Re: [PATCH v2] nvdimm: Use kstrtobool() instead of strtobool()

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On Sat, 2023-01-14 at 09:50 +0100, Christophe JAILLET wrote:
> strtobool() is the same as kstrtobool().
> However, the latter is more used within the kernel.
> 
> In order to remove strtobool() and slightly simplify kstrtox.h, switch to
> the other function name.
> 
> While at it, include the corresponding header file (<linux/kstrtox.h>)
> 
> Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
> ---
> This patch was already sent as a part of a serie ([1]) that axed all usages
> of strtobool().
> Most of the patches have been merged in -next.
> 
> I synch'ed with latest -next and re-send the remaining ones as individual
> patches.
> 
> Changes in v2:
>   - synch with latest -next.
> 
> [1]: https://lore.kernel.org/all/cover.1667336095.git.christophe.jaillet@xxxxxxxxxx/
> ---
>  drivers/nvdimm/namespace_devs.c | 3 ++-
>  drivers/nvdimm/pmem.c           | 3 ++-
>  drivers/nvdimm/region_devs.c    | 5 +++--
>  3 files changed, 7 insertions(+), 4 deletions(-)

This looks reasonable,

Reviewed-by: Vishal Verma <vishal.l.verma@xxxxxxxxx>

> 
> diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
> index c60ec0b373c5..07177eadc56e 100644
> --- a/drivers/nvdimm/namespace_devs.c
> +++ b/drivers/nvdimm/namespace_devs.c
> @@ -2,6 +2,7 @@
>  /*
>   * Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
>   */
> +#include <linux/kstrtox.h>
>  #include <linux/module.h>
>  #include <linux/device.h>
>  #include <linux/sort.h>
> @@ -1338,7 +1339,7 @@ static ssize_t force_raw_store(struct device *dev,
>                 struct device_attribute *attr, const char *buf, size_t len)
>  {
>         bool force_raw;
> -       int rc = strtobool(buf, &force_raw);
> +       int rc = kstrtobool(buf, &force_raw);
>  
>         if (rc)
>                 return rc;
> diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
> index 80ded5a2838a..f2a336c6d8c6 100644
> --- a/drivers/nvdimm/pmem.c
> +++ b/drivers/nvdimm/pmem.c
> @@ -17,6 +17,7 @@
>  #include <linux/moduleparam.h>
>  #include <linux/badblocks.h>
>  #include <linux/memremap.h>
> +#include <linux/kstrtox.h>
>  #include <linux/vmalloc.h>
>  #include <linux/blk-mq.h>
>  #include <linux/pfn_t.h>
> @@ -408,7 +409,7 @@ static ssize_t write_cache_store(struct device *dev,
>         bool write_cache;
>         int rc;
>  
> -       rc = strtobool(buf, &write_cache);
> +       rc = kstrtobool(buf, &write_cache);
>         if (rc)
>                 return rc;
>         dax_write_cache(pmem->dax_dev, write_cache);
> diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
> index 83dbf398ea84..f5872de7ea5a 100644
> --- a/drivers/nvdimm/region_devs.c
> +++ b/drivers/nvdimm/region_devs.c
> @@ -5,6 +5,7 @@
>  #include <linux/scatterlist.h>
>  #include <linux/memregion.h>
>  #include <linux/highmem.h>
> +#include <linux/kstrtox.h>
>  #include <linux/sched.h>
>  #include <linux/slab.h>
>  #include <linux/hash.h>
> @@ -275,7 +276,7 @@ static ssize_t deep_flush_store(struct device *dev, struct device_attribute *att
>                 const char *buf, size_t len)
>  {
>         bool flush;
> -       int rc = strtobool(buf, &flush);
> +       int rc = kstrtobool(buf, &flush);
>         struct nd_region *nd_region = to_nd_region(dev);
>  
>         if (rc)
> @@ -530,7 +531,7 @@ static ssize_t read_only_store(struct device *dev,
>                 struct device_attribute *attr, const char *buf, size_t len)
>  {
>         bool ro;
> -       int rc = strtobool(buf, &ro);
> +       int rc = kstrtobool(buf, &ro);
>         struct nd_region *nd_region = to_nd_region(dev);
>  
>         if (rc)





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