linux-kernel - Re: [PATCH 2/6] drivers: perf: hisi: Add support for HiSilicon SoC uncore PMU driver

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Date:   Wed, 28 Jun 2017 13:50:28 +0800
From:   Zhangshaokun <zhangshaokun@...ilicon.com>
To:     kbuild test robot <lkp@...el.com>
CC:     <mark.rutland@....com>, <linux-doc@...r.kernel.org>,
        <will.deacon@....com>, <linux-kernel@...r.kernel.org>,
        <linuxarm@...wei.com>, <kbuild-all@...org>,
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/6] drivers: perf: hisi: Add support for HiSilicon SoC
 uncore PMU driver

Hi,

On 2017/6/28 9:49, kbuild test robot wrote:
> Hi Shaokun,
> 
> [auto build test ERROR on next-20170619]
> [also build test ERROR on v4.12-rc7]
> [cannot apply to linus/master linux/master arm64/for-next/core v4.12-rc6 v4.12-rc5 v4.12-rc4]
> [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
> 
> url:    https://github.com/0day-ci/linux/commits/Shaokun-Zhang/Add-HiSilicon-SoC-uncore-Performance-Monitoring-Unit-driver/20170628-070841
> config: x86_64-allmodconfig (attached as .config)
> compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
> reproduce:
>         # save the attached .config to linux build tree
>         make ARCH=x86_64 
> 
> All errors (new ones prefixed by >>):
> 
>    drivers/perf/hisilicon/hisi_uncore_pmu.c: In function 'hisi_read_scl_and_ccl_id':
>>> drivers/perf/hisilicon/hisi_uncore_pmu.c:72:10: error: implicit declaration of function 'read_cpuid_mpidr' [-Werror=implicit-function-declaration]
>      mpidr = read_cpuid_mpidr();
>              ^~~~~~~~~~~~~~~~
>>> drivers/perf/hisilicon/hisi_uncore_pmu.c:73:14: error: 'MPIDR_MT_BITMASK' undeclared (first use in this function)
>      if (mpidr & MPIDR_MT_BITMASK) {
>                  ^~~~~~~~~~~~~~~~
>    drivers/perf/hisilicon/hisi_uncore_pmu.c:73:14: note: each undeclared identifier is reported only once for each function it appears in
>>> drivers/perf/hisilicon/hisi_uncore_pmu.c:75:14: error: implicit declaration of function 'MPIDR_AFFINITY_LEVEL' [-Werror=implicit-function-declaration]
>        *scl_id = MPIDR_AFFINITY_LEVEL(mpidr, 3);
>                  ^~~~~~~~~~~~~~~~~~~~
>    cc1: some warnings being treated as errors
> 

Apologies for my modified drivers/perf/Kconfig for HISI_PMU.
It depends on ARM64 and i shall remove COMPILE_TEST to fix it.

Thanks.
Shaokun

> vim +/read_cpuid_mpidr +72 drivers/perf/hisilicon/hisi_uncore_pmu.c
> 
>     66	
>     67	/* Read Super CPU cluster and CPU cluster ID from MPIDR_EL1 */
>     68	void hisi_read_scl_and_ccl_id(u32 *scl_id, u32 *ccl_id)
>     69	{
>     70		u64 mpidr;
>     71	
>   > 72		mpidr = read_cpuid_mpidr();
>   > 73		if (mpidr & MPIDR_MT_BITMASK) {
>     74			if (scl_id)
>   > 75				*scl_id = MPIDR_AFFINITY_LEVEL(mpidr, 3);
>     76			if (ccl_id)
>     77				*ccl_id = MPIDR_AFFINITY_LEVEL(mpidr, 2);
>     78		} else {
> 
> ---
> 0-DAY kernel test infrastructure                Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
> 
> 
> 
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