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LinuxKPI: compiler.h add three more defines

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Add fallthrough, ____cacheline_aligned_in_smp, and smp_mb() to
linux/compiler.h.

Sponsored by:	The FreeBSD Foundation
MFC after:	2 weeks
Reviewed by:	hselasky
Differential Revision: https://reviews.freebsd.org/D30420
This commit is contained in:
Bjoern A. Zeeb 2021-05-24 17:59:13 +00:00
parent 5fce802722
commit da717031c9
1 changed files with 3 additions and 0 deletions
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3
sys/compat/linuxkpi/common/include/linux/compiler.h
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@ -65,6 +65,8 @@
#define __always_inline inline
#define noinline __noinline
#define ____cacheline_aligned __aligned(CACHE_LINE_SIZE)
#define ____cacheline_aligned_in_smp __aligned(CACHE_LINE_SIZE)
#define fallthrough /* FALLTHROUGH */ do { } while(0)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
@ -78,6 +80,7 @@
#define __printf(a,b) __printflike(a,b)
#define barrier() __asm__ __volatile__("": : :"memory")
#define smp_mb() mb()
#define lower_32_bits(n) ((u32)(n))
#define upper_32_bits(n) ((u32)(((n) >> 16) >> 16))