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Filename Latest commit message Latest commit date
Yonghong Song 9d0b3c1f14 tools/bpf: fix a netlink recv issue 
Commit f7010770fb ("tools/bpf: move bpf/lib netlink related
functions into a new file") introduced a while loop for the
netlink recv path. This while loop is needed since the
buffer in recv syscall may not be enough to hold all the
information and in such cases multiple recv calls are needed.

There is a bug introduced by the above commit as
the while loop may block on recv syscall if there is no
more messages are expected. The netlink message header
flag NLM_F_MULTI is used to indicate that more messages
are expected and this patch fixed the bug by doing
further recv syscall only if multipart message is expected.

The patch added another fix regarding to message length of 0.
When netlink recv returns message length of 0, there will be
no more messages for returning data so the while loop
can end.

Fixes: f7010770fb ("tools/bpf: move bpf/lib netlink related functions into a new file")
Reported-by: Björn Töpel <bjorn.topel@intel.com>
Tested-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2018-09-11 14:26:30 -07:00
arch dma-mapping fixes for 4.19-rc2 2018-09-02 20:09:36 -07:00
block
certs
crypto
Documentation Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-09-04 21:33:03 -07:00
drivers net: lan743x_ptp: make function lan743x_ptp_set_sync_ts_insert() static 2018-09-05 08:07:05 -07:00
firmware
fs Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-09-02 09:41:45 -07:00
include packet: add sockopt to ignore outgoing packets 2018-09-05 22:09:37 -07:00
init
ipc
kernel bpf: add bpffs pretty print for program array map 2018-09-11 14:17:24 -07:00
lib Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-09-02 09:41:45 -07:00
LICENSES
mm notifier: Remove notifier header file wherever not used 2018-08-30 12:56:40 +02:00
net xdp: split code for map vs non-map redirect 2018-09-06 22:34:08 -07:00
samples samples/bpf: xdpsock, minor fixes 2018-09-01 01:36:08 +02:00
scripts Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2018-09-02 10:11:30 -07:00
security
sound
tools tools/bpf: fix a netlink recv issue 2018-09-11 14:26:30 -07:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS dpaa2-eth: Move DPAA2 Ethernet driver from staging to drivers/net 2018-09-01 17:16:59 -07:00
Makefile Linux 4.19-rc2 2018-09-02 14:37:30 -07:00
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.
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.