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 bind callback in modpost.
Signed-off-by: Sebastian Andrzej Siewior <bige...@linutronix.de>
---
drivers/usb/gadget/composite.c | 3 ++-
drivers/usb/gadget/dbgp.c | 3 ++-
drivers/usb/gadget/file_storage.c | 4 +++-
drivers/usb/gadget/inode.c | 6 ++++--
drivers/usb/gadget/udc-core.c | 9 ++++-----
include/linux/usb/gadget.h | 6 +++---
6 files changed, 18 insertions(+), 13 deletions(-)
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index ba87057..29d5f70 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1591,6 +1591,7 @@ static struct usb_gadget_driver composite_driver = {
.max_speed = USB_SPEED_HIGH,
#endif
+ .bind = composite_bind,
.unbind = composite_unbind,
.setup = composite_setup,
@@ -1638,7 +1639,7 @@ int usb_composite_probe(struct usb_composite_driver
*driver)
min_t(u8, composite_driver.max_speed, driver->max_speed);
composite = driver;
- return usb_gadget_probe_driver(&composite_driver, composite_bind);
+ return usb_gadget_probe_driver(&composite_driver);
}
/**
diff --git a/drivers/usb/gadget/dbgp.c b/drivers/usb/gadget/dbgp.c
index 19d7bb0..eb81a47 100644
--- a/drivers/usb/gadget/dbgp.c
+++ b/drivers/usb/gadget/dbgp.c
@@ -405,6 +405,7 @@ fail:
static struct usb_gadget_driver dbgp_driver = {
.function = "dbgp",
.max_speed = USB_SPEED_HIGH,
+ .bind = dbgp_bind,
.unbind = dbgp_unbind,
.setup = dbgp_setup,
.disconnect = dbgp_disconnect,
@@ -416,7 +417,7 @@ static struct usb_gadget_driver dbgp_driver = {
static int __init dbgp_init(void)
{
- return usb_gadget_probe_driver(&dbgp_driver, dbgp_bind);
+ return usb_gadget_probe_driver(&dbgp_driver);
}
static void __exit dbgp_exit(void)
diff --git a/drivers/usb/gadget/file_storage.c
b/drivers/usb/gadget/file_storage.c
index a896d73..de4f1ed 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -3606,6 +3606,7 @@ static void fsg_resume(struct usb_gadget *gadget)
static struct usb_gadget_driver fsg_driver = {
.max_speed = USB_SPEED_SUPER,
.function = (char *) fsg_string_product,
+ .bind = fsg_bind,
.unbind = fsg_unbind,
.disconnect = fsg_disconnect,
.setup = fsg_setup,
@@ -3653,7 +3654,8 @@ static int __init fsg_init(void)
if ((rc = fsg_alloc()) != 0)
return rc;
fsg = the_fsg;
- if ((rc = usb_gadget_probe_driver(&fsg_driver, fsg_bind)) != 0)
+ rc = usb_gadget_probe_driver(&fsg_driver);
+ if (rc != 0)
kref_put(&fsg->ref, fsg_release);
return rc;
}
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index e58b164..83c62a7 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -1769,6 +1769,7 @@ static struct usb_gadget_driver gadgetfs_driver = {
.max_speed = USB_SPEED_FULL,
#endif
.function = (char *) driver_desc,
+ .bind = gadgetfs_bind,
.unbind = gadgetfs_unbind,
.setup = gadgetfs_setup,
.disconnect = gadgetfs_disconnect,
@@ -1791,6 +1792,7 @@ static int gadgetfs_probe (struct usb_gadget *gadget)
static struct usb_gadget_driver probe_driver = {
.max_speed = USB_SPEED_HIGH,
+ .bind = gadgetfs_probe,
.unbind = gadgetfs_nop,
.setup = (void *)gadgetfs_nop,
.disconnect = gadgetfs_nop,
@@ -1900,7 +1902,7 @@ dev_config (struct file *fd, const char __user *buf,
size_t len, loff_t *ptr)
/* triggers gadgetfs_bind(); then we can enumerate. */
spin_unlock_irq (&dev->lock);
- value = usb_gadget_probe_driver(&gadgetfs_driver, gadgetfs_bind);
+ value = usb_gadget_probe_driver(&gadgetfs_driver);
if (value != 0) {
kfree (dev->buf);
dev->buf = NULL;
@@ -2039,7 +2041,7 @@ gadgetfs_fill_super (struct super_block *sb, void *opts,
int silent)
return -ESRCH;
/* fake probe to determine $CHIP */
- (void) usb_gadget_probe_driver(&probe_driver, gadgetfs_probe);
+ usb_gadget_probe_driver(&probe_driver);
if (!CHIP)
return -ENODEV;
diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c
index bae243c..85e1e2f 100644
--- a/drivers/usb/gadget/udc-core.c
+++ b/drivers/usb/gadget/udc-core.c
@@ -311,13 +311,12 @@ EXPORT_SYMBOL_GPL(usb_del_gadget_udc);
/* ------------------------------------------------------------------------- */
-int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *))
+int usb_gadget_probe_driver(struct usb_gadget_driver *driver)
{
struct usb_udc *udc = NULL;
int ret;
- if (!driver || !bind || !driver->setup)
+ if (!driver || !driver->bind || !driver->setup)
return -EINVAL;
mutex_lock(&udc_lock);
@@ -339,7 +338,7 @@ found:
udc->dev.driver = &driver->driver;
if (udc_is_newstyle(udc)) {
- ret = bind(udc->gadget);
+ ret = driver->bind(udc->gadget);
if (ret)
goto err1;
ret = usb_gadget_udc_start(udc->gadget, driver);
@@ -350,7 +349,7 @@ found:
usb_gadget_connect(udc->gadget);
} else {
- ret = usb_gadget_start(udc->gadget, driver, bind);
+ ret = usb_gadget_start(udc->gadget, driver, driver->bind);
if (ret)
goto err1;
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 9517466..39d3671 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -781,6 +781,7 @@ static inline int usb_gadget_disconnect(struct usb_gadget
*gadget)
* when the host is disconnected. May be called in_interrupt; this
* may not sleep. Some devices can't detect disconnect, so this might
* not be called except as part of controller shutdown.
+ * @bind: the driver's bind callback
* @unbind: Invoked when the driver is unbound from a gadget,
* usually from rmmod (after a disconnect is reported).
* Called in a context that permits sleeping.
@@ -835,6 +836,7 @@ static inline int usb_gadget_disconnect(struct usb_gadget
*gadget)
struct usb_gadget_driver {
char *function;
enum usb_device_speed max_speed;
+ int (*bind)(struct usb_gadget *gadget);
void (*unbind)(struct usb_gadget *);
int (*setup)(struct usb_gadget *,
const struct usb_ctrlrequest *);
@@ -860,7 +862,6 @@ struct usb_gadget_driver {
/**
* usb_gadget_probe_driver - probe a gadget driver
* @driver: the driver being registered
- * @bind: the driver's bind callback
* Context: can sleep
*
* Call this in your gadget driver's module initialization function,
@@ -869,8 +870,7 @@ struct usb_gadget_driver {
* registration call returns. It's expected that the @bind() function will
* be in init sections.
*/
-int usb_gadget_probe_driver(struct usb_gadget_driver *driver,
- int (*bind)(struct usb_gadget *));
+int usb_gadget_probe_driver(struct usb_gadget_driver *driver);
/**
* usb_gadget_unregister_driver - unregister a gadget driver
--
1.7.10.4
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