Kumar Kartikeya Dwivedi a50388dbb3 bpf: Support constant scalar arguments for kfuncs ... Allow passing known constant scalars as arguments to kfuncs that do not represent a size parameter. We use mark_chain_precision for the constant scalar argument to mark it precise. This makes the search pruning optimization of verifier more conservative for such kfunc calls, and each non-distinct argument is considered unequivalent. We will use this support to then expose a bpf_obj_new function where it takes the local type ID of a type in program BTF, and returns a PTR_TO_BTF_ID | MEM_ALLOC to the local type, and allows programs to allocate their own objects. Each type ID resolves to a distinct type with a possibly distinct size, hence the type ID constant matters in terms of program safety and its precision needs to be checked between old and cur states inside regsafe. The use of mark_chain_precision enables this. Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com> Link: https://lore.kernel.org/r/20221118015614.2013203-13-memxor@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2022-11-17 19:22:13 -08:00
..
ABI	memory tier, sysfs: rename attribute "nodes" to "nodelist"	2022-10-28 13:37:22 -07:00
accounting	filemap: make the accounting of thrashing more consistent	2022-09-26 19:46:06 -07:00
admin-guide	media: vivid.rst: loop_video is set on the capture devnode	2022-10-25 16:43:54 +01:00
arc
arm	EFI updates for v6.1	2022-10-09 08:56:54 -07:00
arm64	ARM:	2022-11-06 10:46:59 -08:00
block	Documentation: document ublk user recovery feature	2022-10-18 05:12:26 -07:00
bpf	bpf: Support constant scalar arguments for kfuncs	2022-11-17 19:22:13 -08:00
cdrom
core-api	overflow: Fix kern-doc markup for functions	2022-10-25 14:57:42 -07:00
cpu-freq
crypto
dev-tools	linux-kselftest-kunit-6.1-rc1-2	2022-10-12 15:01:58 -07:00
devicetree	dt-bindings: net: qcom,ipa: restate a requirement	2022-11-11 21:23:20 -08:00
doc-guide	Rust introduction for v6.1-rc1	2022-10-03 16:39:37 -07:00
driver-api	Documentation: devres: add missing I2C helper	2022-11-02 21:16:38 +01:00
fault-injection	docs: notifier-error-inject: Correct test's name	2022-10-07 10:32:16 -06:00
fb	Documentation: fb: udlfb: clean up text and formatting	2022-09-27 13:21:44 -06:00
features
filesystems	A handful of relatively simple documentation fixes, plus a set of patches	2022-10-13 10:58:32 -07:00
firmware_class
firmware-guide	Merge branches 'acpi-misc', 'acpi-tools' and 'acpi-docs'	2022-10-03 20:03:49 +02:00
fpga
gpu	Immutable backlight-detect-refactor branch between acpi, drm-* and pdx86	2022-09-14 12:27:10 +01:00
hid
hwmon	hwmon: (corsair-psu) Add USB id of the new HX1500i psu	2022-10-22 06:59:12 -07:00
i2c	docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED	2022-09-28 21:41:59 +02:00
ia64
iio	docs: iio: add documentation for BNO055 driver	2022-09-21 18:42:56 +01:00
images
infiniband
input	Merge branch 'next' into for-linus	2022-10-09 22:30:23 -07:00
isdn
kbuild	Documentation: kbuild: Add description of git for reproducible builds	2022-10-28 00:16:29 +09:00
kernel-hacking	Documentation: Fix spelling mistake in hacking.rst	2022-10-24 11:27:51 -06:00
leds
litmus-tests
livepatch
locking	Remove duplicate words inside documentation	2022-09-27 13:21:43 -06:00
loongarch
m68k
maintainer
mhi
mips
misc-devices
mm	A handful of relatively simple documentation fixes, plus a set of patches	2022-10-13 10:58:32 -07:00
netlabel
networking	devlink: Add packet traps for 802.1X operation	2022-11-09 19:06:14 -08:00
nios2
nvdimm
openrisc
parisc
PCI
pcmcia
peci
power
powerpc	powerpc/64s: update cpu selection options	2022-09-28 19:22:10 +10:00
process	Four small fixes for the docs tree.	2022-11-01 15:11:42 -07:00
RCU	There's not a huge amount of activity in the docs tree this time around,	2022-10-03 10:23:32 -07:00
riscv	doc: RISC-V: Document that misaligned accesses are supported	2022-10-12 08:58:10 -07:00
rust	x86: enable initial Rust support	2022-09-28 09:02:45 +02:00
s390	vfio/mdev: embedd struct mdev_parent in the parent data structure	2022-10-04 12:06:58 -06:00
scheduler	docs: scheduler: Update new path for the sysctl knobs	2022-09-27 13:21:42 -06:00
scsi
security	landlock: Fix documentation style	2022-09-29 18:43:04 +02:00
sh
sound
sparc
sphinx
sphinx-static
spi
staging	docs: put atomic*.txt and memory-barriers.txt into the core-api book	2022-09-29 12:55:06 -06:00
target
timers
tools	A handful of relatively simple documentation fixes, plus a set of patches	2022-10-13 10:58:32 -07:00
trace	tracing/histogram: Update document for KEYS_MAX size	2022-10-18 15:41:56 -06:00
translations	docs/process/howto: Replace C89 with C11	2022-10-24 11:27:51 -06:00
usb
userspace-api	media fixes for v6.1-rc2	2022-10-22 15:30:15 -07:00
virt	ARM:	2022-10-11 20:07:44 -07:00
w1	Documentation: W1: minor typo corrections	2022-09-27 13:21:44 -06:00
watchdog
x86	- Get rid of a single ksize() usage	2022-10-04 10:12:08 -07:00
xtensa
.gitignore
arch.rst
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py	There's not a huge amount of activity in the docs tree this time around,	2022-10-03 10:23:32 -07:00
docutils.conf
dontdiff
index.rst	Rust introduction for v6.1-rc1	2022-10-03 16:39:37 -07:00
Kconfig
Makefile
memory-barriers.txt
SubmittingPatches
subsystem-apis.rst	docs: Rewrite the front page	2022-09-29 12:55:06 -06:00