Re: [PATCH] random32: Restore __latent_entropy attribute on net_rand_state

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Hi Kees,

On Mon, Oct 05, 2020 at 07:12:29PM -0700, Kees Cook wrote:
> On Fri, Oct 02, 2020 at 05:16:11PM +0200, Thibaut Sautereau wrote:
> > From: Thibaut Sautereau <thibaut.sautereau@xxxxxxxxxxx>
> > 
> > Commit f227e3ec3b5c ("random32: update the net random state on interrupt
> > and activity") broke compilation and was temporarily fixed by Linus in
> > 83bdc7275e62 ("random32: remove net_rand_state from the latent entropy
> > gcc plugin") by entirely moving net_rand_state out of the things handled
> > by the latent_entropy GCC plugin.
> > 
> > From what I understand when reading the plugin code, using the
> > __latent_entropy attribute on a declaration was the wrong part and
> > simply keeping the __latent_entropy attribute on the variable definition
> > was the correct fix.
> > 
> > Fixes: 83bdc7275e62 ("random32: remove net_rand_state from the latent entropy gcc plugin")
> > Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
> > Cc: Willy Tarreau <w@xxxxxx>
> > Cc: Emese Revfy <re.emese@xxxxxxxxx>
> > Signed-off-by: Thibaut Sautereau <thibaut.sautereau@xxxxxxxxxxx>
> 
> Yes, that looks correct. Thank you!
> 
> Acked-by: Kees Cook <keescook@xxxxxxxxxxxx>
> 
> I'm not sure the best tree for this. Ted, Andrew, Linus? I'll take it
> via my gcc plugin tree if no one else takes it. :)

It was already merged as commit 09a6b0bc3be79 and queued for -stable.

Cheers,
Willy



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