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net/vmxnet3: fix debug macro pattern for vmxnet3
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Vmxnet3 uses the following debug macro style:

 #ifdef SOME_DEBUG
 #  define debug(...) do{ printf(...); } while (0)
 # else
 #  define debug(...) do{ } while (0)
 #endif

If SOME_DEBUG is undefined, then format string inside the
debug macro will never be checked by compiler. Code is
likely to break in the future when SOME_DEBUG is enabled
 because of lack of testing. This patch changes this
to the following:

 #define debug(...) \
  do { if (SOME_DEBUG_ENABLED) printf(...); } while (0)

Signed-off-by: Miao Yan <yanmiaobest@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
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@myanvm @jasowang
myanvm authored and jasowang committed Jan 11, 2016
1 parent 2e4ca7d commit 71c2f5b
Showing 1 changed file with 86 additions and 53 deletions.
139 changes: 86 additions & 53 deletions hw/net/vmxnet_debug.h
View file
Expand Up @@ -20,94 +20,127 @@

#define VMXNET_DEVICE_NAME "vmxnet3"

/* #define VMXNET_DEBUG_CB */
#define VMXNET_DEBUG_WARNINGS
#define VMXNET_DEBUG_ERRORS
/* #define VMXNET_DEBUG_INTERRUPTS */
/* #define VMXNET_DEBUG_CONFIG */
/* #define VMXNET_DEBUG_RINGS */
/* #define VMXNET_DEBUG_PACKETS */
/* #define VMXNET_DEBUG_SHMEM_ACCESS */

#undef VMXNET_DEBUG_CB
#undef VMXNET_DEBUG_INTERRUPTS
#undef VMXNET_DEBUG_CONFIG
#undef VMXNET_DEBUG_RINGS
#undef VMXNET_DEBUG_PACKETS
#undef VMXNET_DEBUG_SHMEM_ACCESS

#ifdef VMXNET_DEBUG_CB
# define VMXNET_DEBUG_CB_ENABLED 1
#else
# define VMXNET_DEBUG_CB_ENABLED 0
#endif

#ifdef VMXNET_DEBUG_WARNINGS
# define VMXNET_DEBUG_WARNINGS_ENABLED 1
#else
# define VMXNET_DEBUG_WARNINGS_ENABLED 0
#endif

#ifdef VMXNET_DEBUG_ERRORS
# define VMXNET_DEBUG_ERRORS_ENABLED 1
#else
# define VMXNET_DEBUG_ERRORS_ENABLED 0
#endif

#ifdef VMXNET_DEBUG_CONFIG
# define VMXNET_DEBUG_CONFIG_ENABLED 1
#else
# define VMXNET_DEBUG_CONFIG_ENABLED 0
#endif

#ifdef VMXNET_DEBUG_RINGS
# define VMXNET_DEBUG_RINGS_ENABLED 1
#else
# define VMXNET_DEBUG_RINGS_ENABLED 0
#endif

#ifdef VMXNET_DEBUG_PACKETS
# define VMXNET_DEBUG_PACKETS_ENABLED 1
#else
# define VMXNET_DEBUG_PACKETS_ENABLED 0
#endif

#ifdef VMXNET_DEBUG_INTERRUPTS
# define VMXNET_DEBUG_INTERRUPTS_ENABLED 1
#else
# define VMXNET_DEBUG_INTERRUPTS_ENABLED 0
#endif

#ifdef VMXNET_DEBUG_SHMEM_ACCESS
# define VMXNET_DEBUG_SHMEM_ACCESS_ENABLED 1
#else
# define VMXNET_DEBUG_SHMEM_ACCESS_ENABLED 0
#endif

#define VMW_SHPRN(fmt, ...) \
do { \
printf("[%s][SH][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
if (VMXNET_DEBUG_SHMEM_ACCESS_ENABLED) { \
printf("[%s][SH][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
} \
} while (0)
#else
#define VMW_SHPRN(fmt, ...) do {} while (0)
#endif

#ifdef VMXNET_DEBUG_CB
#define VMW_CBPRN(fmt, ...) \
do { \
printf("[%s][CB][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
if (VMXNET_DEBUG_CB_ENABLED) { \
printf("[%s][CB][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
} \
} while (0)
#else
#define VMW_CBPRN(fmt, ...) do {} while (0)
#endif

#ifdef VMXNET_DEBUG_PACKETS
#define VMW_PKPRN(fmt, ...) \
do { \
printf("[%s][PK][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
if (VMXNET_DEBUG_PACKETS_ENABLED) { \
printf("[%s][PK][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
} \
} while (0)
#else
#define VMW_PKPRN(fmt, ...) do {} while (0)
#endif

#ifdef VMXNET_DEBUG_WARNINGS
#define VMW_WRPRN(fmt, ...) \
do { \
printf("[%s][WR][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
if (VMXNET_DEBUG_WARNINGS_ENABLED) { \
printf("[%s][WR][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
} \
} while (0)
#else
#define VMW_WRPRN(fmt, ...) do {} while (0)
#endif

#ifdef VMXNET_DEBUG_ERRORS
#define VMW_ERPRN(fmt, ...) \
do { \
printf("[%s][ER][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
if (VMXNET_DEBUG_ERRORS_ENABLED) { \
printf("[%s][ER][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
} \
} while (0)
#else
#define VMW_ERPRN(fmt, ...) do {} while (0)
#endif

#ifdef VMXNET_DEBUG_INTERRUPTS
#define VMW_IRPRN(fmt, ...) \
do { \
printf("[%s][IR][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
if (VMXNET_DEBUG_INTERRUPTS_ENABLED) { \
printf("[%s][IR][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
} \
} while (0)
#else
#define VMW_IRPRN(fmt, ...) do {} while (0)
#endif

#ifdef VMXNET_DEBUG_CONFIG
#define VMW_CFPRN(fmt, ...) \
do { \
printf("[%s][CF][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
if (VMXNET_DEBUG_CONFIG_ENABLED) { \
printf("[%s][CF][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
} \
} while (0)
#else
#define VMW_CFPRN(fmt, ...) do {} while (0)
#endif

#ifdef VMXNET_DEBUG_RINGS
#define VMW_RIPRN(fmt, ...) \
do { \
printf("[%s][RI][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
if (VMXNET_DEBUG_RINGS_ENABLED) { \
printf("[%s][RI][%s]: " fmt "\n", VMXNET_DEVICE_NAME, __func__, \
## __VA_ARGS__); \
} \
} while (0)
#else
#define VMW_RIPRN(fmt, ...) do {} while (0)
#endif

#define VMXNET_MF "%02X:%02X:%02X:%02X:%02X:%02X"
#define VMXNET_MA(a) (a)[0], (a)[1], (a)[2], (a)[3], (a)[4], (a)[5]
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