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devlink: add hardware messages tracing facility

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Define a tracepoint and allow user to trace messages going to and from
hardware associated with devlink instance.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2016-07-12 18:05:03 +02:00 • committed by David S. Miller
parent 85c22bad56
commit e5224f0fe2
2 changed files with 72 additions and 0 deletions
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4
net/core/devlink.c
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@ -26,6 +26,10 @@
#include <net/net_namespace.h>
#include <net/sock.h>
#include <net/devlink.h>
#define CREATE_TRACE_POINTS
#include <trace/events/devlink.h>
EXPORT_TRACEPOINT_SYMBOL_GPL(devlink_hwmsg);
static LIST_HEAD(devlink_list);