We get 1 warning when biuld kernel with W=1: drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c:23:6: warning: no previous prototype for '__brcmf_err' [-Wmissing-prototypes] In fact, this function is declared in brcmfmac/debug.h, so this patch add missing header dependencies. Signed-off-by: Baoyou Xie <baoyou.xie@xxxxxxxxxx> --- drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c index a10f35c..fe67559 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/tracepoint.c @@ -19,6 +19,7 @@ #ifndef __CHECKER__ #define CREATE_TRACE_POINTS #include "tracepoint.h" +#include "debug.h" void __brcmf_err(const char *func, const char *fmt, ...) { -- 2.7.4