Rule 11.1 and NULL defined as ((void*) 0)

[roberto]

Please consider the following test program:

Code:

#define NULL ((void*) 0)

struct super_block;
struct inode;

typedef int (*find_inode_t)(struct inode *, unsigned long, void *);


extern struct inode * iget4_locked(struct super_block *, unsigned long,
                   find_inode_t, void *);

static inline struct inode *iget(struct super_block *sb, unsigned long ino)
{
    struct inode *inode = iget4_locked(sb, ino, NULL, NULL);
    return inode;
}

My reading of rule 11.1 is that NULL (so defined, which is quite common) cannot be passed that way to iget4_locked(). However, since I see zillions of violations of this kind, I am caught by the doubt.
Many thanks,

Roberto