parport: Remove 'drivers' list

The list has been empty since:
 'commit 3275158fa52a ("parport: remove use of devmodel")'

This also means we can remove the 'list_head' from
struct parport_driver.

Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/r/20240502154823.67235-2-linux@treblig.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/parport/share.c b/drivers/parport/share.c
index b714851..2d34f78 100644 (file)
--- a/drivers/parport/share.c
+++ b/drivers/parport/share.c
@@ -49,8 +49,6 @@ static DEFINE_SPINLOCK(parportlist_lock);
 static LIST_HEAD(all_ports);
 static DEFINE_SPINLOCK(full_list_lock);
 
-static LIST_HEAD(drivers);
-
 static DEFINE_MUTEX(registration_lock);
 
 /* What you can do to a port that's gone away.. */
@@ -165,10 +163,6 @@ static int driver_check(struct device_driver *dev_drv, void *_port)
 static void attach_driver_chain(struct parport *port)
 {
        /* caller has exclusive registration_lock */
-       struct parport_driver *drv;
-
-       list_for_each_entry(drv, &drivers, list)
-               drv->attach(port);
 
        /*
         * call the driver_check function of the drivers registered in
@@ -191,10 +185,7 @@ static int driver_detach(struct device_driver *_drv, void *_port)
 /* Call detach(port) for each registered driver. */
 static void detach_driver_chain(struct parport *port)
 {
-       struct parport_driver *drv;
        /* caller has exclusive registration_lock */
-       list_for_each_entry(drv, &drivers, list)
-               drv->detach(port);
 
        /*
         * call the detach function of the drivers registered in

diff --git a/include/linux/parport.h b/include/linux/parport.h
index fff39bc..2a4424b 100644 (file)
--- a/include/linux/parport.h
+++ b/include/linux/parport.h
@@ -258,7 +258,6 @@ struct parport_driver {
        int (*probe)(struct pardevice *);
        struct device_driver driver;
        bool devmodel;
-       struct list_head list;
 };
 
 #define to_parport_driver(n) container_of(n, struct parport_driver, driver)