Commit 4548f10b authored by Jani Nikula's avatar Jani Nikula
Browse files

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: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: default avatarHarry Wentland <harry.wentland@amd.com>
Acked-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Acked-by: default avatarHamza Mahfooz <hamza.mahfooz@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240812122312.1567046-2-jani.nikula@intel.com


Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
parent 33929707

drivers/gpu/drm/display/drm_dp_mst_topology.c

+1 −9
Original line number Diff line number Diff line
@@ -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;

}