RE: [PATCH net-next] liquidio: remove set but not used variable 'is25G'

From: Shaikh, Shahed
Date: Mon Aug 13 2018 - 05:08:35 EST


> -----Original Message-----
> From: netdev-owner@xxxxxxxxxxxxxxx <netdev-owner@xxxxxxxxxxxxxxx> On
> Behalf Of YueHaibing
> Sent: Monday, August 13, 2018 12:51 PM
> To: davem@xxxxxxxxxxxxx; Chickles, Derek <Derek.Chickles@xxxxxxxxxx>;
> Burla, Satananda <Satananda.Burla@xxxxxxxxxx>; Manlunas, Felix
> <Felix.Manlunas@xxxxxxxxxx>; Vatsavayi, Raghu
> <Raghu.Vatsavayi@xxxxxxxxxx>
> Cc: linux-kernel@xxxxxxxxxxxxxxx; netdev@xxxxxxxxxxxxxxx; YueHaibing
> <yuehaibing@xxxxxxxxxx>
> Subject: [PATCH net-next] liquidio: remove set but not used variable 'is25G'
>
> External Email
>
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/net/ethernet/cavium/liquidio/lio_ethtool.c: In function
> 'lio_set_link_ksettings':
> drivers/net/ethernet/cavium/liquidio/lio_ethtool.c:392:6: warning:
> variable 'is25G' set but not used [-Wunused-but-set-variable]
>
> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
> ---
> drivers/net/ethernet/cavium/liquidio/lio_ethtool.c | 7 ++-----
> 1 file changed, 2 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
> b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
> index 807ea2c..5ce604a 100644
> --- a/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
> +++ b/drivers/net/ethernet/cavium/liquidio/lio_ethtool.c
> @@ -389,16 +389,13 @@ static int lio_set_link_ksettings(struct net_device
> *netdev,
> struct lio *lio = GET_LIO(netdev);
> struct oct_link_info *linfo;
> struct octeon_device *oct;
> - u32 is25G = 0;
>
> oct = lio->oct_dev;
>
> linfo = &lio->linfo;
>
> - if (oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
> - oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID) {
> - is25G = 1;
> - } else {
> + if (!(oct->subsystem_id == OCTEON_CN2350_25GB_SUBSYS_ID ||
> + oct->subsystem_id == OCTEON_CN2360_25GB_SUBSYS_ID)) {
> return -EOPNOTSUPP;
> }

You can also remove braces which are not required for single line.

Thanks,
Shahed