diff options
| author | Jason A. Donenfeld <Jason@zx2c4.com> | 2022-03-23 07:21:52 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-30 10:29:11 +0300 |
| commit | 3967a200367c933bc52b7d32681025f843e77642 (patch) | |
| tree | ba568e1f579acd36ef81e55f5e78d5848e034fde /drivers/char/random.c | |
| parent | 25727cbbe9b462ca2ccb9a9de9e122e32328ab8e (diff) | |
| download | linux-3967a200367c933bc52b7d32681025f843e77642.tar.xz | |
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/random.c')
| -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 fd7b234c2d3e..d6b8a14c25b6 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. * *********************************************************************/ |