Alexei Starovoitov e430f34ee5 net: filter: cleanup A/X name usage ... The macro 'A' used in internal BPF interpreter: #define A regs[insn->a_reg] was easily confused with the name of classic BPF register 'A', since 'A' would mean two different things depending on context. This patch is trying to clean up the naming and clarify its usage in the following way: - A and X are names of two classic BPF registers - BPF_REG_A denotes internal BPF register R0 used to map classic register A in internal BPF programs generated from classic - BPF_REG_X denotes internal BPF register R7 used to map classic register X in internal BPF programs generated from classic - internal BPF instruction format: struct sock_filter_int { __u8 code; /* opcode */ __u8 dst_reg:4; /* dest register */ __u8 src_reg:4; /* source register */ __s16 off; /* signed offset */ __s32 imm; /* signed immediate constant */ }; - BPF_X/BPF_K is 1 bit used to encode source operand of instruction In classic: BPF_X - means use register X as source operand BPF_K - means use 32-bit immediate as source operand In internal: BPF_X - means use 'src_reg' register as source operand BPF_K - means use 32-bit immediate as source operand Suggested-by: Chema Gonzalez <chema@google.com> Signed-off-by: Alexei Starovoitov <ast@plumgrid.com> Acked-by: Daniel Borkmann <dborkman@redhat.com> Acked-by: Chema Gonzalez <chema@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-06-11 00:13:16 -07:00
..
ABI	net: cdc_ncm: document the sysfs API	2014-06-02 16:01:31 -07:00
DocBook	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2014-06-03 23:32:12 -07:00
EDID	…
PCI	…
RCU	…
accounting	…
acpi	…
aoe	…
arm	…
arm64	- Documentation clarification on CPU topology and booting requirements	2014-04-08 12:06:03 -07:00
auxdisplay	…
backlight	…
blackfin	…
block	…
blockdev	zram: propagate error to user	2014-04-07 16:36:02 -07:00
bus-devices	…
cdrom	…
cgroups	memcg: rename high level charging functions	2014-04-07 16:35:57 -07:00
connector	…
console	…
cpu-freq	…
cpuidle	…
cris	…
crypto	…
development-process	…
device-mapper	dm thin: add 'no_space_timeout' dm-thin-pool module param	2014-05-20 14:30:36 -04:00
devicetree	amd-xgbe: AMD 10GbE device bindings documentation	2014-06-05 15:26:51 -07:00
driver-model	mdio_bus: implement devm_mdiobus_alloc/devm_mdiobus_free	2014-05-02 16:16:26 -04:00
dvb	…
early-userspace	…
extcon	…
fault-injection	…
fb	…
filesystems	Documentation: update /proc/stat "intr" count summary	2014-05-25 12:39:00 -07:00
firmware_class	…
fmc	…
frv	…
gpio	…
hid	HID: uhid: Add UHID_CREATE2 + UHID_INPUT2	2014-04-01 18:27:33 +02:00
hwmon	hwmon: Document temp[1-*]_min_hyst sysfs attribute	2014-05-25 17:23:07 +02:00
i2c	Documentation: i2c: improve section about flags mangling the protocol	2014-04-06 13:53:48 +02:00
i2o	…
ia64	…
ide	…
infiniband	…
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2014-05-08 14:06:45 -07:00
ioctl	…
isdn	…
ja_JP	Documentation: Update stable address in Chinese and Japanese translations	2014-04-16 14:13:27 -07:00
kbuild	kconfig: make allnoconfig disable options behind EMBEDDED and EXPERT	2014-04-07 16:36:09 -07:00
kdump	…
ko_KR	…
laptops	…
leds	…
m68k	…
make	…
memory-devices	…
metag	…
mic	…
mips	…
misc-devices	…
mmc	…
mn10300	…
mtd	…
namespaces	…
netlabel	…
networking	net: filter: cleanup A/X name usage	2014-06-11 00:13:16 -07:00
nfc	…
parisc	…
pcmcia	…
phy	…
power	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2014-04-02 16:23:38 -07:00
powerpc	…
pps	…
prctl	…
pti	…
ptp	…
rapidio	rapidio: rework device hierarchy and introduce mport class of devices	2014-04-07 16:36:07 -07:00
s390	…
scheduler	asm/system.h: clean asm/system.h from docs	2014-04-07 16:36:11 -07:00
scsi	…
security	…
serial	Documentation/serial: Delete obsolete driver documentation	2014-04-16 14:20:34 -07:00
sh	…
sound	…
spi	…
sysctl	hung_task: check the value of "sysctl_hung_task_timeout_sec"	2014-04-07 16:36:07 -07:00
target	…
thermal	…
timers	…
tpm	…
trace	Most of the changes were largely clean ups, and some documentation.	2014-04-03 10:26:31 -07:00
usb	…
vDSO	…
video4linux	…
virtual	KVM: s390: announce irqfd capability	2014-05-15 10:55:10 +02:00
vm	Documentation/vm/numa_memory_policy.txt: fix wrong document in numa_memory_policy.txt	2014-04-18 16:40:08 -07:00
w1	…
watchdog	…
wimax	…
x86	…
xtensa	…
zh_CN	driver core fixes for 3.15-rc2	2014-04-18 16:59:52 -07:00
.gitignore	…
00-INDEX	Merge branch 'x86-nuke-platforms-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2014-04-02 13:15:58 -07:00
BUG-HUNTING	…
Changes	…
CodingStyle	…
DMA-API-HOWTO.txt	…
DMA-API.txt	…
DMA-ISA-LPC.txt	…
DMA-attributes.txt	…
HOWTO	…
IPMI.txt	…
IRQ-affinity.txt	…
IRQ-domain.txt	…
IRQ.txt	…
Intel-IOMMU.txt	…
Makefile	…
ManagementStyle	…
SAK.txt	…
SM501.txt	…
SecurityBugs	…
SubmitChecklist	…
SubmittingDrivers	…
SubmittingPatches	Documentation/SubmittingPatches: update some dead URLs	2014-04-03 16:21:27 -07:00
VGA-softcursor.txt	…
applying-patches.txt	…
assoc_array.txt	…
atomic_ops.txt	…
bad_memory.txt	…
basic_profiling.txt	…
bcache.txt	…
binfmt_misc.txt	…
braille-console.txt	…
bt8xxgpio.txt	…
btmrvl.txt	…
bus-virt-phys-mapping.txt	…
cachetlb.txt	…
circular-buffers.txt	…
clk.txt	…
coccinelle.txt	…
cpu-hotplug.txt	…
cpu-load.txt	…
cputopology.txt	…
crc32.txt	…
dcdbas.txt	…
debugging-modules.txt	…
debugging-via-ohci1394.txt	firewire: revert to 4 GB RDMA, fix protocols using Memory Space	2014-05-29 15:50:30 +02:00
dell_rbu.txt	…
devices.txt	Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media	2014-04-04 09:50:07 -07:00
digsig.txt	…
dma-buf-sharing.txt	…
dmaengine.txt	…
dmatest.txt	…
dontdiff	Documentation: LLVMLinux: Update Documentation/dontdiff	2014-04-09 13:44:34 -07:00
dynamic-debug-howto.txt	…
edac.txt	…
efi-stub.txt	…
eisa.txt	…
email-clients.txt	Documentation: update thunderbird email client settings	2014-05-25 12:39:00 -07:00
flexible-arrays.txt	…
futex-requeue-pi.txt	…
gcov.txt	…
highuid.txt	…
hw_random.txt	…
hwspinlock.txt	…
init.txt	…
initrd.txt	…
intel_txt.txt	…
io-mapping.txt	…
io_ordering.txt	…
iostats.txt	…
irqflags-tracing.txt	asm/system.h: clean asm/system.h from docs	2014-04-07 16:36:11 -07:00
isapnp.txt	…
java.txt	Documentation: update java sample wrapper for java 7	2014-05-25 12:39:00 -07:00
kernel-doc-nano-HOWTO.txt	…
kernel-docs.txt	…
kernel-parameters.txt	x86, rdrand: When nordrand is specified, disable RDSEED as well	2014-05-11 20:25:20 -07:00
kernel-per-CPU-kthreads.txt	…
kmemcheck.txt	…
kmemleak.txt	Documentation/kmemleak.txt: updates	2014-04-03 16:21:27 -07:00
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	Documentation/serial: Delete obsolete driver documentation	2014-04-16 14:20:34 -07:00
md.txt	…
media-framework.txt	…
memory-barriers.txt	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	2014-04-02 16:23:38 -07:00
memory-hotplug.txt	…
module-signing.txt	Nothing major: the stricter permissions checking for sysfs broke	2014-04-06 09:38:07 -07:00
mono.txt	…
mutex-design.txt	…
nommu-mmap.txt	…
numastat.txt	…
oops-tracing.txt	…
padata.txt	…
parport-lowlevel.txt	…
parport.txt	…
percpu-rw-semaphore.txt	…
phy.txt	…
pi-futex.txt	…
pinctrl.txt	…
pnp.txt	…
preempt-locking.txt	…
printk-formats.txt	…
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	…
serial-console.txt	…
sgi-ioc4.txt	…
smsc_ece1099.txt	…
sparse.txt	…
spinlocks.txt	…
stable_api_nonsense.txt	…
stable_kernel_rules.txt	stable_kernel_rules: spelling/word usage	2014-04-16 14:13:26 -07:00
static-keys.txt	…
svga.txt	…
sysfs-rules.txt	…
sysrq.txt	…
this_cpu_ops.txt	…
unaligned-memory-access.txt	…
unicode.txt	…
unshare.txt	…
vfio.txt	…
vgaarbiter.txt	…
video-output.txt	…
vme_api.txt	…
volatile-considered-harmful.txt	…
workqueue.txt	…
ww-mutex-design.txt	…
xz.txt	…
zorro.txt	…