On Thu, Jul 22, 2021 at 04:29:01PM +0200, Arnd Bergmann wrote:

From: Arnd Bergmann <arnd@arndb.de>

Since dynamic registration of the gifconf() helper is only used for
IPv4, and this can not be in a loadable module, this can be simplified
noticeably by turning it into a direct function call as a preparation
for cleaning up the compat handling.

I'd maybe mention that ipv4 must be built-in as that is the bit
required for all the above to make sense.

Otherwise looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>