lkml.org 
[lkml]   [2021]   [Feb]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Kernel version numbers after 4.9.255 and 4.4.255
On Fri, Feb 05, 2021 at 07:44:12PM +0100, Pavel Machek wrote:
> Hi!
>
> > > > Ugh, I thought this was an internal representation, not an external one
> > > > :(
> > > >
> > > > > It might work somewhere, but there are a lot of (X * 65536 + Y * 256 + Z)
> > > > > assumptions all around the world. So this doesn't look like a good idea.
> > > >
> > > > Ok, so what happens if we "wrap"? What will break with that? At first
> > > > glance, I can't see anything as we keep the padding the same, and our
> > > > build scripts seem to pick the number up from the Makefile and treat it
> > > > like a string.
> > > >
> > > > It's only the crazy out-of-tree kernel stuff that wants to do minor
> > > > version checks that might go boom. And frankly, I'm not all that
> > > > concerned if they have problems :)
> > > >
> > > > So, let's leave it alone and just see what happens!
> > >
> > > Yeah, stable is a great place to do the experiments. Not that this is
> > > the first time :-(.
> >
> > How else can we "test this out"?
> >
> > Should I do an "empty" release of 4.4.256 and see if anyone complains?
>
> It seems that would be bad idea, as it would cause problems when stuff
> is compiled on 4.4.256, not simply by running it.
>
> Sasha's patch seems like one option that could work.
>
> Even safer option is to switch to 4.4.255-st1, 4.4.255-st2 ... scheme.

Using EXTRAVERSION would work, but it is effectivly the same thing as
nothing exports that to userspace through the LINUX_VERSION macro.

So clamping the version like Sasha's patches seems to be the best
solution.

thanks,

greg k-h

\
 
 \ /
  Last update: 2021-02-06 08:24    [W:0.178 / U:0.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site