@yinheli what is the problem? Do you have any program that fails to compile due to this?

The constant itself is ok, because it is an untyped integer instead of int.

@cherrymui I'm using github.com/songgao/water to create tun device on mips (openwrt), go build reports:

vendor/github.com/songgao/water/syscalls_linux.go:73: constant 2147767498 overflows int
vendor/github.com/songgao/water/syscalls_linux.go:88: constant 2147767500 overflows int
vendor/github.com/songgao/water/syscalls_linux.go:93: constant 2147767502 overflows int
vendor/github.com/songgao/water/syscalls_linux.go:103: constant 2147767499 overflows int

env:

go version : 1.8.3

build env
GOOS=linux GOARCH=mips

https://github.com/songgao/water/blob/6b639456fceabd469cc76f5f4cec653b0cb7ce14/syscalls_linux.go#L86

You mean i have to convert the constant value to uint ?
thanks, i'll try to and do some tests

It should normally work to change the request parameter of ioctl to be uint. That's how the implementations in golang.org/x/sys/unix work.

Closing because I don't think there is anything to change in the main Go repo.