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usb: mtu3: fix up undefined reference to usb_debug_root 

When CONFIG_USB is not set, and CONFIG_USB_GADGET is set,
there is an issue:

ld:
drivers/usb/mtu3/mtu3_debugfs.o: in function 'ssusb_debugfs_create_root':
mtu3_debugfs.c:(.text+0xba3): undefined reference to 'usb_debug_root'

usb_debug_root is only built when CONFIG_USB is enabled, so here drop it
and use NULL instead.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Chunfeng Yun 2019-05-05 14:02:49 +08:00 committed by Greg Kroah-Hartman
parent a03ff54460
commit 9610450ea3
1 changed files with 1 additions and 2 deletions
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3
drivers/usb/mtu3/mtu3_debugfs.c
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@ -528,8 +528,7 @@ void ssusb_dr_debugfs_init(struct ssusb_mtk *ssusb)
void ssusb_debugfs_create_root(struct ssusb_mtk *ssusb)
{
ssusb->dbgfs_root =
debugfs_create_dir(dev_name(ssusb->dev), usb_debug_root);
ssusb->dbgfs_root = debugfs_create_dir(dev_name(ssusb->dev), NULL);
}
void ssusb_debugfs_remove_root(struct ssusb_mtk *ssusb)