{
- struct unicode_map *um = NULL;
- int unicode_version;
-
- if (version) {
- unsigned int maj, min, rev;
-
- if (utf8_parse_version(version, &maj, &min, &rev) < 0)
- return ERR_PTR(-EINVAL);
-
- if (!utf8version_is_supported(maj, min, rev))
- return ERR_PTR(-EINVAL);
-
- unicode_version = UNICODE_AGE(maj, min, rev);
- } else {
- unicode_version = utf8version_latest();
- printk(KERN_WARNING"UTF-8 version not specified. "
- "Assuming latest supported version (%d.%d.%d).",
- (unicode_version >> 16) & 0xff,
- (unicode_version >> 8) & 0xff,
- (unicode_version & 0xff));
- }
+ if (!utf8version_is_supported(version))
+ return ERR_PTR(-EINVAL);
um = kzalloc(sizeof(struct unicode_map), GFP_KERNEL);
if (!um)
return ERR_PTR(-ENOMEM);
- um->version = unicode_version;
+ um->version = version;
return um;
}
EXPORT_SYMBOL(utf8_load);
diff --git a/fs/unicode/utf8-norm.c b/fs/unicode/utf8-norm.c
index 1d2d2e5b906a..12abf89ae6ec 100644
--- a/fs/unicode/utf8-norm.c
+++ b/fs/unicode/utf8-norm.c
@@ -15,13 +15,12 @@ struct utf8data {
#include "utf8data.h"
#undef __INCLUDED_FROM_UTF8NORM_C__
-int utf8version_is_supported(u8 maj, u8 min, u8 rev)
+int utf8version_is_supported(unsigned int version)
{
int i = ARRAY_SIZE(utf8agetab) - 1;
- unsigned int sb_utf8version = UNICODE_AGE(maj, min, rev);
while (i >= 0 && utf8agetab[i] != 0) {
- if (sb_utf8version == utf8agetab[i])
+ if (version == utf8agetab[i])
return 1;
i--;
}
@@ -29,12 +28,6 @@ int utf8version_is_supported(u8 maj, u8 min, u8 rev)
}
EXPORT_SYMBOL(utf8version_is_supported);
-int utf8version_latest(void)
-{
- return utf8vers;
-}
-EXPORT_SYMBOL(utf8version_latest);
-
/*
* UTF-8 valid ranges.
*
diff --git a/fs/unicode/utf8-selftest.c b/fs/unicode/utf8-selftest.c
index 6fe8af7edccb..37f33890e012 100644
--- a/fs/unicode/utf8-selftest.c
+++ b/fs/unicode/utf8-selftest.c
@@ -235,7 +235,7 @@ static void check_utf8_nfdicf(void)
static void check_utf8_comparisons(void)
{
int i;
- struct unicode_map *table = utf8_load("12.1.0");
+ struct unicode_map *table = utf8_load(UNICODE_AGE(12, 1, 0));
if (IS_ERR(table)) {
pr_err("%s: Unable to load utf8 %d.%d.%d. Skipping.\n",
@@ -269,18 +269,19 @@ static void check_utf8_comparisons(void)
static void check_supported_versions(void)
{
/* Unicode 7.0.0 should be supported. */
- test(utf8version_is_supported(7, 0, 0));
+ test(utf8version_is_supported(UNICODE_AGE(7, 0, 0)));
/* Unicode 9.0.0 should be supported. */
- test(utf8version_is_supported(9, 0, 0));
+ test(utf8version_is_supported(UNICODE_AGE(9, 0, 0)));
/* Unicode 1x.0.0 (the latest version) should be supported. */
- test(utf8version_is_supported(latest_maj, latest_min, latest_rev));
+ test(utf8version_is_supported(
+ UNICODE_AGE(latest_maj, latest_min, latest_rev)));
/* Next versions don't exist. */
- test(!utf8version_is_supported(13, 0, 0));
- test(!utf8version_is_supported(0, 0, 0));
- test(!utf8version_is_supported(-1, -1, -1));
+ test(!utf8version_is_supported(UNICODE_AGE(13, 0, 0)));
+ test(!utf8version_is_supported(UNICODE_AGE(0, 0, 0)));
+ test(!utf8version_is_supported(UNICODE_AGE(-1, -1, -1)));
}
static int __init init_test_ucd(void)
diff --git a/fs/unicode/utf8n.h b/fs/unicode/utf8n.h
index 0acd530c2c79..85a7bebf6927 100644
--- a/fs/unicode/utf8n.h
+++ b/fs/unicode/utf8n.h
@@ -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.
diff --git a/include/linux/unicode.h b/include/linux/unicode.h
index 0744f81c4b5f..77bb915fd1f0 100644
--- a/include/linux/unicode.h
+++ b/include/linux/unicode.h
@@ -5,6 +5,29 @@
#include <linux/init.h>
#include <linux/dcache.h>
+#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)))
+
+static inline u8 unicode_major(unsigned int age)
+{
+ return (age >> UNICODE_MAJ_SHIFT) & 0xff;
+}
+
+static inline u8 unicode_minor(unsigned int age)
+{
+ return (age >> UNICODE_MIN_SHIFT) & 0xff;
+}
+
+static inline u8 unicode_rev(unsigned int age)
+{
+ return age & 0xff;
+}
+
struct unicode_map {
unsigned int version;
};
@@ -29,7 +52,7 @@ int utf8_casefold(const struct unicode_map *um, const struct qstr *str,
int utf8_casefold_hash(const struct unicode_map *um, const void *salt,
struct qstr *str);
-struct unicode_map *utf8_load(const char *version);
+struct unicode_map *utf8_load(unsigned int version);
void utf8_unload(struct unicode_map *um);
#endif /* _LINUX_UNICODE_H */
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-17 21:11:04 +0300