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usb/early: remove set but not used variable 'remain_length'

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Fixes gcc '-Wunused-but-set-variable' warning:

drivers/usb/early/xhci-dbc.c: In function 'xdbc_handle_tx_event':
drivers/usb/early/xhci-dbc.c:720:9: warning:
 variable 'remain_length' set but not used [-Wunused-but-set-variable]

It never be used since introduction in
commit aeb9dd1de9 ("usb/early: Add driver for xhci debug capability")

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
YueHaibing 2018-10-06 02:23:01 +00:00 committed by Greg Kroah-Hartman
parent f65861c645
commit 24f5975f3a
1 changed files with 0 additions and 3 deletions
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3
drivers/usb/early/xhci-dbc.c
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@ -717,17 +717,14 @@ static void xdbc_handle_port_status(struct xdbc_trb *evt_trb)
static void xdbc_handle_tx_event(struct xdbc_trb *evt_trb)
{
size_t remain_length;
u32 comp_code;
int ep_id;
comp_code = GET_COMP_CODE(le32_to_cpu(evt_trb->field[2]));
remain_length = EVENT_TRB_LEN(le32_to_cpu(evt_trb->field[2]));
ep_id = TRB_TO_EP_ID(le32_to_cpu(evt_trb->field[3]));
switch (comp_code) {
case COMP_SUCCESS:
remain_length = 0;
case COMP_SHORT_PACKET:
break;
case COMP_TRB_ERROR: