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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Willem de Bruijn , Shuah Khan , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, kernel-team@meta.com Subject: Re: [PATCH net-next v2 1/4] net: add sockopt_init_user() for getsockopt conversion Message-ID: References: <20260630-getsockopt_phase2-v2-0-193335f3d4d1@debian.org> <20260630-getsockopt_phase2-v2-1-193335f3d4d1@debian.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260630-getsockopt_phase2-v2-1-193335f3d4d1@debian.org> On 06/30, Breno Leitao wrote: > 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 Acked-by: Stanislav Fomichev