Files
linux/include/linux
Breno Leitao b5997f911e net: add sockopt_init_user() for getsockopt conversion
Add a helper that initializes a user-backed sockopt_t from the (optval,
optlen) __user pair passed to a getsockopt() callback.

It is used by transitional __user getsockopt wrappers while the
proto-layer getsockopt callbacks are converted to take a sockopt_t, and
is removed once the conversion is complete.

The goal is to help to convert leafs. Example:

 sock_common_getsockopt(... char __user *optval, int __user *optlen)
      → udp_getsockopt(sk, level, optname, optval__user, optlen__user)
               → udp_lib_getsockopt(sk, level, optname, &opt)   /* needs a sockopt_t */

Signed-off-by: Breno Leitao <leitao@debian.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Acked-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20260630-getsockopt_phase2-v2-1-193335f3d4d1@debian.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-07-02 12:29:06 +02:00
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