Eric Lee / smarc-fsl-linux-kernel

11 Feb, 2016

1 commit

  • ed8b0de5a   efi: Make efivarfs entries immutable by default ... Browse Code »

    "rm -rf" is bricking some peoples' laptops because of variables being
    used to store non-reinitializable firmware driver data that's required
    to POST the hardware.

    These are 100% bugs, and they need to be fixed, but in the mean time it
    shouldn't be easy to *accidentally* brick machines.

    We have to have delete working, and picking which variables do and don't
    work for deletion is quite intractable, so instead make everything
    immutable by default (except for a whitelist), and make tools that
    aren't quite so broad-spectrum unset the immutable flag.

    Signed-off-by: Peter Jones
    Tested-by: Lee, Chun-Yi
    Acked-by: Matthew Garrett
    Signed-off-by: Matt Fleming

    Peter Jones
     

17 Apr, 2013

1 commit

  • d68772b7c   efivarfs: Move to fs/efivarfs ... Browse Code »

    Now that efivarfs uses the efivar API, move it out of efivars.c and
    into fs/efivarfs where it belongs. This move will eventually allow us
    to enable the efivarfs code without having to also enable
    CONFIG_EFI_VARS built, and vice versa.

    Furthermore, things like,

    mount -t efivarfs none /sys/firmware/efi/efivars

    will now work if efivarfs is built as a module without requiring the
    use of MODULE_ALIAS(), which would have been necessary when the
    efivarfs code was part of efivars.c.

    Cc: Matthew Garrett
    Cc: Jeremy Kerr
    Reviewed-by: Tom Gundersen
    Tested-by: Tom Gundersen
    Signed-off-by: Matt Fleming

    Matt Fleming