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We already have copy_struct_from_sockptr() as wrapper to copy_struct_from_user() or copy_struct_from_bounce_buffer(), so it's good to have copy_struct_to_sockptr() as well matching the behavior of copy_struct_to_user() or copy_struct_to_bounce_buffer(). The world would be better without sockptr_t, but having copy_struct_to_sockptr() is better than open code it in various places. I'll use this in my IPPROTO_SMBDIRECT work, but maybe it will also be useful for others... IPPROTO_QUIC will likely also use it. Cc: Dmitry Safonov <0x7f454c46@gmail.com> Cc: Dmitry Safonov <dima@arista.com> Cc: Francesco Ruggeri <fruggeri@arista.com> Cc: Salam Noureddine <noureddine@arista.com> Cc: David Ahern <dsahern@kernel.org> Cc: David S. Miller <davem@davemloft.net> Cc: Michal Luczaj <mhal@rbox.co> Cc: David Wei <dw@davidwei.uk> Cc: Luiz Augusto von Dentz <luiz.von.dentz@intel.com> Cc: Luiz Augusto von Dentz <luiz.dentz@gmail.com> Cc: Marcel Holtmann <marcel@holtmann.org> Cc: Xin Long <lucien.xin@gmail.com> Cc: Eric Dumazet <edumazet@google.com> Cc: Kuniyuki Iwashima <kuniyu@google.com> Cc: Paolo Abeni <pabeni@redhat.com> Cc: Willem de Bruijn <willemb@google.com> Cc: Neal Cardwell <ncardwell@google.com> Cc: Jakub Kicinski <kuba@kernel.org> Cc: Simon Horman <horms@kernel.org> Cc: Aleksa Sarai <cyphar@cyphar.com> Cc: Christian Brauner <brauner@kernel.org> CC: Kees Cook <keescook@chromium.org> Cc: netdev@vger.kernel.org Cc: linux-bluetooth@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Stefan Metzmacher <metze@samba.org> Link: https://patch.msgid.link/c950ee1578cb93b4411c3731010def9c1cd82f0d.1775576651.git.metze@samba.org Signed-off-by: Christian Brauner <brauner@kernel.org>