[v2] timers: Fix excessive granularity of new timers after a nohz idle

[Thierry Reding]

On Wed, Aug 23, 2017 at 04:38:14PM +0800, jeffy wrote:
> Hi Thierry,
> 
> i hit a compile error with this patch:
> 
>   CC      drivers/gpu/drm/tegra/trace.o
> In file included from drivers/gpu/drm/tegra/trace.h:68:0,
>                  from drivers/gpu/drm/tegra/trace.c:2:
> ./include/trace/define_trace.h:88:43: fatal error: ./trace.h: No such file
> or directory
> compilation terminated.
> scripts/Makefile.build:311: recipe for target
> 'drivers/gpu/drm/tegra/trace.o' failed
> 
> 
> On 08/22/2017 04:43 PM, Nicholas Piggin wrote:
> > +++ b/drivers/gpu/drm/tegra/Makefile
> > @@ -24,4 +24,6 @@ tegra-drm-$(CONFIG_ARCH_TEGRA_186_SOC) += \
> >   	parker/dsi.o \
> >   	parker/sor.o
> > 
> > +tegra-drm-y += trace.o
> > +
> 
> maybe we need this:
> 
> +++ b/drivers/gpu/drm/tegra/Makefile
> @@ -19,4 +19,6 @@ tegra-drm-y := \
> 
>  tegra-drm-y += trace.o
> 
> +CFLAGS_trace.o := -I$(src)
> +
>  obj-$(CONFIG_DRM_TEGRA) += tegra-drm.o

Dmitry had also reported this earlier and I think the right fix is this,
which is now in today's linux-next:

commit 702800b5d6f45b18db6b6d6b1057af6fd1c75e20
Author: Thierry Reding <treding at nvidia.com>
Date:   Wed Aug 23 19:13:26 2017 +0200

    drm/tegra: trace: Fix path to include

    The TRACE_INCLUDE_FILE macro needs to specify the path relative to the
    define_trace.h header rather than relative to the file defining it.

    Reported-by: Dmitry Osipenko <digetx at gmail.com>
    Tested-by: Dmitry Osipenko <digetx at gmail.com>
    Signed-off-by: Thierry Reding <treding at nvidia.com>
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