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UPSTREAM: sock: Make sk_protocol a 16-bit value

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Match the 16-bit width of skbuff->protocol. Fills an 8-bit hole so
sizeof(struct sock) does not change.

Also take care of BPF field access for sk_type/sk_protocol. Both of them
are now outside the bitfield, so we can use load instructions without
further shifting/masking.

v5 -> v6:
 - update eBPF accessors, too (Intel's kbuild test robot)
v2 -> v3:
 - keep 'sk_type' 2 bytes aligned (Eric)
v1 -> v2:
 - preserve sk_pacing_shift as bit field (Eric)

Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: bpf@vger.kernel.org
Co-developed-by: Paolo Abeni <pabeni@redhat.com>
Change-Id: I4440b2bf7287331bb68ec4d7babaeb1a5015b6c0
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Co-developed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mat Martineau 2020-01-09 07:59:15 -08:00 • committed by basamaryan
commit cac1a5da93
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GPG key ID: 210D5384FB2A5885
3 changed files with 28 additions and 59 deletions
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2
include/trace/events/sock.h
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@ -149,7 +149,7 @@ TRACE_EVENT(inet_sock_set_state,
__field(__u16, sport)
__field(__u16, dport)
__field(__u16, family)
__field(__u8, protocol)
__field(__u16, protocol)
__array(__u8, saddr, 4)
__array(__u8, daddr, 4)
__array(__u8, saddr_v6, 16)