[PATCH v8 5/9] module.h: MODULE_DEVICE_TABLE for built-in modules
From: Allen Webb <hidden>
Date: 2022-12-19 19:19:36
Also in:
linux-usb, lkml
Subsystem:
module support, the rest · Maintainers:
Luis Chamberlain, Petr Pavlu, Daniel Gomez, Sami Tolvanen, Linus Torvalds
Implement MODULE_DEVICE_TABLE for build-in modules to make it possible to generate a builtin.alias file to complement modules.alias. Signed-off-by: Allen Webb <redacted> --- include/linux/module.h | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/include/linux/module.h b/include/linux/module.h
index ec61fb53979a9..3d1b04ca63505 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h@@ -243,7 +243,20 @@ extern void cleanup_module(void); extern typeof(name) __mod_##type##__##name##_device_table \ __attribute__ ((unused, alias(__stringify(name)))) #else /* !MODULE */ -#define MODULE_DEVICE_TABLE(type, name) +/* + * The names may not be unique for built-in modules, so include the module name + * to guarantee uniqueness. + * + * Note that extern is needed because modpost reads these symbols to generate + * modalias entries for each match id in each device table. They are not used + * at runtime. + */ +#define MODULE_DEVICE_TABLE(type, name) \ +extern void *CONCATENATE( \ + CONCATENATE(__mod_##type##__##name##__, \ + __KBUILD_MODNAME), \ + _device_table) \ + __attribute__ ((unused, alias(__stringify(name)))) #endif /* Version of form [<epoch>:]<version>[-<extra-version>].
--
2.37.3