With just 'inline', if the compiler decides not to inline them, it isn't required to emit them at all. For some targets with -Os that is causing build failures. Perhaps we might consider using '__attribute__((always_inline))' for GCC builds, but 'static inline' is a good start. --- src/rtl_adsb.c | 8 ++++---- src/rtl_power.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/src/rtl_adsb.c b/src/rtl_adsb.c index 9087de4..7aea8dd 100644 --- a/src/rtl_adsb.c +++ b/src/rtl_adsb.c @@ -183,7 +183,7 @@ int magnitute(uint8_t *buf, int len) return len/2; } -inline uint16_t single_manchester(uint16_t a, uint16_t b, uint16_t c, uint16_t d) +static inline uint16_t single_manchester(uint16_t a, uint16_t b, uint16_t c, uint16_t d) /* takes 4 consecutive real samples, return 0 or 1, BADSAMPLE on error */ { int bit, bit_p; @@ -224,17 +224,17 @@ inline uint16_t single_manchester(uint16_t a, uint16_t b, uint16_t c, uint16_t d return BADSAMPLE; } -inline uint16_t min16(uint16_t a, uint16_t b) +static inline uint16_t min16(uint16_t a, uint16_t b) { return a<b ? a : b; } -inline uint16_t max16(uint16_t a, uint16_t b) +static inline uint16_t max16(uint16_t a, uint16_t b) { return a>b ? a : b; } -inline int preamble(uint16_t *buf, int i) +static inline int preamble(uint16_t *buf, int i) /* returns 0/1 for preamble at index i */ { int i2; diff --git a/src/rtl_power.c b/src/rtl_power.c index 00f4d9f..625d818 100644 --- a/src/rtl_power.c +++ b/src/rtl_power.c @@ -250,7 +250,7 @@ void sine_table(int size) } } -inline int16_t FIX_MPY(int16_t a, int16_t b) +static inline int16_t FIX_MPY(int16_t a, int16_t b) /* fixed point multiply and scale */ { int c = ((int)a * (int)b) >> 14; -- 2.17.1