From: Ferruh Yigit <ferruh.yigit@intel.com>
To: Steve Yang <stevex.yang@intel.com>, <dev@dpdk.org>
Cc: <beilei.xing@intel.com>
Subject: Re: [PATCH v1] net/i40e: fix coverity issue
Date: Wed, 23 Feb 2022 10:28:13 +0000 [thread overview]
Message-ID: <954955e2-eaa7-f5e1-8e52-597d6d1aa3ef@intel.com> (raw)
In-Reply-To: <20220223064147.3512888-1-stevex.yang@intel.com>
On 2/23/2022 6:41 AM, Steve Yang wrote:
> Cast 1 to type uint64_t to avoid overflow.
>
> CID 375812 (#1 of 1):
> Unintentional integer overflow (OVERFLOW_BEFORE_WIDEN)
> overflow_before_widen: Potentially overflowing expression 1 << 2 * i + 1
> with type int (32 bits, signed) is evaluated using 32-bit arithmetic, and
> then used in a context that expects an expression of type uint64_t
> (64 bits, unsigned).
>
> Coverity issue: 375812
> Fixes: 5fec01c35c49 ("net/i40e: support Linux VF to configure IRQ link list")
>
> Signed-off-by: Steve Yang <stevex.yang@intel.com>
Hi Steve,
Can you please describe what is actually done in the
patch title?
Fixing a static tool warning is not descriptive enough.
next prev parent reply other threads:[~2022-02-23 10:28 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-23 6:41 Steve Yang
2022-02-23 10:28 ` Ferruh Yigit [this message]
2022-02-24 1:17 ` [PATCH v2] net/i40e: fix unintentional integer overflow Steve Yang
2022-02-24 3:25 ` Zhang, Qi Z
2022-02-24 4:10 ` Stephen Hemminger
2022-02-24 6:21 ` Yang, SteveX
2022-02-24 11:42 ` Ferruh Yigit
2022-02-25 2:39 ` [PATCH v3] " Steve Yang
2022-02-25 14:48 ` Ferruh Yigit
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