1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/efi.h b/include/linux/efi.h
index 6c100ff0cae4..82d0abb2b19f 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -863,6 +863,12 @@ extern int efi_set_rtc_mmss(const struct timespec *now);
 extern void efi_reserve_boot_services(void);
 extern struct efi_memory_map memmap;
 
+/* Iterate through an efi_memory_map */
+#define for_each_efi_memory_desc(m, md)                                    \
+        for ((md) = (m)->map;                                              \
+             (md) <= (efi_memory_desc_t *)((m)->map_end - (m)->desc_size); \
+             (md) = (void *)(md) + (m)->desc_size)
+
 /**
  * efi_range_is_wc - check the WC bit on an address range
  * @start: starting kvirt address