Re: [PATCH net] rxrpc: Fix clearance of Tx/Rx ring when releasing a call

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Wed, 03 Feb 2021 08:47:56 +0000 you wrote:

At the end of rxrpc_release_call(), rxrpc_cleanup_ring() is called to clear
the Rx/Tx skbuff ring, but this doesn't lock the ring whilst it's accessing
it.  Unfortunately, rxrpc_resend() might be trying to retransmit a packet
concurrently with this - and whilst it does lock the ring, this isn't
protection against rxrpc_cleanup_call().

Fix this by removing the call to rxrpc_cleanup_ring() from
rxrpc_release_call().  rxrpc_cleanup_ring() will be called again anyway
from rxrpc_cleanup_call().  The earlier call is just an optimisation to
recycle skbuffs more quickly.

[...]

Here is the summary with links:
  - [net] rxrpc: Fix clearance of Tx/Rx ring when releasing a call
    https://git.kernel.org/netdev/net/c/7b5eab57cac4

You are awesome, thank you!
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