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dpdk: fix build with GCC 11

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Fixes:
 | In function 'memset',
 |     inlined from 'test_table_stub' at test_table_tables.c:151:4:
 | /buildarea/tmp/work/intel_x86_64-wrs-linux/dpdk/19.11.5-r0/recipe-sysroot/usr/include/bits/string_fortified.h:59:10: error: '__builtin_memset' offset [0, 31] is out of the bounds [0, 0] [-Werror=array-bounds]

Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
Signed-off-by: Anuj Mittal <anuj.mittal@intel.com>
This commit is contained in:
Mingli Yu 2021-06-10 15:00:36 +08:00 committed by Anuj Mittal
parent c011004a49
commit e73b8ba6a6
2 changed files with 58 additions and 1 deletions
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56
recipes-extended/dpdk/dpdk/0001-test-table-fix-build-with-GCC-11.patch Normal file
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@ -0,0 +1,56 @@
From 33c12ac5ba5f09727c6de807e71403dd260a7bbc Mon Sep 17 00:00:00 2001
From: Ferruh Yigit <ferruh.yigit@intel.com>
Date: Mon, 17 May 2021 16:57:39 +0100
Subject: [PATCH] test/table: fix build with GCC 11
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Build error:
../app/test/test_table_tables.c: In function ‘test_table_stub’:
../app/test/test_table_tables.c:31:9:
warning: ‘memset’ offset [0, 31] is out of the bounds [0, 0]
[-Warray-bounds]
memset((uint8_t *)mbuf + sizeof(struct rte_mbuf) + 32, 0, 32); \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../app/test/test_table_tables.c:151:25:
note: in expansion of macro ‘PREPARE_PACKET’
151 | PREPARE_PACKET(mbufs[i], 0xadadadad);
| ^~~~~~~~~~~~~~
'key' points to mbuf header + 32 bytes, and memset clears next 32 bytes
of 'key', so overall there needs to be 64 bytes after mbuf header.
Adding a mbuf size check before memset.
The original code has an assumption that mbuf data buffer follows mbuf
header, this patch accepts same assumption.
Bugzilla ID: 677
Fixes: 5205954791cb ("app/test: packet framework unit tests")
Cc: stable@dpdk.org
Upstream-Status: Backport [https://github.com/DPDK/dpdk/commit/33c12ac5ba5f09727c6de807e71403dd260a7bbc]
Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Signed-off-by: Mingli Yu <mingli.yu@windriver.com>
---
app/test/test_table_tables.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/app/test/test_table_tables.c b/app/test/test_table_tables.c
index 1aa269f95..4ff6ab16a 100644
--- a/app/test/test_table_tables.c
+++ b/app/test/test_table_tables.c
@@ -28,7 +28,8 @@ table_test table_tests[] = {
APP_METADATA_OFFSET(0)); \
key = RTE_MBUF_METADATA_UINT8_PTR(mbuf, \
APP_METADATA_OFFSET(32)); \
- memset(key, 0, 32); \
+ if (mbuf->priv_size + mbuf->buf_len >= 64) \
+ memset(key, 0, 32); \
k32 = (uint32_t *) key; \
k32[0] = (value); \
*signature = pipeline_test_hash(key, NULL, 0, 0); \
--
2.17.1

3
recipes-extended/dpdk/dpdk_19.11.5.bb
View File

@ -4,7 +4,8 @@ SRC_URI += " \
file://dpdk-16.04-add-RTE_KERNELDIR_OUT-to-split-kernel-bu.patch \
file://dpdk-16.07-add-sysroot-option-within-app-makefile.patch \
file://0001-Starting-from-Linux-5.9-get_user_pages_remote-API-do.patch \
file://usertools-devbind-fix-binding-for-built-in-kernel-dr.patch"
file://usertools-devbind-fix-binding-for-built-in-kernel-dr.patch \
file://0001-test-table-fix-build-with-GCC-11.patch"
STABLE = "-stable"