From: Srikanth Yalavarthi <syalavarthi@marvell.com>
To: Srikanth Yalavarthi <syalavarthi@marvell.com>,
Prince Takkar <ptakkar@marvell.com>
Cc: <dev@dpdk.org>, <sshankarnara@marvell.com>, <aprabhu@marvell.com>,
<pshukla@marvell.com>
Subject: [PATCH v3 2/8] ml/cnxk: fix potential division by zero
Date: Thu, 16 Mar 2023 14:28:58 -0700 [thread overview]
Message-ID: <20230316212904.9318-3-syalavarthi@marvell.com> (raw)
In-Reply-To: <20230316212904.9318-1-syalavarthi@marvell.com>
Fix division or modulo by zero issue reported by coverity. Added
a check to count, before updating average value of a stat.
Coverity issue: 383658
Fixes: 4ff4ab8e1a20 ("ml/cnxk: support extended statistics")
Signed-off-by: Srikanth Yalavarthi <syalavarthi@marvell.com>
---
drivers/ml/cnxk/cn10k_ml_ops.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/ml/cnxk/cn10k_ml_ops.c b/drivers/ml/cnxk/cn10k_ml_ops.c
index 7d5eb97668..bf9409ad10 100644
--- a/drivers/ml/cnxk/cn10k_ml_ops.c
+++ b/drivers/ml/cnxk/cn10k_ml_ops.c
@@ -444,7 +444,8 @@ cn10k_ml_prep_fp_job_descriptor(struct rte_ml_dev *dev, struct cn10k_ml_req *req
count += model->burst_stats[qp_id].dequeued_count - \
model->burst_stats[qp_id].str##_reset_count; \
} \
- value = value / count; \
+ if (count != 0) \
+ value = value / count; \
} while (0)
#define ML_MIN_FOREACH_QP(dev, model, qp_id, str, value, count) \
--
2.17.1
next prev parent reply other threads:[~2023-03-16 21:30 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-15 13:54 [PATCH 1/1] ml/cnxk: fix multiple coverity issues Srikanth Yalavarthi
2023-03-16 9:33 ` [PATCH v2 " Srikanth Yalavarthi
2023-03-16 17:00 ` Thomas Monjalon
2023-03-16 17:02 ` [EXT] " Srikanth Yalavarthi
2023-03-16 17:07 ` Thomas Monjalon
2023-03-16 21:28 ` [PATCH v3 0/8] Fixes to ml/cnxk driver Srikanth Yalavarthi
2023-03-16 21:28 ` [PATCH v3 1/8] ml/cnxk: fix evaluation order violation issues Srikanth Yalavarthi
2023-03-16 21:28 ` Srikanth Yalavarthi [this message]
2023-03-16 21:28 ` [PATCH v3 3/8] ml/cnxk: add pointer check after memory allocation Srikanth Yalavarthi
2023-03-16 21:29 ` [PATCH v3 4/8] ml/cnxk: remove logically dead code Srikanth Yalavarthi
2023-03-16 21:29 ` [PATCH v3 5/8] ml/cnxk: fix potential memory leak in xstats Srikanth Yalavarthi
2023-03-16 21:29 ` [PATCH v3 6/8] ml/cnxk: check for null pointer before dereference Srikanth Yalavarthi
2023-03-16 21:29 ` [PATCH v3 7/8] ml/cnxk: avoid variable name reuse in a function Srikanth Yalavarthi
2023-03-16 21:29 ` [PATCH v3 8/8] ml/cnxk: reduce levels of nested variables access Srikanth Yalavarthi
2023-03-19 19:01 ` [PATCH v3 0/8] Fixes to ml/cnxk driver Thomas Monjalon
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