From: kbuild test robot <lkp@intel.com>
To: kan.liang@intel.com
Cc: kbuild-all@01.org, peterz@infradead.org, acme@kernel.org,
eranian@google.com, ak@linux.intel.com, jolsa@kernel.org,
namhyung@kernel.org, linux-kernel@vger.kernel.org,
Kan Liang <kan.liang@intel.com>
Subject: Re: [PATCH V2 1/8] perf: Add PERF_SAMPLE_PHYS_ADDR
Date: Fri, 8 Jan 2016 05:08:46 +0800 [thread overview]
Message-ID: <201601080500.jMVeybPa%fengguang.wu@intel.com> (raw)
In-Reply-To: <1452173440-10697-1-git-send-email-kan.liang@intel.com>
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Hi Kan,
[auto build test WARNING on tip/perf/core]
[also build test WARNING on v4.4-rc8 next-20160107]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]
url: https://github.com/0day-ci/linux/commits/kan-liang-intel-com/perf-Add-PERF_SAMPLE_PHYS_ADDR/20160108-045715
config: i386-tinyconfig (attached as .config)
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All warnings (new ones prefixed by >>):
arch/x86/kernel/cpu/perf_event_intel_ds.c: In function 'setup_pebs_sample_data':
>> arch/x86/kernel/cpu/perf_event_intel_ds.c:1087:41: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
data->phys_addr = (u64)virt_to_phys((void *)data->addr);
^
vim +1087 arch/x86/kernel/cpu/perf_event_intel_ds.c
1071 regs->ip = pebs->real_ip;
1072 regs->flags |= PERF_EFLAGS_EXACT;
1073 } else if (event->attr.precise_ip > 1 && intel_pmu_pebs_fixup_ip(regs))
1074 regs->flags |= PERF_EFLAGS_EXACT;
1075 else
1076 regs->flags &= ~PERF_EFLAGS_EXACT;
1077
1078 if ((sample_type & PERF_SAMPLE_ADDR) &&
1079 x86_pmu.intel_cap.pebs_format >= 1)
1080 data->addr = pebs->dla;
1081
1082 if ((sample_type & PERF_SAMPLE_PHYS_ADDR) && (data->addr != 0)) {
1083 if (data->addr >= TASK_SIZE) {
1084 /* If it's vmalloc()d memory, leave phys_addr as 0 */
1085 if (virt_addr_valid(data->addr) &&
1086 !(data->addr >= VMALLOC_START && data->addr < VMALLOC_END))
> 1087 data->phys_addr = (u64)virt_to_phys((void *)data->addr);
1088 } else {
1089 /*
1090 * Walking the pages tables for user address.
1091 * Interrupts are disabled, so it prevents any tear down
1092 * of the page tables.
1093 * Try IRQ-safe __get_user_pages_fast first.
1094 * If failed, leave phys_addr as 0.
1095 */
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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next prev parent reply other threads:[~2016-01-07 21:09 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-07 13:30 kan.liang
2016-01-07 13:30 ` [PATCH V2 2/8] perf tools: add option to record sample physical address kan.liang
2016-01-07 13:30 ` [PATCH V2 3/8] perf tools: add sort option phys_daddr kan.liang
2016-01-07 13:30 ` [PATCH V2 4/8] perf mem: add option phys-data to record physical address kan.liang
2016-01-07 13:30 ` [PATCH V2 5/8] perf mem: report physical addresses kan.liang
2016-01-07 13:30 ` [PATCH V2 6/8] perf mem: dump " kan.liang
2016-01-07 13:30 ` [PATCH V2 7/8] perf script: support physical addresses in script kan.liang
2016-01-07 13:30 ` [PATCH V2 8/8] perf test: add test case for PERF_SAMPLE_PHYS_ADDR kan.liang
2016-01-07 21:08 ` kbuild test robot [this message]
2016-01-07 21:22 ` [PATCH V2 1/8] perf: Add PERF_SAMPLE_PHYS_ADDR kbuild test robot
2016-01-19 16:30 ` Peter Zijlstra
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