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rocker: fix a sleeping in atomic bug

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[ Upstream commit 43d0121231 ]

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: 936bd48656 ("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: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dan Carpenter 2022-01-06 14:57:54 +03:00 committed by Greg Kroah-Hartman
parent 2db344725e
commit a1068bfee4
1 changed files with 2 additions and 1 deletions
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3
drivers/net/ethernet/rocker/rocker_ofdpa.c
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@ -2795,7 +2795,8 @@ static void ofdpa_fib4_abort(struct rocker *rocker)
if (!ofdpa_port) if (!ofdpa_port)
continue; continue;
nh->fib_nh_flags &= ~RTNH_F_OFFLOAD; 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); flow_entry);
} }
spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags); spin_unlock_irqrestore(&ofdpa->flow_tbl_lock, flags);