From d2c123c27db841c6c11a63de9c144823d2b1ba76 Mon Sep 17 00:00:00 2001 From: Rusty Russell <rusty@rustcorp.com.au> Date: Fri, 12 Jun 2009 21:46:56 -0600 Subject: [PATCH] module_param: add __same_type convenience wrapper for __builtin_types_compatible_p Impact: new API __builtin_types_compatible_p() is a little awkward to use: it takes two types rather than types or variables, and it's just damn long. (typeof(type) == type, so this works on types as well as vars). Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> --- include/linux/compiler.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 37bcb50a4d7c85..04fb5135b4e16e 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -261,6 +261,11 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); # define __section(S) __attribute__ ((__section__(#S))) #endif +/* Are two types/vars the same type (ignoring qualifiers)? */ +#ifndef __same_type +# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) +#endif + /* * Prevent the compiler from merging or refetching accesses. The compiler * is also forbidden from reordering successive instances of ACCESS_ONCE(), -- GitLab