The rx SKB ring use the same code for cleanup at various points.
Combine them into a function to reduce lines of code.
Signed-off-by: NSieng Piaw Liew <liew.s.piaw@gmail.com>
Acked-by: NFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>