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net: fec: ptp: remove unused variable 'ns' in fec_time_keep() 

Fixes the following W=1 kernel build warning(s):

drivers/net/ethernet/freescale/fec_ptp.c:523:6: warning:
 variable 'ns' set but not used [-Wunused-but-set-variable]
  523 |  u64 ns;
      |      ^~

After commit 6605b730c0 ("FEC: Add time stamping code and a PTP
hardware clock"), variable 'ns' is never used in fec_time_keep(),
so removing it to avoid build warning.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>
Acked-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Zhang Changzhong 2020-09-14 21:14:24 +08:00 committed by David S. Miller
parent 85743cead5
commit 992bae7e42
1 changed files with 1 additions and 2 deletions
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3
drivers/net/ethernet/freescale/fec_ptp.c
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@ -520,13 +520,12 @@ static void fec_time_keep(struct work_struct *work)
{
struct delayed_work *dwork = to_delayed_work(work);
struct fec_enet_private *fep = container_of(dwork, struct fec_enet_private, time_keep);
u64 ns;
unsigned long flags;
mutex_lock(&fep->ptp_clk_mutex);
if (fep->ptp_clk_on) {
spin_lock_irqsave(&fep->tmreg_lock, flags);
ns = timecounter_read(&fep->tc);
timecounter_read(&fep->tc);
spin_unlock_irqrestore(&fep->tmreg_lock, flags);
}
mutex_unlock(&fep->ptp_clk_mutex);