[PATCH 1/4] add macro dbgprint_mem_range

[WANG Chao]

dbgprint_mem_range is used for printing the given memory range under
debugging mode.

Signed-off-by: WANG Chao <chaowang at redhat.com>
---
 kexec/arch/i386/kexec-x86-common.c |  6 +-----
 kexec/kexec.h                      | 10 ++++++++++
 2 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/kexec/arch/i386/kexec-x86-common.c b/kexec/arch/i386/kexec-x86-common.c
index f55e2c2..e416177 100644
--- a/kexec/arch/i386/kexec-x86-common.c
+++ b/kexec/arch/i386/kexec-x86-common.c
@@ -374,11 +374,7 @@ int get_memory_ranges(struct memory_range **range, int *ranges,
 			mem_max = end;
 	}
 
-	dbgprintf("MEMORY RANGES\n");
-	for (i = 0; i < *ranges; i++) {
-		dbgprintf("%016Lx-%016Lx (%d)\n", (*range)[i].start,
-			  (*range)[i].end, (*range)[i].type);
-	}
+	dbgprint_mem_range("MEMORY RANGES", *range, *ranges);
 
 	return ret;
 }
diff --git a/kexec/kexec.h b/kexec/kexec.h
index 2bd6e96..753acc5 100644
--- a/kexec/kexec.h
+++ b/kexec/kexec.h
@@ -121,6 +121,16 @@ do { \
 		fprintf(stderr, __VA_ARGS__); \
 } while(0)
 
+#define dbgprint_mem_range(prefix, mr, nr_mr) \
+do { \
+	int i; \
+	dbgprintf(prefix "\n"); \
+	for (i = 0; i < nr_mr; i++) { \
+		dbgprintf("%016llx-%016llx (%d)\n", (mr)[i].start, \
+			  (mr)[i].end, (mr)[i].type);                \
+	} \
+} while (0)
+
 struct kexec_segment {
 	const void *buf;
 	size_t bufsz;
-- 
1.8.5.3