[PATCH] test: efi_selftest: Do not force serial# setting

Tom Rini trini at konsulko.com
Fri Aug 7 21:50:02 CEST 2020

On Fri, Aug 07, 2020 at 09:34:06PM +0200, Heinrich Schuchardt wrote:

> On 7/31/20 11:42 PM, Tom Rini wrote:
> > On Fri, Jul 31, 2020 at 10:12:32AM -0400, Tom Rini wrote:
> >
> >> As part of the EFI self test we set and check the serial# variable.
> >> However, we should not be forcing this setting.  In the case where we
> >> are allowed to change the variable it will change, and we will pass the
> >> test.  In the case where we cannot change it, force may or may not be
> >> allowed, depending on further environment restrictions.  Drop the -f
> >> flag here as we do not need it.
> >>
> >> Cc: Heinrich Schuchardt <xypron.glpk at gmx.de>
> >> Signed-off-by: Tom Rini <trini at konsulko.com>
> >
> > Applied to u-boot/master, thanks!
> >
> With this patch on the Pine64 LTS:
> => => setenv efi_selftest device tree
> => => setenv serial# Testing DT
> ## Error: Can't overwrite "serial#"
> ## Error inserting "serial#" variable, errno=1
> =>
> This worked without your patch.
> This patch does not solve any problem.

This patch resolved the problems trying to use "env set -f" on platforms
where CONFIG_ENV_ACCESS_IGNORE_FORCE is unset and the variable is not
protected.  With:
commit 0f036bf4b87e6416f5c4d23865a62a62d9073c20
Author: Marek Vasut <marex at denx.de>
Date:   Tue Jul 7 20:51:33 2020 +0200

    env: Warn on force access if ENV_ACCESS_IGNORE_FORCE set

applied those platforms fail efi_selftest.  The answer I believe is that
on your platform serial# is protected so you do have to force
overwriting it in order to change it.  This is not the case of all
platforms with a serial# variable.

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