netdev - Re: [PATCH net v2] xfrm: Fix crash observed during device unregistration and decryption

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Message-ID: <20160323132947.GA29938@gondor.apana.org.au>
Date:	Wed, 23 Mar 2016 21:29:47 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Subash Abhinov Kasiviswanathan <subashab@...eaurora.org>,
	'Steffen Klassert' <steffen.klassert@...unet.com>,
	netdev@...r.kernel.org, jeromes@...eaurora.org
Subject: Re: [PATCH net v2] xfrm: Fix crash observed during device
 unregistration and decryption

On Wed, Mar 23, 2016 at 06:25:47AM -0700, Eric Dumazet wrote:
>
> Wont this prevent device from being dismantled ?

This is only held while the crypto processing is ongoing.

> Where is this xfrm queue purged at device dismantle ?

There is no way to cancel an ongoing crypto processing so you'll
just have to wait it out.

Cheers,
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt