netdev - Re: [PATCH] bnx2: Use dev_kfree_skb_any() in bnx2_tx

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Message-ID: <CAM_iQpV6ufX5-OOrNQtsXH0_9itjU-FriOoutyKfDEWdg-irQw@mail.gmail.com>
Date:	Wed, 30 Oct 2013 12:23:52 -0700
From:	Cong Wang <xiyou.wangcong@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	tdmackey@...leanhaiku.com, mchan@...adcom.com,
	Linux Kernel Network Developers <netdev@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] bnx2: Use dev_kfree_skb_any() in bnx2_tx_int()

On Tue, Oct 29, 2013 at 11:40 PM, David Miller <davem@...emloft.net> wrote:
> From: Cong Wang <xiyou.wangcong@...il.com>
> Date: Tue, 29 Oct 2013 20:50:08 -0700
>
>> Normally ->poll() is called in softirq context, while netpoll could
>> be called in any context depending on its caller.
>
> It still makes amends to make the execution context still looks
> "compatible" as far as locking et al. is concerned.

Adjusting netpoll code for IRQ context is much harder
than just calling dev_kfree_skb_any()...

What's more, we have similar change before:

commit ed79bab847d8e5a2986d8ff43c49c6fb8ee3265f
Author: Eric Dumazet <eric.dumazet@...il.com>
Date:   Wed Oct 14 14:36:43 2009 +0000

    virtio_net: use dev_kfree_skb_any() in free_old_xmit_skbs()
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