Re: [PATCH 2/2] trace: Add an option for boot clock as trace clock

From: Joel Fernandes
Date: Mon Nov 21 2016 - 17:59:51 EST


On Mon, Nov 21, 2016 at 2:48 PM, kbuild test robot <lkp@xxxxxxxxx> wrote:
> Hi Joel,
>
> [auto build test ERROR on tip/timers/core]
> [also build test ERROR on v4.9-rc6 next-20161117]
> [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/Joel-Fernandes/timekeeping-Introduce-a-fast-boot-clock-derived-from-fast-monotonic-clock/20161122-063314
> config: i386-randconfig-x004-201647 (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 >>):
>
>>> kernel/trace/trace.c:1128:4: error: 'ktime_get_boot_fast_ns' undeclared here (not in a function)
> { ktime_get_boot_fast_ns, "boot", 1 },


Looks like I didn't have enough coffee today. I did test the patches
so this is rather strange, I must have missed the header export while
respinning from another tree. I will fix this, respin and post another
version later while waiting meanwhile for any other comments (and
addressing Steven's documentation comment).

Thanks,
Joel


> ^~~~~~~~~~~~~~~~~~~~~~
>
> vim +/ktime_get_boot_fast_ns +1128 kernel/trace/trace.c
>
> 1122 { trace_clock_global, "global", 1 },
> 1123 { trace_clock_counter, "counter", 0 },
> 1124 { trace_clock_jiffies, "uptime", 0 },
> 1125 { trace_clock, "perf", 1 },
> 1126 { ktime_get_mono_fast_ns, "mono", 1 },
> 1127 { ktime_get_raw_fast_ns, "mono_raw", 1 },
>> 1128 { ktime_get_boot_fast_ns, "boot", 1 },
> 1129 ARCH_TRACE_CLOCKS
> 1130 };
> 1131
>
> ---
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