[dpdk-stable] patch 'mbuf: explicit casts of reference counter' has been queued to LTS release 17.11.5

[Yongseok Koh <yskoh@mellanox.com>]

Hi,

FYI, your patch has been queued to LTS release 17.11.5

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 01/04/19. 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. If the code is different (ie: not only metadata diffs), due for example to
a change in context or macro names, please double check it.

Thanks.

Yongseok

---
>From 6e3304c3b22e94a6c6f655f0f46803da80bf529e Mon Sep 17 00:00:00 2001
From: Andy Green <andy@warmcat.com>
Date: Thu, 17 May 2018 21:49:32 +0800
Subject: [PATCH] mbuf: explicit casts of reference counter

[ backported from upstream commit f6ffdf1c2c1cfbb2a3cbce246b545560609abeb5 ]

differences to the atomic16 are signed, but the
atomic16 itself is unsigned.  It needs to be
made explicit with casts.

Fixes: af75078fece3 ("first public release")

Signed-off-by: Andy Green <andy@warmcat.com>
Acked-by: Olivier Matz <olivier.matz@6wind.com>
---
 lib/librte_mbuf/rte_mbuf.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 4f6e0f7e3..ce1ae55b7 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -759,7 +759,7 @@ rte_mbuf_refcnt_read(const struct rte_mbuf *m)
 static inline void
 rte_mbuf_refcnt_set(struct rte_mbuf *m, uint16_t new_value)
 {
-	rte_atomic16_set(&m->refcnt_atomic, new_value);
+	rte_atomic16_set(&m->refcnt_atomic, (int16_t)new_value);
 }
 
 /* internal */
@@ -790,8 +790,8 @@ rte_mbuf_refcnt_update(struct rte_mbuf *m, int16_t value)
 	 */
 	if (likely(rte_mbuf_refcnt_read(m) == 1)) {
 		++value;
-		rte_mbuf_refcnt_set(m, value);
-		return value;
+		rte_mbuf_refcnt_set(m, (uint16_t)value);
+		return (uint16_t)value;
 	}
 
 	return __rte_mbuf_refcnt_update(m, value);
-- 
2.11.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-01-02 23:59:13.311112437 -0800
+++ 0023-mbuf-explicit-casts-of-reference-counter.patch	2019-01-02 23:59:12.078820000 -0800
@@ -1,27 +1,27 @@
-From f6ffdf1c2c1cfbb2a3cbce246b545560609abeb5 Mon Sep 17 00:00:00 2001
+From 6e3304c3b22e94a6c6f655f0f46803da80bf529e Mon Sep 17 00:00:00 2001
 From: Andy Green <andy@warmcat.com>
 Date: Thu, 17 May 2018 21:49:32 +0800
 Subject: [PATCH] mbuf: explicit casts of reference counter
 
+[ backported from upstream commit f6ffdf1c2c1cfbb2a3cbce246b545560609abeb5 ]
+
 differences to the atomic16 are signed, but the
 atomic16 itself is unsigned.  It needs to be
 made explicit with casts.
 
 Fixes: af75078fece3 ("first public release")
-Fixes: a53aa2b9f3be ("mbuf: support attaching external buffer")
-Cc: stable@dpdk.org
 
 Signed-off-by: Andy Green <andy@warmcat.com>
 Acked-by: Olivier Matz <olivier.matz@6wind.com>
 ---
- lib/librte_mbuf/rte_mbuf.h | 12 ++++++------
- 1 file changed, 6 insertions(+), 6 deletions(-)
+ lib/librte_mbuf/rte_mbuf.h | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
 
 diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
-index 8a2dae23b..b776a6f24 100644
+index 4f6e0f7e3..ce1ae55b7 100644
 --- a/lib/librte_mbuf/rte_mbuf.h
 +++ b/lib/librte_mbuf/rte_mbuf.h
-@@ -806,7 +806,7 @@ rte_mbuf_refcnt_read(const struct rte_mbuf *m)
+@@ -759,7 +759,7 @@ rte_mbuf_refcnt_read(const struct rte_mbuf *m)
  static inline void
  rte_mbuf_refcnt_set(struct rte_mbuf *m, uint16_t new_value)
  {
@@ -30,7 +30,7 @@
  }
  
  /* internal */
-@@ -837,8 +837,8 @@ rte_mbuf_refcnt_update(struct rte_mbuf *m, int16_t value)
+@@ -790,8 +790,8 @@ rte_mbuf_refcnt_update(struct rte_mbuf *m, int16_t value)
  	 */
  	if (likely(rte_mbuf_refcnt_read(m) == 1)) {
  		++value;
@@ -41,26 +41,6 @@
  	}
  
  	return __rte_mbuf_refcnt_update(m, value);
-@@ -909,7 +909,7 @@ static inline void
- rte_mbuf_ext_refcnt_set(struct rte_mbuf_ext_shared_info *shinfo,
- 	uint16_t new_value)
- {
--	rte_atomic16_set(&shinfo->refcnt_atomic, new_value);
-+	rte_atomic16_set(&shinfo->refcnt_atomic, (int16_t)new_value);
- }
- 
- /**
-@@ -929,8 +929,8 @@ rte_mbuf_ext_refcnt_update(struct rte_mbuf_ext_shared_info *shinfo,
- {
- 	if (likely(rte_mbuf_ext_refcnt_read(shinfo) == 1)) {
- 		++value;
--		rte_mbuf_ext_refcnt_set(shinfo, value);
--		return value;
-+		rte_mbuf_ext_refcnt_set(shinfo, (uint16_t)value);
-+		return (uint16_t)value;
- 	}
- 
- 	return (uint16_t)rte_atomic16_add_return(&shinfo->refcnt_atomic, value);
 -- 
 2.11.0