From 4548f10bf4c67b569b7c9fbc6746340a558faab9 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 12 Aug 2024 15:23:11 +0300 Subject: [PATCH] drm/mst: switch to guid_gen() to generate valid GUIDs Instead of just smashing jiffies into a GUID, use guid_gen() to generate RFC 4122 compliant GUIDs. Reviewed-by: Daniel Vetter Acked-by: Harry Wentland Acked-by: Alex Deucher Acked-by: Hamza Mahfooz Link: https://patchwork.freedesktop.org/patch/msgid/20240812122312.1567046-2-jani.nikula@intel.com Signed-off-by: Jani Nikula --- drivers/gpu/drm/display/drm_dp_mst_topology.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) diff --git a/drivers/gpu/drm/display/drm_dp_mst_topology.c b/drivers/gpu/drm/display/drm_dp_mst_topology.c index 382e05cb18d7..e8695e390686 100644 --- a/drivers/gpu/drm/display/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/display/drm_dp_mst_topology.c @@ -2698,18 +2698,10 @@ static void drm_dp_mst_link_probe_work(struct work_struct *work) static bool drm_dp_validate_guid(struct drm_dp_mst_topology_mgr *mgr, guid_t *guid) { - u64 salt; - u8 buf[UUID_SIZE]; - if (!guid_is_null(guid)) return true; - salt = get_jiffies_64(); - - memcpy(&buf[0], &salt, sizeof(u64)); - memcpy(&buf[8], &salt, sizeof(u64)); - - import_guid(guid, buf); + guid_gen(guid); return false; } -- 2.50.1