linux-kernel - Re: [PATCH] char: Drop bogus dependency of DEVPORT on !M68K

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Date:	Wed, 20 Apr 2016 13:43:10 -0600
From:	Al Stone <ahs3@...hat.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	Geoff Levand <geoff@...radead.org>, linux-kernel@...r.kernel.org,
	linux-m68k@...r.kernel.org
Subject: Re: [PATCH] char: Drop bogus dependency of DEVPORT on !M68K

On 04/11/2016 02:40 AM, Geert Uytterhoeven wrote:
> According to full-history-linux commit d3794f4fa7c3edc3 ("[PATCH] M68k
> update (part 25)"), port operations are allowed on m68k if CONFIG_ISA is
> defined.
> 
> However, commit 153dcc54df826d2f ("[PATCH] mem driver: fix conditional
> on isa i/o support") accidentally changed an "||" into an "&&",
> disabling it completely on m68k. This logic was retained when
> introducing the DEVPORT symbol in commit 4f911d64e04a44c4 ("Make
> /dev/port conditional on config symbol").
> 
> Drop the bogus dependency on !M68K to fix this.
> 
> Fixes: 153dcc54df826d2f ("[PATCH] mem driver: fix conditional on isa i/o support")
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> ---
>  drivers/char/Kconfig | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
> index d3b8ddc6241cac2d..fa56bc757fe98fd1 100644
> --- a/drivers/char/Kconfig
> +++ b/drivers/char/Kconfig
> @@ -585,7 +585,6 @@ config TELCLOCK
>  
>  config DEVPORT
>  	bool
> -	depends on !M68K
>  	depends on ISA || PCI
>  	default y
>  
> 

This solves the particular problem I was running into on an arm64 AMD Seattle
system.  Thanks!

Tested-by: Al Stone <ahs3@...hat.com>

-- 
ciao,
al
-----------------------------------
Al Stone
Software Engineer
Red Hat, Inc.
ahs3@...hat.com
-----------------------------------