linux-kernel - Re: [PATCH 2/2] ARM: npcm: drop extraneous 'select' statements

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Date:   Thu, 8 Mar 2018 12:42:12 +1030
From:   Joel Stanley <joel@....id.au>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Avi Fishman <avifishman70@...il.com>,
        Tomer Maimon <tmaimon77@...il.com>,
        Patrick Venture <venture@...gle.com>,
        Nancy Yuen <yuenn@...gle.com>,
        Brendan Higgins <brendanhiggins@...gle.com>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        OpenBMC Maillist <openbmc@...ts.ozlabs.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2] ARM: npcm: drop extraneous 'select' statements

On Thu, Mar 8, 2018 at 2:54 AM, Arnd Bergmann <arnd@...db.de> wrote:
> While looking at the build regression, I noticed that the
> platform selects a lot of other Kconfig symbols that it really
> should not:
>
> CPU_V7, ARM_GIC, HAVE_SMP, COMMON_CLK, GENERIC_CLOCKEVENTS,
> and CLKDEV_LOOKUP are all implied by ARCH_MULTI_V7, so they
> can be dropped.
>
> CACHE_L2X0, SMP and USB are meant to be user-selectable, we
> want to be able to turn those off for testing purposes.
>
> CPU_USE_DOMAINS looks completely misplaced here, we should not
> select that for an ARMv7 platform.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

I had a similar patch queued for sending out. Thanks Arnd.

Acked-by: Joel Stanley <joel@....id.au>

Cheers,

Joel

> ---
>  arch/arm/mach-npcm/Kconfig | 18 ------------------
>  1 file changed, 18 deletions(-)
>
> diff --git a/arch/arm/mach-npcm/Kconfig b/arch/arm/mach-npcm/Kconfig
> index 2bc6697c8d97..c6a16230e8ef 100644
> --- a/arch/arm/mach-npcm/Kconfig
> +++ b/arch/arm/mach-npcm/Kconfig
> @@ -12,12 +12,6 @@ comment "NPCM7XX CPU type"
>  config ARCH_NPCM750
>         depends on ARCH_NPCM
>         bool "Support for NPCM750 BMC CPU (Poleg)"
> -       select CACHE_L2X0
> -       select CPU_V7
> -       select ARM_GIC
> -       select HAVE_SMP
> -       select SMP
> -       select SMP_ON_UP
>         select HAVE_ARM_SCU
>         select HAVE_ARM_TWD if SMP
>         select ARM_ERRATA_720789
> @@ -26,18 +20,6 @@ config ARCH_NPCM750
>         select ARM_ERRATA_794072
>         select PL310_ERRATA_588369
>         select PL310_ERRATA_727915
> -       select USB_EHCI_ROOT_HUB_TT
> -       select USB_ARCH_HAS_HCD
> -       select USB_ARCH_HAS_EHCI
> -       select USB_EHCI_HCD
> -       select USB_ARCH_HAS_OHCI
> -       select USB_OHCI_HCD
> -       select USB
> -       select FIQ
> -       select CPU_USE_DOMAINS
> -       select GENERIC_CLOCKEVENTS
> -       select CLKDEV_LOOKUP
> -       select COMMON_CLK if OF
>         select NPCM750_TIMER
>         select MFD_SYSCON
>         help
> --
> 2.9.0
>