Continue the work to convert protocols to the new getsockopt_iter API. Convert four additional getsockopt implementations to the new sockopt_t/getsockopt_iter callback:
- MCTP - LLC - X.25 - KCM These are mechanical, ABI-preserving conversions following the same pattern as the previously converted protocols (af_packet, can/raw, af_netlink, af_vsock): the (char __user *optval, int __user *optlen) pair is replaced with a single sockopt_t *opt that carries the buffer length on input and the returned size on output, and exposes an iov_iter for the copy-out path. put_user()/copy_to_user() pairs are replaced with a single copy_to_iter() per option, and the wrapper in do_sock_getsockopt() handles writing optlen back to userspace. I picked these four because each is small and self-contained. Signed-off-by: Breno Leitao <[email protected]> --- Changes in v2: - Fix kdoc as suggested by Jakub. - Drop the CAN patches; they will be sent separately through the linux-can tree. - Add X.25 and KCM conversions, keeping the series at four protocols. - Link to v1: https://patch.msgid.link/[email protected] --- Breno Leitao (5): mctp: convert to getsockopt_iter llc: convert to getsockopt_iter x25: convert to getsockopt_iter kcm: convert to getsockopt_iter selftests: net: getsockopt_iter: cleanup net/kcm/kcmsock.c | 16 ++-- net/llc/af_llc.c | 18 ++--- net/mctp/af_mctp.c | 10 +-- net/x25/af_x25.c | 16 ++-- tools/testing/selftests/net/getsockopt_iter.c | 109 +++++++++++++++++++++++--- 5 files changed, 124 insertions(+), 45 deletions(-) --- base-commit: c1e5127b577c6b88fa48e532616932ae978528d5 change-id: 20260505-getsock_two-abad19643336 Best regards, -- Breno Leitao <[email protected]>
