Re: [PATCH] dyn_array: using %pF instead ofprint_fn_descriptor_symbol

From: Andrew Morton
Date: Fri Aug 29 2008 - 18:21:48 EST


On Fri, 29 Aug 2008 15:07:49 -0700
Yinghai Lu <yhlu.kernel@xxxxxxxxx> wrote:

> + printk(KERN_DEBUG "per_cpu_dyn_array %pF ==> [%#lx - %#lx]\n",
> + da->name, phys, phys + size);

This:

struct dyn_array {
void **name;

is a bit confusing. One normally expects a variable called "name" to
point at a character string.

What _does_ this thing point at? There are no code comments which I
can find, it's unobvious from the source code, the type is the
information-free void** and the identifier is misleading.

I find that documenting the data structures is the best way of making
code understandable (and hence maintainable).

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