Re: [PATCH] ath10k: do not warn about unsupported vdev param

[Kalle Valo <kvalo@qca.qualcomm.com>]

Bartosz Markowski <bartosz.markowski@tieto.com> writes:

> 10.X firmware does not support WMI_VDEV_PARAM_TX_ENCAP_TYPE.
> It's a known limitation and we should not warn about this.
>
> Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
> ---
>  drivers/net/wireless/ath/ath10k/mac.c |    4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
> index 049eca2..9c800f8 100644
> --- a/drivers/net/wireless/ath/ath10k/mac.c
> +++ b/drivers/net/wireless/ath/ath10k/mac.c
> @@ -2085,7 +2085,9 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
>  	vdev_param = ar->wmi.vdev_param->tx_encap_type;
>  	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
>  					ATH10K_HW_TXRX_NATIVE_WIFI);
> -	if (ret)
> +
> +	/* 10.X firmware does not support this VDEV parameter. Do not warn */
> +	if (ret && !test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
>  		ath10k_warn("Failed to set TX encap: %d\n", ret);

But why call ath10k_wmi_vdev_set_param() even if we know it won't work?
IMHO it's cleaner not to call it at all when ATH10K_FW_FEATURE_WMI_10X
is set.

Or if we want to avoid using ATH10K_FW_FEATURE_WMI_10X we could also
change ath10k_wmi_pdev_set_param() to return -EOPNOTSUPP and check for
that.

-- 
Kalle Valo