kexec reboot reset with efi_delete_dummy_variable

[Dave Young <dyoung@xxxxxxxxxx>]

Hi,

While testing kexec reboot, I sometimes get a reset.  Commenting out the
dummy cleanup in kexec_enter_virtual_mode() make kexec reboot works
again.

Checking the git log, the cleanup was added in below commit: 
commit f8b8404337de4e2466e2e1139ea68b1f8295974f
Author: Matthew Garrett <matthew.garrett@xxxxxxxxxx>
Date:   Sat Jun 1 16:06:20 2013 -0400

    Modify UEFI anti-bricking code

[snip]

In below function, it tries to set a dummy variable, and later delete it
in case success.
arch/x86/platform/efi/quirks.c: -> efi_query_variable_store()

So why we still need delete/cleanup the dummy var after entering virt
mode?  Am I missing something?

Thanks
Dave