On Mon, Jul 27, 2020 at 06:15:55PM +0200, Christoph Hellwig wrote:

I have to admit I didn't spot the difference between the good and the
bad output even after trying hard..

But can you try the patch below?

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From cce2d2e1b43ecee5f4af7cf116808b74b330080f Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 27 Jul 2020 17:42:27 +0200
Subject: net: remove sockptr_advance

sockptr_advance never properly worked.  Replace it with _offset variants
of copy_from_sockptr and copy_to_sockptr.

Fixes: ba423fdaa589 ("net: add a new sockptr_t type")
Reported-by: Jason A. Donenfeld <Jason@zx2c4.com>
Reported-by: Ido Schimmel <redacted>
Signed-off-by: Christoph Hellwig <hch@lst.de>

Tested-by: Ido Schimmel <redacted>

Thanks!