Cc: stable@xxxxxxxxxxxxxxx # v5.11+
Fixes: e7e0545299d8 ("x86/sgx: Initialize metadata for Enclave Page Cache (EPC) sections")
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Closes: https://lore.kernel.org/oe-kbuild-all/202308221542.11UpkVfp-lkp@xxxxxxxxx/
Signed-off-by: Jarkko Sakkinen <jarkko@xxxxxxxxxx>
---
arch/x86/kernel/cpu/sgx/main.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c
index 166692f2d501..388350b8f5e3 100644
--- a/arch/x86/kernel/cpu/sgx/main.c
+++ b/arch/x86/kernel/cpu/sgx/main.c
@@ -732,6 +732,10 @@ int arch_memory_failure(unsigned long pfn, int flags)
}
/**
+ * sgx_calc_section_metric() - Calculate an EPC section metric
+ * @low: low 32-bit word from CPUID:0x12:{2, ...}
+ * @high: high 32-bit word from CPUID:0x12:{2, ...}
+ *
* A section metric is concatenated in a way that @low bits 12-31 define the
* bits 12-31 of the metric and @high bits 0-19 define the bits 32-51 of the
* metric.
--
2.39.2
