Thread (2 messages) 2 messages, 2 authors, 2018-01-18
STALE3109d

[PATCH] hw_random: mediatek: Setup default RNG quality

From: sean.wang@mediatek.com (sean.wang at mediatek.com)
Date: 2018-01-10 04:02:57
Also in: linux-crypto, linux-mediatek, lkml
Subsystem: hardware random number generator core, mediatek random number generator support, the rest · Maintainers: Olivia Mackall, Herbert Xu, Sean Wang, Linus Torvalds

From: Sean Wang <sean.wang@mediatek.com>

When hw_random device's quality is non-zero, it will automatically fill
the kernel's entropy pool at boot.  For the purpose, one conservative
quality value is being picked up as the default value.

Signed-off-by: Sean Wang <sean.wang@mediatek.com>
---
 drivers/char/hw_random/mtk-rng.c | 1 +
 1 file changed, 1 insertion(+)
diff --git a/drivers/char/hw_random/mtk-rng.c b/drivers/char/hw_random/mtk-rng.c
index 8da7bcf..7f99cd5 100644
--- a/drivers/char/hw_random/mtk-rng.c
+++ b/drivers/char/hw_random/mtk-rng.c
@@ -135,6 +135,7 @@ static int mtk_rng_probe(struct platform_device *pdev)
 #endif
 	priv->rng.read = mtk_rng_read;
 	priv->rng.priv = (unsigned long)&pdev->dev;
+	priv->rng.quality = 900;
 
 	priv->clk = devm_clk_get(&pdev->dev, "rng");
 	if (IS_ERR(priv->clk)) {
-- 
2.7.4
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