linux-kernel - Re: [PATCH] net/9p/usbg: Fix build error

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Message-ID: <2024100910-distrust-cornhusk-a8bd@gregkh>
Date: Wed, 9 Oct 2024 09:55:30 +0200
From: Greg KH <gregkh@...uxfoundation.org>
To: Jinjie Ruan <ruanjinjie@...wei.com>
Cc: ericvh@...nel.org, lucho@...kov.net, asmadeus@...ewreck.org,
	linux_oss@...debyte.com, paul.walmsley@...ive.com,
	palmer@...belt.com, aou@...s.berkeley.edu,
	m.grzeschik@...gutronix.de, v9fs@...ts.linux.dev,
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH] net/9p/usbg: Fix build error

On Wed, Oct 09, 2024 at 03:49:22PM +0800, Jinjie Ruan wrote:
> Ping.
> 
> On 2024/9/30 16:15, Jinjie Ruan wrote:
> > When CONFIG_NET_9P_USBG=y but CONFIG_USB_LIBCOMPOSITE=m and
> > CONFIG_CONFIGFS_FS=m, the following build error occurs:
> > 
> > 	riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_free_func':
> > 	trans_usbg.c:(.text+0x124): undefined reference to `usb_free_all_descriptors'
> > 	riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_rx_complete':
> > 	trans_usbg.c:(.text+0x2d8): undefined reference to `usb_interface_id'
> > 	riscv64-unknown-linux-gnu-ld: trans_usbg.c:(.text+0x2f6): undefined reference to `usb_string_id'
> > 	riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_func_bind':
> > 	trans_usbg.c:(.text+0x31c): undefined reference to `usb_ep_autoconfig'
> > 	riscv64-unknown-linux-gnu-ld: trans_usbg.c:(.text+0x336): undefined reference to `usb_ep_autoconfig'
> > 	riscv64-unknown-linux-gnu-ld: trans_usbg.c:(.text+0x378): undefined reference to `usb_assign_descriptors'
> > 	riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `f_usb9pfs_opts_buflen_store':
> > 	trans_usbg.c:(.text+0x49e): undefined reference to `usb_put_function_instance'
> > 	riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_alloc_instance':
> > 	trans_usbg.c:(.text+0x5fe): undefined reference to `config_group_init_type_name'
> > 	riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_alloc':
> > 	trans_usbg.c:(.text+0x7aa): undefined reference to `config_ep_by_speed'
> > 	riscv64-unknown-linux-gnu-ld: trans_usbg.c:(.text+0x7ea): undefined reference to `config_ep_by_speed'
> > 	riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_set_alt':
> > 	trans_usbg.c:(.text+0x828): undefined reference to `alloc_ep_req'
> > 	riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_modexit':
> > 	trans_usbg.c:(.exit.text+0x10): undefined reference to `usb_function_unregister'
> > 	riscv64-unknown-linux-gnu-ld: net/9p/trans_usbg.o: in function `usb9pfs_modinit':
> > 	trans_usbg.c:(.init.text+0x1e): undefined reference to `usb_function_register'
> > 
> > Select the config for NET_9P_USBG to fix it.
> > 
> > Fixes: a3be076dc174 ("net/9p/usbg: Add new usb gadget function transport")
> > Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
> > ---
> >  net/9p/Kconfig | 2 ++
> >  1 file changed, 2 insertions(+)
> > 
> > diff --git a/net/9p/Kconfig b/net/9p/Kconfig
> > index 63f988f0c9e8..ee967fd25312 100644
> > --- a/net/9p/Kconfig
> > +++ b/net/9p/Kconfig
> > @@ -43,6 +43,8 @@ config NET_9P_XEN
> >  config NET_9P_USBG
> >  	bool "9P USB Gadget Transport"
> >  	depends on USB_GADGET=y || USB_GADGET=NET_9P
> > +	select CONFIGFS_FS
> > +	select USB_LIBCOMPOSITE
> >  	help
> >  	  This builds support for a transport for 9pfs over
> >  	  usb gadget.

Ah, I can take this through the USB tree as it fixes a bug that came in
through there.

thanks,

greg k-h