On Tue, Jul 15, 2014 at 11:27:45PM +0200, Thomas Monjalon wrote: > 2014-07-14 09:46, John W. Linville: > > On Sat, Jul 12, 2014 at 12:34:46AM +0200, Thomas Monjalon wrote: > > > 2014-07-11 13:40, John W. Linville: > > > > Is there an example of code in DPDK that requires specific kernel > > > > versions? What is the preferred method for coding such dependencies? > > > > > > No there is no userspace code checking kernel version in DPDK. > > > Feel free to use what you think the best method. > > > Please keep in mind that checking version number is a maintenance > > > nightmare > > > because of backports (like RedHat do ;). > > Actually, I feel the need to correct this (I know you're being humorous, but just the same). You don't have a maintenence nightmare on your hands because RedHat backports kernel features, you have a nightmare maintenece situation on your hands because the DPDK uses kernel features that were never meant to be directly accessed outside of kernel space. Neil
> > I suppose that it could be a configuration option? > > If there is no other way to configure kernel-dependent features, we can add > options. But I feel that relying on a macro (#ifdef) would be better if such > macro exist. > > -- > Thomas >
