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modpost: replace tdb_hash() with hash_str() 

Use a helper available in scripts/include/hash.h.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
This commit is contained in:
Masahiro Yamada 2024-11-23 17:36:08 +09:00
parent 6b1fabce73
commit 5eaea85187
1 changed files with 3 additions and 15 deletions
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18
scripts/mod/modpost.c
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@ -21,6 +21,7 @@
#include <stdbool.h> #include <stdbool.h>
#include <errno.h> #include <errno.h>
#include <hash.h>
#include <hashtable.h> #include <hashtable.h>
#include <list.h> #include <list.h>
#include <xalloc.h> #include <xalloc.h>
@ -210,19 +211,6 @@ struct symbol {
static HASHTABLE_DEFINE(symbol_hashtable, 1U << 10); static HASHTABLE_DEFINE(symbol_hashtable, 1U << 10);
/* This is based on the hash algorithm from gdbm, via tdb */
static inline unsigned int tdb_hash(const char *name)
{
unsigned value; /* Used to compute the hash value. */
unsigned i; /* Used to cycle through random values. */
/* Set the initial value from the key size. */
for (value = 0x238F13AF * strlen(name), i = 0; name[i]; i++)
value = (value + (((unsigned char *)name)[i] << (i*5 % 24)));
return (1103515243 * value + 12345);
}
/** /**
* Allocate a new symbols for use in the hash of exported symbols or * Allocate a new symbols for use in the hash of exported symbols or
* the list of unresolved symbols per module * the list of unresolved symbols per module
@ -240,7 +228,7 @@ static struct symbol *alloc_symbol(const char *name)
/* For the hash of exported symbols */ /* For the hash of exported symbols */
static void hash_add_symbol(struct symbol *sym) static void hash_add_symbol(struct symbol *sym)
{ {
hash_add(symbol_hashtable, &sym->hnode, tdb_hash(sym->name)); hash_add(symbol_hashtable, &sym->hnode, hash_str(sym->name));
} }
static void sym_add_unresolved(const char *name, struct module *mod, bool weak) static void sym_add_unresolved(const char *name, struct module *mod, bool weak)
@ -261,7 +249,7 @@ static struct symbol *sym_find_with_module(const char *name, struct module *mod)
if (name[0] == '.') if (name[0] == '.')
name++; name++;
hash_for_each_possible(symbol_hashtable, s, hnode, tdb_hash(name)) { hash_for_each_possible(symbol_hashtable, s, hnode, hash_str(name)) {
if (strcmp(s->name, name) == 0 && (!mod || s->module == mod)) if (strcmp(s->name, name) == 0 && (!mod || s->module == mod))
return s; return s;
} }