From: Jia He <hejianet@gmail.com>
To: dev@dpdk.org, Thomas Monjalon <thomas@monjalon.net>,
Hemant Agrawal <hemant.agrawal@nxp.com>
Cc: Jerin Jacob <jerin.jacob@caviumnetworks.com>,
Jianbo Liu <jianbo.liu@arm.com>,
Jan Viktorin <viktorin@rehivetech.com>,
Olivier Matz <olivier.matz@6wind.com>,
konstantin.ananyev@intel.com, bruce.richardson@intel.com,
Jia He <hejianet@gmail.com>, Jia He <jia.he@hxt-semitech.com>
Subject: [PATCH v9 1/3] eal/arm64: remove the braces {} for dmb() and dsb()
Date: Sun, 21 Jan 2018 20:41:26 -0800 [thread overview]
Message-ID: <1516596088-10364-2-git-send-email-hejianet@gmail.com> (raw)
In-Reply-To: <1516596088-10364-1-git-send-email-hejianet@gmail.com>
for the code as follows:
if (condition)
rte_smp_rmb();
else
rte_smp_wmb();
Without this patch, compiler will report this error:
error: 'else' without a previous 'if'
Fixes: 84733fd0d75e ("eal/arm64: fix memory barrier definition")
Signed-off-by: Jia He <jia.he@hxt-semitech.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
---
lib/librte_eal/common/include/arch/arm/rte_atomic_64.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h b/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h
index b6bbd0b..10ccf14 100644
--- a/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h
+++ b/lib/librte_eal/common/include/arch/arm/rte_atomic_64.h
@@ -15,8 +15,8 @@ extern "C" {
#include "generic/rte_atomic.h"
-#define dsb(opt) { asm volatile("dsb " #opt : : : "memory"); }
-#define dmb(opt) { asm volatile("dmb " #opt : : : "memory"); }
+#define dsb(opt) asm volatile("dsb " #opt : : : "memory")
+#define dmb(opt) asm volatile("dmb " #opt : : : "memory")
#define rte_mb() dsb(sy)
--
2.7.4
next prev parent reply other threads:[~2018-01-22 4:41 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-17 4:03 [PATCH v8 0/3] support c11 memory model barrier in librte_ring Jia He
2018-01-17 4:03 ` [PATCH v8 1/3] eal/arm64: remove the braces {} for dmb() and dsb() Jia He
2018-01-17 4:03 ` [PATCH v8 2/3] ring: introduce new header file to include common functions Jia He
2018-01-19 14:15 ` Hemant Agrawal
2018-01-19 16:38 ` Olivier Matz
2018-01-19 16:47 ` Hemant Agrawal
2018-01-22 1:53 ` Jia He
[not found] ` <60d7010d-caf8-8ade-a34c-7e284842cded@nxp.com>
2018-01-22 6:18 ` Jia He
2018-01-22 16:54 ` Stephen Hemminger
2018-01-17 4:03 ` [PATCH v8 3/3] ring: introduce new header file to support C11 memory model Jia He
2018-01-17 8:24 ` Thomas Monjalon
2018-01-17 8:47 ` Jia He
2018-01-17 9:09 ` Thomas Monjalon
2018-01-18 23:52 ` Thomas Monjalon
2018-01-19 2:22 ` Jia He
2018-01-19 15:04 ` Hemant Agrawal
2018-01-19 14:25 ` Hemant Agrawal
2018-01-22 4:41 ` [PATCH v9 0/3] support c11 memory model barrier in librte_ring Jia He
2018-01-22 4:41 ` Jia He [this message]
2018-01-22 4:41 ` [PATCH v9 2/3] ring: introduce new header file to include common functions Jia He
2018-01-22 4:41 ` [PATCH v9 3/3] ring: introduce new header file to support C11 memory model Jia He
2018-01-22 7:53 ` [PATCH v9 0/3] support c11 memory model barrier in librte_ring Thomas Monjalon
2018-01-22 8:26 ` Olivier Matz
2018-01-22 8:29 ` Olivier Matz
2018-01-22 8:40 ` Hemant Agrawal
2018-01-29 15:11 ` Thomas Monjalon
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