From: Thomas Monjalon <thomas@monjalon.net>
To: Akhil Goyal <gakhil@marvell.com>,
Amit Prakash Shukla <amitprakashs@marvell.com>
Cc: dev@dpdk.org, "ruifeng.wang@arm.com" <ruifeng.wang@arm.com>,
"honnappa.nagarahalli@arm.com" <honnappa.nagarahalli@arm.com>,
Rahul Bhansali <rbhansali@marvell.com>
Subject: Re: [EXT] DPDK build for Arm with GCC 12
Date: Thu, 06 Oct 2022 11:20:44 +0200 [thread overview]
Message-ID: <3693371.kQq0lBPeGt@thomas> (raw)
In-Reply-To: <PH0PR18MB3846E226E5504E443CA447B2B85C9@PH0PR18MB3846.namprd18.prod.outlook.com>
06/10/2022 08:14, Rahul Bhansali:
> Hi Thomas,
>
> > -----Original Message-----
> > From: Thomas Monjalon <thomas@monjalon.net>
> > Sent: Tuesday, October 4, 2022 6:17 PM
> > To: Rahul Bhansali <rbhansali@marvell.com>; Akhil Goyal
> > <gakhil@marvell.com>
> > Cc: dev@dpdk.org; ruifeng.wang@arm.com; honnappa.nagarahalli@arm.com
> > Subject: [EXT] DPDK build for Arm with GCC 12
> >
> > External Email
> >
> > ----------------------------------------------------------------------
> > Hello,
> >
> > GCC 12 suspects an out-of-bound write in NEON port_groupx4():
> >
> > In file included from examples/ipsec-secgw/ipsec_neon.h:9,
> > from examples/ipsec-secgw/ipsec_lpm_neon.h:9,
> > from examples/ipsec-secgw/ipsec_worker.c:16:
> > examples/common/neon/port_group.h: In function 'port_groupx4':
> > examples/common/neon/port_group.h:42:21: error:
> > array subscript 'union <anonymous>[0]' is partly outside
> > array bounds of 'uint16_t[5]'
> > 42 | pnum->u64 = gptbl[v].pnum;
> > | ^~
> > examples/common/neon/port_group.h:21:23: note:
> > object 'pn' of size [0, 10]
> > 21 | port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, uint16x8_t dp1,
> > | ~~~~~~~~~^~~~~~~~~~~~~~~
> > examples/common/neon/port_group.h:43:21: error:
> > array subscript 'union <anonymous>[0]' is partly outside
> > array bounds of 'uint16_t[5]'
> > 43 | pnum->u16[FWDSTEP] = 1;
> > | ^~
> > examples/common/neon/port_group.h:21:23: note:
> > object 'pn' of size [0, 10]
> > 21 | port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, uint16x8_t dp1,
> > | ~~~~~~~~~^~~~~~~~~~~~~~~
> >
> > Please could you help fixing it?
> This is already addressed in http://patches.dpdk.org/project/dpdk/patch/20220902074337.3129786-1-amitprakashs@marvell.com/ by @Amit Prakash Shukla .
Yes thank you.
prev parent reply other threads:[~2022-10-06 9:20 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-04 12:46 DPDK build for Arm with GCC 12 Thomas Monjalon
2022-10-06 6:14 ` [EXT] " Rahul Bhansali
2022-10-06 9:20 ` Thomas Monjalon [this message]
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