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From: Subbaraya Sundeep <sbhatta@marvell.com>
To: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>
CC: <davem@davemloft.net>, <edumazet@google.com>, <kuba@kernel.org>,
        <pabeni@redhat.com>, <sgoutham@marvell.com>, <lcherian@marvell.com>,
        <gakula@marvell.com>, <hkelam@marvell.com>, <naveenm@marvell.com>,
        <horms@kernel.org>, Subbaraya Sundeep <sbhatta@marvell.com>
Subject: [net PATCH 4/5] octeontx2-pf: Send UP messages to VF only when VF is up.
Date: Tue, 12 Mar 2024 00:46:51 +0530
Message-ID: <1710184612-29027-5-git-send-email-sbhatta@marvell.com>
In-Reply-To: <1710184612-29027-1-git-send-email-sbhatta@marvell.com>
References: <1710184612-29027-1-git-send-email-sbhatta@marvell.com>
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When PF sending link status messages to VF, it is possible
that by the time link_event_task work function is executed
VF might have brought down. Hence before sending VF link
status message check whether VF is up to receive it.

Fixes: ad513ed938c9 ("octeontx2-vf: Link event notification support")
Signed-off-by: Subbaraya Sundeep <sbhatta@marvell.com>
---
 drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index f85d38fab321..b40bd0e46751 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -3122,6 +3122,9 @@ static void otx2_vf_link_event_task(struct work_struct *work)
 	vf_idx = config - config->pf->vf_configs;
 	pf = config->pf;
 
+	if (config->intf_down)
+		return;
+
 	mutex_lock(&pf->mbox.lock);
 
 	dwork = &config->link_event_work;
-- 
2.17.1