On Thu, 2019-11-14 at 11:21 +0800, Greg Kroah-Hartman wrote:

On Tue, Nov 12, 2019 at 02:51:58PM +0800, Chunfeng Yun wrote:

quoted

Now the USB gadget subsystem can use the USB debugfs root directory,
so move it's directory from the root of the debugfs filesystem into
the root of usb

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
v2:
  1. abandon new API usb_debugfs_create_dir(), and use usb_debug_root
---
 drivers/usb/gadget/udc/gr_udc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c
index 7a0e9a58c2d8..5faa09a6c770 100644
--- a/drivers/usb/gadget/udc/gr_udc.c
+++ b/drivers/usb/gadget/udc/gr_udc.c

@@ -208,7 +208,7 @@ static void gr_dfs_create(struct gr_udc *dev)
 {
 	const char *name = "gr_udc_state";
 
-	dev->dfs_root = debugfs_create_dir(dev_name(dev->dev), NULL);
+	dev->dfs_root = debugfs_create_dir(dev_name(dev->dev), usb_debug_root);
 	debugfs_create_file(name, 0444, dev->dfs_root, dev, &gr_dfs_fops);
 }
 

This breaks the build:
drivers/usb/gadget/udc/gr_udc.c: In function ‘gr_dfs_create’:
drivers/usb/gadget/udc/gr_udc.c:211:57: error: ‘usb_debug_root’ undeclared (first use in this function)
  211 |  dev->dfs_root = debugfs_create_dir(dev_name(dev->dev), usb_debug_root);
      |                                                         ^~~~~~~~~~~~~~
drivers/usb/gadget/udc/gr_udc.c:211:57: note: each undeclared identifier is reported only once for each function it appears in
make[4]: *** [scripts/Makefile.build:265: drivers/usb/gadget/udc/gr_udc.o] Error 1

so I've dropped it from the patch series.

Please fix up and resend.

Ok

And of course, always test-build your patches before you send them
out...

Sorry, will do it

greg k-h