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don't bother with explicit length argument for __lookup_constant()

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Have the arrays of constant_table self-terminated (by NULL ->name
in the final entry).  Simplifies lookup_constant() and allows to
reuse the search for enum params as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2019-12-16 13:45:41 -05:00
parent 5eede62529
commit 34264ae3fa
3 changed files with 21 additions and 18 deletions
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4
include/linux/fs_parser.h
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@ -83,9 +83,7 @@ extern int fs_lookup_param(struct fs_context *fc,
bool want_bdev,
struct path *_path);
extern int __lookup_constant(const struct constant_table tbl[], size_t tbl_size,
const char *name, int not_found);
#define lookup_constant(t, n, nf) __lookup_constant(t, ARRAY_SIZE(t), (n), (nf))
extern int lookup_constant(const struct constant_table tbl[], const char *name, int not_found);
#ifdef CONFIG_VALIDATE_FS_PARSER
extern bool validate_constant_table(const struct constant_table *tbl, size_t tbl_size,