#define admhc_dbg_sw(ahcd, next, size, format, arg...) \
do { \
-- if (next) { \
-+ if (next != NULL) { \
- unsigned s_len; \
- s_len = scnprintf(*next, *size, format, ## arg ); \
- *size -= s_len; *next += s_len; \
+- if (next) { \
++ if (next != NULL) { \
+ unsigned s_len; \
+ s_len = scnprintf(*next, *size, format, ## arg); \
+ *size -= s_len; *next += s_len; \