lkml.org 
[lkml]   [2019]   [Feb]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/2 v2] kprobe: Do not use uaccess functions to access kernel memory that can fault
On Thu, 21 Feb 2019 01:04:53 +0900
Masami Hiramatsu <mhiramat@kernel.org> wrote:

> > What about just adding 'u' to the end of the offset? Say you have a
> > data structure in kernel space that has a field in user space you want
> > to reference?
> >
> >
> > field_val=+8u(+0(%si))
>
> Ah, that looks good :~) thank you for this idea!

<bike-shed>

Hmm, I wonder if we should make it +u8 or u+8? as +8u may be confused
as unsigned? Like 8ULL. I don't know. Kernel developers suck at
naming :-p

</bike-shed>

-- Steve

\
 
 \ /
  Last update: 2019-02-20 17:43    [W:0.118 / U:2.984 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site