[PATCH] staging: comedi: refactor pcmad driver to remove forward declarations

From: H Hartley Sweeten
Date: Fri Apr 27 2012 - 18:48:15 EST


Move the module_init/module_exit routines and the associated
struct comedi_driver and other variables to the end of the source.
This is more typical of how other drivers are written and removes
the need for the forward declarations.

Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
Cc: Ian Abbott <abbotti@xxxxxxxxx>
Cc: Mori Hess <fmhess@xxxxxxxxxxxxxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---

diff --git a/drivers/staging/comedi/drivers/pcmad.c b/drivers/staging/comedi/drivers/pcmad.c
index 23b3d77..fe8ef66 100644
--- a/drivers/staging/comedi/drivers/pcmad.c
+++ b/drivers/staging/comedi/drivers/pcmad.c
@@ -57,19 +57,8 @@ struct pcmad_board_struct {
const char *name;
int n_ai_bits;
};
-static const struct pcmad_board_struct pcmad_boards[] = {
- {
- .name = "pcmad12",
- .n_ai_bits = 12,
- },
- {
- .name = "pcmad16",
- .n_ai_bits = 16,
- },
-};

#define this_board ((const struct pcmad_board_struct *)(dev->board_ptr))
-#define n_pcmad_boards ARRAY_SIZE(pcmad_boards)

struct pcmad_priv_struct {
int differential;
@@ -77,31 +66,6 @@ struct pcmad_priv_struct {
};
#define devpriv ((struct pcmad_priv_struct *)dev->private)

-static int pcmad_attach(struct comedi_device *dev, struct comedi_devconfig *it);
-static int pcmad_detach(struct comedi_device *dev);
-static struct comedi_driver driver_pcmad = {
- .driver_name = "pcmad",
- .module = THIS_MODULE,
- .attach = pcmad_attach,
- .detach = pcmad_detach,
- .board_name = &pcmad_boards[0].name,
- .num_names = n_pcmad_boards,
- .offset = sizeof(pcmad_boards[0]),
-};
-
-static int __init driver_pcmad_init_module(void)
-{
- return comedi_driver_register(&driver_pcmad);
-}
-
-static void __exit driver_pcmad_cleanup_module(void)
-{
- comedi_driver_unregister(&driver_pcmad);
-}
-
-module_init(driver_pcmad_init_module);
-module_exit(driver_pcmad_cleanup_module);
-
#define TIMEOUT 100

static int pcmad_ai_insn_read(struct comedi_device *dev,
@@ -188,6 +152,37 @@ static int pcmad_detach(struct comedi_device *dev)
return 0;
}

+static const struct pcmad_board_struct pcmad_boards[] = {
+ {
+ .name = "pcmad12",
+ .n_ai_bits = 12,
+ }, {
+ .name = "pcmad16",
+ .n_ai_bits = 16,
+ },
+};
+static struct comedi_driver driver_pcmad = {
+ .driver_name = "pcmad",
+ .module = THIS_MODULE,
+ .attach = pcmad_attach,
+ .detach = pcmad_detach,
+ .board_name = &pcmad_boards[0].name,
+ .num_names = ARRAY_SIZE(pcmad_boards),
+ .offset = sizeof(pcmad_boards[0]),
+};
+
+static int __init driver_pcmad_init_module(void)
+{
+ return comedi_driver_register(&driver_pcmad);
+}
+module_init(driver_pcmad_init_module);
+
+static void __exit driver_pcmad_cleanup_module(void)
+{
+ comedi_driver_unregister(&driver_pcmad);
+}
+module_exit(driver_pcmad_cleanup_module);
+
MODULE_AUTHOR("Comedi http://www.comedi.org";);
MODULE_DESCRIPTION("Comedi low-level driver");
MODULE_LICENSE("GPL");
--
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