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From: Stephan Gerhold <stephan@gerhold.net>
To: Randy Dunlap <rdunlap@infradead.org>
Cc: linux-kernel@vger.kernel.org,
	"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>,
	Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	linux-arm-msm@vger.kernel.org, He Ying <heying24@huawei.com>,
	Arnd Bergmann <arnd@kernel.org>
Subject: Re: [PATCH] cpuidle: ARM_QCOM_SPM_CPUIDLE should depend on HAVE_ARM_SMCCC
Date: Mon, 7 Jun 2021 13:53:23 +0200	[thread overview]
Message-ID: <YL4Is1LNzBuViF3/@gerhold.net> (raw)
In-Reply-To: <20210606190048.689-1-rdunlap@infradead.org>

Hi!

On Sun, Jun 06, 2021 at 12:00:48PM -0700, Randy Dunlap wrote:
> QCOM_SCM depends on HAVE_ARM_SMCCC, so ARM_QCOM_SPM_CPUIDLE should
> also depend on HAVE_ARM_SMCCC since 'select' does not follow any
> dependency chains.
> 
> This fixes a kconfig warning and subsequent build errors:
> 
> WARNING: unmet direct dependencies detected for QCOM_SCM
>   Depends on [n]: (ARM [=y] || ARM64) && HAVE_ARM_SMCCC [=n]
>   Selected by [y]:
>   - ARM_QCOM_SPM_CPUIDLE [=y] && CPU_IDLE [=y] && (ARM [=y] || ARM64) && (ARCH_QCOM [=n] || COMPILE_TEST [=y]) && !ARM64 && MMU [=y]
> 
> arm-linux-gnueabi-ld: drivers/firmware/qcom_scm-smc.o: in function `__scm_smc_do_quirk':
> qcom_scm-smc.c:(.text+0x5c): undefined reference to `__arm_smccc_smc'
> arm-linux-gnueabi-ld: drivers/firmware/qcom_scm-legacy.o: in function `scm_legacy_call':
> qcom_scm-legacy.c:(.text+0x140): undefined reference to `__arm_smccc_smc'
> arm-linux-gnueabi-ld: drivers/firmware/qcom_scm-legacy.o: in function `scm_legacy_call_atomic':
> qcom_scm-legacy.c:(.text+0x364): undefined reference to `__arm_smccc_smc'
> 
> Fixes: a871be6b8eee ("cpuidle: Convert Qualcomm SPM driver to a generic CPUidle driver")
> Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
> Cc: Stephan Gerhold <stephan@gerhold.net>
> Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
> Cc: Andy Gross <agross@kernel.org>
> Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
> Cc: linux-arm-msm@vger.kernel.org
> Cc: He Ying <heying24@huawei.com>

There was a similar patch from Arnd a while ago (which fixes another
warning for ARM_CPU_SUSPEND?):

https://lore.kernel.org/linux-pm/20210421135723.3601743-1-arnd@kernel.org/

I'm not sure who is supposed to pick it up. :)

Thanks!
Stephan

> ---
>  drivers/cpuidle/Kconfig.arm |    1 +
>  1 file changed, 1 insertion(+)
> 
> --- linux-next-20210604.orig/drivers/cpuidle/Kconfig.arm
> +++ linux-next-20210604/drivers/cpuidle/Kconfig.arm
> @@ -108,6 +108,7 @@ config ARM_TEGRA_CPUIDLE
>  config ARM_QCOM_SPM_CPUIDLE
>  	bool "CPU Idle Driver for Qualcomm Subsystem Power Manager (SPM)"
>  	depends on (ARCH_QCOM || COMPILE_TEST) && !ARM64 && MMU
> +	depends on HAVE_ARM_SMCCC
>  	select ARM_CPU_SUSPEND
>  	select CPU_IDLE_MULTIPLE_DRIVERS
>  	select DT_IDLE_STATES

  reply	other threads:[~2021-06-07 11:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-06 19:00 [PATCH] cpuidle: ARM_QCOM_SPM_CPUIDLE should depend on HAVE_ARM_SMCCC Randy Dunlap
2021-06-07 11:53 ` Stephan Gerhold [this message]
2021-06-07 17:30   ` Rafael J. Wysocki

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