[PATCH v7 4/9] compiler{,-gcc4}.h, bug.h: Remove duplicate macros

[danielfsantos]

__linktime_error() does the same thing as __compiletime_error() and is
only used in bug.h.  Since the macro defines a function attribute that
will cause a failure at compile-time (not link-time), it makes more
sense to keep __compiletime_error(), which is also neatly mated with
__compiletime_warning().

Signed-off-by: Daniel Santos <daniel.santos@xxxxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Acked-by: Borislav Petkov <bp@xxxxxxxxx>
---
 include/linux/bug.h           |    2 +-
 include/linux/compiler-gcc4.h |    2 --
 include/linux/compiler.h      |    3 ---
 3 files changed, 1 insertions(+), 6 deletions(-)

diff --git a/include/linux/bug.h b/include/linux/bug.h
index b1cf40d..2a11774 100644
--- a/include/linux/bug.h
+++ b/include/linux/bug.h
@@ -74,7 +74,7 @@ extern int __build_bug_on_failed;
 #define BUILD_BUG()						\
 	do {							\
 		extern void __build_bug_failed(void)		\
-			__linktime_error("BUILD_BUG failed");	\
+			__compiletime_error("BUILD_BUG failed");\
 		__build_bug_failed();				\
 	} while (0)
 
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index a9ffdfe..68b162d 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -33,8 +33,6 @@
    the kernel context */
 #define __cold			__attribute__((__cold__))
 
-#define __linktime_error(message) __attribute__((__error__(message)))
-
 #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__)
 
 #ifndef __CHECKER__
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index dd852b7..4c638be 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -308,9 +308,6 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 #ifndef __compiletime_error
 # define __compiletime_error(message)
 #endif
-#ifndef __linktime_error
-# define __linktime_error(message)
-#endif
 /*
  * Prevent the compiler from merging or refetching accesses.  The compiler
  * is also forbidden from reordering successive instances of ACCESS_ONCE(),
-- 
1.7.8.6

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