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multipath-tcp / mptcp

⚠️⚠️⚠️ Deprecated 🚫 Out-of-tree Linux Kernel implementation of MultiPath TCP. 👉 Use https://github.com/multipath-tcp/mptcp_net-next repo instead ⚠️⚠️⚠️
https://github.com/multipath-tcp/mptcp_net-next
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mptcp sk_buff->cb size problem #325

Closed vmsearch closed 5 years ago

vmsearch commented 5 years ago

when i back port the mptcp patch to 3.10.0 kernel，i get the error like this: arch/x86/net/bpf_jit_comp.c:224:46: error: large integer implicitly truncated to unsigned type [-Werror=overflow

the problem code: EMIT4(0x4c, 0x8b, 0x47, offsetof(struct sk_buff, data));

how can i fix it?

cpaasch commented 5 years ago

You should take the patch from http://multipath-tcp.org/patches/ that is closest to the Linux Kernel version you want to apply it to.

But in general, I would not recommend backporting to such an old kernel.