Re: [U-Boot] [PATCH 1/1] efi_loader: disable saving of EFI variables

On 20 October 2017 at 00:15, Heinrich Schuchardt xypron.glpk@gmx.de wrote:

The current implementation of saving of EFI variables has unwanted side effects:

• Writing to flash on every boot may harm the memory.
• All variables are saved. Not only the EFI ones.
• Variables are saved even if there is not change.

So let us disable saving for now until we have a complete solution.

This will also mean every boot is "first boot", ie. falling back to fallback.efi to populate BootOrder/BootNNNN variables, and never using bootmgr.

Fixes: ad644e7c1823 efi_loader: efi variable support Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de

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lib/efi_loader/efi_boottime.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-)

Reviewed-by: Simon Glass sjg@chromium.org