We get 1 warning when building kernel with W=1: drivers/isdn/hisax/hscx.c:175:1: warning: no previous prototype for 'open_hscxstate' [-Wmissing-prototypes]
In fact, this function is declared in drivers/isdn/hisax/elsa_ser.c, but should be declard in a header file, thus can be recognized in other file. So this patch moves the declaration into drivers/isdn/hisax/hscx.h. Signed-off-by: Baoyou Xie <baoyou....@linaro.org> --- drivers/isdn/hisax/elsa_ser.c | 2 +- drivers/isdn/hisax/hscx.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/isdn/hisax/elsa_ser.c b/drivers/isdn/hisax/elsa_ser.c index a2a358c..34ccc18 100644 --- a/drivers/isdn/hisax/elsa_ser.c +++ b/drivers/isdn/hisax/elsa_ser.c @@ -10,6 +10,7 @@ #include <linux/serial.h> #include <linux/serial_reg.h> #include <linux/slab.h> +#include "hscx.h" #define MAX_MODEM_BUF 256 #define WAKEUP_CHARS (MAX_MODEM_BUF / 2) @@ -419,7 +420,6 @@ static void rs_interrupt_elsa(struct IsdnCardState *cs) #endif } -extern int open_hscxstate(struct IsdnCardState *cs, struct BCState *bcs); extern void modehscx(struct BCState *bcs, int mode, int bc); extern void hscx_l2l1(struct PStack *st, int pr, void *arg); diff --git a/drivers/isdn/hisax/hscx.h b/drivers/isdn/hisax/hscx.h index 1148b4b..fa7bf16 100644 --- a/drivers/isdn/hisax/hscx.h +++ b/drivers/isdn/hisax/hscx.h @@ -39,3 +39,4 @@ extern void modehscx(struct BCState *bcs, int mode, int bc); extern void clear_pending_hscx_ints(struct IsdnCardState *cs); extern void inithscx(struct IsdnCardState *cs); extern void inithscxisac(struct IsdnCardState *cs, int part); +int open_hscxstate(struct IsdnCardState *cs, struct BCState *bcs); -- 2.7.4
