> -----Original Message-----
> From: Vivi, Rodrigo
> Sent: Thursday, September 21, 2017 7:54 AM
> To: Sripada, Radhakrishna <[email protected]>
> Cc: [email protected]; Pandiyan, Dhinakaran
> <[email protected]>
> Subject: Re: [igt] igt/kms_psr_sink_crc: Fix regression in psr_drrs subtest
> 
> On Thu, Sep 21, 2017 at 01:37:31AM +0000, Radhakrishna Sripada wrote:
> > The substring to be matched is modified to reflect kernel code.
> 
> Well, technically it is not a regression on psr_drrs because it has this bug 
> since
> the beginning ;)
> 
> Also this commit message doesn't explain the false positive case that DK
> pointed out.
> 
> Also this doesn't explain that is safe to use the reverse logic of !yes 
> because
> DRRS is only enabled for eDP. Otherwise we would have to parse specifically
> the eDP block.
> 
I will update the commit message in the next version of the patch.
> What brings me the question of why do we list all that useless information on
> debugfs? :)
I will send in a cleanup patch of the debugfs output.

-Radhakrishna
> 
> >
> > Fixes: 33355210a43e (igt/kms_psr_sink_crc: Add psr_drrs subtest)
> > Cc: Rodrigo Vivi <[email protected]>
> > Cc: Dhinakaran Pandiyan <[email protected]>
> > Signed-off-by: Radhakrishna Sripada <[email protected]>
> 
> Please also CC other folks that are currently working on DRRS..
> 
> > ---
> >  tests/kms_psr_sink_crc.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/tests/kms_psr_sink_crc.c b/tests/kms_psr_sink_crc.c index
> > 1c25f2c81a34..f023b12c0131 100644
> > --- a/tests/kms_psr_sink_crc.c
> > +++ b/tests/kms_psr_sink_crc.c
> > @@ -290,7 +290,7 @@ static bool drrs_disabled(data_t *data)
> >
> >     igt_debugfs_read(data->drm_fd, "i915_drrs_status", buf);
> >
> > -   return strstr(buf, "DRRS Support: No\n");
> > +   return !strstr(buf, "DRRS Supported: Yes\n");
> >  }
> >
> >  static void run_test(data_t *data)
> > --
> > 2.9.3
> >
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