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Quentin Monnet 146882a37d tools: bpftool: make error message from getopt_long() JSON-friendly
If `getopt_long()` meets an unknown option, it prints its own error
message to standard error output. While this does not strictly break
JSON output, it is the only case bpftool prints something to standard
error output if JSON output is required. All other errors are printed on
standard output as JSON objects, so that an external program does not
have to parse stderr.

This is changed by setting the global variable `opterr` to 0.
Furthermore, p_err() is used to reproduce the error message in a more
JSON-friendly way, so that users still get to know what the erroneous
option is.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
2017-11-30 02:09:29 +01:00
arch This pull request contains the following core changes: 2017-11-22 20:46:06 -10:00
block Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 12:08:18 -08:00
certs License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
crypto Keys devel 2017-11-24 11:54:11 +11:00
Documentation fixes/cleanups for rc1, non-desktop flags for VR 2017-11-23 21:04:56 -10:00
drivers xen-netfront: remove warning when unloading module 2017-11-27 14:21:58 -05:00
firmware License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
fs Changes since last update: 2017-11-22 20:42:42 -10:00
include Four fixes: 2017-11-28 01:09:42 +09:00
init EXPERT Kconfig menu: fix broken EXPERT menu 2017-11-17 16:10:05 -08:00
ipc Merge branch 'akpm' (patches from Andrew) 2017-11-17 16:56:17 -08:00
kernel bpf: offload: add a license header 2017-11-27 22:24:51 +01:00
lib This pull request contains the following core changes: 2017-11-22 20:46:06 -10:00
mm mm: add infrastructure for get_user_pages_fast() benchmarking 2017-11-17 16:10:04 -08:00
net tipc: eliminate access after delete in group_filter_msg() 2017-11-27 14:44:45 -05:00
samples media updates for v4.15-rc1 2017-11-15 20:30:12 -08:00
scripts A few late-arriving docs updates that have no real reason to wait. There's 2017-11-23 21:01:32 -10:00
security Merge branch 'next-keys' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2017-11-23 20:51:27 -10:00
sound sound fixes for 4.15-rc1 2017-11-23 21:09:41 -10:00
tools tools: bpftool: make error message from getopt_long() JSON-friendly 2017-11-30 02:09:29 +01:00
usr initramfs: fix initramfs rebuilds w/ compression after disabling 2017-11-03 07:39:19 -07:00
virt Merge branch 'misc.compat' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2017-11-17 11:54:55 -08:00
.cocciconfig
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore Kbuild misc updates for v4.15 2017-11-17 17:51:33 -08:00
.mailmap Add Jason Gunthorpe as co-maintainer of the RDMA stack 2017-11-17 09:36:18 -08:00
COPYING
CREDITS MAINTAINERS: update TPM driver infrastructure changes 2017-11-09 17:58:40 -08:00
Kbuild Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
Kconfig License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
MAINTAINERS RTC for 4.15 2017-11-22 20:58:23 -10:00
Makefile Kbuild updates for v4.15 2017-11-17 17:45:29 -08:00
README README: add a new README file, pointing to the Documentation/ 2016-10-24 08:12:35 -02:00

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

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.