Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Mon, 16 Apr 2018 08:10:44 +0200
From: Ingo Molnar <>
To: Joao Moreira <>
Subject: Re: [PATCH 1/4] x86/crypto: camellia: Fix function prototypes

* Joao Moreira <> wrote:

> Convert the use of 'struct camellia_ctx *' to 'void *' in prototypes of
> functions which are referenced through 'struct common_glue_func_entry',
> making their prototypes match those of this struct and, consequently,
> turning them compatible with CFI requirements.
> Whenever needed, cast 'void *' to 'struct camellia_ctx *'.

> +static inline void camellia_enc_blk(void *ctx, u8 *dst, const u8 *src)
>  {
> -	__camellia_enc_blk(ctx, dst, src, false);
> +	__camellia_enc_blk((struct camellia_ctx *) ctx, dst, src, false);
>  }

I don't see how this is an improvement: instead of having a proper type there's 
now an opaque type and an ugly (and dangerous) type cast.

What does "compatible with CFI requirements" mean?



Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.