diff --git a/patches.suse/platform-x86-intel_pmt_telemetry-Ignore-zero-sized-e.patch b/patches.suse/platform-x86-intel_pmt_telemetry-Ignore-zero-sized-e.patch new file mode 100644 index 0000000..31df5ed --- /dev/null +++ b/patches.suse/platform-x86-intel_pmt_telemetry-Ignore-zero-sized-e.patch @@ -0,0 +1,43 @@ +From ef195e8a7f43924b9979b2cd81ac7fa54f24bb3c Mon Sep 17 00:00:00 2001 +From: "David E. Box" +Date: Tue, 17 Aug 2021 15:40:17 -0700 +Subject: [PATCH] platform/x86: intel_pmt_telemetry: Ignore zero sized entries +Git-commit: ef195e8a7f43924b9979b2cd81ac7fa54f24bb3c +Patch-mainline: v5.15-rc1 +References: bsc#1196591 + +Some devices may expose non-functioning entries that are reserved for +future use. These entries have zero size. Ignore them during probe. + +Signed-off-by: David E. Box +Link: https://lore.kernel.org/r/20210817224018.1013192-5-david.e.box@linux.intel.com +Reviewed-by: Hans de Goede +Signed-off-by: Hans de Goede +Acked-by: Takashi Iwai + +--- + drivers/platform/x86/intel/pmt/telemetry.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +diff --git a/drivers/platform/x86/intel/pmt/telemetry.c b/drivers/platform/x86/intel/pmt/telemetry.c +index a58843360fbf..38d52651c572 100644 +--- a/drivers/platform/x86/intel/pmt/telemetry.c ++++ b/drivers/platform/x86/intel/pmt/telemetry.c +@@ -61,6 +61,14 @@ static int pmt_telem_header_decode(struct intel_pmt_entry *entry, + /* Size is measured in DWORDS, but accessor returns bytes */ + header->size = TELEM_SIZE(readl(disc_table)); + ++ /* ++ * Some devices may expose non-functioning entries that are ++ * reserved for future use. They have zero size. Do not fail ++ * probe for these. Just ignore them. ++ */ ++ if (header->size == 0) ++ return 1; ++ + return 0; + } + +-- +2.31.1 + diff --git a/series.conf b/series.conf index 7f86c2a..c41cbe2 100644 --- a/series.conf +++ b/series.conf @@ -2161,6 +2161,7 @@ patches.suse/platform-x86-ISST-Fix-optimization-with-use-of-numa.patch patches.suse/platform-x86-intel-pmt-Use-y-instead-of-objs-in-Make.patch patches.suse/platform-x86-intel_pmc_core-Prevent-possibile-overfl.patch + patches.suse/platform-x86-intel_pmt_telemetry-Ignore-zero-sized-e.patch patches.suse/platform-x86-intel_pmc_core-Move-to-intel-sub-direct.patch patches.suse/platform-x86-intel-pmc-core-Add-Alderlake-support-to.patch patches.suse/platform-x86-intel-pmc-core-Add-Latency-Tolerance-Re.patch