Re: Linux 4.4.256

[Willy Tarreau]

On Sat, Feb 06, 2021 at 02:00:27PM +0100, Greg Kroah-Hartman wrote:
> I think Sasha's patch here:
> 	https://lore.kernel.org/r/20210205174702.1904681-1-sashal@xxxxxxxxxx
> is looking like the solution.

It might cause trouble to those forcing SUBLEVEL to a given version such
as .0 to avoid exposing the exact stable version. I guess we should
instead try to integrate a test on the value itself and cap it at 255.

Something like this looks more robust to me, it will use SUBLEVEL for
values 0 to 255 and 255 for any larger value:

-	expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 0$(SUBLEVEL)); \
+	expr $(VERSION) \* 65536 + 0$(PATCHLEVEL) \* 256 + 255 \* (0$(SUBLEVEL) > 255) + 0$(SUBLEVEL) * (0$(SUBLEVEL \<= 255)); \

Willy