Commit 3f581602 authored by David E. Box's avatar David E. Box Committed by Hans de Goede
Browse files

platform/x86/intel/pmt: Ignore uninitialized entries 



On Intel Xeon, unused PMT regions will have uninitialized discovery headers
containing all 0xF. Instead of returning an error, just skip the region.

Signed-off-by: default avatarDavid E. Box <david.e.box@linux.intel.com>
Reviewed-by: default avatarIlpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230413012922.1521377-1-david.e.box@linux.intel.com


Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent efebfa80

drivers/platform/x86/intel/pmt/telemetry.c

+1 −1
Original line number Diff line number Diff line
@@ -78,7 +78,7 @@ static int pmt_telem_header_decode(struct intel_pmt_entry *entry, 
	 * reserved for future use. They have zero size. Do not fail

	 * probe for these. Just ignore them.

	 */

	if (header->size == 0)

	if (header->size == 0 || header->access_type == 0xF)

		return 1;



	return 0;