MFC r299657:

Include arpa/inet.h to get the htonl(3) definition

MFC r293271:

Fix const conversion warning in lz4_decompress

Sponsored by: Multiplay

MFC r272389:

Diff reduction with kernel code: instruct the compiler that the data of
these types may be unaligned to their "normal" alignment and exercise
caution when accessing them.

PR: 194071
Approved by: re (gjb)

MFC r272389:

Diff reduction with kernel code: instruct the compiler that the data of
these types may be unaligned to their "normal" alignment and exercise
caution when accessing them.

PR: 194071
Approved by: re (gjb)