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Subject[PATCH 4.19 241/276] hwrng: omap - Set default quality
Date
[ Upstream commit 62f95ae805fa9e1e84d47d3219adddd97b2654b7 ]

Newer combinations of the glibc, kernel and openssh can result in long initial
startup times on OMAP devices:

[ 6.671425] systemd-rc-once[102]: Creating ED25519 key; this may take some time ...
[ 142.652491] systemd-rc-once[102]: Creating ED25519 key; done.

due to the blocking getrandom(2) system call:

[ 142.610335] random: crng init done

Set the quality level for the omap hwrng driver allowing the kernel to use the
hwrng as an entropy source at boot.

Signed-off-by: Rouven Czerwinski <r.czerwinski@pengutronix.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/char/hw_random/omap-rng.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index b65ff69628995..e9b6ac61fb7f6 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -443,6 +443,7 @@ static int omap_rng_probe(struct platform_device *pdev)
priv->rng.read = omap_rng_do_read;
priv->rng.init = omap_rng_init;
priv->rng.cleanup = omap_rng_cleanup;
+ priv->rng.quality = 900;

priv->rng.priv = (unsigned long)priv;
platform_set_drvdata(pdev, priv);
--
2.20.1


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