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From: Stephen Hemminger <stephen@networkplumber.org>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: Mohammad Iqbal Ahmad <mahmad@marvell.com>,
	dev@dpdk.org, Vladimir Medvedkin <vladimir.medvedkin@intel.com>,
	Konstantin Ananyev <konstantin.ananyev@huawei.com>,
	Conor Walsh <conor.walsh@intel.com>,
	jerinj@marvell.com, skori@marvell.com, skoteshwar@marvell.com,
	pbhagavatula@marvell.com, kirankumark@marvell.com,
	psatheesh@marvell.com, asekhar@marvell.com, anoobj@marvell.com,
	gakhil@marvell.com, hkalra@marvell.com, ndabilpuram@marvell.com
Subject: Re: [PATCH v1] examples/l3fwd: fix for coverity scan
Date: Thu, 6 Jul 2023 11:09:26 -0700	[thread overview]
Message-ID: <20230706110926.689d1344@hermes.local> (raw)
In-Reply-To: <7686290.gsGJI6kyIV@thomas>

On Wed, 01 Feb 2023 18:28:44 +0100
Thomas Monjalon <thomas@monjalon.net> wrote:

> 10/01/2023 15:56, Mohammad Iqbal Ahmad:
> > This patch fixes (Logically dead code) coverity issue.
> > This patch also fixes (Uninitialized scalar variable) coverity issue.
> > 
> > Coverity issue: 381687
> > Coverity issue: 381686
> > Fixes: 6a094e328598 ("examples/l3fwd: implement FIB lookup method")
> > 
> > Signed-off-by: Mohammad Iqbal Ahmad <mahmad@marvell.com>  
> 
> It seems you removed "if (nh != FIB_DEFAULT_HOP)"
> 
> Please could you explain what was the issue
> inside the commit message.
> It could help to find a better title as well.

Coverity is spotting that the same condition is evaluated first
in the if() then in the conditional expression. So yes it is a bug.

Would prefer the title of
   examples/l3fwd: fix duplicate expression for default nexthop

Don't think the default nexthop was ever tested. If it was then
hops[i] would have never been updated. Probably would just get previous
value so it worked.

Acked-by: Stephen Hemminger <stephen@networkplumber.org>

  reply	other threads:[~2023-07-06 18:09 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-16  7:39 [PATCH v1 1/2] mailmap: add contributor to list Mohammad Iqbal Ahmad
2022-12-16  7:39 ` [PATCH v1 2/2] app/test-flow-perf: fix division or module by zero Mohammad Iqbal Ahmad
2022-12-19  8:34 ` [PATCH v2 1/2] mailmap: add contributor to list Mohammad Iqbal Ahmad
2022-12-19  8:34   ` [PATCH v2 2/2] app/test-flow-perf: fix division or module by zero Mohammad Iqbal Ahmad
2023-01-23 11:41   ` [PATCH v2 1/2] mailmap: add contributor to list Mohammad Iqbal Ahmad
2023-01-23 15:32     ` Thomas Monjalon
2023-01-24 10:38   ` [PATCH v3 1/1] app/test-flow-perf: fix division or module by zero Mohammad Iqbal Ahmad
2023-02-20 12:46     ` Wisam Monther
2023-02-20 12:51       ` Thomas Monjalon
2023-03-06 10:21         ` Wisam Monther
2023-03-12 14:05     ` Thomas Monjalon
2023-01-09 10:57 ` [PATCH v1 1/2] mailmap: add contributor to list Mohammad Iqbal Ahmad
2023-01-10 14:56 ` [PATCH v1] examples/l3fwd: fix for coverity scan Mohammad Iqbal Ahmad
2023-01-18 11:24   ` Walsh, Conor
2023-02-01 17:28   ` Thomas Monjalon
2023-07-06 18:09     ` Stephen Hemminger [this message]
2023-07-12 14:39       ` Thomas Monjalon

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