Create additional attribute in struct module in order for each module to store its associate kconfig CONFIG_* symbol.
The goal is to enable each module to expose in /sys its corresponding CONFIG_* option. The value of this attribute will be dynamically pegged by modpost without requiring extra work from the driver developers. Further, this information will be used by a hardware interogation tool to extract build information about the existent devices. This patch is part of a research project within Google Summer of Code of porting 'make localmodconfig' for backported drivers. Signed-off-by: Cristina Moraru <[email protected]> --- include/linux/module.h | 1 + kernel/module.c | 1 + 2 files changed, 2 insertions(+) diff --git a/include/linux/module.h b/include/linux/module.h index 3daf2b3..bef5e44 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -353,6 +353,7 @@ struct module { struct module_attribute *modinfo_attrs; const char *version; const char *srcversion; + const char *kconfig_symbol; struct kobject *holders_dir; /* Exported symbols */ diff --git a/kernel/module.c b/kernel/module.c index 5f71aa6..4463c6c 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -757,6 +757,7 @@ static struct module_attribute modinfo_##field = { \ MODINFO_ATTR(version); MODINFO_ATTR(srcversion); +MODINFO_ATTR(kconfig_symbol); static char last_unloaded_module[MODULE_NAME_LEN+1]; -- 2.7.4
