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From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Imre Deak <imre.deak@intel.com>
Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 5/9] drm/display/dp_mst: Fix the payload VCPI check in drm_dp_mst_dump_topology()
Date: Fri, 27 Jan 2023 21:42:39 +0200	[thread overview]
Message-ID: <Y9QpL1Y110IZcrSK@intel.com> (raw)
In-Reply-To: <20230125114852.748337-6-imre.deak@intel.com>

On Wed, Jan 25, 2023 at 01:48:48PM +0200, Imre Deak wrote:
> Fix an off-by-one error in the VCPI check in drm_dp_mst_dump_topology().
> 
> Cc: Lyude Paul <lyude@redhat.com>
> Cc: dri-devel@lists.freedesktop.org
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/display/drm_dp_mst_topology.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
> index 81cc0c3b1e000..619f616d69e20 100644
> --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
> @@ -4770,7 +4770,7 @@ void drm_dp_mst_dump_topology(struct seq_file *m,
>  		list_for_each_entry(payload, &state->payloads, next) {
>  			char name[14];
>  
> -			if (payload->vcpi != i || payload->delete)
> +			if (payload->vcpi != i + 1 || payload->delete)

Why does this code even do that funny nested double loop?

>  				continue;
>  
>  			fetch_monitor_name(mgr, payload->port, name, sizeof(name));
> -- 
> 2.37.1

-- 
Ville Syrjälä
Intel

WARNING: multiple messages have this Message-ID (diff)
From: "Ville Syrjälä" <ville.syrjala@linux.intel.com>
To: Imre Deak <imre.deak@intel.com>
Cc: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: Re: [PATCH 5/9] drm/display/dp_mst: Fix the payload VCPI check in drm_dp_mst_dump_topology()
Date: Fri, 27 Jan 2023 21:42:39 +0200	[thread overview]
Message-ID: <Y9QpL1Y110IZcrSK@intel.com> (raw)
In-Reply-To: <20230125114852.748337-6-imre.deak@intel.com>

On Wed, Jan 25, 2023 at 01:48:48PM +0200, Imre Deak wrote:
> Fix an off-by-one error in the VCPI check in drm_dp_mst_dump_topology().
> 
> Cc: Lyude Paul <lyude@redhat.com>
> Cc: dri-devel@lists.freedesktop.org
> Signed-off-by: Imre Deak <imre.deak@intel.com>
> ---
>  drivers/gpu/drm/display/drm_dp_mst_topology.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c
> index 81cc0c3b1e000..619f616d69e20 100644
> --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c
> +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c
> @@ -4770,7 +4770,7 @@ void drm_dp_mst_dump_topology(struct seq_file *m,
>  		list_for_each_entry(payload, &state->payloads, next) {
>  			char name[14];
>  
> -			if (payload->vcpi != i || payload->delete)
> +			if (payload->vcpi != i + 1 || payload->delete)

Why does this code even do that funny nested double loop?

>  				continue;
>  
>  			fetch_monitor_name(mgr, payload->port, name, sizeof(name));
> -- 
> 2.37.1

-- 
Ville Syrjälä
Intel

  reply	other threads:[~2023-01-27 19:43 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-25 11:48 [Intel-gfx] [PATCH 0/9] drm/i915/dp_mst: Fix MST payload removal during output disabling Imre Deak
2023-01-25 11:48 ` [Intel-gfx] [PATCH 1/9] drm/i915/dp_mst: Add the MST topology state for modesetted CRTCs Imre Deak
2023-01-25 11:48   ` Imre Deak
2023-01-26  9:13   ` [Intel-gfx] [PATCH v2 " Imre Deak
2023-01-26  9:13     ` Imre Deak
2023-01-26 18:34     ` [Intel-gfx] " Ville Syrjälä
2023-01-26 20:29     ` Lyude Paul
2023-01-26 20:29       ` Lyude Paul
2023-01-25 11:48 ` [Intel-gfx] [PATCH 2/9] drm/display/dp_mst: Handle old/new payload states in drm_dp_remove_payload() Imre Deak
2023-01-25 11:48   ` Imre Deak
2023-01-25 11:48   ` Imre Deak
2023-01-26 17:37   ` [Intel-gfx] " Ville Syrjälä
2023-01-26 17:37     ` Ville Syrjälä
2023-01-26 17:37     ` Ville Syrjälä
2023-01-26 18:33     ` [Intel-gfx] " Ville Syrjälä
2023-01-26 18:33       ` Ville Syrjälä
2023-01-26 20:21       ` Imre Deak
2023-01-26 20:21         ` Imre Deak
2023-01-25 11:48 ` [Intel-gfx] [PATCH 3/9] drm/display/dp_mst: Add drm_atomic_get_old_mst_topology_state() Imre Deak
2023-01-25 11:48   ` Imre Deak
2023-01-25 11:48   ` Imre Deak
2023-01-26 18:36   ` [Intel-gfx] " Ville Syrjälä
2023-01-26 18:36     ` Ville Syrjälä
2023-01-26 18:36     ` Ville Syrjälä
2023-01-26 20:28     ` [Intel-gfx] " Imre Deak
2023-01-26 20:28       ` Imre Deak
2023-01-26 20:28       ` Imre Deak
2023-01-25 11:48 ` [Intel-gfx] [PATCH 4/9] drm/i915/dp_mst: Fix payload removal during output disabling Imre Deak
2023-01-25 11:48   ` Imre Deak
2023-01-26 18:38   ` [Intel-gfx] " Ville Syrjälä
2023-01-26 20:48     ` Imre Deak
2023-01-25 11:48 ` [Intel-gfx] [PATCH 5/9] drm/display/dp_mst: Fix the payload VCPI check in drm_dp_mst_dump_topology() Imre Deak
2023-01-25 11:48   ` Imre Deak
2023-01-27 19:42   ` Ville Syrjälä [this message]
2023-01-27 19:42     ` Ville Syrjälä
2023-01-27 19:55     ` [Intel-gfx] " Imre Deak
2023-01-27 19:55       ` Imre Deak
2023-01-25 11:48 ` [Intel-gfx] [PATCH 6/9] drm/i915: Factor out helpers for modesetting CRTCs and connectors Imre Deak
2023-01-25 11:48 ` [Intel-gfx] [PATCH 7/9] drm/i915/dp_mst: Move getting the MST topology state earlier to connector check Imre Deak
2023-01-25 11:48 ` [Intel-gfx] [PATCH 8/9] drm/display/dp_mst: Add a helper to verify the MST payload state Imre Deak
2023-01-25 11:48   ` Imre Deak
2023-01-25 11:48 ` [Intel-gfx] [PATCH 9/9] drm/i915/dp_mst: Verify the MST state of modesetted outputs Imre Deak
2023-01-25 23:39 ` [Intel-gfx] ✗ Fi.CI.BUILD: failure for drm/i915/dp_mst: Fix MST payload removal during output disabling Patchwork
2023-01-26 10:04 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for drm/i915/dp_mst: Fix MST payload removal during output disabling (rev2) Patchwork
2023-01-26 10:24 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2023-01-26 16:55 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork

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