[Oneiric,SRU,1/2] xhci: Remove scary warnings about transfer issues.

From: Sarah Sharp <sarah.a.sharp@linux.intel.com>

BugLink: http://bugs.launchpad.net/bugs/929656

Getting a short packet or a babble error is usually a recoverable error,
so stop scaring users with warnings in dmesg when xHCI debugging is turned
off.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
(cherry picked from commit 2a9227a5eeaeb3f91e3a72ceea4fa59016ca5d20)

Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com>
---
 drivers/usb/host/xhci-ring.c |    7 +++----
 1 files changed, 3 insertions(+), 4 deletions(-)

On 02/09/2012 12:46 PM, leann.ogasawara@canonical.com wrote:
> From: Sarah Sharp<sarah.a.sharp@linux.intel.com>
>
> BugLink: http://bugs.launchpad.net/bugs/929656
>
> Getting a short packet or a babble error is usually a recoverable error,
> so stop scaring users with warnings in dmesg when xHCI debugging is turned
> off.
>
> Signed-off-by: Sarah Sharp<sarah.a.sharp@linux.intel.com>
> (cherry picked from commit 2a9227a5eeaeb3f91e3a72ceea4fa59016ca5d20)
>
> Signed-off-by: Leann Ogasawara<leann.ogasawara@canonical.com>
> ---
>   drivers/usb/host/xhci-ring.c |    7 +++----
>   1 files changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
> index edcedc4..8c8888f 100644
> --- a/drivers/usb/host/xhci-ring.c
> +++ b/drivers/usb/host/xhci-ring.c
> @@ -1648,7 +1648,6 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
>   		}
>   		break;
>   	case COMP_SHORT_TX:
> -		xhci_warn(xhci, "WARN: short transfer on control ep\n");
>   		if (td->urb->transfer_flags&  URB_SHORT_NOT_OK)
>   			*status = -EREMOTEIO;
>   		else
> @@ -1994,7 +1993,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
>   		xhci_dbg(xhci, "Stopped on No-op or Link TRB\n");
>   		break;
>   	case COMP_STALL:
> -		xhci_warn(xhci, "WARN: Stalled endpoint\n");
> +		xhci_dbg(xhci, "Stalled endpoint\n");
>   		ep->ep_state |= EP_HALTED;
>   		status = -EPIPE;
>   		break;
> @@ -2004,11 +2003,11 @@ static int handle_tx_event(struct xhci_hcd *xhci,
>   		break;
>   	case COMP_SPLIT_ERR:
>   	case COMP_TX_ERR:
> -		xhci_warn(xhci, "WARN: transfer error on endpoint\n");
> +		xhci_dbg(xhci, "Transfer error on endpoint\n");
>   		status = -EPROTO;
>   		break;
>   	case COMP_BABBLE:
> -		xhci_warn(xhci, "WARN: babble error on endpoint\n");
> +		xhci_dbg(xhci, "Babble error on endpoint\n");
>   		status = -EOVERFLOW;
>   		break;
>   	case COMP_DB_ERR:

On 09/02/12 20:46, leann.ogasawara@canonical.com wrote:
> From: Sarah Sharp<sarah.a.sharp@linux.intel.com>
>
> BugLink: http://bugs.launchpad.net/bugs/929656
>
> Getting a short packet or a babble error is usually a recoverable error,
> so stop scaring users with warnings in dmesg when xHCI debugging is turned
> off.
>
> Signed-off-by: Sarah Sharp<sarah.a.sharp@linux.intel.com>
> (cherry picked from commit 2a9227a5eeaeb3f91e3a72ceea4fa59016ca5d20)
>
> Signed-off-by: Leann Ogasawara<leann.ogasawara@canonical.com>
> ---
>   drivers/usb/host/xhci-ring.c |    7 +++----
>   1 files changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
> index edcedc4..8c8888f 100644
> --- a/drivers/usb/host/xhci-ring.c
> +++ b/drivers/usb/host/xhci-ring.c
> @@ -1648,7 +1648,6 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
>   		}
>   		break;
>   	case COMP_SHORT_TX:
> -		xhci_warn(xhci, "WARN: short transfer on control ep\n");
>   		if (td->urb->transfer_flags&  URB_SHORT_NOT_OK)
>   			*status = -EREMOTEIO;
>   		else
> @@ -1994,7 +1993,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
>   		xhci_dbg(xhci, "Stopped on No-op or Link TRB\n");
>   		break;
>   	case COMP_STALL:
> -		xhci_warn(xhci, "WARN: Stalled endpoint\n");
> +		xhci_dbg(xhci, "Stalled endpoint\n");
>   		ep->ep_state |= EP_HALTED;
>   		status = -EPIPE;
>   		break;
> @@ -2004,11 +2003,11 @@ static int handle_tx_event(struct xhci_hcd *xhci,
>   		break;
>   	case COMP_SPLIT_ERR:
>   	case COMP_TX_ERR:
> -		xhci_warn(xhci, "WARN: transfer error on endpoint\n");
> +		xhci_dbg(xhci, "Transfer error on endpoint\n");
>   		status = -EPROTO;
>   		break;
>   	case COMP_BABBLE:
> -		xhci_warn(xhci, "WARN: babble error on endpoint\n");
> +		xhci_dbg(xhci, "Babble error on endpoint\n");
>   		status = -EOVERFLOW;
>   		break;
>   	case COMP_DB_ERR:

Acked-by: Colin King <colin.king@canonical.com>