tcp: gso: really support BIG TCP
[ Upstream commit 82a01ab3 ] We missed that tcp_gso_segment() was assuming skb->len was smaller than 65535 : oldlen = (u16)~skb->len; This part came with commit 0718bcc0 ("[NET]: Fix CHECKSUM_HW GSO problems.") This leads to wrong TCP checksum. Adapt the code to accept arbitrary packet length. v2: - use two csum_add() instead of csum_fold() (Alexander Duyck) - Change delta type to __wsum to reduce casts (Alexander Duyck) Fixes: 09f3d1a3 ("ipv6/gso: remove temporary HBH/jumbo header") Signed-off-by:Eric Dumazet <edumazet@google.com> Reviewed-by:
Alexander Duyck <alexanderduyck@fb.com> Reviewed-by:
Simon Horman <simon.horman@corigine.com> Link: https://lore.kernel.org/r/20230605161647.3624428-1-edumazet@google.com Signed-off-by:
Jakub Kicinski <kuba@kernel.org> Signed-off-by:
Sasha Levin <sashal@kernel.org>
parent
251b5d68
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