patch 'crypto/cnxk: fix build with GCC 15' has been queued to stable release 23.11.4

[Xueming Li <xuemingl@nvidia.com>]

Hi,

FYI, your patch has been queued to stable release 23.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
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://git.dpdk.org/dpdk-stable/log/?h=23.11-staging

This queued commit can be viewed at:
https://git.dpdk.org/dpdk-stable/commit/?h=23.11-staging&id=448898cf70fadf25518e85bf719cbaf6779e5a00

Thanks.

Xueming Li <xuemingl@nvidia.com>

---
From 448898cf70fadf25518e85bf719cbaf6779e5a00 Mon Sep 17 00:00:00 2001
From: Stephen Hemminger <stephen@networkplumber.org>
Date: Mon, 20 Jan 2025 15:23:38 -0800
Subject: [PATCH] crypto/cnxk: fix build with GCC 15
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Cc: Xueming Li <xuemingl@nvidia.com>

[ upstream commit 224e37a6a442b6a1f6d179b1756383f1a80cf3ed ]

GCC 15 produces warnings about uninitialized variables.

In file included from ../lib/mbuf/rte_mbuf.h:36,
                 from ../lib/cryptodev/rte_crypto.h:15,
                 from ../lib/cryptodev/rte_cryptodev.h:19,
                 from ../drivers/crypto/cnxk/cn9k_cryptodev_ops.c:5:
In function ‘pdcp_chain_sg1_prep’,
    inlined from ‘cpt_pdcp_chain_alg_prep’ at ../drivers/crypto/cnxk/cnxk_se.h:1621:11,
    inlined from ‘fill_pdcp_chain_params’ at ../drivers/crypto/cnxk/cnxk_se.h:3114:8,
    inlined from ‘cpt_sym_inst_fill’ at ../drivers/crypto/cnxk/cnxk_se.h:3364:9,
    inlined from ‘cn9k_cpt_inst_prep’ at ../drivers/crypto/cnxk/cn9k_cryptodev_ops.c:93:10:
../lib/eal/include/rte_common.h:469:38: warning: ‘fc_params.meta_buf.vaddr’ may be used uninitialized [-Wmaybe-uninitialized]
  469 | #define RTE_PTR_ADD(ptr, x) ((void*)((uintptr_t)(ptr) + (x)))
      |                                      ^~~~~~~~~~~~~~~~
../drivers/common/cnxk/roc_platform.h:47:34: note: in expansion of macro ‘RTE_PTR_ADD’
   47 | #define PLT_PTR_ADD              RTE_PTR_ADD
      |                                  ^~~~~~~~~~~
../drivers/crypto/cnxk/cnxk_se.h:900:19: note: in expansion of macro ‘PLT_PTR_ADD’
  900 |         m_vaddr = PLT_PTR_ADD(m_vaddr, ROC_SE_OFF_CTRL_LEN + PLT_ALIGN_CEIL(hdr_len, 8));
      |                   ^~~~~~~~~~~
In file included from ../drivers/crypto/cnxk/cn9k_cryptodev_ops.c:20:
../drivers/crypto/cnxk/cnxk_se.h: In function ‘cn9k_cpt_inst_prep’:
../drivers/crypto/cnxk/cnxk_se.h:3008:33: note: ‘fc_params.meta_buf.vaddr’ was declared here
 3008 |         struct roc_se_fc_params fc_params;
      |                                 ^~~~~~~~~
In function ‘pdcp_chain_sg1_prep’,
    inlined from ‘cpt_pdcp_chain_alg_prep’ at ../drivers/crypto/cnxk/cnxk_se.h:1621:11,
    inlined from ‘fill_pdcp_chain_params’ at ../drivers/crypto/cnxk/cnxk_se.h:3114:8,
    inlined from ‘cpt_sym_inst_fill’ at ../drivers/crypto/cnxk/cnxk_se.h:3364:9,
    inlined from ‘cn9k_cpt_inst_prep’ at ../drivers/crypto/cnxk/cn9k_cryptodev_ops.c:82:10:
../lib/eal/include/rte_common.h:469:38: warning: ‘fc_params.meta_buf.vaddr’ may be used uninitialized [-Wmaybe-uninitialized]
  469 | #define RTE_PTR_ADD(ptr, x) ((void*)((uintptr_t)(ptr) + (x)))
      |                                      ^~~~~~~~~~~~~~~~
../drivers/common/cnxk/roc_platform.h:47:34: note: in expansion of macro ‘RTE_PTR_ADD’
   47 | #define PLT_PTR_ADD              RTE_PTR_ADD
      |                                  ^~~~~~~~~~~
../drivers/crypto/cnxk/cnxk_se.h:900:19: note: in expansion of macro ‘PLT_PTR_ADD’
  900 |         m_vaddr = PLT_PTR_ADD(m_vaddr, ROC_SE_OFF_CTRL_LEN + PLT_ALIGN_CEIL(hdr_len, 8));
      |                   ^~~~~~~~~~~
../drivers/crypto/cnxk/cnxk_se.h: In function ‘cn9k_cpt_inst_prep’:
../drivers/crypto/cnxk/cnxk_se.h:3008:33: note: ‘fc_params.meta_buf.vaddr’ was declared here
 3008 |         struct roc_se_fc_params fc_params;
      |                                 ^~~~~~~~~

Fixes: d3bff77cc371 ("crypto/cnxk: separate out PDCP chain datapath")

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: David Marchand <david.marchand@redhat.com>
---
 drivers/crypto/cnxk/cnxk_se.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/cnxk/cnxk_se.h b/drivers/crypto/cnxk/cnxk_se.h
index cf163e0208..61f1c85857 100644
--- a/drivers/crypto/cnxk/cnxk_se.h
+++ b/drivers/crypto/cnxk/cnxk_se.h
@@ -3009,7 +3009,7 @@ fill_pdcp_chain_params(struct rte_crypto_op *cop, struct cnxk_se_sess *sess,
 {
 	uint32_t ci_data_length, ci_data_offset, a_data_length, a_data_offset;
 	struct rte_crypto_sym_op *sym_op = cop->sym;
-	struct roc_se_fc_params fc_params;
+	struct roc_se_fc_params fc_params = { };
 	struct rte_mbuf *m_src, *m_dst;
 	uint8_t cpt_op = sess->cpt_op;
 	uint64_t d_offs, d_lens;
--
2.34.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2025-02-18 19:39:00.964886390 +0800
+++ 0006-crypto-cnxk-fix-build-with-GCC-15.patch	2025-02-18 19:39:00.408244086 +0800
@@ -1 +1 @@
-From 224e37a6a442b6a1f6d179b1756383f1a80cf3ed Mon Sep 17 00:00:00 2001
+From 448898cf70fadf25518e85bf719cbaf6779e5a00 Mon Sep 17 00:00:00 2001
@@ -7,0 +8,3 @@
+Cc: Xueming Li <xuemingl@nvidia.com>
+
+[ upstream commit 224e37a6a442b6a1f6d179b1756383f1a80cf3ed ]
@@ -54 +56,0 @@
-Cc: stable@dpdk.org
@@ -63 +65 @@
-index 7262a49945..649e38c495 100644
+index cf163e0208..61f1c85857 100644
@@ -66 +68 @@
-@@ -3005,7 +3005,7 @@ fill_pdcp_chain_params(struct rte_crypto_op *cop, struct cnxk_se_sess *sess,
+@@ -3009,7 +3009,7 @@ fill_pdcp_chain_params(struct rte_crypto_op *cop, struct cnxk_se_sess *sess,