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| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2022-03-22 22:21:52 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-25 11:49:08 +0200 |
| commit | 2ab449c63603f14cab74cd041bc11fb578268501 (patch) | |
| tree | d10560472871c67d43ee779329345543859b9545 /drivers/char | |
| parent | 2c946656444357c5723743379e67c96576cb0e14 (diff) | |
| download | linux-stable-2ab449c63603f14cab74cd041bc11fb578268501.tar.gz linux-stable-2ab449c63603f14cab74cd041bc11fb578268501.tar.bz2 linux-stable-2ab449c63603f14cab74cd041bc11fb578268501.zip | |
random: re-add removed comment about get_random_{u32,u64} reseeding
commit dd7aa36e535797926d8eb311da7151919130139d upstream.
The comment about get_random_{u32,u64}() not invoking reseeding got
added in an unrelated commit, that then was recently reverted by
0313bc278dac ("Revert "random: block in /dev/urandom""). So this adds
that little comment snippet back, and improves the wording a bit too.
Reviewed-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/char')
| -rw-r--r-- | drivers/char/random.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c index 5672e6f9b65a..bd3e0f98dc2b 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -226,9 +226,10 @@ static void _warn_unseeded_randomness(const char *func_name, void *caller, void * * These interfaces will return the requested number of random bytes * into the given buffer or as a return value. This is equivalent to - * a read from /dev/urandom. The integer family of functions may be - * higher performance for one-off random integers, because they do a - * bit of buffering. + * a read from /dev/urandom. The u32, u64, int, and long family of + * functions may be higher performance for one-off random integers, + * because they do a bit of buffering and do not invoke reseeding + * until the buffer is emptied. * *********************************************************************/ |