[U-Boot] [PATCH v0 0/4] env: reworking + default/import individual vars

[Wolfgang Denk]

Dear Gerlando Falauto,

In message <1319647072-17504-1-git-send-email-gerlando.falauto at keymile.com> you wrote:
> This is a resubmission (after removing remove checkpatch errors) of
> http://lists.denx.de/pipermail/u-boot/2011-September/102875.html
> 
> Here I am proposing a set of changes in the behaviour of the environment 
> import/set_to_default functions.
> 
> PATCH 1:
> Add a "new" himport_ex() function (reworking of himport_r which is now a 
> wrapper around it), which has 3 new arguments:
> 
> "nvars", "vars":, number and list of variables to take into account 
> (0 means ALL)
> 
> "apply" callback function which is in charge of checking whether a 
> variable can be overwritten, and possibly immediately apply the changes. 
> This parameter would be either set to NULL (in which case nothing should 
> change wrt to the past -- i.e. environment is blindly imported) or to 
> "env_check_apply()" function, whose code was taken away from _do_env_set().
> This would be useful, for instance, for "baudrate" or "stdin,stderr,stdout", 
> whose changes would not otherwise be effective until the next reboot.
> 
> The idea is that there should be a single place where all the checks are
> to be performed. So the same function env_check_apply() is called from 
> _do_env_set() as well (thus keeping the previous behavior).

Would you please also update the help messages for the respective
commands so we can see their correct (new) usage there?

Thanks.

Wolfgang Denk

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