Daniel Borkmann 1067964305 lib: vsprintf: add IPv4/v6 generic %p[Ii]S[pfs] format specifier ... In order to avoid making code that deals with printing both, IPv4 and IPv6 addresses, unnecessary complicated as for example ... if (sa.sa_family == AF_INET6) printk("... %pI6 ...", ..sin6_addr); else printk("... %pI4 ...", ..sin_addr.s_addr); ... it would be better to introduce a format specifier that can deal with those kind of situations internally; just as we have a "struct sockaddr" for generic mapping into "struct sockaddr_in" or "struct sockaddr_in6" as e.g. done in "union sctp_addr". Then, we could reduce the above statement into something like: printk("... %pIS ..", &sockaddr); In case our pointer is NULL, pointer() then deals with that already at an earlier point in time internally. While we're at it, support for both %piS/%pIS, where 'S' stands for sockaddr, comes (almost) for free. Additionally to that, postfix specifiers 'p', 'f' and 's' are supported as suggested and initially implemented in 2009 by Joe Perches [1]. Handling of those additional specifiers orientate on the initial RFC that was proposed. Also we support IPv6 compressed format specified by 'c' and various other IPv4 extensions as stated in the documentation part. Likely, there are many other areas than just SCTP in the kernel to make use of this extension as well. [1] http://patchwork.ozlabs.org/patch/31480/ Signed-off-by: Daniel Borkmann <dborkman@redhat.com> CC: Joe Perches <joe@perches.com> CC: linux-kernel@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>		2013-07-01 23:22:13 -07:00
..
ABI	- Lots of cleanups from Artem, including deletion of some obsolete drivers	2013-05-09 10:15:46 -07:00
accounting
acpi	Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma	2013-05-09 09:46:45 -07:00
aoe
arm	ARM: platform specific firmware interfaces for 3.10	2013-05-04 12:33:36 -07:00
arm64
auxdisplay
backlight	backlight: lp855x: remove duplicate platform data	2013-04-29 18:28:19 -07:00
blackfin
block	Documentation: cfq-iosched: update documentation help for cfq tunables	2013-04-09 14:57:06 +02:00
blockdev
bus-devices
cdrom
cgroups	mm, memcg: add rss_huge stat to memory.stat	2013-05-07 18:38:26 -07:00
connector
console
cpu-freq	Merge branch 'timers-nohz-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-05-05 13:23:27 -07:00
cpuidle	cpuidle: make a single register function for all	2013-04-23 13:45:22 +02:00
cris
crypto
development-process
device-mapper	DM RAID: Add message/status support for changing sync action	2013-04-24 11:42:43 +10:00
devicetree	can: flexcan: Use a regulator to control the CAN transceiver	2013-06-27 15:15:25 +02:00
DocBook	wireless: fix kernel-doc	2013-06-05 09:33:32 +02:00
driver-model
dvb
early-userspace
EDID	drm: Add 1600x1200 (UXGA) screen resolution to the built-in EDIDs	2013-04-12 14:06:16 +10:00
extcon
fault-injection
fb
filesystems	xfs: disable noattr2/attr2 mount options for CRC enabled filesystems	2013-06-06 10:51:34 -05:00
firmware_class
frv
hid
hwmon	hwmon: (lm75) Add support for the Dallas/Maxim DS7505	2013-05-04 14:49:36 +02:00
i2c
i2o
ia64
ide
infiniband
input
ioctl
isdn
ja_JP
kbuild	Merge branch 'misc' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2013-05-07 07:59:19 -07:00
kdump
ko_KR
laptops
leds
m68k	block: remove refs to XD disks from documentation	2013-05-17 15:17:12 +02:00
make
memory-devices
metag
mips
misc-devices	mei: bus: Add device enabling and disabling API	2013-04-08 16:57:15 -07:00
mmc
mn10300
mtd
namespaces
netlabel
networking	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next	2013-06-30 17:35:13 -07:00
nfc
parisc
PCI
pcmcia
power	PM / hibernate: Correct documentation	2013-05-14 01:58:43 +02:00
powerpc	powerpc/tm: Fix userspace stack corruption on signal delivery for active transactions	2013-06-01 08:29:23 +10:00
pps
prctl
pti
ptp
rapidio	rapidio: documentation update for enumeration changes	2013-05-24 16:22:50 -07:00
RCU	Merge commit '8700c95adb03' into timers/nohz	2013-05-02 17:54:19 +02:00
s390	s390/cio: add condev keyword to cio_ignore	2013-05-02 15:50:20 +02:00
scheduler
scsi	[SCSI] qla2xxx: Update copyright dates information in LICENSE.qla2xxx file.	2013-04-06 11:31:30 +01:00
security
serial
sh
sound	ASoC: Updates for v3.10	2013-04-15 19:45:16 +02:00
spi
sysctl	net: poll/select low latency socket support	2013-06-25 16:35:52 -07:00
target
thermal	Thermal: update documentation for thermal_zone_device_register	2013-04-27 09:16:04 +08:00
timers	nohz_full: Add documentation.	2013-04-27 16:41:43 -07:00
trace	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2013-04-30 09:36:50 -07:00
usb
vDSO
video4linux	[media] v4l2: Add a V4L2 driver for SI476X MFD	2013-04-18 21:20:34 -03:00
virtual	Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm	2013-05-05 14:47:31 -07:00
vm	mm: limit growth of 3% hardcoded other user reserve	2013-04-29 15:54:36 -07:00
w1
watchdog
wimax
x86	Merge branch 'x86-debug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-04-30 08:35:20 -07:00
xtensa	xtensa: document MMUv3 setup sequence	2013-05-09 01:07:09 -07:00
zh_CN	gpio: update gpio Chinese documentation	2013-04-16 18:47:22 +09:00
.gitignore
00-INDEX
applying-patches.txt
atomic_ops.txt
bad_memory.txt
basic_profiling.txt
bcache.txt	bcache: clarify free/available/unused space	2013-05-15 00:42:52 -07:00
binfmt_misc.txt
braille-console.txt
bt8xxgpio.txt
btmrvl.txt
BUG-HUNTING
bus-virt-phys-mapping.txt
cachetlb.txt
Changes
circular-buffers.txt
clk.txt	clk: add clk_ignore_unused option to keep boot clocks on	2013-04-27 23:03:43 -07:00
coccinelle.txt	Coccinelle: Add support to the SPFLAGS variable	2013-04-08 15:42:03 +02:00
CodingStyle
cpu-hotplug.txt
cpu-load.txt
cputopology.txt
crc32.txt
dcdbas.txt
debugging-modules.txt
debugging-via-ohci1394.txt
dell_rbu.txt
devices.txt	block: remove refs to XD disks from documentation	2013-05-17 15:17:12 +02:00
digsig.txt
DMA-API-HOWTO.txt
DMA-API.txt
DMA-attributes.txt
dma-buf-sharing.txt	dma-buf: replace dma_buf_export() with dma_buf_export_named()	2013-05-01 16:35:36 +05:30
DMA-ISA-LPC.txt
dmaengine.txt
dmatest.txt	dmatest: do not allow to interrupt ongoing tests	2013-06-08 02:13:44 +05:30
dontdiff
dynamic-debug-howto.txt
edac.txt
eisa.txt
email-clients.txt
flexible-arrays.txt
futex-requeue-pi.txt
gcov.txt
gpio.txt	Remove GENERIC_GPIO config option	2013-04-16 18:47:19 +09:00
highuid.txt
HOWTO
hw_random.txt
hwspinlock.txt
init.txt
initrd.txt
Intel-IOMMU.txt
intel_txt.txt
io-mapping.txt
io_ordering.txt
iostats.txt	iostats.txt: add easy-to-find description for field 6	2013-04-29 15:18:50 +02:00
IPMI.txt
IRQ-affinity.txt
IRQ-domain.txt
IRQ.txt
irqflags-tracing.txt
isapnp.txt
java.txt
kernel-doc-nano-HOWTO.txt
kernel-docs.txt
kernel-parameters.txt	Merge branch 'for-linus' of git://git.kernel.dk/linux-block	2013-06-12 16:42:39 -07:00
kernel-per-CPU-kthreads.txt	kthread: Document ways of reducing OS jitter due to per-CPU kthreads	2013-04-27 16:52:47 -07:00
kmemcheck.txt
kmemleak.txt
kobject.txt
kprobes.txt
kref.txt
ldm.txt
local_ops.txt
lockdep-design.txt
lockstat.txt
lockup-watchdogs.txt
logo.gif
logo.txt
magic-number.txt
Makefile
ManagementStyle
md.txt	MD: Fix typos in MD documentation	2013-04-24 11:42:42 +10:00
media-framework.txt
memory-barriers.txt
memory-hotplug.txt
mono.txt
mutex-design.txt
nommu-mmap.txt
numastat.txt
oops-tracing.txt
padata.txt
parport-lowlevel.txt
parport.txt
percpu-rw-semaphore.txt
pi-futex.txt
pinctrl.txt
pnp.txt
preempt-locking.txt
printk-formats.txt	lib: vsprintf: add IPv4/v6 generic %p[Ii]S[pfs] format specifier	2013-07-01 23:22:13 -07:00
pwm.txt
ramoops.txt
rbtree.txt
remoteproc.txt
rfkill.txt
robust-futex-ABI.txt
robust-futexes.txt
rpmsg.txt
rt-mutex-design.txt
rt-mutex.txt
rtc.txt
SAK.txt
SecurityBugs
serial-console.txt
sgi-ioc4.txt
sgi-visws.txt
SM501.txt
smsc_ece1099.txt
sparse.txt
spinlocks.txt
stable_api_nonsense.txt
stable_kernel_rules.txt
static-keys.txt
SubmitChecklist
SubmittingDrivers
SubmittingPatches	checkpatch: add Suggested-by as a standard signature	2013-04-29 18:28:20 -07:00
svga.txt
sysfs-rules.txt
sysrq.txt	Documentation/sysrq: fix inconstistent help message of sysrq key	2013-04-30 17:04:10 -07:00
this_cpu_ops.txt	percpu: add documentation on this_cpu operations	2013-04-04 10:24:53 -07:00
unaligned-memory-access.txt
unicode.txt
unshare.txt
vfio.txt
VGA-softcursor.txt
vgaarbiter.txt
video-output.txt
vme_api.txt
volatile-considered-harmful.txt
workqueue.txt
xz.txt
zorro.txt