linux-kernel - Re: [PATCH v2 2/2] regulator: qcom_spmi: Only use selector based regulator ops

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <5710BFE7.9060802@codeaurora.org>
Date:	Fri, 15 Apr 2016 15:48:15 +0530
From:	Rajendra Nayak <rnayak@...eaurora.org>
To:	Stephen Boyd <stephen.boyd@...aro.org>,
	Mark Brown <broonie@...nel.org>
CC:	linux-arm@...ts.infradead.org, linux-kernel@...r.kernel.org,
	linux-arm-msm@...r.kernel.org,
	Georgi Djakov <georgi.djakov@...aro.org>,
	David Collins <collinsd@...eaurora.org>
Subject: Re: [PATCH v2 2/2] regulator: qcom_spmi: Only use selector based
 regulator ops

[]...
  
>  static int spmi_regulator_select_voltage_same_range(struct spmi_regulator *vreg,
> -		int min_uV, int max_uV, u8 *range_sel, u8 *voltage_sel,
> -		unsigned *selector)
> +		int min_uV, int max_uV)
>  {
>  	const struct spmi_voltage_range *range;
>  	int uV = min_uV;
> -	int i;
> +	int i, selector;
>  
>  	range = spmi_regulator_find_range(vreg);
>  	if (!range)
> @@ -638,8 +665,8 @@ static int spmi_regulator_select_voltage_same_range(struct spmi_regulator *vreg,
>  	 * Force uV to be an allowed set point by applying a ceiling function to
>  	 * the uV value.
>  	 */
> -	*voltage_sel = DIV_ROUND_UP(uV - range->min_uV, range->step_uV);
> -	uV = *voltage_sel * range->step_uV + range->min_uV;
> +	uV = DIV_ROUND_UP(uV - range->min_uV, range->step_uV);
> +	uV = uV * range->step_uV + range->min_uV;
>  
>  	if (uV > max_uV) {
>  		/*
> @@ -649,43 +676,49 @@ static int spmi_regulator_select_voltage_same_range(struct spmi_regulator *vreg,
>  		goto different_range;
>  	}
>  
> -	*selector = 0;
> +	selector = 0;
>  	for (i = 0; i < vreg->set_points->count; i++) {
>  		if (uV >= vreg->set_points->range[i].set_point_min_uV
>  		    && uV <= vreg->set_points->range[i].set_point_max_uV) {
> -			*selector +=
> +			selector +=
>  			    (uV - vreg->set_points->range[i].set_point_min_uV)
>  				/ vreg->set_points->range[i].step_uV;
>  			break;
>  		}
>  
> -		*selector += vreg->set_points->range[i].n_voltages;
> +		selector += vreg->set_points->range[i].n_voltages;
>  	}
>  
> -	if (*selector >= vreg->set_points->n_voltages)
> +	if (selector >= vreg->set_points->n_voltages)
>  		goto different_range;
>  
>  	return 0;

This should now return selector instead of 0

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by The Linux Foundation