[PATCH] net/ibmvnic: Remove tests of member address

[PATCH] net/ibmvnic: Remove tests of member address

[Wen Yang]

The driver was checking for non-NULL address.
- adapter->napi[i]

This is pointless as these will be always non-NULL, since the
'dapter->napi' is allocated in init_napi().
It is safe to get rid of useless checks for addresses to fix the
coccinelle warning:
>>drivers/net/ethernet/ibm/ibmvnic.c: test of a variable/field address
Since such statements always return true, they are redundant.

Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: Michael Ellerman <mpe@ellerman.id.au>
CC: Thomas Falcon <tlfalcon@linux.ibm.com>
CC: John Allen <jallen@linux.ibm.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: linuxppc-dev@lists.ozlabs.org
CC: netdev@vger.kernel.org
CC: linux-kernel@vger.kernel.org
---
 drivers/net/ethernet/ibm/ibmvnic.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index ed50b8dee44f..14d00985f087 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -773,11 +773,8 @@ static void release_napi(struct ibmvnic_adapter *adapter)
 		return;
 
 	for (i = 0; i < adapter->num_active_rx_napi; i++) {
-		if (&adapter->napi[i]) {
-			netdev_dbg(adapter->netdev,
-				   "Releasing napi[%d]\n", i);
-			netif_napi_del(&adapter->napi[i]);
-		}
+		netdev_dbg(adapter->netdev, "Releasing napi[%d]\n", i);
+		netif_napi_del(&adapter->napi[i]);
 	}
 
 	kfree(adapter->napi);
-- 
2.19.1

Re: [PATCH] net/ibmvnic: Remove tests of member address

[David Miller]

From: Wen Yang <wen.yang99@zte.com.cn>
Date: Tue, 11 Dec 2018 12:20:46 +0800

> The driver was checking for non-NULL address.
> - adapter->napi[i]
> 
> This is pointless as these will be always non-NULL, since the
> 'dapter->napi' is allocated in init_napi().
> It is safe to get rid of useless checks for addresses to fix the
> coccinelle warning:
>>>drivers/net/ethernet/ibm/ibmvnic.c: test of a variable/field address
> Since such statements always return true, they are redundant.
> 
> Signed-off-by: Wen Yang <wen.yang99@zte.com.cn>

Applied.