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Subject: Re: linux-next: build failure after merge of the arm64 tree
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To:     Stephen Rothwell <sfr@canb.auug.org.au>,
        Catalin Marinas <catalin.marinas@arm.com>,
        Will Deacon <will@kernel.org>
CC:     Chris Healy <healych@amazon.com>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>
References: <20221122104136.601ba45e@canb.auug.org.au>
From:   Jiucheng Xu <jiucheng.xu@amlogic.com>
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Hi Stephen,

Could you please share your compiler information, commit id and other

environments info for me to reproduce the building error?

Thanks,

Jiucheng

On 2022/11/22 7:41, Stephen Rothwell wrote:
> Hi all,
>
> After merging the arm64 tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
>
> drivers/perf/amlogic/meson_g12_ddr_pmu.c: In function 'dmc_g12_get_freq_quick':
> drivers/perf/amlogic/meson_g12_ddr_pmu.c:135:15: error: implicit declaration of function 'readl' [-Werror=implicit-function-declaration]
>    135 |         val = readl(info->pll_reg);
>        |               ^~~~~
> drivers/perf/amlogic/meson_g12_ddr_pmu.c: In function 'dmc_g12_counter_enable':
> drivers/perf/amlogic/meson_g12_ddr_pmu.c:204:9: error: implicit declaration of function 'writel' [-Werror=implicit-function-declaration]
>    204 |         writel(clock_count, info->ddr_reg[0] + DMC_MON_G12_TIMER);
>        |         ^~~~~~
>
> Caused by commit
>
>    2016e2113d35 ("perf/amlogic: Add support for Amlogic meson G12 SoC DDR PMU driver")
>
> I have used the arm64 tree from next-20221121 for today.
>
-- 
Thanks,
Jiucheng