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Date:   Tue, 12 Jan 2021 09:15:32 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Pawel Laszczak <pawell@...ence.com>
Cc:     Peter Chen <peter.chen@....com>,
        Randy Dunlap <rdunlap@...radead.org>, a-govindraju@...com,
        Greg KH <gregkh@...uxfoundation.org>,
        USB list <linux-usb@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        kurahul@...ence.com
Subject: Re: [PATCH] usb: cdnsp: fixes undefined reference to cdns_remove

Hi Pawel,

On Tue, Jan 12, 2021 at 8:17 AM Pawel Laszczak <pawell@...ence.com> wrote:
> Patch fixes the following errors:
> ld: drivers/usb/cdns3/cdnsp-pci.o: in function `cdnsp_pci_remove':
> cdnsp-pci.c:(.text+0x80): undefined reference to `cdns_remove'
> ld: drivers/usb/cdns3/cdnsp-pci.o: in function `cdnsp_pci_probe':
> cdnsp-pci.c:(.text+0x34c): undefined reference to `cdns_init'
>
> Issue occurs for USB/CDNS3/CDNSP kernel configuration:
> CONFIG_USB=m
> CONFIG_USB_CDNS_SUPPORT=y
> CONFIG_USB_CDNS3=m
> CONFIG_USB_CDNS3_PCI_WRAP=m
> CONFIG_USB_CDNSP_PCI=y
>
> Reported-by: Randy Dunlap <rdunlap@...radead.org>
> Signed-off-by: Pawel Laszczak <pawell@...ence.com>

Thanks for your patch!

noreply@...erman.id.au reports for m68k-allmodconfig:

drivers/usb/cdns3/cdnsp-pci.c:92:6: error: implicit declaration of
function 'pci_is_enabled'; did you mean 'pci_acs_enabled'?
[-Werror=implicit-function-declaration]
drivers/usb/cdns3/cdnsp-pci.c:166:6: error: implicit declaration of
function 'pci_dev_run_wake'; did you mean 'pci_enable_wake'?
[-Werror=implicit-function-declaration]
drivers/usb/cdns3/cdnsp-pci.c:248:1: error: type defaults to 'int' in
declaration of 'module_pci_driver' [-Werror=implicit-int]

> --- a/drivers/usb/cdns3/Makefile
> +++ b/drivers/usb/cdns3/Makefile
> @@ -26,7 +26,11 @@ obj-$(CONFIG_USB_CDNS3_TI)                   += cdns3-ti.o
>  obj-$(CONFIG_USB_CDNS3_IMX)                    += cdns3-imx.o
>
>  cdnsp-udc-pci-y                                        := cdnsp-pci.o
> +ifeq ($(CONFIG_USB),m)
> +obj-m                                          += cdnsp-udc-pci.o

This includes cdnsp-udc-pci.o even if CONFIG_USB_CDNSP_PCI=n,
causing the aforementioned build failure.

> +else
>  obj-$(CONFIG_USB_CDNSP_PCI)                    += cdnsp-udc-pci.o
> +endif
>  cdnsp-udc-pci-$(CONFIG_USB_CDNSP_GADGET)       += cdnsp-ring.o cdnsp-gadget.o \
>                                                    cdnsp-mem.o cdnsp-ep0.o
>

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds

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