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Filename Latest commit message Latest commit date
Vladimir Oltean b68b0dd0fb net: dsa: Keep private info in the skb->cb
Map a DSA structure over the 48-byte control block that will hold
skb info on transmit and receive. This is only for use within the DSA
processing layer (e.g. communicating between DSA core and tagger) and
not for passing info around with other layers such as the master net
device.

Also add a DSA_SKB_CB_PRIV() macro which retrieves a pointer to the
space up to 48 bytes that the DSA structure does not use. This space can
be used for drivers to add their own private info.

One use is for the PTP timestamping code path. When cloning a skb,
annotate the original with a pointer to the clone, which the driver can
then find easily and place the timestamp to. This avoids the need of a
separate queue to hold clones and a way to match an original to a cloned
skb.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-05 21:52:42 -07:00
arch powerpc: tsi108: support of_get_mac_address new ERR_PTR error 2019-05-05 21:47:07 -07:00
block
certs
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
Documentation dt-bindings: doc: reflect new NVMEM of_get_mac_address behaviour 2019-05-05 21:47:07 -07:00
drivers net: dsa: mv88e6xxx: refine SMI support 2019-05-05 21:50:22 -07:00
fs Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
include net: dsa: Keep private info in the skb->cb 2019-05-05 21:52:42 -07:00
init
ipc
kernel Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
lib netlink: add validation of NLA_F_NESTED flag 2019-05-04 01:27:11 -04:00
LICENSES
mm
net net: dsa: Allow drivers to filter packets they can decode source port from 2019-05-05 21:52:42 -07:00
samples
scripts Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
security selinux/stable-5.1 PR 20190429 2019-04-30 08:38:02 -07:00
sound
tools Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore
.mailmap
COPYING
CREDITS
Kbuild
Kconfig
MAINTAINERS wireless-drivers-next patches for 5.2 2019-05-05 10:20:53 -07:00
Makefile Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2019-05-02 22:14:21 -04:00
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.