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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Bobby Eshleman , Pavel Begunkov , Ralf Lici , Will Deacon , Stanislav Fomichev , Bobby Eshleman Subject: Re: [PATCH net-next v2] net: devmem: return EMSGSIZE on type mismatch Message-ID: References: <20260810201213.2708375-1-almasrymina@google.com> 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 In-Reply-To: <20260810201213.2708375-1-almasrymina@google.com> On 08/10, Mina Almasry wrote: > When a devmem payload mixes with a standard page payload, return > -EMSGSIZE instead of -EFAULT. This enables tcp_sendmsg to seamlessly > fall back to creating a new segment instead of failing the socket send. > > Fixes: bd61848900bff ("net: devmem: Implement TX path") > Cc: Pavel Begunkov > Cc: Stanislav Fomichev > Cc: Bobby Eshleman > Signed-off-by: Mina Almasry > Reviewed-by: Pavel Begunkov > Reviewed-by: Bobby Eshleman Acked-by: Stanislav Fomichev (matches my original suggestion on https://lore.kernel.org/netdev/ameLB_goNrMbscXO@devvm7509.cco0.facebook.com/)