From 72762b2006cd4a6c630989600e11c98b63d0fa31 Mon Sep 17 00:00:00 2001 From: Thomas Haller Date: Fri, 1 Dec 2023 17:28:59 +0100 Subject: base: add _NL_AUTO_DEFINE_FCN_INDIRECT0() macro This is useful for a very special case. For a cleanup macro that calls rtnl_act_put_all(). In that case, we have a auto variable `struct rtnl_act *head`, but the cleanup function expects as argument `&head`. --- include/base/nl-base-utils.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/base/nl-base-utils.h b/include/base/nl-base-utils.h index 11986e9..03d568e 100644 --- a/include/base/nl-base-utils.h +++ b/include/base/nl-base-utils.h @@ -734,6 +734,14 @@ static inline char *_nl_inet_ntop_dup(int addr_family, const void *addr) } \ struct _nl_dummy_for_tailing_semicolon +#define _NL_AUTO_DEFINE_FCN_INDIRECT0(CastType, name, func) \ + static inline void name(CastType *v) \ + { \ + if (*v) \ + func(v); \ + } \ + struct _nl_dummy_for_tailing_semicolon + #define _nl_auto_free _nl_auto(_nl_auto_free_fcn) _NL_AUTO_DEFINE_FCN_VOID0(void *, _nl_auto_free_fcn, free); -- cgit v0.12