[PATCH net-next] net: vmxnet3: remove multiple false checks in vmxnet3_ethtool.c

From: Jean Sacren <redacted>

In one if branch, (ec->rx_coalesce_usecs != 0) is checked.  When it is
checked again in two more places, it is always false and has no effect
on the whole check expression.  We should remove it in both places.

In another if branch, (ec->use_adaptive_rx_coalesce != 0) is checked.
When it is checked again, it is always false.  We should remove the
entire branch with it.

In addition we might as well let C precedence dictate by getting rid of
two pairs of parentheses in the neighboring lines in order to keep
expressions on both sides of '||' in balance with checkpatch warning
silenced.

Signed-off-by: Jean Sacren <redacted>
---
 drivers/net/vmxnet3/vmxnet3_ethtool.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_ethtool.c b/drivers/net/vmxnet3/vmxnet3_ethtool.c
index 5dd8360b21a0..16f3a2057b90 100644
--- a/drivers/net/vmxnet3/vmxnet3_ethtool.c
+++ b/drivers/net/vmxnet3/vmxnet3_ethtool.c

@@ -1134,9 +1134,8 @@ static int vmxnet3_set_coalesce(struct net_device *netdev,
 	}
 
 	if (ec->use_adaptive_rx_coalesce != 0) {
-		if ((ec->rx_coalesce_usecs != 0) ||
-		    (ec->tx_max_coalesced_frames != 0) ||
-		    (ec->rx_max_coalesced_frames != 0)) {
+		if (ec->tx_max_coalesced_frames != 0 ||
+		    ec->rx_max_coalesced_frames != 0) {
 			return -EINVAL;
 		}
 		memset(adapter->coal_conf, 0, sizeof(*adapter->coal_conf));

@@ -1146,11 +1145,6 @@ static int vmxnet3_set_coalesce(struct net_device *netdev,
 
 	if ((ec->tx_max_coalesced_frames != 0) ||
 	    (ec->rx_max_coalesced_frames != 0)) {
-		if ((ec->rx_coalesce_usecs != 0) ||
-		    (ec->use_adaptive_rx_coalesce != 0)) {
-			return -EINVAL;
-		}
-
 		if ((ec->tx_max_coalesced_frames >
 		    VMXNET3_COAL_STATIC_MAX_DEPTH) ||
 		    (ec->rx_max_coalesced_frames >

Hello:

This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski [off-list ref]:

On Sat, 30 Oct 2021 19:27:28 -0600 you wrote:

From: Jean Sacren <redacted>

In one if branch, (ec->rx_coalesce_usecs != 0) is checked.  When it is
checked again in two more places, it is always false and has no effect
on the whole check expression.  We should remove it in both places.

In another if branch, (ec->use_adaptive_rx_coalesce != 0) is checked.
When it is checked again, it is always false.  We should remove the
entire branch with it.

[...]

Here is the summary with links:
  - [net-next] net: vmxnet3: remove multiple false checks in vmxnet3_ethtool.c
    https://git.kernel.org/netdev/net-next/c/1d6d336fed6b

You are awesome, thank you!
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