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From: "Joshi, Kunal1" <kunal1.joshi@intel.com>
To: Sowmiya S <sowmiya.s@intel.com>, igt-dev@lists.freedesktop.org
Cc: karthik.b.s@intel.com
Subject: Re: [PATCH i-g-t v5 2/4] tests/intel/kms_dp_linktrain_fallback: Reset traversed MST output count
Date: Wed, 19 Aug 2026 10:54:32 +0530	[thread overview]
Message-ID: <4bf86a0f-25a2-43d9-89b9-ed737d9b94a8@intel.com> (raw)
In-Reply-To: <20260817082612.1101382-3-sowmiya.s@intel.com>


On 17-08-2026 13:56, Sowmiya S wrote:
> run_lt_fallback_test() tracks which MST outputs it has already
> traversed in a file-static counter that is never cleared. Today it
> has a single caller so the counter is implicitly zero, but a second
> caller would silently inherit the first run's state and skip every
> MST sibling as "already visited".
>
> Reset the counter on entry so the function is safe to call more than
> once per binary. The DSC path never reaches setup_mst_outputs(), so
> run_dsc_sst_fallaback_test() does not need the same treatment.
>
> v4: reworded commit message to explain this is a no-op prep patch
>      until run_lt_fallback_test() gains a second caller (Kunal)
>
> Signed-off-by: Sowmiya S <sowmiya.s@intel.com>
Reviewed-by: Kunal Joshi <kunal1.joshi@intel.com>

  reply	other threads:[~2026-08-19  5:25 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-17  8:26 [PATCH i-g-t v5 0/4] kms_dp_linktrain_fallback: Add UHBR-to-HBR fallback subtest Sowmiya S
2026-08-17  8:26 ` [PATCH i-g-t v5 1/4] lib/i915/i915_dp: Add UHBR helpers and const-correct set_link_params Sowmiya S
2026-08-19  5:24   ` Joshi, Kunal1
2026-08-17  8:26 ` [PATCH i-g-t v5 2/4] tests/intel/kms_dp_linktrain_fallback: Reset traversed MST output count Sowmiya S
2026-08-19  5:24   ` Joshi, Kunal1 [this message]
2026-08-17  8:26 ` [PATCH i-g-t v5 3/4] tests/intel/kms_dp_linktrain_fallback: Add UHBR-to-HBR fallback subtest Sowmiya S
2026-08-19  5:25   ` Joshi, Kunal1
2026-08-17  8:26 ` [PATCH i-g-t v5 4/4] tests/intel/kms_dp_linktrain_fallback: commit display reset before fallback Sowmiya S
2026-08-19  5:16   ` Joshi, Kunal1
2026-08-17  9:02 ` [PATCH i-g-t v5 0/4] kms_dp_linktrain_fallback: Add UHBR-to-HBR fallback subtest Jani Nikula
2026-08-17  9:21   ` S, Sowmiya
2026-08-17  9:50     ` Jani Nikula
2026-08-17 16:23 ` ✓ Xe.CI.BAT: success for kms_dp_linktrain_fallback: Add UHBR-to-HBR fallback subtest (rev3) Patchwork
2026-08-17 16:39 ` ✓ i915.CI.BAT: " Patchwork
2026-08-17 19:04 ` ✗ Xe.CI.FULL: failure " Patchwork
2026-08-18  6:30 ` ✗ i915.CI.Full: " Patchwork

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