usb: gadget: move bind() callback back to struct usb_composite_driver

This partly reverts 07a18bd7 ("usb gadget: don't save bind callback in
struct usb_composite_driver") and fixes new drivers. The section missmatch
problems was solved by whitelisting structs in question via __ref.

Cc: devel@driverdev.osuosl.org
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>

18 files changed, 36 insertions, 24 deletions

diff --git a/drivers/staging/ccg/ccg.c b/drivers/staging/ccg/ccg.c
index 6a7aab8d9bf5..eadda5574b2a 100644
--- a/drivers/staging/ccg/ccg.c
+++ b/drivers/staging/ccg/ccg.c
@@ -1162,6 +1162,7 @@ static int ccg_usb_unbind(struct usb_composite_dev *cdev)
 static struct usb_composite_driver ccg_usb_driver = {
         .name           = "configurable_usb",
         .dev            = &device_desc,
+        .bind           = ccg_bind,
         .unbind         = ccg_usb_unbind,
         .needs_serial   = true,
         .iManufacturer  = "Linux Foundation",
@@ -1275,7 +1276,7 @@ static int __init init(void)
         composite_driver.setup = ccg_setup;
         composite_driver.disconnect = ccg_disconnect;
 
-        err = usb_composite_probe(&ccg_usb_driver, ccg_bind);
+        err = usb_composite_probe(&ccg_usb_driver);
         if (err) {
                 class_destroy(ccg_class);
                 kfree(dev);
diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c
index dc5cd51de7d4..65a2f3cbcde3 100644
--- a/drivers/usb/gadget/acm_ms.c
+++ b/drivers/usb/gadget/acm_ms.c
@@ -237,6 +237,7 @@ static __refdata struct usb_composite_driver acm_ms_driver = {
         .dev            = &device_desc,
         .max_speed      = USB_SPEED_SUPER,
         .strings        = dev_strings,
+        .bind           = acm_ms_bind,
         .unbind         = __exit_p(acm_ms_unbind),
 };
 
@@ -246,7 +247,7 @@ MODULE_LICENSE("GPL v2");
 
 static int __init init(void)
 {
-        return usb_composite_probe(&acm_ms_driver, acm_ms_bind);
+        return usb_composite_probe(&acm_ms_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/audio.c b/drivers/usb/gadget/audio.c
index e539490e7733..dd339bc5b40c 100644
--- a/drivers/usb/gadget/audio.c
+++ b/drivers/usb/gadget/audio.c
@@ -203,12 +203,13 @@ static __refdata struct usb_composite_driver audio_driver = {
         .dev            = &device_desc,
         .strings        = audio_strings,
         .max_speed      = USB_SPEED_HIGH,
+        .bind           = audio_bind,
         .unbind         = __exit_p(audio_unbind),
 };
 
 static int __init init(void)
 {
-        return usb_composite_probe(&audio_driver, audio_bind);
+        return usb_composite_probe(&audio_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/cdc2.c b/drivers/usb/gadget/cdc2.c
index 00b65ac7a2ef..b7d984b54ca9 100644
--- a/drivers/usb/gadget/cdc2.c
+++ b/drivers/usb/gadget/cdc2.c
@@ -237,6 +237,7 @@ static __refdata struct usb_composite_driver cdc_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_HIGH,
+        .bind           = cdc_bind,
         .unbind         = __exit_p(cdc_unbind),
 };
 
@@ -246,7 +247,7 @@ MODULE_LICENSE("GPL");
 
 static int __init init(void)
 {
-        return usb_composite_probe(&cdc_driver, cdc_bind);
+        return usb_composite_probe(&cdc_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 402e5bd8b3e5..071d15c44116 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1617,12 +1617,9 @@ static struct usb_gadget_driver composite_driver = {
  * while it was binding.  That would usually be done in order to wait for
  * some userspace participation.
  */
-int usb_composite_probe(struct usb_composite_driver *driver,
-                               int (*bind)(struct usb_composite_dev *cdev))
+int usb_composite_probe(struct usb_composite_driver *driver)
 {
-        if (!driver || !driver->dev || composite)
-                return -EINVAL;
-        if (!bind && !driver->bind)
+        if (!driver || !driver->dev || composite || !driver->bind)
                 return -EINVAL;
 
         if (!driver->name)
@@ -1633,8 +1630,6 @@ int usb_composite_probe(struct usb_composite_driver *driver,
         composite_driver.driver.name = driver->name;
         composite_driver.max_speed = driver->max_speed;
         composite = driver;
-        if (!driver->bind)
-                driver->bind = bind;
 
         return usb_gadget_probe_driver(&composite_driver, composite_bind);
 }
diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 49a7dac06b1d..4580ec09cc53 100644
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -393,6 +393,7 @@ static __refdata struct usb_composite_driver eth_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_SUPER,
+        .bind           = eth_bind,
         .unbind         = __exit_p(eth_unbind),
 };
 
@@ -402,7 +403,7 @@ MODULE_LICENSE("GPL");
 
 static int __init init(void)
 {
-        return usb_composite_probe(&eth_driver, eth_bind);
+        return usb_composite_probe(&eth_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c
index d1312c404afa..da9809f55cb5 100644
--- a/drivers/usb/gadget/g_ffs.c
+++ b/drivers/usb/gadget/g_ffs.c
@@ -168,6 +168,7 @@ static __refdata struct usb_composite_driver gfs_driver = {
         .dev            = &gfs_dev_desc,
         .strings        = gfs_dev_strings,
         .max_speed      = USB_SPEED_HIGH,
+        .bind           = gfs_bind,
         .unbind         = gfs_unbind,
         .iProduct       = DRIVER_DESC,
 };
@@ -268,7 +269,7 @@ static int functionfs_ready_callback(struct ffs_data *ffs)
         }
         gfs_registered = true;
 
-        ret = usb_composite_probe(&gfs_driver, gfs_bind);
+        ret = usb_composite_probe(&gfs_driver);
         if (unlikely(ret < 0))
                 gfs_registered = false;
 
diff --git a/drivers/usb/gadget/gmidi.c b/drivers/usb/gadget/gmidi.c
index ae46f69b718a..1e3cd378a2d7 100644
--- a/drivers/usb/gadget/gmidi.c
+++ b/drivers/usb/gadget/gmidi.c
@@ -189,12 +189,13 @@ static __refdata struct usb_composite_driver midi_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_HIGH,
+        .bind           = midi_bind,
         .unbind         = __exit_p(midi_unbind),
 };
 
 static int __init midi_init(void)
 {
-        return usb_composite_probe(&midi_driver, midi_bind);
+        return usb_composite_probe(&midi_driver);
 }
 module_init(midi_init);
 
diff --git a/drivers/usb/gadget/hid.c b/drivers/usb/gadget/hid.c
index 34e139e700b4..8502e56d73bc 100644
--- a/drivers/usb/gadget/hid.c
+++ b/drivers/usb/gadget/hid.c
@@ -247,6 +247,7 @@ static __refdata struct usb_composite_driver hidg_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_HIGH,
+        .bind           = hid_bind,
         .unbind         = __exit_p(hid_unbind),
 };
 
@@ -272,7 +273,7 @@ static int __init hidg_init(void)
         if (status < 0)
                 return status;
 
-        status = usb_composite_probe(&hidg_driver, hid_bind);
+        status = usb_composite_probe(&hidg_driver);
         if (status < 0)
                 platform_driver_unregister(&hidg_plat_driver);
 
diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c
index 5df117e3f78d..480edbc368e5 100644
--- a/drivers/usb/gadget/mass_storage.c
+++ b/drivers/usb/gadget/mass_storage.c
@@ -162,6 +162,7 @@ static __refdata struct usb_composite_driver msg_driver = {
         .iProduct       = DRIVER_DESC,
         .max_speed      = USB_SPEED_SUPER,
         .needs_serial   = 1,
+        .bind           = msg_bind,
 };
 
 MODULE_DESCRIPTION(DRIVER_DESC);
@@ -170,7 +171,7 @@ MODULE_LICENSE("GPL");
 
 static int __init msg_init(void)
 {
-        return usb_composite_probe(&msg_driver, msg_bind);
+        return usb_composite_probe(&msg_driver);
 }
 module_init(msg_init);
 
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 7e5852a28a93..13db7ccb9571 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -343,6 +343,7 @@ static __refdata struct usb_composite_driver multi_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_HIGH,
+        .bind           = multi_bind,
         .unbind         = __exit_p(multi_unbind),
         .iProduct       = DRIVER_DESC,
         .needs_serial   = 1,
@@ -351,7 +352,7 @@ static __refdata struct usb_composite_driver multi_driver = {
 
 static int __init multi_init(void)
 {
-        return usb_composite_probe(&multi_driver, multi_bind);
+        return usb_composite_probe(&multi_driver);
 }
 module_init(multi_init);
 
diff --git a/drivers/usb/gadget/ncm.c b/drivers/usb/gadget/ncm.c
index 5079bf659e31..9a20057896cd 100644
--- a/drivers/usb/gadget/ncm.c
+++ b/drivers/usb/gadget/ncm.c
@@ -220,6 +220,7 @@ static __refdata struct usb_composite_driver ncm_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_HIGH,
+        .bind           = gncm_bind,
         .unbind         = __exit_p(gncm_unbind),
 };
 
@@ -229,7 +230,7 @@ MODULE_LICENSE("GPL");
 
 static int __init init(void)
 {
-        return usb_composite_probe(&ncm_driver, gncm_bind);
+        return usb_composite_probe(&ncm_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c
index 936d0afc4527..a5b5e7162fef 100644
--- a/drivers/usb/gadget/nokia.c
+++ b/drivers/usb/gadget/nokia.c
@@ -242,12 +242,13 @@ static __refdata struct usb_composite_driver nokia_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_HIGH,
+        .bind           = nokia_bind,
         .unbind         = __exit_p(nokia_unbind),
 };
 
 static int __init nokia_init(void)
 {
-        return usb_composite_probe(&nokia_driver, nokia_bind);
+        return usb_composite_probe(&nokia_driver);
 }
 module_init(nokia_init);
 
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index 0aab51766ce6..33c0c07493e8 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -1274,6 +1274,7 @@ static __refdata struct usb_composite_driver printer_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_HIGH,
+        .bind           = printer_bind,
         .unbind         = printer_unbind,
 };
 
@@ -1297,7 +1298,7 @@ init(void)
                 return status;
         }
 
-        status = usb_composite_probe(&printer_driver, printer_bind);
+        status = usb_composite_probe(&printer_driver);
         if (status) {
                 class_destroy(usb_gadget_class);
                 unregister_chrdev_region(g_printer_devno, 1);
diff --git a/drivers/usb/gadget/serial.c b/drivers/usb/gadget/serial.c
index 7b0b6f40ed07..ea3f8e9344ae 100644
--- a/drivers/usb/gadget/serial.c
+++ b/drivers/usb/gadget/serial.c
@@ -243,6 +243,7 @@ static __refdata struct usb_composite_driver gserial_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_SUPER,
+        .bind           = gs_bind,
 };
 
 static int __init init(void)
@@ -271,7 +272,7 @@ static int __init init(void)
         }
         strings_dev[STRING_DESCRIPTION_IDX].s = serial_config_driver.label;
 
-        return usb_composite_probe(&gserial_driver, gs_bind);
+        return usb_composite_probe(&gserial_driver);
 }
 module_init(init);
 
diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c
index 28fef844a06a..35ca09af9b4a 100644
--- a/drivers/usb/gadget/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/tcm_usb_gadget.c
@@ -2441,12 +2441,13 @@ static __refdata struct usb_composite_driver usbg_driver = {
         .dev            = &usbg_device_desc,
         .strings        = usbg_strings,
         .max_speed      = USB_SPEED_SUPER,
+        .bind           = usb_target_bind,
         .unbind         = guas_unbind,
 };
 
 static int usbg_attach(struct usbg_tpg *tpg)
 {
-        return usb_composite_probe(&usbg_driver, usb_target_bind);
+        return usb_composite_probe(&usbg_driver);
 }
 
 static void usbg_detach(struct usbg_tpg *tpg)
diff --git a/drivers/usb/gadget/webcam.c b/drivers/usb/gadget/webcam.c
index d946f19482e8..2a617c3f5a40 100644
--- a/drivers/usb/gadget/webcam.c
+++ b/drivers/usb/gadget/webcam.c
@@ -395,13 +395,14 @@ static __refdata struct usb_composite_driver webcam_driver = {
         .dev            = &webcam_device_descriptor,
         .strings        = webcam_device_strings,
         .max_speed      = USB_SPEED_SUPER,
+        .bind           = webcam_bind,
         .unbind         = webcam_unbind,
 };
 
 static int __init
 webcam_init(void)
 {
-        return usb_composite_probe(&webcam_driver, webcam_bind);
+        return usb_composite_probe(&webcam_driver);
 }
 
 static void __exit
diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index 5db33cbe755b..90df613cccc0 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -339,6 +339,7 @@ static __refdata struct usb_composite_driver zero_driver = {
         .dev            = &device_desc,
         .strings        = dev_strings,
         .max_speed      = USB_SPEED_SUPER,
+        .bind           = zero_bind,
         .unbind         = zero_unbind,
         .suspend        = zero_suspend,
         .resume         = zero_resume,
@@ -349,7 +350,7 @@ MODULE_LICENSE("GPL");
 
 static int __init init(void)
 {
-        return usb_composite_probe(&zero_driver, zero_bind);
+        return usb_composite_probe(&zero_driver);
 }
 module_init(init);