linux-kernel - Re: [PATCH] soc/tegra: pmc: Drop SMP dependency from CPU APIs

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Date:   Thu, 13 Dec 2018 02:09:01 -0800
From:   Stephen Boyd <sboyd@...nel.org>
To:     Arnd Bergmann <arnd@...db.de>, Jon Hunter <jonathanh@...dia.com>,
        Thierry Reding <thierry.reding@...il.com>
Cc:     linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jon Hunter <jonathanh@...dia.com>
Subject: Re: [PATCH] soc/tegra: pmc: Drop SMP dependency from CPU APIs

Quoting Jon Hunter (2018-12-13 01:46:14)
> When CONFIG_SMP is disabled, the tegra clk driver now fails to build:
> 
> drivers/clk/tegra/clk-tegra30.c: In function ‘tegra30_cpu_rail_off_ready’:
> drivers/clk/tegra/clk-tegra30.c:1151:2: error: implicit declaration of function ‘tegra_pmc_cpu_is_powered’ [-Werror=implicit-function-declaration]
>   cpu_pwr_status = tegra_pmc_cpu_is_powered(1) ||
>     ^
> Fix the above error by removing the CONFIG_SMP ifdef around the
> declaration around the PMC CPU APIs because although these are not
> needed for non-SMP configurations, there is no harm in including these
> for non-SMP builds either.
> 
> Fixes: 61866523ed6e ("clk: tegra30: Use Tegra CPU powergate helper function")
> Reported-by: Arnd Bergmann <arnd@...db.de>
> Signed-off-by: Jon Hunter <jonathanh@...dia.com>

Can I pick this into clk tree? That would make the compilation bisection
hole very small. I could even reorder the clk-tegra branch to have this
before the user so the bisection hole doesn't exist.