Re: [kernel-hardening] Re: [PATCH] video: constify geode ops structures

From: Dan Carpenter
Date: Mon Nov 09 2015 - 11:39:42 EST

On Mon, Nov 09, 2015 at 02:50:47PM +0000, Julia Lawall wrote:
> On Mon, 9 Nov 2015, Dan Carpenter wrote:
> > Actually, it looks like Emese Revfy is going to merge the GCC plugin
> > constify stuff sooner rather than later so maybe adding all these consts
> > isn't going to be needed.
> Is there any advantage of const over the plugin? The consts are easy to
> add.

Less syntax. It's a whitelist instead of blacklist so we don't miss

> Does the plugin help for structures that have non-function fields?

Yeah. You can mark a struct as __do_const in the .h file and it will
make them all const automatically.

dan carpenter

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