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Date:      Tue, 25 May 2021 18:15:14 GMT
From:      "Bjoern A. Zeeb" <bz@FreeBSD.org>
To:        src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org
Subject:   git: da717031c9fd - main - LinuxKPI: compiler.h add three more defines
Message-ID:  <202105251815.14PIFELi044123@gitrepo.freebsd.org>

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The branch main has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=da717031c9fd914343e19ba87f19c7a9a7006721

commit da717031c9fd914343e19ba87f19c7a9a7006721
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2021-05-24 17:59:13 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2021-05-25 18:01:48 +0000

    LinuxKPI: compiler.h add three more defines
    
    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
---
 sys/compat/linuxkpi/common/include/linux/compiler.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/compiler.h b/sys/compat/linuxkpi/common/include/linux/compiler.h
index 470e1f151413..e641b1b096c3 100644
--- a/sys/compat/linuxkpi/common/include/linux/compiler.h
+++ b/sys/compat/linuxkpi/common/include/linux/compiler.h
@@ -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))



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