From: Zhang Changzhong <zhangchangzh...@huawei.com> Sent: Monday, September 14,
2020 9:14 PM
> 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 6605b730c061 ("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 <hul...@huawei.com>
> Signed-off-by: Zhang Changzhong <zhangchangzh...@huawei.com>
Acked-by: Fugang Duan <fugang.d...@nxp.com>
> ---
> drivers/net/ethernet/freescale/fec_ptp.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/drivers/net/ethernet/freescale/fec_ptp.c
> b/drivers/net/ethernet/freescale/fec_ptp.c
> index a0c1f44..0405a39 100644
> --- a/drivers/net/ethernet/freescale/fec_ptp.c
> +++ b/drivers/net/ethernet/freescale/fec_ptp.c
> @@ -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);
> --
> 2.9.5
