Revert "ipv6: constify inet6_protocol structures"

This reverts commit 3a3a4e3054137c5ff5d4d306ec834f6d25d7f95b.

inet6_add_protocol and inet6_del_protocol include casts that remove the
effect of the const annotation on their parameter, leading to possible
runtime crashes.

Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
3 files changed