linux-kernel - Re: [PATCH v2] clk: Provide notifier stubs when !COMMON

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Message-ID: <20160628172653.GB1521@codeaurora.org>
Date:	Tue, 28 Jun 2016 10:26:53 -0700
From:	Stephen Boyd <sboyd@...eaurora.org>
To:	Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc:	Russell King <linux@...linux.org.uk>, linux-clk@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Michael Turquette <mturquette@...libre.com>,
	MyungJoo Ham <myungjoo.ham@...sung.com>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	linux-pm@...r.kernel.org,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Subject: Re: [PATCH v2] clk: Provide notifier stubs when !COMMON_CLK

On 06/28, Krzysztof Kozlowski wrote:
> The clk notifier symbols are hidden by COMMON_CLK.  However on some
> platforms HAVE_CLK might be set while COMMON_CLK not which leads to
> compile test build errors like:
> 
> $ make.cross ARCH=sh
>    drivers/devfreq/tegra-devfreq.c: In function 'tegra_actmon_rate_notify_cb':
> >> drivers/devfreq/tegra-devfreq.c:391:16: error: 'POST_RATE_CHANGE' undeclared (first use in this function)
>      if (action != POST_RATE_CHANGE)
>                    ^
>    drivers/devfreq/tegra-devfreq.c: In function 'tegra_devfreq_probe':
> >> drivers/devfreq/tegra-devfreq.c:654:8: error: implicit declaration of function 'clk_notifier_register' [-Werror=implicit-function-declaration]
>      err = clk_notifier_register(tegra->emc_clock, &tegra->rate_change_nb);
>            ^
> 
> Export the macros and data type declarations outside of COMMON_CLK ifdef
> and provide stubs to fix the compile testing.
> 
> Reported-by: kbuild test robot <lkp@...el.com>
> Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
> 
> ---
> 

Ok. Did you want some stable branch to pull this in and base your
use case on?

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