38 lines
1.2 KiB
Diff
38 lines
1.2 KiB
Diff
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From 20e2daec4578c1df10d8b599bf3b525a9b3fc6c3 Mon Sep 17 00:00:00 2001
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From: Steve Wise <swise@opengridcomputing.com>
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Date: Tue, 7 Jun 2016 07:42:47 -0700
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Subject: Fail compiles if no platform specific memory barriers exist
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Currently there is a "generic" implementation for the memory barrier
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macros in arch.h. These turned out to be insuffient for ARM64 causing
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memory corruption problems when doing RDMA operations. So going forward,
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fail a compile on a platform w/o platform-specific memory barrier macros.
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Signed-off-by: Steve Wise <swise@opengridcomputing.com>
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Signed-off-by: Doug Ledford <dledford@redhat.com>
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---
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include/infiniband/arch.h | 7 +------
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1 file changed, 1 insertion(+), 6 deletions(-)
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diff --git a/include/infiniband/arch.h b/include/infiniband/arch.h
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index c31dd0a..e35ecf0 100644
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--- a/include/infiniband/arch.h
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+++ b/include/infiniband/arch.h
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@@ -132,12 +132,7 @@ static inline uint64_t ntohll(uint64_t x) { return x; }
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#else
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-#warning No architecture specific defines found. Using generic implementation.
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-
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-#define mb() asm volatile("" ::: "memory")
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-#define rmb() mb()
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-#define wmb() mb()
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-#define wc_wmb() wmb()
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+#error No architecture specific memory barrier defines found!
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#endif
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--
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cgit 1.2.3-1.el7
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