Commit 69c4cc99 authored by Masahiro Yamada's avatar Masahiro Yamada
Browse files

modpost: add sym_find_with_module() helper 



find_symbol() returns the first symbol found in the hash table. This
table is global, so it may return a symbol from an unexpected module.

There is a case where we want to search for a symbol with a given name
in a specified module.

Add sym_find_with_module(), which receives the module pointer as the
second argument. It is equivalent to find_module() if NULL is passed
as the module pointer.

Signed-off-by: default avatarMasahiro Yamada <masahiroy@kernel.org>
Reviewed-by: default avatarNicolas Schier <nicolas@fjasle.eu>
Tested-by: default avatarNathan Chancellor <nathan@kernel.org>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com> # LLVM-14 (x86-64)
parent 2a66c312

scripts/mod/modpost.c

+7 −2
Original line number Diff line number Diff line
@@ -266,7 +266,7 @@ static void sym_add_unresolved(const char *name, struct module *mod, bool weak) 
	list_add_tail(&sym->list, &mod->unresolved_symbols);

}



static struct symbol *find_symbol(const char *name)

static struct symbol *sym_find_with_module(const char *name, struct module *mod)

{

	struct symbol *s;
@@ -275,12 +275,17 @@ static struct symbol *find_symbol(const char *name) 
		name++;



	for (s = symbolhash[tdb_hash(name) % SYMBOL_HASH_SIZE]; s; s = s->next) {

		if (strcmp(s->name, name) == 0)

		if (strcmp(s->name, name) == 0 && (!mod || s->module == mod))

			return s;

	}

	return NULL;

}



static struct symbol *find_symbol(const char *name)

{

	return sym_find_with_module(name, NULL);

}



struct namespace_list {

	struct list_head list;

	char namespace[];