On Feb 10 2008 15:55, Arjan van de Ven wrote:
quoted text
>+#ifdef CONFIG_DEVKMEM
> /*
>  * This function reads the *virtual* memory as seen by the kernel.
>  */
>@@ -585,6 +588,11 @@ static ssize_t write_kmem(struct file * file, const char __user * buf,
>  	*ppos = p;
>  	return virtr + wrote;
> }
>+#else
>+#define read_kmem NULL
>+#define write_kmem NULL
>+#define mmap_kmem NULL
>+#endif

Is the #else case needed? All kmem_fops uses seem #ifdef'ed out anyway,
except kmem_fops itself. In other words,

+#ifdef CONFIG_DEVKMEM
 static const struct file_operations kmem_fops = {
 ...
 }
+#endif

and do away with the three defines. No? :)
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