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ivshmem-net: Mark vring_used_event access READ_ONCE 

Analogously to vring_avail_event in ivshm_net_notify_tx.

Acked-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
5.4-rM2-2.2.x-imx-squashed
Jan Kiszka 2020-03-09 09:26:09 +01:00 committed by Peng Fan
parent ddf1fb2984
commit b4f51dd09c
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ivshmem-net.c
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@ -235,7 +235,7 @@ static void ivshm_net_notify_rx(struct ivshm_net *in, unsigned int num)
virt_mb();
evt = vring_used_event(&in->rx.vr);
evt = READ_ONCE(vring_used_event(&in->rx.vr));
old = in->rx.last_used_idx - num;
new = in->rx.last_used_idx;