commit 3d05b8ae upstream.

This reverts commit 2772f0ef.
It turns out that we want to implement the spinlock code differently.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # v5.7+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>