Hi, > >Roger Quadros <rogerq@xxxxxx> writes: >>>>> +extern const char *usb_decode_ctrl(char *str, size_t size, __u8 bRequestType, >>>>> + __u8 bRequest, __u16 wValue, __u16 wIndex, >>>>> + __u16 wLength); >>>>> + >>>> >>>> where's the stub when !TRACING? >>> >>> Right, I will add >>> #ifdef CONFIG_TRACING >>> ..... >>> #endif >> >> Can usb_decode_ctrl() be used even when CONFIG_TRACING is not set? >> If yes then above #ifdefe is not sufficient. >> >> You might need to do something like >> >> #if defined(CONFIG_TRACING) >> >> extern const char *usb_decode_ctrl(..) >> >> #else >> >> static inline const char *usb_decode_ctrl(..) { >> return NULL; >> } >> >> #endif > >This is what I mean. They shouldn't be used outside of TRACING, but it's >far safer to have the stubs. usb-common-$(CONFIG_TRACING) += debug.o has been added in Makefile so we don't want to use this if CONFIG_TRACING is not set. I assume that with this approach this part is correct. Thanks Pawell > >-- >balbi