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c704990207
Continue converting the proto-layer getsockopt callbacks to the sockopt_t interface, converting do_tls_getsockopt() and its per-option helpers to take a sockopt_t. The thin tls_getsockopt() wrapper keeps its __user signature for now: it builds a user-backed sockopt_t with sockopt_init_user(), calls the helper, and writes the returned length back to optlen. The helpers use copy_to_iter() instead of copy_to_user(); the NULL optval check in the TLS_TX/TLS_RX path is preserved by testing the iterator user buffer. No functional change. Reviewed-by: Sabrina Dubroca <sd@queasysnail.net> Reviewed-by: Joe Damato <joe@dama.to> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Signed-off-by: Breno Leitao <leitao@debian.org> Link: https://patch.msgid.link/20260729-getsockopt_phase4-v4-6-c44576757c17@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>