Re: Appending '+' to version, since 2.6.35-rc2

From: Alexey Dobriyan
Date: Mon Jun 14 2010 - 02:52:31 EST


On Sun, Jun 13, 2010 at 08:01:26PM +0100, Mark Hills wrote:
> Commit 85a256d adds a new feature:
>
> [...] When CONFIG_LOCALVERSION_AUTO is not enabled, a `+' is appended
> to the kernel version to represent that the kernel has been revised
> since the last release unless "make LOCALVERSION=" was used to uniquely
> identify the build.
>
> I'm finding this inconvenient for 'casual' kernel development.
>
> For example, my usual workflow goes something like:
>
> 1) find something I suspect is a bug
> 2) upgrade to the latest stable or -rc kernel, to confirm
> 3) experiment with patch to fix it
>
> Since 2.6.35-rc2, going from step 2 to 3 causes the version of the kernel
> to change: forcing time-consuming rebuilds,

init/version.c
kernel/configs.c
+ whatever patch has changed
+ vmlinux 2 or 3 times

That's not time consuming.

> installing modules, and manual
> changes associated with a new version number; eg. updating the lilo/grub
> config, or the distribution's initrd.
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