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Message-Id: <20210329075610.070177031@linuxfoundation.org>
Date: Mon, 29 Mar 2021 09:58:16 +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, Dylan Hung <dylan_hung@...eedtech.com>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Joel Stanley <joel@....id.au>,
"David S. Miller" <davem@...emloft.net>,
Sasha Levin <sashal@...nel.org>
Subject: [PATCH 4.14 36/59] ftgmac100: Restart MAC HW once
From: Dylan Hung <dylan_hung@...eedtech.com>
[ Upstream commit 6897087323a2fde46df32917462750c069668b2f ]
The interrupt handler may set the flag to reset the mac in the future,
but that flag is not cleared once the reset has occurred.
Fixes: 10cbd6407609 ("ftgmac100: Rework NAPI & interrupts handling")
Signed-off-by: Dylan Hung <dylan_hung@...eedtech.com>
Acked-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Reviewed-by: Joel Stanley <joel@....id.au>
Signed-off-by: Joel Stanley <joel@....id.au>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
drivers/net/ethernet/faraday/ftgmac100.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index b28425f4cfac..f35c5dbe54ee 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1328,6 +1328,7 @@ static int ftgmac100_poll(struct napi_struct *napi, int budget)
*/
if (unlikely(priv->need_mac_restart)) {
ftgmac100_start_hw(priv);
+ priv->need_mac_restart = false;
/* Re-enable "bad" interrupts */
iowrite32(FTGMAC100_INT_BAD,
--
2.30.1
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