w1: add helper macro module_w1_family
The helper macro module_w1_family can be used in module drivers that
only register a w1 driver in their module init functions. Add this
macro and use it in all applicable drivers.
Link: http://lkml.kernel.org/r/20160531204313.20979-2-afd@ti.com
Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/w1/slaves/w1_ds2406.c b/drivers/w1/slaves/w1_ds2406.c
index d488961..51f2f66 100644
--- a/drivers/w1/slaves/w1_ds2406.c
+++ b/drivers/w1/slaves/w1_ds2406.c
@@ -153,16 +153,4 @@
.fid = W1_FAMILY_DS2406,
.fops = &w1_f12_fops,
};
-
-static int __init w1_f12_init(void)
-{
- return w1_register_family(&w1_family_12);
-}
-
-static void __exit w1_f12_exit(void)
-{
- w1_unregister_family(&w1_family_12);
-}
-
-module_init(w1_f12_init);
-module_exit(w1_f12_exit);
+module_w1_family(w1_family_12);
diff --git a/drivers/w1/slaves/w1_ds2408.c b/drivers/w1/slaves/w1_ds2408.c
index 7dfa0e1..aec5958 100644
--- a/drivers/w1/slaves/w1_ds2408.c
+++ b/drivers/w1/slaves/w1_ds2408.c
@@ -351,16 +351,4 @@
.fid = W1_FAMILY_DS2408,
.fops = &w1_f29_fops,
};
-
-static int __init w1_f29_init(void)
-{
- return w1_register_family(&w1_family_29);
-}
-
-static void __exit w1_f29_exit(void)
-{
- w1_unregister_family(&w1_family_29);
-}
-
-module_init(w1_f29_init);
-module_exit(w1_f29_exit);
+module_w1_family(w1_family_29);
diff --git a/drivers/w1/slaves/w1_ds2413.c b/drivers/w1/slaves/w1_ds2413.c
index ee28fc1..f2e1c51 100644
--- a/drivers/w1/slaves/w1_ds2413.c
+++ b/drivers/w1/slaves/w1_ds2413.c
@@ -135,16 +135,4 @@
.fid = W1_FAMILY_DS2413,
.fops = &w1_f3a_fops,
};
-
-static int __init w1_f3a_init(void)
-{
- return w1_register_family(&w1_family_3a);
-}
-
-static void __exit w1_f3a_exit(void)
-{
- w1_unregister_family(&w1_family_3a);
-}
-
-module_init(w1_f3a_init);
-module_exit(w1_f3a_exit);
+module_w1_family(w1_family_3a);
diff --git a/drivers/w1/slaves/w1_ds2423.c b/drivers/w1/slaves/w1_ds2423.c
index 7e41b7d..4ab54fd 100644
--- a/drivers/w1/slaves/w1_ds2423.c
+++ b/drivers/w1/slaves/w1_ds2423.c
@@ -138,19 +138,7 @@
.fid = W1_COUNTER_DS2423,
.fops = &w1_f1d_fops,
};
-
-static int __init w1_f1d_init(void)
-{
- return w1_register_family(&w1_family_1d);
-}
-
-static void __exit w1_f1d_exit(void)
-{
- w1_unregister_family(&w1_family_1d);
-}
-
-module_init(w1_f1d_init);
-module_exit(w1_f1d_exit);
+module_w1_family(w1_family_1d);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Mika Laitio <lamikr@pilppa.org>");
diff --git a/drivers/w1/slaves/w1_ds2431.c b/drivers/w1/slaves/w1_ds2431.c
index 9c4ff9d..80572cb 100644
--- a/drivers/w1/slaves/w1_ds2431.c
+++ b/drivers/w1/slaves/w1_ds2431.c
@@ -288,19 +288,7 @@
.fid = W1_EEPROM_DS2431,
.fops = &w1_f2d_fops,
};
-
-static int __init w1_f2d_init(void)
-{
- return w1_register_family(&w1_family_2d);
-}
-
-static void __exit w1_f2d_fini(void)
-{
- w1_unregister_family(&w1_family_2d);
-}
-
-module_init(w1_f2d_init);
-module_exit(w1_f2d_fini);
+module_w1_family(w1_family_2d);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Bernhard Weirich <bernhard.weirich@riedel.net>");
diff --git a/drivers/w1/slaves/w1_ds2433.c b/drivers/w1/slaves/w1_ds2433.c
index 72319a9..6cf378c 100644
--- a/drivers/w1/slaves/w1_ds2433.c
+++ b/drivers/w1/slaves/w1_ds2433.c
@@ -305,16 +305,4 @@
.fid = W1_EEPROM_DS2433,
.fops = &w1_f23_fops,
};
-
-static int __init w1_f23_init(void)
-{
- return w1_register_family(&w1_family_23);
-}
-
-static void __exit w1_f23_fini(void)
-{
- w1_unregister_family(&w1_family_23);
-}
-
-module_init(w1_f23_init);
-module_exit(w1_f23_fini);
+module_w1_family(w1_family_23);
diff --git a/drivers/w1/slaves/w1_ds2760.c b/drivers/w1/slaves/w1_ds2760.c
index 59a81cf..ffa37f77 100644
--- a/drivers/w1/slaves/w1_ds2760.c
+++ b/drivers/w1/slaves/w1_ds2760.c
@@ -162,26 +162,13 @@
.fid = W1_FAMILY_DS2760,
.fops = &w1_ds2760_fops,
};
-
-static int __init w1_ds2760_init(void)
-{
- pr_info("1-Wire driver for the DS2760 battery monitor chip - (c) 2004-2005, Szabolcs Gyurko\n");
- return w1_register_family(&w1_ds2760_family);
-}
-
-static void __exit w1_ds2760_exit(void)
-{
- w1_unregister_family(&w1_ds2760_family);
-}
+module_w1_family(w1_ds2760_family);
EXPORT_SYMBOL(w1_ds2760_read);
EXPORT_SYMBOL(w1_ds2760_write);
EXPORT_SYMBOL(w1_ds2760_store_eeprom);
EXPORT_SYMBOL(w1_ds2760_recall_eeprom);
-module_init(w1_ds2760_init);
-module_exit(w1_ds2760_exit);
-
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>");
MODULE_DESCRIPTION("1-wire Driver Dallas 2760 battery monitor chip");
diff --git a/drivers/w1/slaves/w1_ds2780.c b/drivers/w1/slaves/w1_ds2780.c
index e63eb86..f5c2aa4 100644
--- a/drivers/w1/slaves/w1_ds2780.c
+++ b/drivers/w1/slaves/w1_ds2780.c
@@ -154,19 +154,7 @@
.fid = W1_FAMILY_DS2780,
.fops = &w1_ds2780_fops,
};
-
-static int __init w1_ds2780_init(void)
-{
- return w1_register_family(&w1_ds2780_family);
-}
-
-static void __exit w1_ds2780_exit(void)
-{
- w1_unregister_family(&w1_ds2780_family);
-}
-
-module_init(w1_ds2780_init);
-module_exit(w1_ds2780_exit);
+module_w1_family(w1_ds2780_family);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Clifton Barnes <cabarnes@indesign-llc.com>");
diff --git a/drivers/w1/slaves/w1_ds2781.c b/drivers/w1/slaves/w1_ds2781.c
index 99b0f4d..9c03e01 100644
--- a/drivers/w1/slaves/w1_ds2781.c
+++ b/drivers/w1/slaves/w1_ds2781.c
@@ -151,19 +151,7 @@
.fid = W1_FAMILY_DS2781,
.fops = &w1_ds2781_fops,
};
-
-static int __init w1_ds2781_init(void)
-{
- return w1_register_family(&w1_ds2781_family);
-}
-
-static void __exit w1_ds2781_exit(void)
-{
- w1_unregister_family(&w1_ds2781_family);
-}
-
-module_init(w1_ds2781_init);
-module_exit(w1_ds2781_exit);
+module_w1_family(w1_ds2781_family);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Renata Sayakhova <renata@oktetlabs.ru>");
diff --git a/drivers/w1/slaves/w1_ds28e04.c b/drivers/w1/slaves/w1_ds28e04.c
index 365d6df..5e348d3 100644
--- a/drivers/w1/slaves/w1_ds28e04.c
+++ b/drivers/w1/slaves/w1_ds28e04.c
@@ -427,16 +427,4 @@
.fid = W1_FAMILY_DS28E04,
.fops = &w1_f1C_fops,
};
-
-static int __init w1_f1C_init(void)
-{
- return w1_register_family(&w1_family_1C);
-}
-
-static void __exit w1_f1C_fini(void)
-{
- w1_unregister_family(&w1_family_1C);
-}
-
-module_init(w1_f1C_init);
-module_exit(w1_f1C_fini);
+module_w1_family(w1_family_1C);
diff --git a/drivers/w1/w1_family.h b/drivers/w1/w1_family.h
index ed5dcb8..10a7a076 100644
--- a/drivers/w1/w1_family.h
+++ b/drivers/w1/w1_family.h
@@ -88,4 +88,16 @@
void w1_unregister_family(struct w1_family *);
int w1_register_family(struct w1_family *);
+/**
+ * module_w1_driver() - Helper macro for registering a 1-Wire families
+ * @__w1_family: w1_family struct
+ *
+ * Helper macro for 1-Wire families which do not do anything special in module
+ * init/exit. This eliminates a lot of boilerplate. Each module may only
+ * use this macro once, and calling it replaces module_init() and module_exit()
+ */
+#define module_w1_family(__w1_family) \
+ module_driver(__w1_family, w1_register_family, \
+ w1_unregister_family)
+
#endif /* __W1_FAMILY_H */