Re: [PATCH net-next] net: bridge: remove unneeded variable 'err'

[YueHaibing]

On 2018/12/17 17:51, Nikolay Aleksandrov wrote:
> On 17/12/2018 11:46, YueHaibing wrote:
>> function br_multicast_toggle now always return 0,
>> so the variable 'err' is unneeded.
>> Also cleanup dead branch in br_changelink.
>>
>> Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
>> ---
>>  net/bridge/br_multicast.c | 3 +--
>>  net/bridge/br_netlink.c   | 4 +---
>>  2 files changed, 2 insertions(+), 5 deletions(-)
>>
> 
> That is correct, but in such case just make it void.

In net/bridge/br_sysfs_br.c:

static ssize_t multicast_snooping_store(struct device *d,
                                        struct device_attribute *attr,
                                        const char *buf, size_t len)
{
        return store_bridge_parm(d, buf, len, br_multicast_toggle);
}

and store_bridge_parm need the returned err.

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