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Filename Latest commit message Latest commit date
Paul Chaignon f1977a3a58 bpf, riscv: Limit to 33 tail calls 
[ Upstream commit 96bc4432f5ade1045521f3b247f516b1478166bd ]

All BPF JIT compilers except RISC-V's and MIPS' enforce a 33-tail calls
limit at runtime.  In addition, a test was recently added, in tailcalls2,
to check this limit.

This patch updates the tail call limit in RISC-V's JIT compiler to allow
33 tail calls.  I tested it using the above selftest on an emulated
RISCV64.

Fixes: 2353ecc6f9 ("bpf, riscv: add BPF JIT for RV64G")
Reported-by: Mahshid Khezri <khezri.mahshid@gmail.com>
Signed-off-by: Paul Chaignon <paul.chaignon@orange.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Björn Töpel <bjorn.topel@gmail.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/966fe384383bf23a0ee1efe8d7291c78a3fb832b.1575916815.git.paul.chaignon@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-12 12:21:24 +01:00
arch bpf, riscv: Limit to 33 tail calls 2020-01-12 12:21:24 +01:00
block
certs
crypto
Documentation
drivers reset: Do not register resource data for missing resets 2020-01-12 12:21:21 +01:00
fs
include netfilter: uapi: Avoid undefined left-shift in xt_sctp.h 2020-01-12 12:21:17 +01:00
init
ipc
kernel locking/spinlock/debug: Fix various data races 2020-01-12 12:21:13 +01:00
lib
LICENSES
mm
net netfilter: nf_tables_offload: return EOPNOTSUPP if rule specifies no actions 2020-01-12 12:21:18 +01:00
samples
scripts
security
sound ASoC: SOF: Intel: split cht and byt debug window sizes 2020-01-12 12:21:22 +01:00
tools selftests: safesetid: Fix Makefile to set correct test program 2020-01-12 12:21:20 +01:00
usr
virt
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Makefile Linux 5.4.10 2020-01-09 10:25:53 +01:00
README

README 

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.