linux-kernel - Re: [PATCH] sfc: Don't use netif_info before net

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Date:   Thu, 21 Oct 2021 11:07:01 +0100
From:   Martin Habets <habetsm.xilinx@...il.com>
To:     Erik Ekman <erik@...o.se>
Cc:     Edward Cree <ecree.xilinx@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sfc: Don't use netif_info before net_device setup

On Wed, Oct 20, 2021 at 12:40:16AM +0200, Erik Ekman wrote:
> Use pci_info instead to avoid unnamed/uninitialized noise:
> 
> [197088.688729] sfc 0000:01:00.0: Solarflare NIC detected
> [197088.690333] sfc 0000:01:00.0: Part Number : SFN5122F
> [197088.729061] sfc 0000:01:00.0 (unnamed net_device) (uninitialized): no SR-IOV VFs probed
> [197088.729071] sfc 0000:01:00.0 (unnamed net_device) (uninitialized): no PTP support
> 
> Inspired by fa44821a4ddd ("sfc: don't use netif_info et al before
> net_device is registered") from Heiner Kallweit.
> 
> Signed-off-by: Erik Ekman <erik@...o.se>

Acked-by: Martin Habets <habetsm.xilinx@...il.com>

> ---
>  drivers/net/ethernet/sfc/ptp.c         | 4 ++--
>  drivers/net/ethernet/sfc/siena_sriov.c | 2 +-
>  2 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/ethernet/sfc/ptp.c b/drivers/net/ethernet/sfc/ptp.c
> index a39c5143b386..797e51802ccb 100644
> --- a/drivers/net/ethernet/sfc/ptp.c
> +++ b/drivers/net/ethernet/sfc/ptp.c
> @@ -648,7 +648,7 @@ static int efx_ptp_get_attributes(struct efx_nic *efx)
>  	} else if (rc == -EINVAL) {
>  		fmt = MC_CMD_PTP_OUT_GET_ATTRIBUTES_SECONDS_NANOSECONDS;
>  	} else if (rc == -EPERM) {
> -		netif_info(efx, probe, efx->net_dev, "no PTP support\n");
> +		pci_info(efx->pci_dev, "no PTP support\n");
>  		return rc;
>  	} else {
>  		efx_mcdi_display_error(efx, MC_CMD_PTP, sizeof(inbuf),
> @@ -824,7 +824,7 @@ static int efx_ptp_disable(struct efx_nic *efx)
>  	 * should only have been called during probe.
>  	 */
>  	if (rc == -ENOSYS || rc == -EPERM)
> -		netif_info(efx, probe, efx->net_dev, "no PTP support\n");
> +		pci_info(efx->pci_dev, "no PTP support\n");
>  	else if (rc)
>  		efx_mcdi_display_error(efx, MC_CMD_PTP,
>  				       MC_CMD_PTP_IN_DISABLE_LEN,
> diff --git a/drivers/net/ethernet/sfc/siena_sriov.c b/drivers/net/ethernet/sfc/siena_sriov.c
> index 83dcfcae3d4b..441e7f3e5375 100644
> --- a/drivers/net/ethernet/sfc/siena_sriov.c
> +++ b/drivers/net/ethernet/sfc/siena_sriov.c
> @@ -1057,7 +1057,7 @@ void efx_siena_sriov_probe(struct efx_nic *efx)
>  		return;
>  
>  	if (efx_siena_sriov_cmd(efx, false, &efx->vi_scale, &count)) {
> -		netif_info(efx, probe, efx->net_dev, "no SR-IOV VFs probed\n");
> +		pci_info(efx->pci_dev, "no SR-IOV VFs probed\n");
>  		return;
>  	}
>  	if (count > 0 && count > max_vfs)
> -- 
> 2.31.1