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| author |   Andy Lutomirski <luto@kernel.org> | 2019-12-23 00:20:47 -0800 |
|---|---|---|
| committer |   Theodore Ts'o <tytso@mit.edu> | 2020-01-07 16:07:01 -0500 |
| commit | 48446f198f9adcb499b30332488dfd5bc3f176f6 (patch) | |
| tree | df7b7957fd86702618f579ea4ccf02a9190803ca /drivers/char/random.c | |
| parent | random: add GRND_INSECURE to return best-effort non-cryptographic bytes (diff) | |
| download | linux-dev-48446f198f9adcb499b30332488dfd5bc3f176f6.tar.xz linux-dev-48446f198f9adcb499b30332488dfd5bc3f176f6.zip | |
random: ignore GRND_RANDOM in getentropy(2)
The separate blocking pool is going away. Start by ignoring
GRND_RANDOM in getentropy(2).
This should not materially break any API. Any code that worked
without this change should work at least as well with this change.
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/705c5a091b63cc5da70c99304bb97e0109be0a26.1577088521.git.luto@kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'drivers/char/random.c')
| -rw-r--r-- | drivers/char/random.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index b7e2ad7eafca..a92dfea038ce 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -2207,9 +2207,6 @@ SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count, if (count > INT_MAX) count = INT_MAX; - if (flags & GRND_RANDOM) - return _random_read(flags & GRND_NONBLOCK, buf, count); - if (!(flags & GRND_INSECURE) && !crng_ready()) { if (flags & GRND_NONBLOCK) return -EAGAIN; |