Re: [PATCH] - make sure that EFI variable data size is always 64 bit

[Matthew Garrett <mjg59@srcf.ucam.org>]

On Sun, Mar 19, 2006 at 03:29:01PM -0600, Matt Domsch wrote:

> NAK.  efibootmgr, the main userspace consumer of this struct, also
> thinks this is an "unsigned long".

Hm. My copy of efibootmgr has:

typedef struct _efi_variable_t {
        efi_char16_t  VariableName[1024/sizeof(efi_char16_t)];
        efi_guid_t    VendorGuid;
        uint64_t         DataSize;
        uint8_t          Data[1024];
        efi_status_t  Status;
        uint32_t         Attributes;
} __attribute__((packed)) efi_variable_t;

which certainly makes it look like it's expecting a 64-bit value. But 
checking the spec does seem to suggest that datasize is a native value, 
so presumably it's an efibootmgr bug rather than a kernel one? In that 
case, this ought to be dropped.

-- 
Matthew Garrett | mjg59@srcf.ucam.org