linux-user: Use EPROTONOSUPPORT for unimplemented netlink protocols
Linux uses the EPROTONOSUPPORT error code[1] if the users requests a
netlink socket with an unsupported netlink protocol. This change
switches linux-user to use the same code as Linux, instead of
EPFNOSUPPORT (which AFAIK is just an anachronistic version of
EAFNOSUPPORT).
Tested by compiling all linux-user targets on x86.
[1]:
https://github.com/torvalds/linux/blob/
bfe91da29bfad9941d5d703d45e29f0812a20724/net/netlink/af_netlink.c#L683
Signed-off-by: Josh Kunz <jkz@google.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <
20200707001036.
1671982-1-jkz@google.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>