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-rw-r--r--arch/x86/kernel/cpu/mcheck/mce-internal.h15
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce-internal.h b/arch/x86/kernel/cpu/mcheck/mce-internal.h
index 374d1aa66952..ceb67cd5918f 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-internal.h
+++ b/arch/x86/kernel/cpu/mcheck/mce-internal.h
@@ -113,21 +113,6 @@ static inline void mce_register_injector_chain(struct notifier_block *nb) { }
static inline void mce_unregister_injector_chain(struct notifier_block *nb) { }
#endif
-#ifndef CONFIG_X86_64
-/*
- * On 32-bit systems it would be difficult to safely unmap a poison page
- * from the kernel 1:1 map because there are no non-canonical addresses that
- * we can use to refer to the address without risking a speculative access.
- * However, this isn't much of an issue because:
- * 1) Few unmappable pages are in the 1:1 map. Most are in HIGHMEM which
- * are only mapped into the kernel as needed
- * 2) Few people would run a 32-bit kernel on a machine that supports
- * recoverable errors because they have too much memory to boot 32-bit.
- */
-static inline void mce_unmap_kpfn(unsigned long pfn) {}
-#define mce_unmap_kpfn mce_unmap_kpfn
-#endif
-
struct mca_config {
bool dont_log_ce;
bool cmci_disabled;