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| author |   Alexander Sverdlin <alexander.sverdlin@nokia.com> | 2019-11-06 09:30:49 +0000 |
|---|---|---|
| committer |   Herbert Xu <herbert@gondor.apana.org.au> | 2019-11-17 08:37:29 +0800 |
| commit | 6d01d8511dceb9cd40f72eb102b7d24f0b2e997b (patch) | |
| tree | e73f92591dbda36418e4b5f218fbafbc983f310e /Kconfig | |
| parent | crypto: tgr192 - remove unneeded semicolon (diff) | |
| download | linux-dev-6d01d8511dceb9cd40f72eb102b7d24f0b2e997b.tar.xz linux-dev-6d01d8511dceb9cd40f72eb102b7d24f0b2e997b.zip | |
hwrng: ks-sa - Add minimum sleep time before ready-polling
Current polling timeout is 25 us. The hardware is currently configured to
harvest the entropy for 81920 us. This leads to timeouts even during
blocking read (wait=1).
Log snippet:
[ 5.727589] [<c040ffcc>] (ks_sa_rng_probe) from [<c04181e8>] (platform_drv_probe+0x58/0xb4)
...
[ 5.727805] hwrng: no data available
...
[ 13.157016] random: systemd: uninitialized urandom read (16 bytes read)
[ 13.157033] systemd[1]: Initializing machine ID from random generator.
...
[ 15.848770] random: fast init done
...
[ 15.848807] random: crng init done
After the patch:
[ 6.223534] random: systemd: uninitialized urandom read (16 bytes read)
[ 6.223551] systemd[1]: Initializing machine ID from random generator.
...
[ 6.876075] random: fast init done
...
[ 6.954200] random: systemd: uninitialized urandom read (16 bytes read)
[ 6.955244] random: systemd: uninitialized urandom read (16 bytes read)
...
[ 7.121948] random: crng init done
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions