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

From: Willy Tarreau
Date: Fri Oct 02 2020 - 11:22:44 EST


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.

Ah thank you, this is what I tried to figure and failed to! Spender
mentioned that a one-liner was all that was needed to fix this but
never responded to my request asking about it.

Willy