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platform/x86/intel/pmt: Ignore uninitialized entries

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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: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20230413012922.1521377-1-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
This commit is contained in:
David E. Box 2023-04-12 18:29:22 -07:00 committed by Hans de Goede
parent efebfa80ce
commit 3f581602a2
1 changed files with 1 additions and 1 deletions
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2
drivers/platform/x86/intel/pmt/telemetry.c
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@ -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;