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: i386-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=i386 All errors (new ones prefixed by >>): drivers/perf/hisilicon/hisi_uncore_hha_pmu.c: In function 'hisi_hha_pmu_read_counter': >> drivers/perf/hisilicon/hisi_uncore_hha_pmu.c:71:9: error: implicit declaration of function 'readq' [-Werror=implicit-function-declaration] return readq(hha_pmu->base + reg); ^~~~~ drivers/perf/hisilicon/hisi_uncore_hha_pmu.c: In function 'hisi_hha_pmu_write_counter': >> drivers/perf/hisilicon/hisi_uncore_hha_pmu.c:87:2: error: implicit declaration of function 'writeq' [-Werror=implicit-function-declaration] writeq(val, hha_pmu->base + reg); ^~~~~~ cc1: some warnings being treated as errors coccinelle warnings: (new ones prefixed by >>) >> drivers/perf/hisilicon/hisi_uncore_hha_pmu.c:272:1-3: WARNING: PTR_ERR_OR_ZERO can be used Please review and possibly fold the followup patch. vim +/readq +71 drivers/perf/hisilicon/hisi_uncore_hha_pmu.c 65 return 0; 66 } 67 68 reg = get_counter_reg_off(idx); 69 70 /* Read 64 bits and like L3C, top 16 bits are RAZ */ > 71 return readq(hha_pmu->base + reg); 72 } 73 74 static void hisi_hha_pmu_write_counter(struct hisi_pmu *hha_pmu, 75 struct hw_perf_event *hwc, u64 val) 76 { 77 u32 idx = hwc->idx; 78 u32 reg; 79 80 if (!hisi_uncore_pmu_counter_valid(hha_pmu, idx)) { 81 dev_err(hha_pmu->dev, "Unsupported event index:%d!\n", idx); 82 return; 83 } 84 85 reg = get_counter_reg_off(idx); 86 /* Write 64 bits and like L3C, top 16 bits are WI */ > 87 writeq(val, hha_pmu->base + reg); 88 } 89 90 static void hisi_hha_pmu_write_evtype(struct hisi_pmu *hha_pmu, int idx, --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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