I am not user of p_usrloc, but accidentally compiled this and bumped into mentioned warning.
Clang 3.0 and GCC 4.7 do not complain.
Clang 3.5 and GCC 4.8 do complain.

You can view, comment on, or merge this pull request online at:

  https://github.com/kamailio/kamailio/pull/299

Commit Summary

• modules/p_usrloc: fixes get_all_ucontacts() function signature

File Changes

• M modules/p_usrloc/dlist.c (2)
• M modules/p_usrloc/dlist.h (2)

Patch Links:

• https://github.com/kamailio/kamailio/pull/299.patch
• https://github.com/kamailio/kamailio/pull/299.diff

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