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[34.48.33.21]) by smtp.gmail.com with UTF8SMTPSA id d75a77b69052e-4cbc4ff4e84sm19850741cf.42.2025.09.22.12.40.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Sep 2025 12:40:06 -0700 (PDT) Date: Mon, 22 Sep 2025 15:40:06 -0400 From: Willem de Bruijn To: Richard Gobert , netdev@vger.kernel.org, pabeni@redhat.com, ecree.xilinx@gmail.com, willemdebruijn.kernel@gmail.com Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, horms@kernel.org, corbet@lwn.net, saeedm@nvidia.com, tariqt@nvidia.com, mbloch@nvidia.com, leon@kernel.org, dsahern@kernel.org, ncardwell@google.com, kuniyu@google.com, shuah@kernel.org, sdf@fomichev.me, aleksander.lobakin@intel.com, florian.fainelli@broadcom.com, alexander.duyck@gmail.com, linux-kernel@vger.kernel.org, linux-net-drivers@amd.com, Richard Gobert Message-ID: In-Reply-To: <20250922084103.4764-5-richardbgobert@gmail.com> References: <20250922084103.4764-1-richardbgobert@gmail.com> <20250922084103.4764-5-richardbgobert@gmail.com> Subject: Re: [PATCH net-next v7 4/5] net: gro: remove unnecessary df checks 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-Transfer-Encoding: 7bit Richard Gobert wrote: > Currently, packets with fixed IDs will be merged only if their > don't-fragment bit is set. This restriction is unnecessary since > packets without the don't-fragment bit will be forwarded as-is even > if they were merged together. The merged packets will be segmented > into their original forms before being forwarded, either by GSO or > by TSO. The IDs will also remain identical unless NETIF_F_TSO_MANGLEID > is set, in which case the IDs can become incrementing, which is also fine. > > Clean up the code by removing the unnecessary don't-fragment checks. > > Signed-off-by: Richard Gobert Reviewed-by: Willem de Bruijn