94f582f82a
Replace worthless comments with actual preprocessor errors when including the wrong versions of the compiler.h files. [akpm@linux-foundation.org: make it work] Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
27 lines
730 B
C
27 lines
730 B
C
#ifndef __LINUX_COMPILER_H
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#error "Please don't include <linux/compiler-gcc3.h> directly, include <linux/compiler.h> instead."
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#endif
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/* These definitions are for GCC v3.x. */
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#include <linux/compiler-gcc.h>
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#if __GNUC_MINOR__ >= 3
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# define __used __attribute__((__used__))
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# define __attribute_used__ __used /* deprecated */
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#else
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# define __used __attribute__((__unused__))
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# define __attribute_used__ __used /* deprecated */
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#endif
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#if __GNUC_MINOR__ >= 4
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#define __must_check __attribute__((warn_unused_result))
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#endif
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/*
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* A trick to suppress uninitialized variable warning without generating any
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* code
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*/
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#define uninitialized_var(x) x = x
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#define __always_inline inline __attribute__((always_inline))
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