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[HWRNG]: move status polling loop to data_present callbacks

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Handle waiting for new random within the drivers themselves, this allows to
use better suited timeouts for the individual rngs.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Patrick McHardy 2007-11-21 12:24:45 +08:00 • committed by Herbert Xu
commit 984e976f53
8 changed files with 73 additions and 38 deletions
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2
include/linux/hw_random.h
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@ -33,7 +33,7 @@ struct hwrng {
const char *name;
int (*init)(struct hwrng *rng);
void (*cleanup)(struct hwrng *rng);
int (*data_present)(struct hwrng *rng);
int (*data_present)(struct hwrng *rng, int wait);
int (*data_read)(struct hwrng *rng, u32 *data);
unsigned long priv;