From 4abcce086434d536ed62ff1abdad34bb81015eee Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 6 Jan 2022 14:57:54 +0300
Subject: [PATCH 01/34] rocker: fix a sleeping in atomic bug
Git-commit: 43d012123122cc69feacab55b71369f386c19566
References: git-fixes
Patch-mainline: v5.17-rc1
This code is holding the &ofdpa->flow_tbl_lock spinlock so it is not
allowed to sleep. That means we have to pass the OFDPA_OP_FLAG_NOWAIT
flag to ofdpa_flow_tbl_del().
Fixes: 936bd486564a ("rocker: use FIB notifications instead of switchdev calls")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <denis.kirjanov@suse.com>
---
drivers/net/ethernet/rocker/rocker_ofdpa.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/rocker/rocker_ofdpa.c b/drivers/net/ethernet/rocker/rocker_ofdpa.c
index e33a9d283a4e..58861238c6b1 100644
--- a/drivers/net/ethernet/rocker/rocker_ofdpa.c
+++ b/drivers/net/ethernet/rocker/rocker_ofdpa.c
@@ -2772,7 +2772,8 @@ static void ofdpa_fib4_abort(struct rocker *rocker)
if (!ofdpa_port)
continue;
nh->fib_nh_flags &= ~RTNH_F_OFFLOAD;
- ofdpa_flow_tbl_del(ofdpa_port, OFDPA_OP_FLAG_REMOVE,
+ ofdpa_flow_tbl_del(ofdpa_port,
+ OFDPA_OP_FLAG_REMOVE | OFDPA_OP_FLAG_NOWAIT,
flow_entry);
}
spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags);
--
2.16.4