Subject: Re: [PATCH iproute2] iproute2: Fix undeclared __kernel_long_t type build error in RHEL 6.8

From: Stephen Hemminger <[email-masked]>
Date: Fri, 1 Dec 2017 08:48:07 -0800

On Fri,  1 Dec 2017 13:04:51 +0200
Leon Romanovsky <[email-masked]> wrote:

> From: Leon Romanovsky <[email-masked]>
> 
> Add asm/posix_types.h header file to the list of needed includes,
> because the headers files in RHEL 6.8 are too old and doesn't
> have declaration of __kernel_long_t.
> 
> In file included from ../include/uapi/linux/kernel.h:5,
>                  from ../include/uapi/linux/netfilter/x_tables.h:4,
>                  from ../include/xtables.h:20,
>                  from em_ipset.c:26:
> ../include/uapi/linux/sysinfo.h:9: error: expected specifier-qualifier-list before ‘__kernel_long_t’
> 
> Cc: Riad Abo Raed <[email-masked]>
> Cc: Guy Ergas <[email-masked]>
> Signed-off-by: Leon Romanovsky <[email-masked]>

I see the problem, but the solution of dragging in posix_types.h
would be too much of a long term maintenance issue.
All the headers in uapi are regularly generated from upstream
kernel headers; I don't want to start making exceptions.

Is it just the xtables stuff (which has always been problematic)?