Re: [PATCH] hwrng: stm32 - fix build warning

From: Sudip Mukherjee
Date: Wed May 25 2016 - 02:30:33 EST


On Tuesday 24 May 2016 02:50 PM, Maxime Coquelin wrote:
2016-05-24 10:58 GMT+02:00 Arnd Bergmann <arnd@xxxxxxxx>:
On Tuesday, May 24, 2016 10:50:17 AM CEST Maxime Coquelin wrote:
diff --git a/drivers/char/hw_random/stm32-rng.c
b/drivers/char/hw_random/stm32-rng.c
index 92a810648bd0..2a0fc90e4dc3 100644
--- a/drivers/char/hw_random/stm32-rng.c
+++ b/drivers/char/hw_random/stm32-rng.c
@@ -68,6 +68,10 @@ static int stm32_rng_read(struct hwrng *rng, void
*data, size_t max, bool wait)
} while (!sr && --timeout);
}

+ if (WARN_ONCE(sr & (RNG_SR_SEIS | RNG_SR_CEIS),
+ "bad RNG status - %x\n", sr))
+ writel_relaxed(0, priv->base + RNG_SR);
+
/* If error detected or data not ready... */
if (sr != RNG_SR_DRDY)
break;
@@ -79,10 +83,6 @@ static int stm32_rng_read(struct hwrng *rng, void
*data, size_t max, bool wait)
max -= sizeof(u32);
}

- if (WARN_ONCE(sr & (RNG_SR_SEIS | RNG_SR_CEIS),
- "bad RNG status - %x\n", sr))
- writel_relaxed(0, priv->base + RNG_SR);
-
pm_runtime_mark_last_busy((struct device *) priv->rng.priv);
pm_runtime_put_sync_autosuspend((struct device *) priv->rng.priv);

Thanks,


Yes, that looks good to me.

Thanks!
Sudip, do you want to send the patch, or I manage to do it?

Maybe you should send it, i have not done anything in reaching its final form.

Regards
Sudip