Re: linux-next: build warnings from Linus' tree

From: Theodore Y. Ts'o
Date: Sun Aug 19 2018 - 22:54:09 EST

On Mon, Aug 20, 2018 at 03:33:19AM +0200, Adam Borowski wrote:
> Valid uses of strncpy() do exist (such as SCSI structs), but those deal with
> fixed-width fields. Thus, gcc is right for warning for at least some of
> misuse of strncpy() for C strings. The function wasn't designed for them.

The problem is that the kernel has a goodly share of fixed-width
fields. The ext4 superblock is one of them. strncpy() is the most
convenient function to do what is needed. If it's a valid use, then
we need to have a way to get gcc to shut up about them.

- Ted