ACK: [SRU D 0/3] Fix TLS sockets partial reads

[Andrea Righi]

On Wed, Jul 22, 2020 at 04:33:59PM -0300, Thadeu Lima de Souza Cascardo wrote:
> BugLink: https://bugs.launchpad.net/bugs/1888381
> 
> tls net kernel selftests start timing out.
> 
> Kleber has identified the backport of commit 692d7b5d1f91 ("tls: Fix recvmsg()
> to be able to peek across multiple records") as the responsible for this
> regression.
> 
> It turns out this commit has 4 fixups upstream, 3 of which can be easily cherry
> picked, while the fourth one seems related to TLS 1.3 support, which is not
> included in our 5.0 kernels yet.
> 
> Picking those 3 commits allow the tests to pass without issues.
> 
> [Impact]
> Partial reads on TLS sockets will cause processes to wait indefinitively.
> 
> [Test case]
> Run tls net selftests from the kernel source tree.
> 
> [Regression potential]
> We only touch code on the TLS socket family itself, so regressions on
> subsystems other than the one we are fixing is highly unlikely.

All upstream cherry picks and it fixes the test, so it looks good to me.

Acked-by: Andrea Righi <andrea.righi at canonical.com>