Subject: Re: [PATCH net-next] bpf: add support for %s specifier to bpf_trace_printk()

From: Alexei Starovoitov <[email-masked]>
Date: Thu, 27 Aug 2015 18:58:32 -0700

On 8/27/15 4:43 PM, Steven Rostedt wrote:
> On Thu, 27 Aug 2015 16:20:39 -0700 (PDT)
> David Miller <[email-masked]> wrote:
>
>> From: Alexei Starovoitov <[email-masked]>
>> Date: Thu, 27 Aug 2015 16:06:14 -0700
>>
>>> Fair or you still think it should be per byte copy?
>>
>> I'm terribly surprised we don't have an equivalent of strncpy()
>> for unsafe kernel pointers.
>>
>> You probably won't be the last person to want this, and it's silly
>> to optimize it in one place and then wait for cut&paste into the
>> next guy.
>
> If it doesn't exist. Perhaps its time to create it.

all makes sense. Working on generalizing FETCH_FUNC_NAME
from trace_kprobe.c. Seems to fit quite well.