sysfs: fix build errors: uevent with CONFIG_SYSFS=n

Fix source files to build with CONFIG_SYSFS=n.
module_subsys is not available.

SYSFS=n, MODULES=y:	T:y
SYSFS=n, MODULES=n:	T:y

SYSFS=y, MODULES=y:	T:y
SYSFS=y, MODULES=n:	T:y

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2 files changed, 25 insertions, 17 deletions

diff --git a/kernel/module.c b/kernel/module.c
index e06b77af23fd..8c25b1a04fa6 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -1074,7 +1074,8 @@ static inline void remove_sect_attrs(struct module *mod)
 }
 #endif /* CONFIG_KALLSYMS */
 
-static int module_add_modinfo_attrs(struct module *mod)
+#ifdef CONFIG_SYSFS
+int module_add_modinfo_attrs(struct module *mod)
 {
         struct module_attribute *attr;
         struct module_attribute *temp_attr;
@@ -1100,7 +1101,7 @@ static int module_add_modinfo_attrs(struct module *mod)
         return error;
 }
 
-static void module_remove_modinfo_attrs(struct module *mod)
+void module_remove_modinfo_attrs(struct module *mod)
 {
         struct module_attribute *attr;
         int i;
@@ -1115,8 +1116,10 @@ static void module_remove_modinfo_attrs(struct module *mod)
         }
         kfree(mod->modinfo_attrs);
 }
+#endif
 
-static int mod_sysfs_init(struct module *mod)
+#ifdef CONFIG_SYSFS
+int mod_sysfs_init(struct module *mod)
 {
         int err;
 
@@ -1139,7 +1142,7 @@ out:
         return err;
 }
 
-static int mod_sysfs_setup(struct module *mod,
+int mod_sysfs_setup(struct module *mod,
                            struct kernel_param *kparam,
                            unsigned int num_params)
 {
@@ -1175,6 +1178,7 @@ out_unreg:
 out:
         return err;
 }
+#endif
 
 static void mod_kobject_remove(struct module *mod)
 {
@@ -2348,6 +2352,7 @@ void print_modules(void)
         printk("\n");
 }
 
+#ifdef CONFIG_SYSFS
 static char *make_driver_name(struct device_driver *drv)
 {
         char *driver_name;
@@ -2422,6 +2427,7 @@ void module_remove_driver(struct device_driver *drv)
         }
 }
 EXPORT_SYMBOL(module_remove_driver);
+#endif
 
 #ifdef CONFIG_MODVERSIONS
 /* Generate the signature for struct module here, too, for modversions. */
diff --git a/kernel/params.c b/kernel/params.c
index 7d231c6c1334..7a751570b56d 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -30,8 +30,6 @@
 #define DEBUGP(fmt, a...)
 #endif
 
-static struct kobj_type module_ktype;
-
 static inline char dash2underscore(char c)
 {
         if (c == '-')
@@ -391,6 +389,7 @@ struct module_param_attrs
         struct param_attribute attrs[0];
 };
 
+#ifdef CONFIG_SYSFS
 #define to_param_attr(n) container_of(n, struct param_attribute, mattr);
 
 static ssize_t param_attr_show(struct module_attribute *mattr,
@@ -426,6 +425,7 @@ static ssize_t param_attr_store(struct module_attribute *mattr,
                 return len;
         return err;
 }
+#endif
 
 #ifdef CONFIG_MODULES
 #define __modinit
@@ -433,6 +433,7 @@ static ssize_t param_attr_store(struct module_attribute *mattr,
 #define __modinit __init
 #endif
 
+#ifdef CONFIG_SYSFS
 /*
  * param_sysfs_setup - setup sysfs support for one module or KBUILD_MODNAME
  * @mk: struct module_kobject (contains parent kobject)
@@ -500,9 +501,7 @@ param_sysfs_setup(struct module_kobject *mk,
         return mp;
 }
 
-
 #ifdef CONFIG_MODULES
-
 /*
  * module_param_sysfs_setup - setup sysfs support for one module
  * @mod: module
@@ -625,7 +624,6 @@ static void __init param_sysfs_builtin(void)
 
 
 /* module-related sysfs stuff */
-#ifdef CONFIG_SYSFS
 
 #define to_module_attr(n) container_of(n, struct module_attribute, attr);
 #define to_module_kobject(n) container_of(n, struct module_kobject, kobj);
@@ -673,6 +671,8 @@ static struct sysfs_ops module_sysfs_ops = {
         .store = module_attr_store,
 };
 
+static struct kobj_type module_ktype;
+
 static int uevent_filter(struct kset *kset, struct kobject *kobj)
 {
         struct kobj_type *ktype = get_ktype(kobj);
@@ -686,19 +686,12 @@ static struct kset_uevent_ops module_uevent_ops = {
         .filter = uevent_filter,
 };
 
-#else
-static struct sysfs_ops module_sysfs_ops = {
-        .show = NULL,
-        .store = NULL,
-};
-#endif
+decl_subsys(module, &module_ktype, &module_uevent_ops);
 
 static struct kobj_type module_ktype = {
         .sysfs_ops =    &module_sysfs_ops,
 };
 
-decl_subsys(module, &module_ktype, &module_uevent_ops);
-
 /*
  * param_sysfs_init - wrapper for built-in params support
  */
@@ -720,6 +713,15 @@ static int __init param_sysfs_init(void)
 }
 subsys_initcall(param_sysfs_init);
 
+#else
+#if 0
+static struct sysfs_ops module_sysfs_ops = {
+        .show = NULL,
+        .store = NULL,
+};
+#endif
+#endif
+
 EXPORT_SYMBOL(param_set_byte);
 EXPORT_SYMBOL(param_get_byte);
 EXPORT_SYMBOL(param_set_short);