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From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Jagdish Gediya <jvgediya@linux.ibm.com>
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Jonathan.Cameron@huawei.com, adobriyan@gmail.com,
	akpm@linux-foundation.org, rf@opensource.cirrus.com,
	pmladek@suse.com, ying.huang@intel.com, dave.hansen@intel.com
Subject: Re: [PATCH v2 2/2] mm: Covert sysfs input to bool using kstrtobool()
Date: Wed, 27 Apr 2022 18:17:29 +0300	[thread overview]
Message-ID: <YmleidxlL2/d859f@smile.fi.intel.com> (raw)
In-Reply-To: <20220426170040.65487-2-jvgediya@linux.ibm.com>

On Tue, Apr 26, 2022 at 10:30:40PM +0530, Jagdish Gediya wrote:
> Sysfs input conversion to corrosponding bool value e.g. "false" or "0"
> to false, "true" or "1" to true are currently handled through strncmp
> at multiple places. Use kstrtobool() to convert sysfs input to bool
> value.

...

> +	if (kstrtobool(buf, &numa_demotion_enabled))
>  		return -EINVAL;

Hmm... The commit message doesn't explain what's wrong with the error codes
returned by kstrtobool(). Can't it be

	ret = kstrtobool();
	if (ret)
		return ret;

?

...

> +	if (kstrtobool(buf, &enable_vma_readahead))
>  		return -EINVAL;

Ditto.

-- 
With Best Regards,
Andy Shevchenko




  parent reply	other threads:[~2022-04-27 15:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-26 17:00 [PATCH v2 1/2] lib/kstrtox.c: Add "false"/"true" support to kstrtobool() Jagdish Gediya
2022-04-26 17:00 ` [PATCH v2 2/2] mm: Covert sysfs input to bool using kstrtobool() Jagdish Gediya
2022-04-26 17:24   ` Matthew Wilcox
2022-04-27 15:17   ` Andy Shevchenko [this message]
2022-05-13  1:05     ` Andrew Morton
2022-05-13 18:28       ` Alexey Dobriyan
2022-05-16 10:48       ` Jagdish Gediya
2022-05-16 10:47     ` Jagdish Gediya
2022-04-26 17:23 ` [PATCH v2 1/2] lib/kstrtox.c: Add "false"/"true" support to kstrtobool() Matthew Wilcox

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