[PATCH 1/2] drm/amdkfd: Fix updating IO links during device removal

Mukul Joshi mukul.joshi at amd.com
Fri Apr 22 19:02:31 UTC 2022


The logic to update the IO links when a KFD device
is removed was not correct as it would miss updating
the proximity domain values for some nodes where the
node_from and node_to both were greater values than the
proximity domain value of the KFD device being removed
from topology.

Fixes: 9be62cbcc62f ("drm/amdkfd: Cleanup IO links during KFD device removal")
Signed-off-by: Mukul Joshi <mukul.joshi at amd.com>
---
 drivers/gpu/drm/amd/amdkfd/kfd_topology.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
index 8b7710b4d3ed..4283afd60fa5 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_topology.c
@@ -1534,13 +1534,13 @@ static void kfd_topology_update_io_links(int proximity_domain)
 				list_del(&iolink->list);
 				dev->io_link_count--;
 				dev->node_props.io_links_count--;
-			} else if (iolink->node_from > proximity_domain) {
-				iolink->node_from--;
-			} else if (iolink->node_to > proximity_domain) {
-				iolink->node_to--;
+			} else {
+				if (iolink->node_from > proximity_domain)
+					iolink->node_from--;
+				if (iolink->node_to > proximity_domain)
+					iolink->node_to--;
 			}
 		}
-
 	}
 }
 
-- 
2.35.1



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