Linus Torvalds 52f6c588c7 Add wait_for_random_bytes() and get_random_*_wait() functions so that ... callers can more safely get random bytes if they can block until the CRNG is initialized. Also print a warning if get_random_*() is called before the CRNG is initialized. By default, only one single-line warning will be printed per boot. If CONFIG_WARN_ALL_UNSEEDED_RANDOM is defined, then a warning will be printed for each function which tries to get random bytes before the CRNG is initialized. This can get spammy for certain architecture types, so it is not enabled by default. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEEK2m5VNv+CHkogTfJ8vlZVpUNgaMFAllqXNUACgkQ8vlZVpUN gaPtAgf/aUbXZuWYsDQzslHsbzEWi+qz4QgL885/w4L00pEImTTp91Q06SDxWhtB KPvGnZHS3IofxBh2DC+6AwN6dPMoWDCfYhhO6po3FSz0DiPRIQCTuvOb8fhKY1X7 rTdDq2xtDxPGxJ25bMJtlrgzH2XlXPpVyPUeoc9uh87zUK5aesXpUn9kBniRexoz ume+M/cDzPKkwNQpbLq8vzhNjoWMVv0FeW2akVvrjkkWko8nZLZ0R/kIyKQlRPdG LZDXcz0oTHpDS6+ufEo292ZuWm2IGer2YtwHsKyCAsyEWsUqBz2yurtkSj3mAVyC hHafyS+5WNaGdgBmg0zJxxwn5qxxLg== =ua7p -----END PGP SIGNATURE----- Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random Pull random updates from Ted Ts'o: "Add wait_for_random_bytes() and get_random_*_wait() functions so that callers can more safely get random bytes if they can block until the CRNG is initialized. Also print a warning if get_random_*() is called before the CRNG is initialized. By default, only one single-line warning will be printed per boot. If CONFIG_WARN_ALL_UNSEEDED_RANDOM is defined, then a warning will be printed for each function which tries to get random bytes before the CRNG is initialized. This can get spammy for certain architecture types, so it is not enabled by default" * tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: random: reorder READ_ONCE() in get_random_uXX random: suppress spammy warnings about unseeded randomness random: warn when kernel uses unseeded randomness net/route: use get_random_int for random counter net/neighbor: use get_random_u32 for 32-bit hash random rhashtable: use get_random_u32 for hash_rnd ceph: ensure RNG is seeded before using iscsi: ensure RNG is seeded before use cifs: use get_random_u32 for 32-bit lock random random: add get_random_{bytes,u32,u64,int,long,once}_wait family random: add wait_for_random_bytes() API		2017-07-15 12:44:02 -07:00
..
agp	agp: use set_memory.h header	2017-05-08 17:15:13 -07:00
hw_random	hwrng: mtk - add runtime PM support	2017-06-20 11:21:28 +08:00
ipmi	Some small fixes for IPMI, and one medium sized changed.	2017-07-10 10:59:29 -07:00
mwave	Annotate hardware config module parameters in drivers/char/mwave/	2017-04-20 12:02:32 +01:00
pcmcia	networking: introduce and use skb_put_data()	2017-06-16 11:48:37 -04:00
tpm	tpm: do not suspend/resume if power stays on	2017-07-07 09:49:26 +10:00
xilinx_hwicap
xillybus
apm-emulation.c
applicom.c	Annotate hardware config module parameters in drivers/char/	2017-04-20 12:02:32 +01:00
applicom.h
bfin-otp.c
bsr.c
ds1302.c
ds1620.c
dsp56k.c	format-security: move static strings to const	2017-05-08 17:15:14 -07:00
dtlk.c
efirtc.c
generic_nvram.c
hangcheck-timer.c	hangcheck-timer: Fix typo in comment	2017-04-08 18:08:54 +02:00
hpet.c	hpet: Make cmd parameter of hpet_ioctl_common() unsigned	2017-03-17 15:10:49 +09:00
Kconfig	arm64 updates for 4.13:	2017-07-05 17:09:27 -07:00
lp.c	char: lp: fix possible integer overflow in lp_setup()	2017-05-16 23:05:20 +02:00
Makefile	mmtimer: Remove the SGI SN2 mmtimer driver	2017-05-26 12:52:19 +02:00
mbcs.c
mbcs.h
mem.c	drivers: char: mem: Fix wraparound check to allow mappings up to the end	2017-06-03 18:56:04 +09:00
misc.c	drivers: char: misc: Replace printk with pr_err.	2017-04-08 17:53:06 +02:00
mspec.c	drivers, char: convert vma_data.refcnt from atomic_t to refcount_t	2017-03-23 13:57:19 +01:00
nsc_gpio.c
nvram.c
nwbutton.c	drivers/char/nwbutton: Fix build breakage caused by include file reshuffling	2017-03-07 08:35:49 +01:00
nwbutton.h
nwflash.c
pc8736x_gpio.c
powernv-op-panel.c
ppdev.c	ppdev: fix registering same device name	2017-03-16 17:32:21 +09:00
ps3flash.c
random.c	Add wait_for_random_bytes() and get_random_*_wait() functions so that	2017-07-15 12:44:02 -07:00
raw.c
rtc.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
scx200_gpio.c
snsc_event.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
snsc.c	sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>	2017-03-02 08:42:32 +01:00
snsc.h
sonypi.c	scripts/spelling.txt: add "initialiazation" pattern and fix typo instances	2017-02-27 18:43:47 -08:00
tb0219.c
tile-srom.c
tlclk.c
toshiba.c
ttyprintk.c
uv_mmtimer.c
virtio_console.c	virtio: fixes, cleanups, performance	2017-05-10 11:33:08 -07:00