linux-kernel - Re: [PATCH v1] pinctrl: aspeed: fix unmet dependencies on MFD_SYSCON for PINCTRL

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Date:   Thu, 16 Dec 2021 08:28:21 +1030
From:   "Andrew Jeffery" <andrew@...id.au>
To:     "Julian Braha" <julianbraha@...il.com>,
        "Linus Walleij" <linus.walleij@...aro.org>,
        "Joel Stanley" <joel@....id.au>
Cc:     linux-aspeed@...ts.ozlabs.org, linux-gpio@...r.kernel.org,
        openbmc@...ts.ozlabs.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, fazilyildiran@...il.com
Subject: Re: [PATCH v1] pinctrl: aspeed: fix unmet dependencies on MFD_SYSCON for
 PINCTRL_ASPEED



On Thu, 16 Dec 2021, at 08:10, Julian Braha wrote:
> When PINCTRL_ASPEED_G* is selected,
> and MFD_SYSCON is not selected,
> Kbuild gives the following warnings:
>
> WARNING: unmet direct dependencies detected for PINCTRL_ASPEED
>   Depends on [n]: PINCTRL [=y] && (ARCH_ASPEED [=n] || COMPILE_TEST 
> [=y]) && OF [=y] && MFD_SYSCON [=n]
>   Selected by [y]:
>   - PINCTRL_ASPEED_G4 [=y] && PINCTRL [=y] && (MACH_ASPEED_G4 [=n] || 
> COMPILE_TEST [=y]) && OF [=y]
>
> WARNING: unmet direct dependencies detected for PINCTRL_ASPEED
>   Depends on [n]: PINCTRL [=y] && (ARCH_ASPEED [=n] || COMPILE_TEST 
> [=y]) && OF [=y] && MFD_S>
>   Selected by [y]:
>   - PINCTRL_ASPEED_G5 [=y] && PINCTRL [=y] && (MACH_ASPEED_G5 [=n] || 
> COMPILE_TEST [=y]) && O>
>
> WARNING: unmet direct dependencies detected for PINCTRL_ASPEED
>   Depends on [n]: PINCTRL [=y] && (ARCH_ASPEED [=n] || COMPILE_TEST 
> [=y]) && OF [=y] && MFD_S>
>   Selected by [y]:
>   - PINCTRL_ASPEED_G6 [=y] && PINCTRL [=y] && (MACH_ASPEED_G6 [=n] || 
> COMPILE_TEST [=y]) && O>
>
> This is because MACH_ASPEED_G* depend on (ARCH_ASPEED || COMPILE_TEST).
> ARCH_ASPEED enables the MFD_SYSCON dependency, but COMPILE_TEST doesn't.
>
> These unmet dependency bugs were detected by Kismet,
> a static analysis tool for Kconfig. Please advise
> if this is not the appropriate solution.
>
> Signed-off-by: Julian Braha <julianbraha@...il.com>

Reviewed-by: Andrew Jeffery <andrew@...id.au>

Thanks.