linux/drivers
Dominik Brodowski a43bed8220 hwrng: core - credit entropy for low quality sources of randomness
In case the entropy quality is low, there may be less than one bit to
credit in the call to add_hwgenerator_randomness(): The number of bytes
returned by rng_get_data() multiplied by the current quality (in entropy
bits per 1024 bits of input) must be larger than 128 to credit at least
one bit. However, imx-rngc.c sets the quality to 19, but may return less
than 32 bytes; hid_u2fzero.c sets the quality to 1; and users may override
the quality setting manually.

In case there is less than one bit to credit, keep track of it and add
that credit to the next iteration.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2022-02-05 15:10:51 +11:00
..
accessibility Char/Misc and other driver changes for 5.17-rc1 2022-01-14 16:02:28 +01:00
acpi Merge branch 'akpm' (patches from Andrew) 2022-01-22 11:28:23 +02:00
amba
android
ata ata: pata_octeon_cf: fix call to trace_ata_bmdma_stop() 2022-01-21 18:39:16 +09:00
atm atm: iphase: remove redundant pointer skb 2022-01-13 12:50:48 +00:00
auxdisplay
base firmware_loader: move firmware sysctl to its own files 2022-01-22 08:33:35 +02:00
bcma
block bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
bluetooth virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
bus pci-v5.17-changes 2022-01-16 08:08:11 +02:00
cdrom cdrom: simplify subdirectory registration with register_sysctl() 2022-01-22 08:33:35 +02:00
char hwrng: core - credit entropy for low quality sources of randomness 2022-02-05 15:10:51 +11:00
clk Some hot fixes for clk driver patches merged last week 2022-01-21 09:16:11 +02:00
clocksource - Refactor resource allocation on the Exynos_mct driver without 2022-01-10 13:53:16 +01:00
comedi
connector
counter counter: 104-quad-8: Fix use-after-free by quad8_irq_handler 2022-01-06 15:51:13 +01:00
cpufreq cpufreq: amd-pstate: Fix Kconfig dependencies for AMD P-State 2022-01-06 18:31:33 +01:00
cpuidle cpuidle: use default_groups in kobj_type 2022-01-05 18:31:17 +01:00
crypto crypto: octeontx2 - increase CPT HW instruction queue length 2022-02-05 15:10:50 +11:00
cxl cxl/core: Remove cxld_const_init in cxl_decoder_alloc() 2022-01-04 17:29:31 -08:00
dax Merge branch 'akpm' (patches from Andrew) 2022-01-15 20:37:06 +02:00
dca
devfreq
dio
dma dmaengine updates for v5.17-rc1 2022-01-18 14:03:34 +02:00
dma-buf drm fixes for 5.17-rc1: 2022-01-16 06:52:38 +02:00
edac - Add support for version 3 of the Synopsys DDR controller to synopsys_edac 2022-01-10 11:45:23 -08:00
eisa
extcon
firewire
firmware RISC-V: Introduce sv48 support without relocatable kernel 2022-01-19 19:37:44 -08:00
fpga
fsi
gnss
gpio gpio fixes for v5.17-rc1 2022-01-20 17:38:23 +02:00
gpu bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
greybus
hid HID: wacom: Avoid using stale array indicies to read contact count 2022-01-21 15:10:02 +01:00
hsi
hv hyperv-next for 5.17 2022-01-16 15:53:00 +02:00
hwmon bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
hwspinlock
hwtracing
i2c virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
i3c i3c: master: dw: check return of dw_i3c_master_get_free_pos() 2022-01-13 02:05:50 +01:00
idle
iio bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
infiniband bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
input Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2022-01-17 08:27:55 +02:00
interconnect
iommu virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
ipack
irqchip Rework of the MSI interrupt infrastructure: 2022-01-13 09:05:29 -08:00
isdn
leds LED updates for 5.17. Nothing major is happening here. 2022-01-12 16:59:22 -08:00
macintosh macintosh/mac_hid.c: simplify subdirectory registration with register_sysctl() 2022-01-22 08:33:35 +02:00
mailbox - qcom: misc updates to qcom-ipcc driver 2022-01-13 11:19:07 -08:00
mcb
md dax + libnvdimm for v5.17 2022-01-12 15:46:11 -08:00
media bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
memory MTD core changes: 2022-01-11 11:35:28 -08:00
memstick
message scsi: message: fusion: mptctl: Use dma_alloc_coherent() 2022-01-10 10:33:52 -05:00
mfd driver core changes for 5.17-rc1 2022-01-12 11:11:34 -08:00
misc pci-v5.17-changes 2022-01-16 08:08:11 +02:00
mmc bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
most
mtd - added support for more BCM47XX based devices 2022-01-14 15:08:36 +01:00
mux
net crypto: octeontx2 - disable DMA black hole on an DMA fault 2022-02-05 15:10:50 +11:00
nfc nfc: st21nfca: Fix potential buffer overflows in EVT_TRANSACTION 2022-01-12 14:17:45 +00:00
ntb New AMD PCI ID for NTB, and a number of bug fixes for ntb_hw_switchtec 2022-01-17 08:14:18 +02:00
nubus proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
nvdimm virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
nvme for-5.17/drivers-2022-01-11 2022-01-12 10:35:23 -08:00
nvmem
of Devicetree fixes for v5.17, take 1: 2022-01-22 09:52:17 +02:00
opp
parisc Merge branch 'akpm' (patches from Andrew) 2022-01-22 11:28:23 +02:00
parport
pci bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
pcmcia pci-v5.17-changes 2022-01-16 08:08:11 +02:00
perf Rework of the MSI interrupt infrastructure: 2022-01-13 09:05:29 -08:00
phy Char/Misc and other driver changes for 5.17-rc1 2022-01-14 16:02:28 +01:00
pinctrl Pin control bulk changes for the v5.17 kernel cycle 2022-01-12 10:56:08 -08:00
platform proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
pnp proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
power platform-drivers-x86 for v5.17-1 2022-01-11 11:26:57 -08:00
powercap
pps
ps3
ptp net: fix SOF_TIMESTAMPING_BIND_PHC to work with multiple sockets 2022-01-06 12:18:08 +00:00
pwm pwm: Changes for v5.17-rc1 2022-01-20 13:25:01 +02:00
rapidio
ras
regulator regulator: Add MAX20086-MAX20089 driver 2022-01-07 13:36:35 +00:00
remoteproc remoteproc: stm32: Improve crash recovery time 2022-01-03 11:40:45 -07:00
reset SoC: Add support for StarFive JH7100 RISC-V SoC 2022-01-10 08:32:37 -08:00
rpmsg virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
rtc rtc: sunplus: fix return value in sp_rtc_probe() 2022-01-16 23:50:34 +01:00
s390 dax + libnvdimm for v5.17 2022-01-12 15:46:11 -08:00
sbus
scsi bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
sh
siox
slimbus
soc bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
soundwire Char/Misc and other driver changes for 5.17-rc1 2022-01-14 16:02:28 +01:00
spi sound updates for 5.17-rc1 2022-01-14 14:55:38 +01:00
spmi
ssb
staging Merge branch 'signal-for-v5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2022-01-17 05:49:30 +02:00
target
tc
tee ARM: SoC driver updates for v5.17 2022-01-10 08:13:52 -08:00
thermal thermal: int340x: Add Raptor Lake PCI device id 2022-01-17 19:48:07 +01:00
thunderbolt
tty bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
uio
usb proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
vdpa virtio,vdpa,qemu_fw_cfg: features, cleanups, fixes 2022-01-18 10:05:48 +02:00
vfio VFIO updates for v5.17-rc1 2022-01-20 13:31:46 +02:00
vhost vdpa: Protect vdpa reset with cf_mutex 2022-01-14 18:50:54 -05:00
video drm fixes for 5.17-rc1: 2022-01-16 06:52:38 +02:00
virt bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
virtio vdpa: Allow to configure max data virtqueues 2022-01-14 18:50:53 -05:00
visorbus
vlynq
vme
w1
watchdog linux-watchdog 5.17-rc1 tag 2022-01-17 08:07:57 +02:00
xen arm/xen: Read extended regions from DT and init Xen resource 2022-01-06 09:53:41 +01:00
zorro proc: remove PDE_DATA() completely 2022-01-22 08:33:37 +02:00
Kconfig
Makefile