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Commit 9ae5bd18 authored by Matthias Maennich's avatar Matthias Maennich Committed by Jessica Yu
Browse files

modpost: make updating the symbol namespace explicit 



Setting the symbol namespace of a symbol within sym_add_exported feels
displaced and lead to issues in the current implementation of symbol
namespaces. This patch makes updating the namespace an explicit call to
decouple it from adding a symbol to the export list.

Acked-by: default avatarWill Deacon <will@kernel.org>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: default avatarMatthias Maennich <maennich@google.com>
Signed-off-by: default avatarJessica Yu <jeyu@kernel.org>
parent a2b11184

scripts/mod/modpost.c

+6 −6
Original line number Diff line number Diff line
@@ -385,8 +385,8 @@ static void sym_update_namespace(const char *symname, const char *namespace) 
 * Add an exported symbol - it may have already been added without a

 * CRC, in this case just update the CRC

 **/

static struct symbol *sym_add_exported(const char *name, const char *namespace,

				       struct module *mod, enum export export)

static struct symbol *sym_add_exported(const char *name, struct module *mod,

				       enum export export)

{

	struct symbol *s = find_symbol(name);
@@ -402,7 +402,6 @@ static struct symbol *sym_add_exported(const char *name, const char *namespace, 
			s->module = mod;

		}

	}

	sym_update_namespace(name, namespace);

	s->preloaded = 0;

	s->vmlinux   = is_vmlinux(mod->name);

	s->kernel    = 0;
@@ -764,7 +763,8 @@ static void handle_modversions(struct module *mod, struct elf_info *info, 
		if (strstarts(symname, "__ksymtab_")) {

			name = symname + strlen("__ksymtab_");

			namespace = sym_extract_namespace(&name);

			sym_add_exported(name, namespace, mod, export);

			sym_add_exported(name, mod, export);

			sym_update_namespace(name, namespace);

			free(namespace);

		}

		if (strcmp(symname, "init_module") == 0)
@@ -2472,12 +2472,12 @@ static void read_dump(const char *fname, unsigned int kernel) 
			mod = new_module(modname);

			mod->skip = 1;

		}

		s = sym_add_exported(symname, namespace, mod,

				     export_no(export));

		s = sym_add_exported(symname, mod, export_no(export));

		s->kernel    = kernel;

		s->preloaded = 1;

		s->is_static = 0;

		sym_update_crc(symname, mod, crc, export_no(export));

		sym_update_namespace(symname, namespace);

	}

	release_file(file, size);

	return;