19 lines
508 B
C
19 lines
508 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* taken from Kernel's <linux/compiler.h
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*/
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#ifndef __LIKELY_H
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#define __LIKELY_H
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/* See https://kernelnewbies.org/FAQ/LikelyUnlikely
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*
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* In 2 words:
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* "You should use it [likely() and unlikely()] only in cases when the likeliest
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* branch is very very very likely, or when the unlikeliest branch is very very
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* very unlikely."
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*/
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# define likely(x) __builtin_expect(!!(x), 1)
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# define unlikely(x) __builtin_expect(!!(x), 0)
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#endif /* __LIKELY_H */
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