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From: Chaoyong He <chaoyong.he@corigine.com>
To: Thomas Monjalon <thomas@monjalon.net>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
	"stable@dpdk.org" <stable@dpdk.org>,
	oss-drivers <oss-drivers@corigine.com>,
	Long Wu <Long.Wu@nephogine.com>,
	Nole Zhang <peng.zhang@corigine.com>
Subject: RE: [PATCH 3/5] common/nfp: fix integer handling issues
Date: Thu, 23 Nov 2023 01:23:23 +0000	[thread overview]
Message-ID: <SJ0PR13MB5545E00220EDEFBE497223D49EB9A@SJ0PR13MB5545.namprd13.prod.outlook.com> (raw)
In-Reply-To: <9244382.rMLUfLXkoz@thomas>

> 15/11/2023 04:23, Chaoyong He:
> > CI found integer handling issues, overflow before widen.
> >
> > Coverity issue: 405351
> > Fixes: 87f5b35ba4e8 ("common/nfp: move queue logic")
> > Cc: stable@dpdk.org
> [...]
> > -		enabled_queues |= (1 << i);
> > +		enabled_queues |= (1ULL << i);
> 
> That's a very bad fix.
> You should use RTE_BIT64() which is more explicit.
> 
> Please read rte_bitops.h, that's a nice set of macros and functions.
> 

Okay, I got it now.
So, what should I do about it? Send out another patch to fix or something else?


  reply	other threads:[~2023-11-23  1:23 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-15  3:23 [PATCH 0/5] fix coverity issues Chaoyong He
2023-11-15  3:23 ` [PATCH 1/5] vdpa/nfp: fix checking return value Chaoyong He
2023-11-15  3:23 ` [PATCH 2/5] vdpa/nfp: fix integer handling issues Chaoyong He
2023-11-15  3:23 ` [PATCH 3/5] common/nfp: " Chaoyong He
2023-11-22 11:50   ` Thomas Monjalon
2023-11-23  1:23     ` Chaoyong He [this message]
2023-11-23  2:08       ` Thomas Monjalon
2023-11-15  3:23 ` [PATCH 4/5] net/nfp: fix integer shift problem Chaoyong He
2023-11-15  3:23 ` [PATCH 5/5] net/nfp: fix null pointer dereferences Chaoyong He

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