[1/3] net: usb: cdc_ncm: emit dev_err on error paths

Several error paths in bind/probe code will only emit
output using dev_dbg. But if we are going to fail the
bind/probe, emit related output with "err" priority.

Signed-off-by: Grant Grundler <grundler@chromium.org>
---
 drivers/net/usb/cdc_ncm.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

+nic_swsd [adding per Realtek developer team request]

On Sat, Jan 16, 2021 at 5:26 AM Grant Grundler <grundler@chromium.org> wrote:
>
> Several error paths in bind/probe code will only emit
> output using dev_dbg. But if we are going to fail the
> bind/probe, emit related output with "err" priority.
>
> Signed-off-by: Grant Grundler <grundler@chromium.org>
> ---
>  drivers/net/usb/cdc_ncm.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
> index 5a78848db93f..25498c311551 100644
> --- a/drivers/net/usb/cdc_ncm.c
> +++ b/drivers/net/usb/cdc_ncm.c
> @@ -849,17 +849,17 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
>
>         /* check if we got everything */
>         if (!ctx->data) {
> -               dev_dbg(&intf->dev, "CDC Union missing and no IAD found\n");
> +               dev_err(&intf->dev, "CDC Union missing and no IAD found\n");
>                 goto error;
>         }
>         if (cdc_ncm_comm_intf_is_mbim(intf->cur_altsetting)) {
>                 if (!ctx->mbim_desc) {
> -                       dev_dbg(&intf->dev, "MBIM functional descriptor missing\n");
> +                       dev_err(&intf->dev, "MBIM functional descriptor missing\n");
>                         goto error;
>                 }
>         } else {
>                 if (!ctx->ether_desc || !ctx->func_desc) {
> -                       dev_dbg(&intf->dev, "NCM or ECM functional descriptors missing\n");
> +                       dev_err(&intf->dev, "NCM or ECM functional descriptors missing\n");
>                         goto error;
>                 }
>         }
> @@ -868,7 +868,7 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
>         if (ctx->data != ctx->control) {
>                 temp = usb_driver_claim_interface(driver, ctx->data, dev);
>                 if (temp) {
> -                       dev_dbg(&intf->dev, "failed to claim data intf\n");
> +                       dev_err(&intf->dev, "failed to claim data intf\n");
>                         goto error;
>                 }
>         }
> @@ -924,7 +924,7 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
>         if (ctx->ether_desc) {
>                 temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress);
>                 if (temp) {
> -                       dev_dbg(&intf->dev, "failed to get mac address\n");
> +                       dev_err(&intf->dev, "failed to get mac address\n");
>                         goto error2;
>                 }
>                 dev_info(&intf->dev, "MAC-Address: %pM\n", dev->net->dev_addr);
> --
> 2.29.2
>

+nic_swsd [adding per Realtek developer team request]

On Sat, Jan 16, 2021 at 5:27 AM Grant Grundler <grundler@chromium.org> wrote:
>

> Errors in protocol should be logged when the driver aborts operations.

> If the driver can carry on and "humor" the device, then emitting

> the message as debug output level is fine.

>

> Signed-off-by: Grant Grundler <grundler@chromium.org>

> ---

>  drivers/net/usb/usbnet.c | 2 +-

>  1 file changed, 1 insertion(+), 1 deletion(-)

>

> diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c

> index 1447da1d5729..bc7b93399bd5 100644

> --- a/drivers/net/usb/usbnet.c

> +++ b/drivers/net/usb/usbnet.c

> @@ -887,7 +887,7 @@ int usbnet_open (struct net_device *net)

>

>         // insist peer be connected

>         if (info->check_connect && (retval = info->check_connect (dev)) < 0) {

> -               netif_dbg(dev, ifup, dev->net, "can't open; %d\n", retval);

> +               netif_err(dev, ifup, dev->net, "can't open; %d\n", retval);

>                 goto done;

>         }

>

> --

> 2.29.2

>