Messages in this thread | | | Date | Wed, 10 May 2006 04:38:34 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH] mm: cleanup swap unused warning |
| |
Con Kolivas <kernel@kolivas.org> wrote: > > Are there any users of swp_entry_t when CONFIG_SWAP is not defined?
Well there shouldn't be. Making accesses to swp_entry_t.val fail to compile if !CONFIG_SWAP might be useful.
> +/* > + * A swap entry has to fit into a "unsigned long", as > + * the entry is hidden in the "index" field of the > + * swapper address space. > + */ > +#ifdef CONFIG_SWAP > typedef struct { > unsigned long val; > } swp_entry_t; > +#else > +typedef struct { > + unsigned long val; > +} swp_entry_t __attribute__((__unused__)); > +#endif
We have __attribute_used__, which hides a gcc oddity. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |