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Javier Martinez Canillas ab392d2d6d drivers/net: Remove IRQF_SAMPLE_RANDOM flag from network drivers 
The IRQF_SAMPLE_RANDOM flag is marked as deprecated and will be removed.

Every input point to the kernel's entropy pool have to better document the
type of entropy source it is.

drivers/char/random.c now implements a set of interfaces that can be used for
devices to collect enviromental noise. IRQF_SAMPLE_RANDOM will be replaced
with these add_*_randomness exported functions.

Network drivers are not a good source of entropy. They use as a source of
entropy essentially a remote host. Which means that the source of entropy can
be potentially controlled by an attacker. Also, with heavy workloads the
entropy decreases due to less hardware interrupts happening thanks to irq
mitigation and NAPI.

If a system relies in its network interface as a entropy source it has a false
sense of security. Systems that don't have devices whose drivers are good
sources of entropy, should either use a hardware random number generator or
feed the kernel's entropy pool from userspace using other sources of entropy
such as EGD, video_entropyd, timer_entropyd and audio-entropyd.

Signed-off-by: Javier Martinez Canillas <martinez.javier@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2011-03-30 22:28:14 -07:00
..
accessibility
acpi acpi: Remove sysfs_create_link from video driver 2011-03-28 13:05:29 -07:00
amba
ata Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-03-30 07:50:45 -07:00
atm atm/solos-pci: Don't flap VCs when carrier state changes 2011-03-30 16:53:38 -07:00
auxdisplay
base Introduce ARCH_NO_SYSDEV_OPS config option (v2) 2011-03-23 22:16:41 +01:00
block drbd: fix up merge error 2011-03-28 07:42:58 -07:00
bluetooth
cdrom
char char/tpm: Fix unitialized usage of data buffer 2011-03-29 09:45:34 -07:00
clk
clocksource
connector connector: convert to synchronous netlink message processing 2011-03-30 17:14:33 -07:00
cpufreq cpufreq: Use syscore_ops for boot CPU suspend/resume (v2) 2011-03-23 22:16:32 +01:00
cpuidle
crypto
dca drivers/dca/dca-core.c: use list_move() instead of list_del()/list_add() combination 2011-03-22 17:44:12 -07:00
dio
dma Merge branch 'irq-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2011-03-27 20:58:56 -07:00
edac amd64_edac: Fix potential memleak 2011-03-29 18:19:06 +02:00
eisa
firewire
firmware sigma-firmware: loader for Analog Devices' SigmaStudio 2011-03-22 17:44:15 -07:00
gpio gpio: ab8500: Mark broken 2011-03-29 14:50:42 +02:00
gpu Merge branch 'drm-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 2011-03-24 17:27:20 -07:00
hid backlight: add backlight type 2011-03-22 17:43:59 -07:00
hwmon drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
hwspinlock
i2c mfd: mfd_cell is now implicitly available to timberdale drivers 2011-03-23 10:41:52 +01:00
ide ide: ensure that we re-run the queue handler 2011-03-26 19:49:54 +01:00
idle
ieee802154
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2011-03-25 21:06:37 -07:00
input drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
isdn kstrtox: convert drivers/isdn/ 2011-03-30 21:39:22 -07:00
leds Merge git://git.infradead.org/battery-2.6 2011-03-25 21:00:29 -07:00
lguest
macintosh backlight: add backlight type 2011-03-22 17:43:59 -07:00
mca
md md: Fix integrity registration error when no devices are capable 2011-03-28 17:53:29 -07:00
media [media] rc: update for bitop name changes 2011-03-24 18:58:55 -07:00
memstick memstick: make enable_dma less generic in r592 2011-03-28 16:24:29 -07:00
message Merge branch 'for-2.6.39/core' of git://git.kernel.dk/linux-2.6-block 2011-03-24 10:16:26 -07:00
mfd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc 2011-03-29 12:09:30 -07:00
misc drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
mmc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc 2011-03-29 12:09:30 -07:00
mtd Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1 2011-03-25 17:41:20 +02:00
net drivers/net: Remove IRQF_SAMPLE_RANDOM flag from network drivers 2011-03-30 22:28:14 -07:00
nfc
nubus
of of/flattree: minor cleanups 2011-03-23 14:55:56 -06:00
oprofile
parisc parisc: Convert irq namespace 2011-03-29 14:48:08 +02:00
parport
pci drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
pcmcia Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-03-30 07:50:45 -07:00
platform drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
pnp pnp: only assign IORESOURCE_DMA if CONFIG_ISA_DMA_API is enabled 2011-03-22 17:44:16 -07:00
power drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
pps pps: remove unreachable code 2011-03-22 17:44:17 -07:00
ps3
rapidio rapidio: fix potential null deref on failure path 2011-03-23 19:46:44 -07:00
regulator regulator: Add MODULE_DEVICE_TABLE to max8997 and max8998 2011-03-27 11:47:25 +01:00
rtc drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
s390 Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6 2011-03-25 17:47:04 -07:00
sbus
scsi Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-03-25 21:06:13 -07:00
sfi
sh sh: Fix irq cleanup fallout 2011-03-30 00:15:49 +02:00
sn
spi Merge branch 'devicetree/merge' of git://git.secretlab.ca/git/linux-2.6 2011-03-24 09:30:20 -07:00
ssb
staging drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
target Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2011-03-25 21:06:13 -07:00
tc
telephony
thermal
tty drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
uio
usb Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2011-03-30 07:50:45 -07:00
uwb
vhost
video Merge branch 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6 into devel-stable 2011-03-26 10:03:03 +00:00
virtio
vlynq vlynq: Convert irq functions 2011-03-28 19:33:04 +02:00
w1 drivers: Final irq namespace conversion 2011-03-29 14:48:19 +02:00
watchdog watchdog: softdog.c: enhancement to optionally invoke panic instead of reboot on timer expiry 2011-03-29 11:56:22 +00:00
xen xen: Use new irq_move functions 2011-03-29 10:01:05 -04:00
zorro
Kconfig
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