Re: [RFC PATCH 3/5] linux-kernel-base: add support for Linux 3.x

[Anders Darander <anders.darander@gmail.com>]

On Tue, Jun 21, 2011 at 20:45, Phil Blundell <pb@pbcl.net> wrote:
> On Tue, 2011-06-21 at 20:18 +0200, Anders Darander wrote:
>> Return 2.X as major version for kernels 2.X, and return
>> X for kernels X.Y (X>=3).
>
> I'm not quite sure I understand what this particular logic is useful
> for.  If we're removing 2.4 support (which I'm fairly relaxed about)
> then it seems as though this whole "kernel_majorversion" thing can and
> should just go away.

If we should remove the kernel_majorversion, we'll have to double check that
this isn't used somewhere else. If it isn't, I'm all in favor of removing it.

> Or, alternatively, perhaps it should be mapped into a more abstract kind
> of "kernel epoch" thing which treats 2.6 and 3.0 as basically the same.

If we keep the kernel_majorversion, we'll need to have something
similar to this,
as the major version up to 2.6 was determined by X.Y. From 3.0, only the first
digit represents the major number; while the second digit (0 in 3.0)
is equal to
x in 2.6.x. Thus, the function to determine the major version has to
return either
2.6 or 3.

Regards,
Anders