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authorTejun Heo <tj@kernel.org>2010-01-04 19:17:33 -0500
committerTejun Heo <tj@kernel.org>2010-01-04 19:17:33 -0500
commit32032df6c2f6c9c6b2ada2ce42322231824f70c2 (patch)
treeb1ce838a37044bb38dfc128e2116ca35630e629a /include/linux/compiler.h
parent22b737f4c75197372d64afc6ed1bccd58c00e549 (diff)
parentc5974b835a909ff15c3b7e6cf6789b5eb919f419 (diff)
Merge branch 'master' into percpu
Conflicts: arch/powerpc/platforms/pseries/hvCall.S include/linux/percpu.h
Diffstat (limited to 'include/linux/compiler.h')
-rw-r--r--include/linux/compiler.h20
1 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index abba8045c6ef..a5a472b10746 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -146,6 +146,11 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
146# define barrier() __memory_barrier() 146# define barrier() __memory_barrier()
147#endif 147#endif
148 148
149/* Unreachable code */
150#ifndef unreachable
151# define unreachable() do { } while (1)
152#endif
153
149#ifndef RELOC_HIDE 154#ifndef RELOC_HIDE
150# define RELOC_HIDE(ptr, off) \ 155# define RELOC_HIDE(ptr, off) \
151 ({ unsigned long __ptr; \ 156 ({ unsigned long __ptr; \
@@ -215,6 +220,10 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
215# define __maybe_unused /* unimplemented */ 220# define __maybe_unused /* unimplemented */
216#endif 221#endif
217 222
223#ifndef __always_unused
224# define __always_unused /* unimplemented */
225#endif
226
218#ifndef noinline 227#ifndef noinline
219#define noinline 228#define noinline
220#endif 229#endif
@@ -268,6 +277,17 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
268# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) 277# define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b))
269#endif 278#endif
270 279
280/* Compile time object size, -1 for unknown */
281#ifndef __compiletime_object_size
282# define __compiletime_object_size(obj) -1
283#endif
284#ifndef __compiletime_warning
285# define __compiletime_warning(message)
286#endif
287#ifndef __compiletime_error
288# define __compiletime_error(message)
289#endif
290
271/* 291/*
272 * Prevent the compiler from merging or refetching accesses. The compiler 292 * Prevent the compiler from merging or refetching accesses. The compiler
273 * is also forbidden from reordering successive instances of ACCESS_ONCE(), 293 * is also forbidden from reordering successive instances of ACCESS_ONCE(),