From: David Woodhouse <dwmw2@infradead.org>
To: David Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org, chas@cmf.nrl.navy.mil, krzysiek@podlesie.net
Subject: Re: [PATCH 00/17] ATM fixes for pppoatm/br2684
Date: Sun, 02 Dec 2012 08:14:00 +0000 [thread overview]
Message-ID: <1354436040.21562.386.camel@shinybook.infradead.org> (raw)
In-Reply-To: <20121201.204906.1703696018528746748.davem@davemloft.net>
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On Sat, 2012-12-01 at 20:49 -0500, David Miller wrote:
>
> I actually prefer what we do now, which is do the BUILD_BUG_ON()
> once in the subsystem specific code, usually the initializer.
>
> It's part of creating a new SKB cb, adding that assertion somewhere.
Where it's *subsystem* code that's great... but *drivers* get to use the
skb cb too. And driver authors aren't always so reliable :)
Looking just at solos-pci, there was no feedback during the initial
submission that I ought to be using a BUILD_BUG_ON to limit the size of
struct solos_skb_cb. It was just luck, really, that I remembered to do
it — as an afterthought in a later iteration of the patch.
Giving driver authors fewer ways to shoot themselves in the foot always
seems like a good idea...
--
dwmw2
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next prev parent reply other threads:[~2012-12-02 8:14 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-30 0:35 [PATCH 00/17] ATM fixes for pppoatm/br2684 David Woodhouse
2012-11-30 0:35 ` [PATCH 01/17] atm: add owner of push() callback to atmvcc David Woodhouse
2012-11-30 0:35 ` [PATCH 02/17] pppoatm: allow assign only on a connected socket David Woodhouse
2012-11-30 0:35 ` [PATCH 03/17] pppoatm: fix module_put() race David Woodhouse
2012-11-30 0:35 ` [PATCH 04/17] pppoatm: take ATM socket lock in pppoatm_send() David Woodhouse
2012-11-30 0:35 ` [PATCH 05/17] pppoatm: drop frames to not-ready vcc David Woodhouse
2012-11-30 10:27 ` Krzysztof Mazur
2012-11-30 0:35 ` [PATCH 06/17] pppoatm: do not inline pppoatm_may_send() David Woodhouse
2012-11-30 0:35 ` [PATCH 07/17] solos-pci: Wait for pending TX to complete when releasing vcc David Woodhouse
2012-12-02 0:17 ` [PATCH v2 " David Woodhouse
2012-11-30 0:35 ` [PATCH 08/17] br2684: don't send frames on not-ready vcc David Woodhouse
2012-11-30 0:35 ` [PATCH 09/17] atm: Add release_cb() callback to vcc David Woodhouse
2012-11-30 0:35 ` [PATCH 10/17] pppoatm: fix missing wakeup in pppoatm_send() David Woodhouse
2012-11-30 0:35 ` [PATCH 11/17] br2684: fix module_put() race David Woodhouse
2012-11-30 0:35 ` [PATCH 12/17] solos-pci: Fix leak of skb received for unknown vcc David Woodhouse
2012-11-30 0:35 ` [PATCH 13/17] br2684: allow assign only on a connected socket David Woodhouse
2012-11-30 0:35 ` [PATCH 14/17] pppoatm: optimise PPP channel wakeups after sock_owned_by_user() David Woodhouse
2012-11-30 0:35 ` [PATCH 15/17] solos-pci: clean up pclose() function David Woodhouse
2012-11-30 0:35 ` [PATCH 16/17] solos-pci: use GFP_KERNEL where possible, not GFP_ATOMIC David Woodhouse
2012-11-30 0:35 ` [PATCH 17/17] solos-pci: remove list_vccs() debugging function David Woodhouse
2012-11-30 10:44 ` [PATCH 00/17] ATM fixes for pppoatm/br2684 Krzysztof Mazur
2012-11-30 20:22 ` David Woodhouse
2012-12-01 16:43 ` David Miller
2012-12-01 16:44 ` David Miller
2012-12-01 16:48 ` David Woodhouse
2012-12-01 17:02 ` Chas Williams (CONTRACTOR)
2012-12-01 17:21 ` David Woodhouse
2012-12-02 1:57 ` Chas Williams (CONTRACTOR)
2012-12-02 2:17 ` David Miller
2012-12-01 17:33 ` David Woodhouse
2012-12-02 0:40 ` David Woodhouse
2012-12-02 1:49 ` David Miller
2012-12-02 8:14 ` David Woodhouse [this message]
2012-12-02 21:29 ` Checking struct size against sizeof(skb->cb) (was Re: [PATCH 00/17] ATM fixes for pppoatm/br2684) David Woodhouse
2012-12-20 14:03 ` skb->cb size checks " David Woodhouse
2012-12-02 0:35 ` [PATCH 00/17] ATM fixes for pppoatm/br2684 David Woodhouse
2012-12-02 1:47 ` David Miller
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