It's defined and only used in the same file, so remove its declaration in mtu3.h, and make it static Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> --- drivers/usb/mtu3/mtu3.h | 1 - drivers/usb/mtu3/mtu3_core.c | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/usb/mtu3/mtu3.h b/drivers/usb/mtu3/mtu3.h index aef0a0bba25a..a8a7ee11f7b7 100644 --- a/drivers/usb/mtu3/mtu3.h +++ b/drivers/usb/mtu3/mtu3.h @@ -422,7 +422,6 @@ int mtu3_config_ep(struct mtu3 *mtu, struct mtu3_ep *mep, int interval, int burst, int mult); void mtu3_deconfig_ep(struct mtu3 *mtu, struct mtu3_ep *mep); void mtu3_ep_stall_set(struct mtu3_ep *mep, bool set); -void mtu3_ep0_setup(struct mtu3 *mtu); void mtu3_start(struct mtu3 *mtu); void mtu3_stop(struct mtu3 *mtu); void mtu3_dev_on_off(struct mtu3 *mtu, int is_on); diff --git a/drivers/usb/mtu3/mtu3_core.c b/drivers/usb/mtu3/mtu3_core.c index b3b459937566..2ef528f39ba3 100644 --- a/drivers/usb/mtu3/mtu3_core.c +++ b/drivers/usb/mtu3/mtu3_core.c @@ -536,7 +536,7 @@ static void get_ep_fifo_config(struct mtu3 *mtu) rx_fifo->base, rx_fifo->limit); } -void mtu3_ep0_setup(struct mtu3 *mtu) +static void mtu3_ep0_setup(struct mtu3 *mtu) { u32 maxpacket = mtu->g.ep0->maxpacket; u32 csr; -- 2.18.0