[dpdk-stable] patch 'hash: fix doc about thread/process safety' has been queued to LTS release 18.11.2

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/14/19. 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/f26ab681cf6ab6a83340692018aef0b171df47a2

Thanks.

Kevin Traynor

---
>From f26ab681cf6ab6a83340692018aef0b171df47a2 Mon Sep 17 00:00:00 2001
From: Yipeng Wang <yipeng1.wang at intel.com>
Date: Mon, 29 Apr 2019 02:40:16 -0700
Subject: [PATCH] hash: fix doc about thread/process safety

[ upstream commit c96b55df8eea9223ec60f99974a95eb1c305aec5 ]

rte_hash_hash is multi-thread safe but not multi-process safe
because of the use of function pointers. Previous document
and comment says the other way around. This commit fixes
the issue.

Fixes: fc1f2750a3ec ("doc: programmers guide")
Fixes: 48a399119619 ("hash: replace with cuckoo hash implementation")

Reported-by: Andrey Nikolaev <gentoorion at gmail.com>
Suggested-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
Signed-off-by: Yipeng Wang <yipeng1.wang at intel.com>
Acked-by: Dharmik Thakkar <dharmik.thakkar at arm.com>
Acked-by: John McNamara <john.mcnamara at intel.com>
---
 doc/guides/prog_guide/multi_proc_support.rst | 2 +-
 lib/librte_hash/rte_hash.h                   | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/guides/prog_guide/multi_proc_support.rst b/doc/guides/prog_guide/multi_proc_support.rst
index 6196d3f21..f6f012db1 100644
--- a/doc/guides/prog_guide/multi_proc_support.rst
+++ b/doc/guides/prog_guide/multi_proc_support.rst
@@ -177,5 +177,5 @@ Some of these are documented below:
 *   The use of function pointers between multiple processes running based of different compiled binaries is not supported,
     since the location of a given function in one process may be different to its location in a second.
-    This prevents the librte_hash library from behaving properly as in a multi-threaded instance,
+    This prevents the librte_hash library from behaving properly as in a multi-process instance,
     since it uses a pointer to the hash function internally.
 
diff --git a/lib/librte_hash/rte_hash.h b/lib/librte_hash/rte_hash.h
index e5970b468..4432aef76 100644
--- a/lib/librte_hash/rte_hash.h
+++ b/lib/librte_hash/rte_hash.h
@@ -464,5 +464,5 @@ rte_hash_lookup_with_hash(const struct rte_hash *h,
 /**
  * Calc a hash value by key.
- * This operation is not multi-thread safe.
+ * This operation is not multi-process safe.
  *
  * @param h
-- 
2.20.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-05-08 16:33:59.219331775 +0100
+++ 0035-hash-fix-doc-about-thread-process-safety.patch	2019-05-08 16:33:57.451576919 +0100
@@ -1 +1 @@
-From c96b55df8eea9223ec60f99974a95eb1c305aec5 Mon Sep 17 00:00:00 2001
+From f26ab681cf6ab6a83340692018aef0b171df47a2 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit c96b55df8eea9223ec60f99974a95eb1c305aec5 ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org