From 405835645a2db17152e6d6cdb4c9d1893f9501cc Mon Sep 17 00:00:00 2001 From: Alexander Graf Date: Thu, 19 Oct 2017 23:23:50 +0200 Subject: [PATCH] efi_loader: Disable env_save() call on boot With the introduction of EFI variable support, we also wanted to persist these EFI variables. However, the way it was implemented we ended up persisting all U-Boot environment variables on every EFI boot. That could potentially lead to unexpected side effects because variables that were not supposed to be written to persisted env get written. It also means we may end up writing the environment more often than we should. For this release, let's just disable EFI variable persistence and instead implement it properly for the next one. Reported-by: Heinrich Schuchardt Fixes: ad644e7c182 ("efi_loader: efi variable support") Signed-off-by: Alexander Graf Acked-by: Rob Clark Reviewed-by: Heinrich Schuchardt --- lib/efi_loader/efi_boottime.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index f627340..743b848 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -1439,10 +1439,7 @@ static efi_status_t EFIAPI efi_exit_boot_services(void *image_handle, /* Make sure that notification functions are not called anymore */ efi_tpl = TPL_HIGH_LEVEL; -#if defined(CONFIG_CMD_SAVEENV) && !defined(CONFIG_ENV_IS_NOWHERE) - /* save any EFI variables that have been written: */ - env_save(); -#endif + /* XXX Should persist EFI variables here */ board_quiesce_devices(); -- 2.7.4