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-rw-r--r--include/linux/crash_dump.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/crash_dump.h b/include/linux/crash_dump.h
index a5192b718dbe..2618577a4d6d 100644
--- a/include/linux/crash_dump.h
+++ b/include/linux/crash_dump.h
@@ -10,13 +10,14 @@
#include <linux/pgtable.h> /* for pgprot_t */
-#ifdef CONFIG_CRASH_DUMP
+/* For IS_ENABLED(CONFIG_CRASH_DUMP) */
#define ELFCORE_ADDR_MAX (-1ULL)
#define ELFCORE_ADDR_ERR (-2ULL)
extern unsigned long long elfcorehdr_addr;
extern unsigned long long elfcorehdr_size;
+#ifdef CONFIG_CRASH_DUMP
extern int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size);
extern void elfcorehdr_free(unsigned long long addr);
extern ssize_t elfcorehdr_read(char *buf, size_t count, u64 *ppos);