linux-kernel - Re: linux-next: build failure after merge of the wireless-drivers-next tree

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Date:   Tue, 08 Dec 2020 10:54:05 +0200
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Stephen Rothwell <sfr@...b.auug.org.au>
Cc:     Wireless <linux-wireless@...r.kernel.org>,
        Lee Jones <lee.jones@...aro.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the wireless-drivers-next tree

Stephen Rothwell <sfr@...b.auug.org.au> writes:

> After merging the wireless-drivers-next tree, today's linux-next build
> (powerpc allyesconfig) failed like this:
>
> ld: drivers/net/wireless/realtek/rtw88/rtw8822ce.o:(.rodata.rtw_pm_ops+0x0): multiple definition of `rtw_pm_ops'; drivers/net/wireless/realtek/rtw88/rtw8822be.o:(.rodata.rtw_pm_ops+0x0): first defined here
> ld: drivers/net/wireless/realtek/rtw88/rtw8723de.o:(.rodata.rtw_pm_ops+0x0): multiple definition of `rtw_pm_ops'; drivers/net/wireless/realtek/rtw88/rtw8822be.o:(.rodata.rtw_pm_ops+0x0): first defined here
> ld: drivers/net/wireless/realtek/rtw88/rtw8821ce.o:(.rodata.rtw_pm_ops+0x0): multiple definition of `rtw_pm_ops'; drivers/net/wireless/realtek/rtw88/rtw8822be.o:(.rodata.rtw_pm_ops+0x0): first defined here
> ld: drivers/net/wireless/realtek/rtw88/pci.o:(.rodata.rtw_pm_ops+0x0): multiple definition of `rtw_pm_ops'; drivers/net/wireless/realtek/rtw88/rtw8822be.o:(.rodata.rtw_pm_ops+0x0): first defined here
>
> Caused by commit
>
>   2e86ef413ab3 ("rtw88: pci: Add prototypes for .probe, .remove and .shutdown")
>
> I have applied the following patch:
>
> From: Stephen Rothwell <sfr@...b.auug.org.au>
> Date: Tue, 8 Dec 2020 19:35:18 +1100
> Subject: [PATCH] rtw88: pci: "extern" is necessary for header declarations of data
>
> Fixes: 2e86ef413ab3 ("rtw88: pci: Add prototypes for .probe, .remove and .shutdown")
> Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
> ---
>  drivers/net/wireless/realtek/rtw88/pci.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/realtek/rtw88/pci.h b/drivers/net/wireless/realtek/rtw88/pci.h
> index cda56919a5f0..7cdefe229824 100644
> --- a/drivers/net/wireless/realtek/rtw88/pci.h
> +++ b/drivers/net/wireless/realtek/rtw88/pci.h
> @@ -214,7 +214,7 @@ struct rtw_pci {
>  	void __iomem *mmap;
>  };
>  
> -const struct dev_pm_ops rtw_pm_ops;
> +extern const struct dev_pm_ops rtw_pm_ops;

Thanks, just an hour ago I applied an identical patch from Ping:

https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next.git/commit/?id=91aeaf09a6eed83cae0d0fad20a97699b1c8b812

-- 
https://patchwork.kernel.org/project/linux-wireless/list/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches