netdev - Re: [RFC 16/19] staging: qlge: remove deadcode in qlge_build_rx

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Date:   Tue, 22 Jun 2021 10:29:39 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Coiby Xu <coiby.xu@...il.com>
Cc:     linux-staging@...ts.linux.dev, netdev@...r.kernel.org,
        Benjamin Poirier <benjamin.poirier@...il.com>,
        Shung-Hsi Yu <shung-hsi.yu@...e.com>,
        Manish Chopra <manishc@...vell.com>,
        "supporter:QLOGIC QLGE 10Gb ETHERNET DRIVER" 
        <GR-Linux-NIC-Dev@...vell.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [RFC 16/19] staging: qlge: remove deadcode in qlge_build_rx_skb

On Mon, Jun 21, 2021 at 09:48:59PM +0800, Coiby Xu wrote:
> This part of code is for the case that "the headers and data are in
> a single large buffer". However, qlge_process_mac_split_rx_intr is for
> handling packets that packets underwent head splitting. In reality, with
> jumbo frame enabled, the part of code couldn't be reached regardless of
> the packet size when ping the NIC.
> 

This commit message is a bit confusing.  We're just deleting the else
statement.  Once I knew that then it was easy enough to review
qlge_process_mac_rx_intr() and see that if if
ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_DL is set then
ib_mac_rsp->flags4 & IB_MAC_IOCB_RSP_HV must be set.

regards,
dan carpenter