On Thu, 25 Jul 2013 14:30:31 +1000, Anton Blanchard <an...@samba.org> wrote:
>
> Hi Michael,
>
> > But why not put the initcall in drivers/of/fdt.c, that way it's not
> > early but it's still common ?
>
> Good idea! How does this look? So long as it happens before
> module_init(rand_initialize) we should be good.
>
> Anton
> --
>
> We feed the entire DMI table into the random pool to provide
> better random data during early boot, so do the same with the
> flattened device tree.
>
> Signed-off-by: Anton Blanchard <an...@samba.org>
> ---
>
> v2: move to drivers/of/fdt.c as suggested by Michael Ellerman
>
> Index: b/drivers/of/fdt.c
> ===================================================================
> --- a/drivers/of/fdt.c
> +++ b/drivers/of/fdt.c
> @@ -17,6 +17,7 @@
> #include <linux/string.h>
> #include <linux/errno.h>
> #include <linux/slab.h>
> +#include <linux/random.h>
>
> #include <asm/setup.h> /* for COMMAND_LINE_SIZE */
> #ifdef CONFIG_PPC
> @@ -714,3 +715,14 @@ void __init unflatten_device_tree(void)
> }
>
> #endif /* CONFIG_OF_EARLY_FLATTREE */
> +
> +/* Feed entire flattened device tree into the random pool */
> +static int __init add_fdt_randomness(void)
> +{
> + if (initial_boot_params)
> + add_device_randomness(initial_boot_params,
> + initial_boot_params->totalsize);
be32_to_cpu(initial_boot_params->totalsize);
g.
_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
