Messages in this thread Patch in this message | | | From | Haiyang Zhang <> | Subject | [PATCH net-next,3/3] hv_netvsc: Add initialization of tx_table in netvsc_device_add() | Date | Fri, 13 Oct 2017 12:28:05 -0700 |
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From: Haiyang Zhang <haiyangz@microsoft.com>
tx_table is part of the private data of kernel net_device. It is only zero-ed out when allocating net_device.
We may recreate netvsc_device w/o recreating net_device, so the private netdev data, including tx_table, are not zeroed. It may contain channel numbers for the older netvsc_device.
This patch adds initialization of tx_table each time we recreate netvsc_device.
Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> --- drivers/net/hyperv/netvsc.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index d34cf37e949d..5bb6a20072dd 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -1255,6 +1255,9 @@ struct netvsc_device *netvsc_device_add(struct hv_device *device, if (!net_device) return ERR_PTR(-ENOMEM); + for (i = 0; i < VRSS_SEND_TAB_SIZE; i++) + net_device_ctx->tx_table[i] = 0; + net_device->ring_size = ring_size; /* Because the device uses NAPI, all the interrupt batching and -- 2.14.1
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