[dpdk-stable] patch 'eal/ppc: ignore GCC 10 stringop-overflow warnings' has been queued to stable release 20.11.4

[Xueming Li]

Hi,

FYI, your patch has been queued to stable release 20.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 11/12/21. 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/steevenlee/dpdk

This queued commit can be viewed at:
https://github.com/steevenlee/dpdk/commit/9102608a1cf447c8f3e8ccd9439fa94077cd4c97

Thanks.

Xueming Li <xuemingl at nvidia.com>

---
>From 9102608a1cf447c8f3e8ccd9439fa94077cd4c97 Mon Sep 17 00:00:00 2001
From: David Christensen <drc at linux.vnet.ibm.com>
Date: Thu, 2 Sep 2021 15:15:14 -0700
Subject: [PATCH] eal/ppc: ignore GCC 10 stringop-overflow warnings
Cc: Xueming Li <xuemingl at nvidia.com>

[ upstream commit c13e6177394365d4db1595ea038bd9c3de04d32f ]

Suppress gcc warning "warning: writing 16 bytes into a region of
size 0" for users of the POWER rte_memcpy() function.  Existing
rte_memcpy() code takes different code paths based on the actual
size of the move so the warning is already addressed. See also
commit b5b3ea803e47 ("eal/x86: ignore gcc 10 stringop-overflow warnings")

Signed-off-by: David Christensen <drc at linux.vnet.ibm.com>
---
 lib/librte_eal/ppc/include/rte_memcpy.h | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/lib/librte_eal/ppc/include/rte_memcpy.h b/lib/librte_eal/ppc/include/rte_memcpy.h
index c2a1f356d5..6f388c0234 100644
--- a/lib/librte_eal/ppc/include/rte_memcpy.h
+++ b/lib/librte_eal/ppc/include/rte_memcpy.h
@@ -1,6 +1,6 @@
 /*
  * SPDX-License-Identifier: BSD-3-Clause
- * Copyright (C) IBM Corporation 2014.
+ * Copyright (C) IBM Corporation 2014,2021
  */
 
 #ifndef _RTE_MEMCPY_PPC_64_H_
@@ -18,11 +18,16 @@ extern "C" {
 
 #include "generic/rte_memcpy.h"
 
-#if (GCC_VERSION >= 90000 && GCC_VERSION < 90400)
+#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 90000)
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Warray-bounds"
 #endif
 
+#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 100000)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstringop-overflow"
+#endif
+
 static inline void
 rte_mov16(uint8_t *dst, const uint8_t *src)
 {
@@ -198,7 +203,11 @@ rte_memcpy_func(void *dst, const void *src, size_t n)
 	return ret;
 }
 
-#if (GCC_VERSION >= 90000 && GCC_VERSION < 90400)
+#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 100000)
+#pragma GCC diagnostic pop
+#endif
+
+#if defined(RTE_TOOLCHAIN_GCC) && (GCC_VERSION >= 90000)
 #pragma GCC diagnostic pop
 #endif
 
-- 
2.33.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2021-11-10 14:17:02.845231336 +0800
+++ 0016-eal-ppc-ignore-GCC-10-stringop-overflow-warnings.patch	2021-11-10 14:17:01.754080379 +0800
@@ -1 +1 @@
-From c13e6177394365d4db1595ea038bd9c3de04d32f Mon Sep 17 00:00:00 2001
+From 9102608a1cf447c8f3e8ccd9439fa94077cd4c97 Mon Sep 17 00:00:00 2001
@@ -4,0 +5,3 @@
+Cc: Xueming Li <xuemingl at nvidia.com>
+
+[ upstream commit c13e6177394365d4db1595ea038bd9c3de04d32f ]
@@ -12,2 +14,0 @@
-Cc: stable at dpdk.org
-
@@ -16 +17 @@
- lib/eal/ppc/include/rte_memcpy.h | 15 ++++++++++++---
+ lib/librte_eal/ppc/include/rte_memcpy.h | 15 ++++++++++++---
@@ -19 +20 @@
-diff --git a/lib/eal/ppc/include/rte_memcpy.h b/lib/eal/ppc/include/rte_memcpy.h
+diff --git a/lib/librte_eal/ppc/include/rte_memcpy.h b/lib/librte_eal/ppc/include/rte_memcpy.h
@@ -21,2 +22,2 @@
---- a/lib/eal/ppc/include/rte_memcpy.h
-+++ b/lib/eal/ppc/include/rte_memcpy.h
+--- a/lib/librte_eal/ppc/include/rte_memcpy.h
++++ b/lib/librte_eal/ppc/include/rte_memcpy.h