patch 'baseband/acc100: add protection for some negative scenario' has been queued to stable release 21.11.2

[Kevin Traynor]

Hi,

FYI, your patch has been queued to stable release 21.11.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 06/27/22. 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

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable/commit/fd2d725ae5b240642dc4aaa3ab1a11b0e529dfd8

Thanks.

Kevin

---
>From fd2d725ae5b240642dc4aaa3ab1a11b0e529dfd8 Mon Sep 17 00:00:00 2001
From: Nicolas Chautru <nicolas.chautru at intel.com>
Date: Tue, 31 May 2022 15:31:43 -0700
Subject: [PATCH] baseband/acc100: add protection for some negative scenario

[ upstream commit 8454d94825181d7b833ea8346671e15b8dde5640 ]

Catch exception in PMD in case of invalid input parameter.

Fixes: 5ad5060f8f7a ("baseband/acc100: add LDPC processing functions")

Signed-off-by: Nicolas Chautru <nicolas.chautru at intel.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin at redhat.com>
---
 drivers/baseband/acc100/rte_acc100_pmd.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/baseband/acc100/rte_acc100_pmd.c b/drivers/baseband/acc100/rte_acc100_pmd.c
index 170eceb37b..6cdc6e65f7 100644
--- a/drivers/baseband/acc100/rte_acc100_pmd.c
+++ b/drivers/baseband/acc100/rte_acc100_pmd.c
@@ -1237,4 +1237,6 @@ get_k0(uint16_t n_cb, uint16_t z_c, uint8_t bg, uint8_t rv_index)
 	}
 	/* LBRM case - includes a division by N */
+	if (unlikely(z_c == 0))
+		return 0;
 	if (rv_index == 1)
 		return (((bg == 1 ? ACC100_K0_1_1 : ACC100_K0_1_2) * n_cb)
@@ -1765,4 +1767,8 @@ acc100_dma_desc_td_fill(struct rte_bbdev_dec_op *op,
 	/* Soft output */
 	if (check_bit(op->turbo_dec.op_flags, RTE_BBDEV_TURBO_SOFT_OUTPUT)) {
+		if (op->turbo_dec.soft_output.data == 0) {
+			rte_bbdev_log(ERR, "Soft output is not defined");
+			return -1;
+		}
 		if (check_bit(op->turbo_dec.op_flags,
 				RTE_BBDEV_TURBO_EQUALIZER))
-- 
2.34.3

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2022-06-24 15:51:09.184871634 +0100
+++ 0006-baseband-acc100-add-protection-for-some-negative-sce.patch	2022-06-24 15:51:08.843984006 +0100
@@ -1 +1 @@
-From 8454d94825181d7b833ea8346671e15b8dde5640 Mon Sep 17 00:00:00 2001
+From fd2d725ae5b240642dc4aaa3ab1a11b0e529dfd8 Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit 8454d94825181d7b833ea8346671e15b8dde5640 ]
+
@@ -9 +10,0 @@
-Cc: stable at dpdk.org
@@ -18 +19 @@
-index 79bee4345d..32c8bc2b34 100644
+index 170eceb37b..6cdc6e65f7 100644