Hello again, Steven.
I'm pinging :)
2015-09-29 22:11 GMT+03:00 Steven Rostedt <rostedt@xxxxxxxxxxx>:
> On Tue, 29 Sep 2015 19:46:12 +0300
> Dmitry Safonov <0x7f454c46@xxxxxxxxx> wrote:
>
>> By now there isn't any subcommand for mod.
>>
>> Before:
>> sh$ echo '*:mod:ipv6:a' > set_ftrace_filter
>> sh$ echo '*:mod:ipv6' > set_ftrace_filter
>> had the same results, but now first will result in:
>> sh$ echo '*:mod:ipv6:a' > set_ftrace_filter
>> -bash: echo: write error: Invalid argument
>>
>> Also, I clarified ftrace_mod_callback code a little.
>
> Thanks for the patches. I don't have time to look at them at the moment
> as I'm trying to finish up some stuff before I leave for LinuxCon EU.
>
> If you don't hear from me by Monday, feel free to ping me again. I'll
> be in Dublin (for LinuxCon), but I should be able to take a look at the
> patches while I'm there. What do you think keynotes are for ;-)
>
> -- Steve
>
>>
>> Signed-off-by: Dmitry Safonov <0x7f454c46@xxxxxxxxx>
>> ---
>> kernel/trace/ftrace.c | 17 ++++++-----------
>> 1 file changed, 6 insertions(+), 11 deletions(-)
>>
>> diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
>> index b0623ac..f87401b 100644
>> --- a/kernel/trace/ftrace.c
>> +++ b/kernel/trace/ftrace.c
>> @@ -3564,8 +3564,7 @@ static int
>> ftrace_mod_callback(struct ftrace_hash *hash,
>> char *func, char *cmd, char *param, int enable)
>> {
>> - char *mod;
>> - int ret = -EINVAL;
>> + int ret;
>>
>> /*
>> * cmd == 'mod' because we only registered this func
>> @@ -3576,16 +3575,12 @@ ftrace_mod_callback(struct ftrace_hash *hash,
>> */
>>
>> /* we must have a module name */
>> - if (!param)
>> - return ret;
>> -
>> - mod = strsep(¶m, ":");
>> - if (!strlen(mod))
>> - return ret;
>> + if (!param || !strlen(param))
>> + return -EINVAL;
>>
>> - ret = ftrace_match_module_records(hash, func, mod);
>> - if (!ret)
>> - ret = -EINVAL;
>> + ret = ftrace_match_module_records(hash, func, param);
>> + if (ret == 0)
>> + return -EINVAL;
>> if (ret < 0)
>> return ret;
>>
>
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