module_param: avoid bool abuse, add bint for special cases.

For historical reasons, we allow module_param(bool) to take an int (or
an unsigned int).  That's going away.

A few drivers really want an int: they set it to -1 and a parameter
will set it to 0 or 1.  This sucks: reading them from sysfs will give
'Y' for both -1 and 1, but if we change it to an int, then the users
might be broken (if they did "param" instead of "param=1").

Use a new 'bint' parser for them.

(ntfs has a different problem: it needs an int for debug_msgs because
it's also exposed via sysctl.)

Cc: Steve Glendinning <[email protected]>
Cc: Jean Delvare <[email protected]>
Cc: Guenter Roeck <[email protected]>
Cc: Hoang-Nam Nguyen <[email protected]>
Cc: Christoph Raisch <[email protected]>
Cc: Roland Dreier <[email protected]>
Cc: Sean Hefty <[email protected]>
Cc: Hal Rosenstock <[email protected]>
Cc: [email protected]
Cc: Anton Altaparmakov <[email protected]>
Cc: Jaroslav Kysela <[email protected]>
Cc: Takashi Iwai <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
Acked-by: Takashi Iwai <[email protected]> (For the sound part)
Acked-by: Guenter Roeck <[email protected]> (For the hwmon driver)
Signed-off-by: Rusty Russell <[email protected]>

drivers/s390/cio/cmf.c

@@ -98,7 +98,7 @@ enum cmb_format {
  * enum cmb_format.
  */
 static int format = CMF_AUTODETECT;
-module_param(format, bool, 0444);
+module_param(format, bint, 0444);
 
 /**
  * struct cmb_operations - functions to use depending on cmb_format