tcp: add const qualifiers where possible

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Adding const qualifiers to pointers can ease code review, and spot some
bugs. It might allow compiler to optimize code further.

For example, is it legal to temporary write a null cksum into tcphdr
in tcp_md5_hash_header() ? I am afraid a sniffer could catch the
temporary null value...

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

...

This commit is contained in:

Eric Dumazet 2011-10-21 05:22:42 -04:00 • committed by David S. Miller

parent f04565ddf5

commit cf533ea53e

11 changed files with 160 additions and 152 deletions

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2

include/net/secure_seq.h

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43

include/net/tcp.h

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2

net/core/secure_seq.c

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2

net/ipv4/syncookies.c

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18

net/ipv4/tcp.c

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110

net/ipv4/tcp_input.c

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26

net/ipv4/tcp_ipv4.c

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4

net/ipv4/tcp_minisocks.c

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72

net/ipv4/tcp_output.c

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6

net/ipv6/syncookies.c

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27

net/ipv6/tcp_ipv6.c

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