diff options
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/trace_events/trace-events-sample.h | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/samples/trace_events/trace-events-sample.h b/samples/trace_events/trace-events-sample.h index 500981eca74d..55f9a3da92d5 100644 --- a/samples/trace_events/trace-events-sample.h +++ b/samples/trace_events/trace-events-sample.h @@ -136,10 +136,11 @@ * * To assign a string, use the helper macro __assign_str(). * - * __assign_str(foo, bar); + * __assign_str(foo); * - * In most cases, the __assign_str() macro will take the same - * parameters as the __string() macro had to declare the string. + * The __string() macro saves off the string that is passed into + * the second parameter, and the __assign_str() will store than + * saved string into the "foo" field. * * __vstring: This is similar to __string() but instead of taking a * dynamic length, it takes a variable list va_list 'va' variable. @@ -177,7 +178,7 @@ * The length is saved via the __string_len() and is retrieved in * __assign_str(). * - * __assign_str(foo, bar); + * __assign_str(foo); * * Then len + 1 is allocated to the ring buffer, and a nul terminating * byte is added. This is similar to: @@ -311,8 +312,8 @@ TRACE_EVENT(foo_bar, __entry->bar = bar; memcpy(__get_dynamic_array(list), lst, __length_of(lst) * sizeof(int)); - __assign_str(str, string); - __assign_str(lstr, foo); + __assign_str(str); + __assign_str(lstr); __assign_vstr(vstr, fmt, va); __assign_bitmask(cpus, cpumask_bits(mask), num_possible_cpus()); __assign_cpumask(cpum, cpumask_bits(mask)); @@ -418,7 +419,7 @@ TRACE_EVENT_CONDITION(foo_bar_with_cond, ), TP_fast_assign( - __assign_str(foo, foo); + __assign_str(foo); __entry->bar = bar; ), @@ -459,7 +460,7 @@ TRACE_EVENT_FN(foo_bar_with_fn, ), TP_fast_assign( - __assign_str(foo, foo); + __assign_str(foo); __entry->bar = bar; ), @@ -506,7 +507,7 @@ DECLARE_EVENT_CLASS(foo_template, ), TP_fast_assign( - __assign_str(foo, foo); + __assign_str(foo); __entry->bar = bar; ), |