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From:   David Howells <dhowells@redhat.com>
In-Reply-To: <20200407200318.11711-1-longman@redhat.com>
References: <20200407200318.11711-1-longman@redhat.com>
To:     Waiman Long <longman@redhat.com>
Cc:     dhowells@redhat.com, Andrew Morton <akpm@linux-foundation.org>,
        Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
        James Morris <jmorris@namei.org>,
        "Serge E. Hallyn" <serge@hallyn.com>, linux-mm@kvack.org,
        keyrings@vger.kernel.org, linux-kernel@vger.kernel.org,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Joe Perches <joe@perches.com>,
        Matthew Wilcox <willy@infradead.org>,
        David Rientjes <rientjes@google.com>
Subject: Re: [PATCH v3] mm: Add kvfree_sensitive() for freeing sensitive data objects
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Content-ID: <694134.1586290793.1@warthog.procyon.org.uk>
Date:   Tue, 07 Apr 2020 21:19:53 +0100
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Waiman Long <longman@redhat.com> wrote:

> sensitive data objects allocated by kvmalloc(). The relevnat places

"relevant".

>  			if (unlikely(key_data))
> -				__kvzfree(key_data, key_data_len);
> +				kvfree_sensitive(key_data, key_data_len);

I think the if-statement is redundant.

David