From: Jiri Slaby (SUSE) Date: Thu, 8 Aug 2024 10:35:40 +0000 (+0200) Subject: xhci: dbgtty: remove kfifo_out() wrapper X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=2b217514436744dd98c4d9fa48d60610f9f67d61;p=users%2Fjedix%2Flinux-maple.git xhci: dbgtty: remove kfifo_out() wrapper There is no need to check against kfifo_len() before kfifo_out(). Just ask the latter for data and it tells how much it retrieved. Or returns 0 in case there are no more. Signed-off-by: Jiri Slaby (SUSE) Cc: Mathias Nyman Cc: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org Link: https://lore.kernel.org/r/20240808103549.429349-5-jirislaby@kernel.org Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c index b74e98e943932..64ea964949975 100644 --- a/drivers/usb/host/xhci-dbgtty.c +++ b/drivers/usb/host/xhci-dbgtty.c @@ -24,19 +24,6 @@ static inline struct dbc_port *dbc_to_port(struct xhci_dbc *dbc) return dbc->priv; } -static unsigned int -dbc_send_packet(struct dbc_port *port, char *packet, unsigned int size) -{ - unsigned int len; - - len = kfifo_len(&port->write_fifo); - if (len < size) - size = len; - if (size != 0) - size = kfifo_out(&port->write_fifo, packet, size); - return size; -} - static int dbc_start_tx(struct dbc_port *port) __releases(&port->port_lock) __acquires(&port->port_lock) @@ -49,7 +36,7 @@ static int dbc_start_tx(struct dbc_port *port) while (!list_empty(pool)) { req = list_entry(pool->next, struct dbc_request, list_pool); - len = dbc_send_packet(port, req->buf, DBC_MAX_PACKET); + len = kfifo_out(&port->write_fifo, req->buf, DBC_MAX_PACKET); if (len == 0) break; do_tty_wake = true;