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9c99d62705
Convert AF_PACKET's getsockopt implementation to use the new getsockopt_iter callback with sockopt_t. Key changes: - Replace (char __user *optval, int __user *optlen) with sockopt_t *opt - Use opt->optlen for buffer length (input) and returned size (output) - Use copy_to_iter() instead of put_user()/copy_to_user() - For PACKET_HDRLEN which reads from optval: use opt->iter_in with copy_from_iter() for the input read, then the common opt->iter_out copy_to_iter() epilogue handles the output Signed-off-by: Breno Leitao <leitao@debian.org> Acked-by: Stanislav Fomichev <sdf@fomichev.me> Link: https://patch.msgid.link/20260408-getsockopt-v3-3-061bb9cb355d@debian.org Signed-off-by: Jakub Kicinski <kuba@kernel.org>