Re: [PATCH v2 3/5] cpufreq: Use %pe to print error pointers symbolically

[Viresh Kumar <viresh.kumar@linaro.org>]

On 13-09-26, 00:41, Sumeet Pawnikar wrote:
> Replace PTR_ERR() and %ld with %pe and pass the original pointer directly
> to pr_err() and pr_warn(). The %pe format specifier prints a symbolic error
> name (e.g. -ENOMEM) when CONFIG_SYMBOLIC_ERRNAME is enabled, otherwise it
> falls back gracefully and prints the raw integer value. This makes messages
> more readable without any functional change.
> 
> Signed-off-by: Sumeet Pawnikar <sumeet4linux@gmail.com>
> ---
>  drivers/cpufreq/bmips-cpufreq.c   | 4 ++--
>  drivers/cpufreq/cppc_cpufreq.c    | 4 ++--
>  drivers/cpufreq/qoriq-cpufreq.c   | 4 ++--
>  drivers/cpufreq/s3c64xx-cpufreq.c | 5 ++---
>  4 files changed, 8 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/cpufreq/bmips-cpufreq.c b/drivers/cpufreq/bmips-cpufreq.c
> index a8e35bc75fb2..389fff5e6f65 100644
> --- a/drivers/cpufreq/bmips-cpufreq.c
> +++ b/drivers/cpufreq/bmips-cpufreq.c
> @@ -132,8 +132,8 @@ static int bmips_cpufreq_init(struct cpufreq_policy *policy)
>  
>  	freq_table = bmips_cpufreq_get_freq_table(policy);
>  	if (IS_ERR(freq_table)) {
> -		pr_err("%s: couldn't determine frequency table (%ld).\n",
> -			BMIPS_CPUFREQ_NAME, PTR_ERR(freq_table));
> +		pr_err("%s: couldn't determine frequency table (%pe).\n",
> +			BMIPS_CPUFREQ_NAME, freq_table);
>  		return PTR_ERR(freq_table);
>  	}
>  
> diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c
> index 80893844353c..f767898ebfb5 100644
> --- a/drivers/cpufreq/cppc_cpufreq.c
> +++ b/drivers/cpufreq/cppc_cpufreq.c
> @@ -230,8 +230,8 @@ static void cppc_fie_kworker_init(void)
>  
>  	kworker_fie = kthread_run_worker(0, "cppc_fie");
>  	if (IS_ERR(kworker_fie)) {
> -		pr_warn("%s: failed to create kworker_fie: %ld\n", __func__,
> -			PTR_ERR(kworker_fie));
> +		pr_warn("%s: failed to create kworker_fie: %pe\n", __func__,
> +			kworker_fie);
>  		fie_disabled = FIE_DISABLED;
>  		kworker_fie = NULL;
>  		return;
> diff --git a/drivers/cpufreq/qoriq-cpufreq.c b/drivers/cpufreq/qoriq-cpufreq.c
> index 42edb41ad459..0652e5df0278 100644
> --- a/drivers/cpufreq/qoriq-cpufreq.c
> +++ b/drivers/cpufreq/qoriq-cpufreq.c
> @@ -57,8 +57,8 @@ static u32 get_bus_freq(void)
>  	/* get platform freq by its clock name */
>  	pltclk = clk_get(NULL, "cg-pll0-div1");
>  	if (IS_ERR(pltclk)) {
> -		pr_err("%s: can't get bus frequency %ld\n",
> -		       __func__, PTR_ERR(pltclk));
> +		pr_err("%s: can't get bus frequency %pe\n",
> +		       __func__, pltclk);
>  		return PTR_ERR(pltclk);
>  	}
>  
> diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
> index 9cef71528076..9a01592425ee 100644
> --- a/drivers/cpufreq/s3c64xx-cpufreq.c
> +++ b/drivers/cpufreq/s3c64xx-cpufreq.c
> @@ -152,15 +152,14 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
>  
>  	policy->clk = clk_get(NULL, "armclk");
>  	if (IS_ERR(policy->clk)) {
> -		pr_err("Unable to obtain ARMCLK: %ld\n",
> -		       PTR_ERR(policy->clk));
> +		pr_err("Unable to obtain ARMCLK: %pe\n", policy->clk);
>  		return PTR_ERR(policy->clk);
>  	}
>  
>  #ifdef CONFIG_REGULATOR
>  	vddarm = regulator_get(NULL, "vddarm");
>  	if (IS_ERR(vddarm)) {
> -		pr_err("Failed to obtain VDDARM: %ld\n", PTR_ERR(vddarm));
> +		pr_err("Failed to obtain VDDARM: %pe\n", vddarm);
>  		pr_err("Only frequency scaling available\n");
>  		vddarm = NULL;
>  	} else {

Applied. Thanks.

-- 
viresh