linux.git/net/ipv4/ipconfig.c, branch v5.11

net: ipconfig: Avoid spurious blank lines in boot log

2020-11-12T22:53:33+00:00

When dumping the name and NTP servers advertised by DHCP, a blank line
is emitted if either of the lists is empty. This can lead to confusing
issues such as the blank line getting flagged as warning. This happens
because the blank line is the result of pr_cont("\n") and that may see
its level corrupted by some other driver concurrently writing to the
console.

Fix this by making sure that the terminating newline is only emitted
if at least one entry in the lists was printed before.

Reported-by: Jon Hunter 
Signed-off-by: Thierry Reding 
Link: https://lore.kernel.org/r/20201110073757.1284594-1-thierry.reding@gmail.com
Signed-off-by: Jakub Kicinski

Documentation: nfsroot.rst: Fix references to nfsroot.rst

2020-03-02T20:11:46+00:00

When converting and moving nfsroot.txt to nfsroot.rst the references to
the old text file was not updated to match the change, fix this.

Fixes: f9a9349846f92b2d ("Documentation: nfsroot.txt: convert to ReST")
Signed-off-by: Niklas Söderlund 
Reviewed-by: Geert Uytterhoeven 
Link: https://lore.kernel.org/r/20200212181332.520545-1-niklas.soderlund+renesas@ragnatech.se
Signed-off-by: Jonathan Corbet

proc: convert everything to "struct proc_ops"

2020-02-04T03:05:26+00:00

The most notable change is DEFINE_SHOW_ATTRIBUTE macro split in
seq_file.h.

Conversion rule is:

	llseek		=> proc_lseek
	unlocked_ioctl	=> proc_ioctl

	xxx		=> proc_xxx

	delete ".owner = THIS_MODULE" line

[akpm@linux-foundation.org: fix drivers/isdn/capi/kcapi_proc.c]
[sfr@canb.auug.org.au: fix kernel/sched/psi.c]
  Link: http://lkml.kernel.org/r/20200122180545.36222f50@canb.auug.org.au
Link: http://lkml.kernel.org/r/20191225172546.GB13378@avx2
Signed-off-by: Alexey Dobriyan 
Signed-off-by: Stephen Rothwell 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

net: ipconfig: Wait for deferred device probes

2019-11-20T20:39:53+00:00

If network device drives are using deferred probing, it was possible
that waiting for devices to show up in ipconfig was already over,
when the device eventually showed up. By calling wait_for_device_probe()
we now make sure deferred probing is done before checking for available
devices.

Signed-off-by: Thomas Bogendoerfer 
Signed-off-by: David S. Miller

ipconfig: Handle CONFIG_CIFS_ROOT option

2019-10-02T16:15:15+00:00

The experimental root file system support in cifs.ko relies on
ipconfig to set up the network stack and then accessing the SMB share
that contains the rootfs files.

Signed-off-by: Paulo Alcantara (SUSE) 
Signed-off-by: David S. Miller

ipconfig: add carrier_timeout kernel parameter

2019-02-01T23:24:13+00:00

commit 3fb72f1e6e61 ("ipconfig wait for carrier") added a
"wait for carrier" policy, with a fixed worst case maximum wait
of two minutes.

Now make the wait for carrier timeout configurable on the kernel
commandline and use the 120s as the default.

The timeout messages introduced with
commit 5e404cd65860 ("ipconfig: add informative timeout messages while
waiting for carrier") are done in a fixed interval of 20 seconds, just
like they were before (240/12).

Signed-off-by: Martin Kepplinger 
Signed-off-by: David S. Miller

Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

2018-12-20T19:53:36+00:00

Lots of conflicts, by happily all cases of overlapping
changes, parallel adds, things of that nature.

Thanks to Stephen Rothwell, Saeed Mahameed, and others
for their guidance in these resolutions.

Signed-off-by: David S. Miller

ipconfig: convert to DEFINE_SHOW_ATTRIBUTE

2018-12-15T19:21:22+00:00

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li 
Signed-off-by: David S. Miller

net: Allow class-e address assignment via ifconfig ioctl

2018-12-14T23:39:31+00:00

While most distributions long ago switched to the iproute2 suite
of utilities, which allow class-e (240.0.0.0/4) address assignment,
distributions relying on busybox, toybox and other forms of
ifconfig cannot assign class-e addresses without this kernel patch.

While CIDR has been obsolete for 2 decades, and a survey of all the
open source code in the world shows the IN_whatever macros are also
obsolete... rather than obsolete CIDR from this ioctl entirely, this
patch merely enables class-e assignment, sanely.

Signed-off-by: Dave Taht 
Signed-off-by: David S. Miller

net: core: dev: Add extack argument to dev_change_flags()

2018-12-06T21:26:07+00:00

In order to pass extack together with NETDEV_PRE_UP notifications, it's
necessary to route the extack to __dev_open() from diverse (possibly
indirect) callers. One prominent API through which the notification is
invoked is dev_change_flags().

Therefore extend dev_change_flags() with and extra extack argument and
update all users. Most of the calls end up just encoding NULL, but
several sites (VLAN, ipvlan, VRF, rtnetlink) do have extack available.

Since the function declaration line is changed anyway, name the other
function arguments to placate checkpatch.

Signed-off-by: Petr Machata 
Acked-by: Jiri Pirko 
Reviewed-by: Ido Schimmel 
Reviewed-by: David Ahern 
Signed-off-by: David S. Miller