diff options
| author | Haiyang Zhang <haiyangz@microsoft.com> | 2019-03-28 19:40:36 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-17 08:38:39 +0200 |
| commit | 9a7c4f5acc0e1f2fafa6867af639a4ebbe1fc69c (patch) | |
| tree | 72d5f39a03b867b1afc9e435b9232c0b83c9ef92 /include/linux/processor.h | |
| parent | 902eca1a0ccfd2661106731db3a74b2304f31217 (diff) | |
hv_netvsc: Fix unwanted wakeup after tx_disable
[ Upstream commit 1b704c4a1ba95574832e730f23817b651db2aa59 ]
After queue stopped, the wakeup mechanism may wake it up again
when ring buffer usage is lower than a threshold. This may cause
send path panic on NULL pointer when we stopped all tx queues in
netvsc_detach and start removing the netvsc device.
This patch fix it by adding a tx_disable flag to prevent unwanted
queue wakeup.
Fixes: 7b2ee50c0cd5 ("hv_netvsc: common detach logic")
Reported-by: Mohammed Gamal <mgamal@redhat.com>
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux/processor.h')
0 files changed, 0 insertions, 0 deletions