Re: [PATCH net-next v3 2/2] 8021q: publish vlan_devices_arrays entries with acquire/release

[Kuniyuki Iwashima]

On Wed, Sep 2, 2026 at 12:32 AM Jinjie Ruan <ruanjinjie@xxxxxxxxxx> wrote:
>
> Replace the smp_wmb()/smp_rmb() barrier pair with
> smp_store_release()/smp_load_acquire() on
> vg->vlan_devices_arrays[pidx][vidx].
>
> vlan_group_prealloc_vid() publishes the array pointer via release;
> __vlan_group_get_device() acquires it before accessing the array,
> ensuring the allocated entries are visible.
>
> No functional change intended.
>
> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> Cc: Eric Dumazet <edumazet@xxxxxxxxxx>
> Cc: Jakub Kicinski <kuba@xxxxxxxxxx>
> Cc: Paolo Abeni <pabeni@xxxxxxxxxx>
> Cc: Simon Horman <horms@xxxxxxxxxx>
> Cc: Nicolai Buchwitz <nb@xxxxxxxxxxx>
> Cc: Stanislav Fomichev <sdf@xxxxxxxxxxx>
> Cc: Hangbin Liu <liuhangbin@xxxxxxxxx>
> Cc: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>
> Assisted-by: DeepSeek:DeepSeek-V3
> Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>

Reviewed-by: Kuniyuki Iwashima <kuniyu@xxxxxxxxxx>