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-rw-r--r--include/linux/efi.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 6c100ff0cae..82d0abb2b19 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