Re: [PATCH v2] KEYS: remove redundant memset

[Joe Perches]

On Wed, 2020-07-22 at 06:46 -0700, trix@xxxxxxxxxx wrote:
> From: Tom Rix <trix@xxxxxxxxxx>
> 
> Reviewing use of memset in keyctrl_pkey.c
> 
> keyctl_pkey_params_get prologue code to set params up
> 
> 	memset(params, 0, sizeof(*params));
> 	params->encoding = "raw";
> 
> keyctl_pkey_query has the same prologue
> and calls keyctl_pkey_params_get.
> 
> So remove the prologue.
> 
> Fixes: 00d60fd3b932 ("KEYS: Provide keyctls to drive the new key type ops for asymmetric keys [ver #2]")

At best, this is a micro optimization.

How is this appropriate for a Fixes: line?

> diff --git a/security/keys/keyctl_pkey.c b/security/keys/keyctl_pkey.c
[]
> @@ -166,8 +166,6 @@ long keyctl_pkey_query(key_serial_t id,
>  	struct kernel_pkey_query res;
>  	long ret;
>  
> -	memset(&params, 0, sizeof(params));
> -
>  	ret = keyctl_pkey_params_get(id, _info, &params);
>  	if (ret < 0)
>  		goto error;