Re: [PATCH v2 1/4] devres: constify p in devm_kfree()

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On Tue 28 Aug 02:33 PDT 2018, Bartosz Golaszewski wrote:

> Make devm_kfree() signature uniform with that of kfree(). To avoid
> compiler warnings: cast p to (void *) when calling devres_destroy().
> 

Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>

Regards,
Bjorn

> Signed-off-by: Bartosz Golaszewski <brgl@xxxxxxxx>
> ---
>  drivers/base/devres.c  | 5 +++--
>  include/linux/device.h | 2 +-
>  2 files changed, 4 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/base/devres.c b/drivers/base/devres.c
> index f98a097e73f2..438c91a43508 100644
> --- a/drivers/base/devres.c
> +++ b/drivers/base/devres.c
> @@ -885,11 +885,12 @@ EXPORT_SYMBOL_GPL(devm_kasprintf);
>   *
>   * Free memory allocated with devm_kmalloc().
>   */
> -void devm_kfree(struct device *dev, void *p)
> +void devm_kfree(struct device *dev, const void *p)
>  {
>  	int rc;
>  
> -	rc = devres_destroy(dev, devm_kmalloc_release, devm_kmalloc_match, p);
> +	rc = devres_destroy(dev, devm_kmalloc_release,
> +			    devm_kmalloc_match, (void *)p);
>  	WARN_ON(rc);
>  }
>  EXPORT_SYMBOL_GPL(devm_kfree);
> diff --git a/include/linux/device.h b/include/linux/device.h
> index 8f882549edee..33f7cb271fbb 100644
> --- a/include/linux/device.h
> +++ b/include/linux/device.h
> @@ -692,7 +692,7 @@ static inline void *devm_kcalloc(struct device *dev,
>  {
>  	return devm_kmalloc_array(dev, n, size, flags | __GFP_ZERO);
>  }
> -extern void devm_kfree(struct device *dev, void *p);
> +extern void devm_kfree(struct device *dev, const void *p);
>  extern char *devm_kstrdup(struct device *dev, const char *s, gfp_t gfp) __malloc;
>  extern void *devm_kmemdup(struct device *dev, const void *src, size_t len,
>  			  gfp_t gfp);
> -- 
> 2.18.0
> 




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