linux-toradex.git/include/net/icmp.h, branch v5.0

net: Add __icmp_send helper.

2019-02-25T22:32:35+00:00

Add __icmp_send function having ip_options struct parameter

Signed-off-by: Sergey Nazarov 
Reviewed-by: Paul Moore 
Signed-off-by: David S. Miller

net: Convert protocol error handlers from void to int

2018-11-09T01:13:08+00:00

We'll need this to handle ICMP errors for tunnels without a sending socket
(i.e. FoU and GUE). There, we might have to look up different types of IP
tunnels, registered as network protocols, before we get a match, so we
want this for the error handlers of IPPROTO_IPIP and IPPROTO_IPV6 in both
inet_protos and inet6_protos. These error codes will be used in the next
patch.

For consistency, return sensible error codes in protocol error handlers
whenever handlers can't handle errors because, even if valid, they don't
match a protocol or any of its states.

This has no effect on existing error handling paths.

Signed-off-by: Stefano Brivio 
Reviewed-by: Sabrina Dubroca 
Signed-off-by: David S. Miller

net: snmp: kill STATS_BH macros

2016-04-28T02:48:25+00:00

There is nothing related to BH in SNMP counters anymore,
since linux-3.0.

Rename helpers to use __ prefix instead of _BH prefix,
for contexts where preemption is disabled.

This more closely matches convention used to update
percpu variables.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: icmp: rename ICMPMSGIN_INC_STATS_BH()

2016-04-28T02:48:23+00:00

Remove misleading _BH suffix.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: rename ICMP_INC_STATS_BH()

2016-04-28T02:48:22+00:00

Rename ICMP_INC_STATS_BH() to __ICMP_INC_STATS()

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

icmp.h: Remove extern from function prototypes

2013-09-20T18:49:33+00:00

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches 
Signed-off-by: David S. Miller

ipv4: fix error handling in icmp_protocol.

2013-02-22T20:10:18+00:00

Now we handle icmp errors in each transport protocol's err_handler,
for icmp protocols, that is ping_err. Since this handler only care
of those icmp errors triggered by echo request, errors triggered
by echo reply(which sent by kernel) are sliently ignored.

So wrap ping_err() with icmp_err() to deal with those icmp errors.

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

net: cleanup unsigned to unsigned int

2012-04-15T16:44:40+00:00

Use of "unsigned int" is preferred to bare "unsigned" in net tree.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: remove unused icmp_ioctl() definition.

2012-04-02T08:33:46+00:00

The patch removes unused icmp_ioctl() method definition in
include/net/icmp.h.

Signed-off-by: Rami Rosen 
Signed-off-by: David S. Miller

ipv4: reduce percpu needs for icmpmsg mibs

2011-11-09T21:04:20+00:00

Reading /proc/net/snmp on a machine with a lot of cpus is very expensive
(can be ~88000 us).

This is because ICMPMSG MIB uses 4096 bytes per cpu, and folding values
for all possible cpus can read 16 Mbytes of memory.

ICMP messages are not considered as fast path on a typical server, and
eventually few cpus handle them anyway. We can afford an atomic
operation instead of using percpu data.

This saves 4096 bytes per cpu and per network namespace.

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller