RE: [PATCH net,v5, 3/3] hv_netvsc: Mark VF as slave before exposing it to user-mode

From: Dexuan Cui
Date: Mon Nov 20 2023 - 14:29:09 EST


> From: LKML haiyangz <lkmlhyz@xxxxxxxxxxxxx> On Behalf Of Haiyang
> Zhang
> [...]
> From: Long Li <longli@xxxxxxxxxxxxx>
>
> When a VF is being exposed form the kernel, it should be marked as
> "slave"
> before exposing to the user-mode. The VF is not usable without netvsc
> running as master. The user-mode should never see a VF without the
> "slave"
> flag.
>
> This commit moves the code of setting the slave flag to the time before
> VF is exposed to user-mode.
>
> Cc: stable@xxxxxxxxxxxxxxx
> Fixes: 0c195567a8f6 ("netvsc: transparent VF management")
> Signed-off-by: Long Li <longli@xxxxxxxxxxxxx>
> Signed-off-by: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> ---
> v5:
> Change function name netvsc_prepare_slave() to
> netvsc_prepare_bonding().
> v4:
> Add comments in get_netvsc_byslot() explaining the need to check
> dev_addr
> v2:
> Use a new function to handle NETDEV_POST_INIT.

Acked-by: Dexuan Cui <decui@xxxxxxxxxxxxx>