diff options
| author | Finn Thain <fthain@telegraphics.com.au> | 2020-01-23 09:07:26 +1100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-05 13:03:44 +0000 |
| commit | 6425373e5397630b8a7672b9bf2b1acad241dd54 (patch) | |
| tree | e4386e4475b3b1fbd3cb2c36b9020c1783ab90fe /net/ipv4/tcp_input.c | |
| parent | c2f59355e72aa1eccfe779930d804fac32a7489b (diff) | |
net/sonic: Add mutual exclusion for accessing shared state
[ Upstream commit 865ad2f2201dc18685ba2686f13217f8b3a9c52c ]
The netif_stop_queue() call in sonic_send_packet() races with the
netif_wake_queue() call in sonic_interrupt(). This causes issues
like "NETDEV WATCHDOG: eth0 (macsonic): transmit queue 0 timed out".
Fix this by disabling interrupts when accessing tx_skb[] and next_tx.
Update a comment to clarify the synchronization properties.
Fixes: efcce839360f ("[PATCH] macsonic/jazzsonic network drivers update")
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_input.c')
0 files changed, 0 insertions, 0 deletions