RE: [EXT] [PATCH][next] wireless: marvell: Replace zero-length array with flexible-array member

Hi Gustavo,

The current codebase makes use of the zero-length array language extension
to the C90 standard, but the preferred mechanism to declare variable-length
types such as these ones is a flexible array member[1][2], introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning in
case the flexible array does not occur last in the structure, which will help us
prevent some kind of undefined behavior bugs from being inadvertently
introduced[3] to the codebase from now on.

Also, notice that, dynamic memory allocations won't be affected by this
change:

"Flexible array members have incomplete type, and so the sizeof operator
may not be applied. As a quirk of the original implementation of zero-length
arrays, sizeof evaluates to zero."[1]

Thanks for this path.

Acked-by: Ganapathi Bhat <redacted>