[PATCH] ppc64: Thermal control for SMU based machines

[Andrew Morton]

Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote:
>
> +	/* First, locate the params for this model */
> +	for (i = 0; i < WF_SMU_SYS_FANS_NUM_CONFIGS; i++)
> +		if (wf_smu_sys_all_params[i].model_id == mach_model) {

The loop control is a bit scary here.  If you were to do

	#define WF_SMU_SYS_FANS_NUM_CONFIGS ARRAY_SIZE(wf_smu_sys_all_params)

then we wouldn't need duplicated into in two places.

> +			param = &wf_smu_sys_all_params[i];
> +			break;
> +		}
> +	/* No params found, put fans to max */
> +	if (param == NULL) {
> +		printk(KERN_WARNING "windfarm: System fan config not found "
> +		       "for this machine model, max fan speed\n");
> +		goto fail;
> +	}
> +
> +	/* Alloc & initialize state */
> +	wf_smu_sys_fans = kmalloc(sizeof(struct wf_smu_sys_fans_state),
> +					GFP_KERNEL);
> +	if (wf_smu_sys_fans == NULL) {
> +		printk(KERN_WARNING "windfarm: Memory allocation error"
> +		       " max fan speed\n");
> +		goto fail;
> +	}
> +       	wf_smu_sys_fans->ticks = 1;

whitespace broke.