Hello,
On Thu, Oct 16, 2014 at 05:19:43PM +0800, Yifan Zhang wrote:
> @@ -82,10 +82,10 @@ static void __init zone_sizes_init(unsigned long
> min, unsigned long max)
>
> memset(zone_size, 0, sizeof(zone_size));
>
>
>
> /* 4GB maximum for 32-bit only capable devices */
>
> - if (IS_ENABLED(CONFIG_ZONE_DMA)) {
>
> - max_dma = PFN_DOWN(max_zone_dma_phys());
>
> - zone_size[ZONE_DMA] = max_dma - min;
>
> - }
>
> +#ifdef CONFIG_ZONE_DMA
>
> + max_dma = PFN_DOWN(max_zone_dma_phys());
>
> + zone_size[ZONE_DMA] = max_dma - min;
>
> +#endif
Apart from your patch being broken (probably by your MUA or MTA) usually
if (IS_ENABLED(...)) is preferred over #ifdef because it doesn't stand
out over the other program source.
Best regards
Uwe
--
Pengutronix e.K. | Uwe Kleine-König |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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