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| author | Jani Nikula <jani.nikula@intel.com> | 2024-08-12 15:23:11 +0300 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2024-08-29 11:22:37 +0300 |
| commit | 4548f10bf4c67b569b7c9fbc6746340a558faab9 (patch) | |
| tree | d60d474f3bf7e8bb63ee5e345897dea9b25c17a7 /drivers/gpu/drm/display | |
| parent | 33929707b808ba7839c40c15d3e68cbc51070b31 (diff) | |
| download | lwn-4548f10bf4c67b569b7c9fbc6746340a558faab9.tar.gz lwn-4548f10bf4c67b569b7c9fbc6746340a558faab9.zip | |
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 <daniel.vetter@ffwll.ch>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240812122312.1567046-2-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu/drm/display')
| -rw-r--r-- | drivers/gpu/drm/display/drm_dp_mst_topology.c | 10 |
1 files changed, 1 insertions, 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; } |