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Date:   Mon, 14 Aug 2017 21:06:53 +0000
From:   Tom Talpey <ttalpey@...rosoft.com>
To:     Long Li <longli@...rosoft.com>, Steve French <sfrench@...ba.org>,
        "linux-cifs@...r.kernel.org" <linux-cifs@...r.kernel.org>,
        "samba-technical@...ts.samba.org" <samba-technical@...ts.samba.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [[PATCH v1] 24/37] [CIFS] SMBD: Support for SMBD keep alive
 protocol

> -----Original Message-----
> From: linux-cifs-owner@...r.kernel.org [mailto:linux-cifs-
> owner@...r.kernel.org] On Behalf Of Long Li
> Sent: Wednesday, August 2, 2017 4:11 PM
> To: Steve French <sfrench@...ba.org>; linux-cifs@...r.kernel.org; samba-
> technical@...ts.samba.org; linux-kernel@...r.kernel.org
> Cc: Long Li <longli@...rosoft.com>
> Subject: [[PATCH v1] 24/37] [CIFS] SMBD: Support for SMBD keep alive
> protocol
> 
> SMBD uses a keep alive protocol to help peers detect if the remote is dead.
> When peer request keep alive, the transport needs to respond accordingly.

The keepalive exchange is also used to replenish credits in certain
pathological conditions.

> +               // send an emtpy response right away if requested
> +               if (le16_to_cpu(data_transfer->flags) |
> +                               le16_to_cpu(SMB_DIRECT_RESPONSE_REQUESTED)) {
> +                       info->keep_alive_requested = KEEP_ALIVE_PENDING;
> +               }

This is clearly a typo, the condition is always true. "&"??

Tom.

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