# Re: (mostly) Arch-independent livepatch

- From: Jessica Yu \<hidden\>
- Date: 2016-03-29 21:13:37 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2016/03/4717869
- Thread: https://ratatoskr.run/linux-api/2016/03/4714275/t.md

```text
+++ Jessica Yu [22/03/16 20:03 -0400]:
>
>Patches based on linux-next.
>
>Previous patchset (v5) found here:
>http://lkml.kernel.org/g/1458157628-8264-1-git-send-email-jeyu@redhat.com
>
>v6:
> - Since we hard-code the field widths for the objname and symbol name
>   for the sscanf() calls, which are supposed to correspond to the values
>   of MODULE_NAME_LEN and KSYM_NAME_LEN, use BUILD_BUG_ON() to detect when
>   the values of these constants deviate from the expected values.
> - Squash the sample livepatch module patch into patch 4
>   ("livepatch: reuse module loader code to write relocations") so
>   git bisects don't break
> - Don't need the klp_buf struct, just use plain char arrays to hold the
>   output of sscanf(). Also, no need to clear the bufs after every
>   invocation, as sscanf() takes care to put a null byte at the end of
>   the bufs.
> - Fix compiler kbuild errors for the !CONFIG_LIVEPATCH case
> - Fixed some small module.c nits
>

Pinging Rusty, just in case this thread got buried :-)
How do the module.c changes look?

Thanks,
Jessica
```