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Message-Id: <20200921162035.038066716@linuxfoundation.org>
Date: Mon, 21 Sep 2020 18:27:52 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Haiyang Zhang <haiyangz@...rosoft.com>,
"David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.19 08/49] hv_netvsc: Remove "unlikely" from netvsc_select_queue
From: Haiyang Zhang <haiyangz@...rosoft.com>
commit 4d820543c54c47a2bd3c95ddbf52f83c89a219a0 upstream.
When using vf_ops->ndo_select_queue, the number of queues of VF is
usually bigger than the synthetic NIC. This condition may happen
often.
Remove "unlikely" from the comparison of ndev->real_num_tx_queues.
Fixes: b3bf5666a510 ("hv_netvsc: defer queue selection to VF")
Signed-off-by: Haiyang Zhang <haiyangz@...rosoft.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/net/hyperv/netvsc_drv.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -378,7 +378,7 @@ static u16 netvsc_select_queue(struct ne
}
rcu_read_unlock();
- while (unlikely(txq >= ndev->real_num_tx_queues))
+ while (txq >= ndev->real_num_tx_queues)
txq -= ndev->real_num_tx_queues;
return txq;
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