linux-kernel - Re: [PATCH v2 3/7] remoteproc: Simplify default name allocation

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Date:   Sun, 19 Apr 2020 22:10:05 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Mathieu Poirier <mathieu.poirier@...aro.org>
Cc:     ohad@...ery.com, s-anna@...com, elder@...aro.org,
        Markus.Elfring@....de, linux-remoteproc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/7] remoteproc: Simplify default name allocation

On Wed 15 Apr 13:48 PDT 2020, Mathieu Poirier wrote:

> In an effort to cleanup firmware name allocation, replace the
> cumbersome mechanic used to allocate a default firmware name with
> function kasprintf().
> 
> Suggested-by: Bjorn Andersson <bjorn.andersson@...aro.org>
> Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>

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

> ---
>  drivers/remoteproc/remoteproc_core.c | 19 +++++++------------
>  1 file changed, 7 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
> index 4dee63f319ba..9899467fa1cf 100644
> --- a/drivers/remoteproc/remoteproc_core.c
> +++ b/drivers/remoteproc/remoteproc_core.c
> @@ -1982,24 +1982,19 @@ static const struct device_type rproc_type = {
>  static int rproc_alloc_firmware(struct rproc *rproc,
>  				const char *name, const char *firmware)
>  {
> -	char *p, *template = "rproc-%s-fw";
> -	int name_len;
> +	char *p;
>  
> -	if (!firmware) {
> +	if (!firmware)
>  		/*
>  		 * If the caller didn't pass in a firmware name then
>  		 * construct a default name.
>  		 */
> -		name_len = strlen(name) + strlen(template) - 2 + 1;
> -		p = kmalloc(name_len, GFP_KERNEL);
> -		if (!p)
> -			return -ENOMEM;
> -		snprintf(p, name_len, template, name);
> -	} else {
> +		p = kasprintf(GFP_KERNEL, "rproc-%s-fw", name);
> +	else
>  		p = kstrdup(firmware, GFP_KERNEL);
> -		if (!p)
> -			return -ENOMEM;
> -	}
> +
> +	if (!p)
> +		return -ENOMEM;
>  
>  	rproc->firmware = p;
>  
> -- 
> 2.20.1
>