[dpdk-stable] patch 'bus/fslmc: remove conflicting memory barrier macro' has been queued to LTS release 18.11.7

[Kevin Traynor <ktraynor@redhat.com>]

Hi,

FYI, your patch has been queued to LTS release 18.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/13/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/c6f92f38969a664ffd4ce174db38a32949929ded

Thanks.

Kevin.

---
From c6f92f38969a664ffd4ce174db38a32949929ded Mon Sep 17 00:00:00 2001
From: Gavin Hu <gavin.hu@arm.com>
Date: Thu, 7 Nov 2019 22:35:24 +0100
Subject: [PATCH] bus/fslmc: remove conflicting memory barrier macro

[ upstream commit 24ffb8c58963c86be5a53ce61896934a96a83234 ]

There are two definitions conflicting each other, for more
details, refer to [1].

include/rte_atomic_64.h:19: error: "dmb" redefined [-Werror]
drivers/bus/fslmc/mc/fsl_mc_sys.h:36: note: this is the location of the
previous definition
 #define dmb() {__asm__ __volatile__("" : : : "memory"); }

The fix is to reuse the EAL definition to avoid conflicts.

[1] http://inbox.dpdk.org/users/VI1PR08MB537631AB25F41B8880DCCA988FDF0@
VI1PR08MB5376.eurprd08.prod.outlook.com/T/#u

Fixes: 3af733ba8da8 ("bus/fslmc: introduce MC object functions")

Signed-off-by: Gavin Hu <gavin.hu@arm.com>
Reviewed-by: Phil Yang <phil.yang@arm.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/bus/fslmc/mc/fsl_mc_sys.h | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/bus/fslmc/mc/fsl_mc_sys.h b/drivers/bus/fslmc/mc/fsl_mc_sys.h
index d0c7b39f8d..a310c5697e 100644
--- a/drivers/bus/fslmc/mc/fsl_mc_sys.h
+++ b/drivers/bus/fslmc/mc/fsl_mc_sys.h
@@ -33,9 +33,8 @@ struct fsl_mc_io {
 #include <linux/byteorder/little_endian.h>
 
-#ifndef dmb
-#define dmb() {__asm__ __volatile__("" : : : "memory"); }
-#endif
-#define __iormb()	dmb()
-#define __iowmb()	dmb()
+#include <rte_atomic.h>
+
+#define __iormb()	rte_io_rmb()
+#define __iowmb()	rte_io_wmb()
 #define __arch_getq(a)		(*(volatile uint64_t *)(a))
 #define __arch_putq(v, a)	(*(volatile uint64_t *)(a) = (v))
-- 
2.21.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-02-07 15:08:18.103461043 +0000
+++ 0011-bus-fslmc-remove-conflicting-memory-barrier-macro.patch	2020-02-07 15:08:17.495063202 +0000
@@ -1 +1 @@
-From 24ffb8c58963c86be5a53ce61896934a96a83234 Mon Sep 17 00:00:00 2001
+From c6f92f38969a664ffd4ce174db38a32949929ded Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 24ffb8c58963c86be5a53ce61896934a96a83234 ]
+
@@ -20 +21,0 @@
-Cc: stable@dpdk.org