linux-kernel - Re: [PATCH] csky: change a Kconfig symbol name to fix e1000 build error

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Date:   Sun, 31 Jan 2021 10:08:34 +0800
From:   Guo Ren <guoren@...nel.org>
To:     Randy Dunlap <rdunlap@...radead.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        kernel test robot <lkp@...el.com>,
        Jesse Brandeburg <jesse.brandeburg@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        intel-wired-lan@...ts.osuosl.org,
        Guo Ren <guoren@...ux.alibaba.com>, linux-csky@...r.kernel.org
Subject: Re: [PATCH] csky: change a Kconfig symbol name to fix e1000 build error

Acked-by

Thx

On Sun, Jan 31, 2021 at 7:50 AM Randy Dunlap <rdunlap@...radead.org> wrote:
>
> e1000's #define of CONFIG_RAM_BASE conflicts with a Kconfig symbol in
> arch/csky/Kconfig.
> The symbol in e1000 has been around longer, so change arch/csky/
> to use DRAM_BASE instead of RAM_BASE to remove the conflict.
> (although e1000 is also a 2-line change)
>
> Not tested: I don't have a build toolchain for CSKY.
>
> Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
> Reported-by: kernel test robot <lkp@...el.com>
> Cc: Jesse Brandeburg <jesse.brandeburg@...el.com>
> Cc: Tony Nguyen <anthony.l.nguyen@...el.com>
> Cc: intel-wired-lan@...ts.osuosl.org
> Cc: Guo Ren <guoren@...ux.alibaba.com>
> Cc: Guo Ren <guoren@...nel.org>
> Cc: linux-csky@...r.kernel.org
> ---
> IMO "CONFIG_" namespace should belong to Kconfig files, not
> individual drivers, but e1000 isn't the only driver that uses
> CONFIG_ symbols.
>
>  arch/csky/Kconfig            |    2 +-
>  arch/csky/include/asm/page.h |    2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> --- linux-next-20210129.orig/arch/csky/include/asm/page.h
> +++ linux-next-20210129/arch/csky/include/asm/page.h
> @@ -28,7 +28,7 @@
>  #define SSEG_SIZE      0x20000000
>  #define LOWMEM_LIMIT   (SSEG_SIZE * 2)
>
> -#define PHYS_OFFSET_OFFSET (CONFIG_RAM_BASE & (SSEG_SIZE - 1))
> +#define PHYS_OFFSET_OFFSET (CONFIG_DRAM_BASE & (SSEG_SIZE - 1))
>
>  #ifndef __ASSEMBLY__
>
> --- linux-next-20210129.orig/arch/csky/Kconfig
> +++ linux-next-20210129/arch/csky/Kconfig
> @@ -314,7 +314,7 @@ config FORCE_MAX_ZONEORDER
>         int "Maximum zone order"
>         default "11"
>
> -config RAM_BASE
> +config DRAM_BASE
>         hex "DRAM start addr (the same with memory-section in dts)"
>         default 0x0
>


-- 
Best Regards
 Guo Ren

ML: https://lore.kernel.org/linux-csky/