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hwrng: omap - Set default quality

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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>
This commit is contained in:
Rouven Czerwinski 2019-03-11 11:58:57 +01:00 committed by Herbert Xu
parent f808aa3f24
commit 62f95ae805
1 changed files with 1 additions and 0 deletions
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drivers/char/hw_random/omap-rng.c
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@ -443,6 +443,7 @@ static int omap_rng_probe(struct platform_device *pdev)
priv->rng.read = omap_rng_do_read; priv->rng.read = omap_rng_do_read;
priv->rng.init = omap_rng_init; priv->rng.init = omap_rng_init;
priv->rng.cleanup = omap_rng_cleanup; priv->rng.cleanup = omap_rng_cleanup;
priv->rng.quality = 900;
priv->rng.priv = (unsigned long)priv; priv->rng.priv = (unsigned long)priv;
platform_set_drvdata(pdev, priv); platform_set_drvdata(pdev, priv);