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[PATCH 3/4] kvm: make printf always compile in debug output
From: |
AlexChen |
Subject: |
[PATCH 3/4] kvm: make printf always compile in debug output |
Date: |
Wed, 28 Oct 2020 15:11:37 +0800 |
User-agent: |
Mozilla/5.0 (Windows NT 6.2; WOW64; rv:17.0) Gecko/20130509 Thunderbird/17.0.6 |
Wrapped printf calls inside debug macros (DPRINTF) in `if` statement.
This will ensure that printf function will always compile even if debug
output is turned off and, in turn, will prevent bitrot of the format
strings.
Signed-off-by: AlexChen <alex.chen@huawei.com>
---
accel/kvm/kvm-all.c | 10 ++++------
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/accel/kvm/kvm-all.c b/accel/kvm/kvm-all.c
index fc6d99a731..854b352346 100644
--- a/accel/kvm/kvm-all.c
+++ b/accel/kvm/kvm-all.c
@@ -60,14 +60,12 @@
*/
#define PAGE_SIZE qemu_real_host_page_size
+#ifndef CONFIG_DEBUG_KVM
+#define CONFIG_DEBUG_KVM 0
+#endif
-#ifdef CONFIG_DEBUG_KVM
-#define DPRINTF(fmt, ...) \
- do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
-#else
#define DPRINTF(fmt, ...) \
- do { } while (0)
-#endif
+ do { if (CONFIG_DEBUG_KVM) { fprintf(stderr, fmt, ## __VA_ARGS__); } }
while (0)
#define KVM_MSI_HASHTAB_SIZE 256
--
2.19.1
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