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ftrace: Remove data field from ftrace_func_probe structure

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No users of the function probes uses the data field anymore. Remove it, and
change the init function to take a void *data parameter instead of a
void **data, because the init will just get the data that the registering
function was received, and there's no state after it is called.

The other functions for ftrace_probe_ops still take the data parameter, but
it will currently only be passed NULL. It will stay as a parameter for
future data to be passed to these functions.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (VMware)
2017-04-04 10:27:51 -04:00
parent 02b77e2afb
commit 1a48df0041
5 changed files with 11 additions and 15 deletions
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5
kernel/trace/trace_events.c
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@@ -2543,11 +2543,10 @@ event_enable_print(struct seq_file *m, unsigned long ip,
static int
event_enable_init(struct ftrace_probe_ops *ops, unsigned long ip,
void **_data)
void *_data)
{
struct ftrace_func_mapper *mapper = ops->private_data;
struct event_probe_data **pdata = (struct event_probe_data **)_data;
struct event_probe_data *data = *pdata;
struct event_probe_data *data = _data;
int ret;
ret = ftrace_func_mapper_add_ip(mapper, ip, data);