Re: [PATCH] ieee802154: remove a redundant local variable 'i'

From: zhong jiang
Date: Fri Sep 28 2018 - 02:38:03 EST


On 2018/9/27 22:47, Stefan Schmidt wrote:
> Hello.
>
> On 19/09/2018 16:41, zhong jiang wrote:
>> The local variable 'i' is never used after being assigned.
>> hence it should be redundant adn can be removed.
>>
>> Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
>> ---
>> net/ieee802154/nl802154.c | 2 --
>> 1 file changed, 2 deletions(-)
>>
>> diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
>> index 99f6c25..5b90151 100644
>> --- a/net/ieee802154/nl802154.c
>> +++ b/net/ieee802154/nl802154.c
>> @@ -445,7 +445,6 @@ static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
>> {
>> struct nlattr *nl_cmds;
>> void *hdr;
>> - int i;
>>
>> hdr = nl802154hdr_put(msg, portid, seq, flags, cmd);
>> if (!hdr)
>> @@ -508,7 +507,6 @@ static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
>> if (!nl_cmds)
>> goto nla_put_failure;
>>
>> - i = 0;
>> #define CMD(op, n) \
>> do { \
>> if (rdev->ops->op) { \
>>
> Sorry, but this patch is wrong. The variable i is used in line 513
> inside the CMD() macro. The compiler clearly tells this when running
> with your patch:
>
> net/ieee802154/nl802154.c: In function ânl802154_send_wpan_phyâ:
> net/ieee802154/nl802154.c:513:4: error: âiâ undeclared (first use in
> this function)
>
> I would appreciate if patches sent out would at least be compile tested.
Sorry, I really double check and compile test.

Thanks,
zhong jiang
> regards
> Stefan Schmidt
>
> .
>