Re: [PATCH 21/30] sfc: Add missing annotation for efx_ef10_try_update_nic_stats_vf()

From: Martin Habets
Date: Mon Feb 17 2020 - 13:01:00 EST


On 14/02/2020 20:47, Jules Irenge wrote:
> Sparse reports a warning at efx_ef10_try_update_nic_stats_vf()
>
> warning: context imbalance in efx_ef10_try_update_nic_stats_vf()
> - unexpected unlock
>
> The root cause is the missing annotation at
> efx_ef10_try_update_nic_stats_vf()
> Add the missing __must_hold(&efx->stats_lock) annotattion
>
> Signed-off-by: Jules Irenge <jbi.octave@xxxxxxxxx>

Thanks

Acked-by: Martin Habets <mhabets@xxxxxxxxxxxxxx>

> ---
> drivers/net/ethernet/sfc/ef10.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
> index 52113b7529d6..b1102c7e814d 100644
> --- a/drivers/net/ethernet/sfc/ef10.c
> +++ b/drivers/net/ethernet/sfc/ef10.c
> @@ -1820,6 +1820,7 @@ static size_t efx_ef10_update_stats_pf(struct efx_nic *efx, u64 *full_stats,
> }
>
> static int efx_ef10_try_update_nic_stats_vf(struct efx_nic *efx)
> + __must_hold(&efx->stats_lock)
> {
> MCDI_DECLARE_BUF(inbuf, MC_CMD_MAC_STATS_IN_LEN);
> struct efx_ef10_nic_data *nic_data = efx->nic_data;
>