non-ANSI Unions

[PUCCETTI Armand <armand.puccetti@cea.fr>]

Many "unions' are present in the code, but are non-ANSI!

For instance, I see:

struct page_info
{
    /* Each frame can be threaded onto a doubly-linked list. */
    union {
        struct list_head list;
        /* Shadow uses this field as an up-pointer in lower-level shadows */
        paddr_t up;
    };
    /* Reference count and various PGC_xxx flags and fields. */
    u32 count_info;
...}

which should be written properly:

struct page_info
{
    /* Each frame can be threaded onto a doubly-linked list. */
    union {
        struct list_head list;
        /* Shadow uses this field as an up-pointer in lower-level shadows */
        paddr_t up;
    } foo;

    /* Reference count and various PGC_xxx flags and fields. */
    u32 count_info;
...}

Is there any good reason to do so? Is it possible to change that, to 
comply with the standard
(and therefore with analysis tools too) ?

Armand