0e1824c98a
Turned on that driver->owner which is struct module is not available when
modules are disabled. Better to depend on a driver name which is
always available.
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Fixes: e5224f0fe2 ("devlink: add hardware messages tracing facility")
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
#if IS_ENABLED(CONFIG_NET_DEVLINK)
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM devlink
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#if !defined(_TRACE_DEVLINK_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_DEVLINK_H
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#include <linux/device.h>
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#include <net/devlink.h>
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#include <linux/tracepoint.h>
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/*
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* Tracepoint for devlink hardware message:
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*/
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TRACE_EVENT(devlink_hwmsg,
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TP_PROTO(const struct devlink *devlink, bool incoming,
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unsigned long type, const u8 *buf, size_t len),
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TP_ARGS(devlink, incoming, type, buf, len),
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TP_STRUCT__entry(
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__string(bus_name, devlink->dev->bus->name)
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__string(dev_name, dev_name(devlink->dev))
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__string(driver_name, devlink->dev->driver->name)
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__field(bool, incoming)
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__field(unsigned long, type)
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__dynamic_array(u8, buf, len)
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__field(size_t, len)
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),
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TP_fast_assign(
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__assign_str(bus_name, devlink->dev->bus->name);
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__assign_str(dev_name, dev_name(devlink->dev));
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__assign_str(driver_name, devlink->dev->driver->name);
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__entry->incoming = incoming;
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__entry->type = type;
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memcpy(__get_dynamic_array(buf), buf, len);
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__entry->len = len;
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),
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TP_printk("bus_name=%s dev_name=%s driver_name=%s incoming=%d type=%lu buf=0x[%*phD] len=%lu",
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__get_str(bus_name), __get_str(dev_name),
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__get_str(driver_name), __entry->incoming, __entry->type,
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(int) __entry->len, __get_dynamic_array(buf), __entry->len)
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);
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#endif /* _TRACE_DEVLINK_H */
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/* This part must be outside protection */
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#include <trace/define_trace.h>
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#else /* CONFIG_NET_DEVLINK */
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#if !defined(_TRACE_DEVLINK_H)
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#define _TRACE_DEVLINK_H
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#include <net/devlink.h>
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static inline void trace_devlink_hwmsg(const struct devlink *devlink,
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bool incoming, unsigned long type,
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const u8 *buf, size_t len)
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{
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}
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#endif /* _TRACE_DEVLINK_H */
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#endif
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