2018-03-21 11:18:10

by <Hariprasath Elango>

[permalink] [raw]
Subject: [PATCH] staging: fsl-dpaa2: replace simple switch case by if statement

From: HariPrasath Elango <[email protected]>

Replace a couple of simple switch cases by if condition

Signed-off-by: HariPrasath Elango <[email protected]>
---
drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c | 11 ++++-------
1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
index 070a3f2..fb517cb 100644
--- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
+++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
@@ -171,8 +171,7 @@ static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
u8 *p = data;
int i;

- switch (stringset) {
- case ETH_SS_STATS:
+ if (stringset == ETH_SS_STATS) {
for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
@@ -181,18 +180,16 @@ static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
p += ETH_GSTRING_LEN;
}
- break;
}
}

static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset)
{
- switch (sset) {
- case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */
+ if (sset == ETH_SS_STATS)
+ /* ethtool_get_stats(), ethtool_get_drvinfo() */
return DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS;
- default:
+ else
return -EOPNOTSUPP;
- }
}

/** Fill in hardware counters, as returned by MC.
--
2.10.0.GIT



2018-03-21 11:48:20

by David Laight

[permalink] [raw]
Subject: RE: [PATCH] staging: fsl-dpaa2: replace simple switch case by if statement

From: > [email protected]
> Sent: 21 March 2018 11:16
> From: HariPrasath Elango <[email protected]>
>
> Replace a couple of simple switch cases by if condition

Why?
In principle extra 'case' might be needed in the future.

...
> diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c b/drivers/staging/fsl-
> dpaa2/ethernet/dpaa2-ethtool.c
> index 070a3f2..fb517cb 100644
> --- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
> +++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
> @@ -171,8 +171,7 @@ static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
> u8 *p = data;
> int i;
>
> - switch (stringset) {
> - case ETH_SS_STATS:
> + if (stringset == ETH_SS_STATS) {
> for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
> strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
> p += ETH_GSTRING_LEN;
> @@ -181,18 +180,16 @@ static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset,
> strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
> p += ETH_GSTRING_LEN;
> }
> - break;
> }
> }
...

David


2018-03-21 12:19:00

by Denis Kirjanov

[permalink] [raw]
Subject: Re: [PATCH] staging: fsl-dpaa2: replace simple switch case by if statement

On 3/21/18, David Laight <[email protected]> wrote:
> From: > [email protected]
>> Sent: 21 March 2018 11:16
>> From: HariPrasath Elango <[email protected]>
>>
>> Replace a couple of simple switch cases by if condition
>
> Why?
> In principle extra 'case' might be needed in the future.

I had the same question when saw it.
It's better to keep things as is.
>
> ...
>> diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
>> b/drivers/staging/fsl-
>> dpaa2/ethernet/dpaa2-ethtool.c
>> index 070a3f2..fb517cb 100644
>> --- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
>> +++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
>> @@ -171,8 +171,7 @@ static void dpaa2_eth_get_strings(struct net_device
>> *netdev, u32 stringset,
>> u8 *p = data;
>> int i;
>>
>> - switch (stringset) {
>> - case ETH_SS_STATS:
>> + if (stringset == ETH_SS_STATS) {
>> for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
>> strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
>> p += ETH_GSTRING_LEN;
>> @@ -181,18 +180,16 @@ static void dpaa2_eth_get_strings(struct net_device
>> *netdev, u32 stringset,
>> strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
>> p += ETH_GSTRING_LEN;
>> }
>> - break;
>> }
>> }
> ...
>
> David
>
> _______________________________________________
> devel mailing list
> [email protected]
> http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
>


--
Regards / Mit besten Grüßen,
Denis

2018-03-21 13:09:18

by <Hariprasath Elango>

[permalink] [raw]
Subject: Re: [PATCH] staging: fsl-dpaa2: replace simple switch case by if statement

On Wed, Mar 21, 2018 at 03:17:51PM +0300, Denis Kirjanov wrote:
> On 3/21/18, David Laight <[email protected]> wrote:
> > From: > [email protected]
> >> Sent: 21 March 2018 11:16
> >> From: HariPrasath Elango <[email protected]>
> >>
> >> Replace a couple of simple switch cases by if condition
> >
> > Why?
> > In principle extra 'case' might be needed in the future.
>
> I had the same question when saw it.
> It's better to keep things as is.
> >
> > ...

Hi, since the switch statement had only one case,I thought of doing
this. If there are plans to add more cases, we can leave it like
that.

thanks,
hari

> >> diff --git a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
> >> b/drivers/staging/fsl-
> >> dpaa2/ethernet/dpaa2-ethtool.c
> >> index 070a3f2..fb517cb 100644
> >> --- a/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
> >> +++ b/drivers/staging/fsl-dpaa2/ethernet/dpaa2-ethtool.c
> >> @@ -171,8 +171,7 @@ static void dpaa2_eth_get_strings(struct net_device
> >> *netdev, u32 stringset,
> >> u8 *p = data;
> >> int i;
> >>
> >> - switch (stringset) {
> >> - case ETH_SS_STATS:
> >> + if (stringset == ETH_SS_STATS) {
> >> for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) {
> >> strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN);
> >> p += ETH_GSTRING_LEN;
> >> @@ -181,18 +180,16 @@ static void dpaa2_eth_get_strings(struct net_device
> >> *netdev, u32 stringset,
> >> strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN);
> >> p += ETH_GSTRING_LEN;
> >> }
> >> - break;
> >> }
> >> }
> > ...
> >
> > David
> >
> > _______________________________________________
> > devel mailing list
> > [email protected]
> > http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
> >
>
>
> --
> Regards / Mit besten Gr??en,
> Denis