Re: [dpdk-stable] [dpdk-dev] [PATCH 4/9] net/ipn3ke: fix incorrect commit check logic

[Kevin Traynor <ktraynor@redhat.com>]

On 30/10/2019 07:59, David Marchand wrote:
> Hello Rosen,
> 
> Review please.
> 

Ping Rosen.

> On Tue, Oct 1, 2019 at 3:04 PM Kevin Traynor <ktraynor@redhat.com> wrote:
>>
>> Coverity is complaining about identical code regardless of which branch
>> of the if else is taken. Functionally it means an error will always be
>> returned if this if else is hit. Remove the else branch.
>>
>>     CID 337928 (#1 of 1): Identical code for different branches
>>     (IDENTICAL_BRANCHES)identical_branches: The same code is executed
>>     regardless of whether n->level != IPN3KE_TM_NODE_LEVEL_COS ||
>>     n->n_children != 0U is true, because the 'then' and 'else' branches
>>     are identical. Should one of the branches be modified, or the entire
>>     'if' statement replaced?
>> 1506  if (n->level != IPN3KE_TM_NODE_LEVEL_COS ||
>> 1507          n->n_children != 0) {
>> 1508          return -rte_tm_error_set(error,
>> 1509                  EINVAL,
>> 1510                  RTE_TM_ERROR_TYPE_UNSPECIFIED,
>> 1511                  NULL,
>> 1512                  rte_strerror(EINVAL));
>>     else_branch: The else branch, identical to the then branch.
>> 1513  } else {
>> 1514          return -rte_tm_error_set(error,
>> 1515                  EINVAL,
>> 1516                  RTE_TM_ERROR_TYPE_UNSPECIFIED,
>> 1517                  NULL,
>> 1518                  rte_strerror(EINVAL));
>> 1519  }
>>
>> Coverity issue: 337928
>> Fixes: c820468ac99c ("net/ipn3ke: support TM")
>> Cc: rosen.xu@intel.com
>> Cc: stable@dpdk.org
>>
>> Signed-off-by: Kevin Traynor <ktraynor@redhat.com>
>> ---
>>  drivers/net/ipn3ke/ipn3ke_tm.c | 6 ------
>>  1 file changed, 6 deletions(-)
>>
>> diff --git a/drivers/net/ipn3ke/ipn3ke_tm.c b/drivers/net/ipn3ke/ipn3ke_tm.c
>> index adf02c157..a93145d59 100644
>> --- a/drivers/net/ipn3ke/ipn3ke_tm.c
>> +++ b/drivers/net/ipn3ke/ipn3ke_tm.c
>> @@ -1511,10 +1511,4 @@ ipn3ke_tm_hierarchy_commit_check(struct rte_eth_dev *dev,
>>                                                 NULL,
>>                                                 rte_strerror(EINVAL));
>> -                       } else {
>> -                               return -rte_tm_error_set(error,
>> -                                               EINVAL,
>> -                                               RTE_TM_ERROR_TYPE_UNSPECIFIED,
>> -                                               NULL,
>> -                                               rte_strerror(EINVAL));
>>                         }
>>                 }
>> --
>> 2.21.0
>>
>