[PATCH] net/mana: avoid the use of variable length array

[longli@linuxonhyperv.com]

From: Long Li <longli@microsoft.com>

The pathname can be defined as name[MAX_PATH]. This makes the driver
compilable using MSVC.

Signed-off-by: Long Li <longli@microsoft.com>
---
 drivers/net/mana/mana.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/mana/mana.c b/drivers/net/mana/mana.c
index c37c4e3444..d12dff6ce1 100644
--- a/drivers/net/mana/mana.c
+++ b/drivers/net/mana/mana.c
@@ -36,11 +36,8 @@ static rte_spinlock_t mana_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
 
 /* Allocate a buffer on the stack and fill it with a printf format string. */
 #define MANA_MKSTR(name, ...) \
-	int mkstr_size_##name = snprintf(NULL, 0, "" __VA_ARGS__); \
-	char name[mkstr_size_##name + 1]; \
-	\
-	memset(name, 0, mkstr_size_##name + 1); \
-	snprintf(name, sizeof(name), "" __VA_ARGS__)
+	char name[PATH_MAX]; \
+	snprintf(name, PATH_MAX, "" __VA_ARGS__)
 
 int mana_logtype_driver;
 int mana_logtype_init;
-- 
2.34.1