From: Stephen Hemminger <stephen@networkplumber.org>
To: "Morten Brørup" <mb@smartsharesystems.com>
Cc: "Dengdui Huang" <huangdengdui@huawei.com>, <dev@dpdk.org>,
<ferruh.yigit@amd.com>, <lihuisong@huawei.com>,
<fengchengwen@huawei.com>, <liuyonglong@huawei.com>
Subject: Re: [PATCH 02/43] eal: use rte strerror
Date: Wed, 15 Nov 2023 07:06:35 -0800 [thread overview]
Message-ID: <20231115070635.17153640@hermes.local> (raw)
In-Reply-To: <98CBD80474FA8B44BF855DF32C47DC35E9F026@smartserver.smartshare.dk>
On Wed, 15 Nov 2023 12:23:13 +0100
Morten Brørup <mb@smartsharesystems.com> wrote:
> > From: Stephen Hemminger [mailto:stephen@networkplumber.org]
> > Sent: Wednesday, 15 November 2023 01.23
> >
> > On Tue, 14 Nov 2023 16:24:58 +0800
> > Dengdui Huang <huangdengdui@huawei.com> wrote:
> >
> > > The function strerror() is insecure in a multi-thread environment.
> > > This patch uses rte_strerror() to replace it.
> > >
> > > Cc: stable@dpdk.org
> > >
> > > Signed-off-by: Dengdui Huang <huangdengdui@huawei.com>
> > > Acked-by: Chengwen Feng <fengchengwen@huawei.com>
> > > ---
> >
> > Look at implementation of rte_strerror(), it still has issues if
> > used from non-DPDK registered threads.
>
> The macro names RTE_DEFINE_PER_LCORE() and RTE_PER_LCORE() strongly indicate that the variables are instantiated per lcore.
>
> But they are not; they are instantiated per thread [1]:
So rte_strerror() is thread safe (good).
It make sense to use it, take back my original negative comments.
We could improve documentation of rte_strerror() to help.
next prev parent reply other threads:[~2023-11-15 15:06 UTC|newest]
Thread overview: 139+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-14 8:24 [PATCH 00/43] replace strerror Dengdui Huang
2023-11-14 8:24 ` [PATCH 01/43] devtools: forbid use of strerror Dengdui Huang
2023-11-14 8:24 ` [PATCH 02/43] eal: use rte strerror Dengdui Huang
2023-11-15 0:18 ` Stephen Hemminger
2023-11-15 11:16 ` Morten Brørup
2024-02-01 21:49 ` Stephen Hemminger
2023-11-15 0:22 ` Stephen Hemminger
2023-11-15 11:23 ` Morten Brørup
2023-11-15 15:06 ` Stephen Hemminger [this message]
2023-11-14 8:24 ` [PATCH 03/43] eventdev: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 04/43] latency: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 05/43] node: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 06/43] pdump: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 07/43] power: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 08/43] telemetry: replace strerror Dengdui Huang
2023-11-14 8:25 ` [PATCH 09/43] vhost: use rte strerror Dengdui Huang
2023-11-14 8:25 ` [PATCH 10/43] bpf: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 11/43] bus/cdx: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 12/43] bus/dpaa: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 13/43] bus/fslmc: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 14/43] bus/pci: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 15/43] bus/vdev: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 16/43] bus/vmbus: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 17/43] common/cnxk: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 18/43] common/mlx5: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 19/43] crypto/caam_jr: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 20/43] dma/idxd: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 21/43] net/af_packet: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 22/43] net/bnxt: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 23/43] net/af_xdp: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 24/43] net/bonding: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 25/43] net/dpaa: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 26/43] net/dpaa2: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 27/43] net/enetfec: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 28/43] net/failsafe: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 29/43] net/i40e: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 30/43] net/ice: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 31/43] net/ixgbe: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 32/43] net/memif: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 33/43] net/mlx4: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 34/43] net/mlx5: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 35/43] net/qede: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 36/43] net/sfc: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 37/43] net/tap: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 38/43] net/vhost: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 39/43] net/virtio: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 40/43] raw/ifpga: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 41/43] vdpa/ifc: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 42/43] vdpa/mlx5: " Dengdui Huang
2023-11-14 8:25 ` [PATCH 43/43] vdpa/sfc: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 00/43] replace strerror Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 01/43] devtools: forbid use of strerror Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 02/43] eal: use rte strerror Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 03/43] eventdev: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 04/43] latency: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 05/43] node: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 06/43] pdump: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 07/43] power: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 08/43] telemetry: replace strerror Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 09/43] vhost: use rte strerror Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 10/43] bpf: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 11/43] bus/cdx: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 12/43] bus/dpaa: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 13/43] bus/fslmc: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 14/43] bus/pci: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 15/43] bus/vdev: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 16/43] bus/vmbus: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 17/43] common/cnxk: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 18/43] common/mlx5: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 19/43] crypto/caam_jr: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 20/43] dma/idxd: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 21/43] net/af_packet: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 22/43] net/bnxt: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 23/43] net/af_xdp: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 24/43] net/bonding: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 25/43] net/dpaa: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 26/43] net/dpaa2: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 27/43] net/enetfec: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 28/43] net/failsafe: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 29/43] net/i40e: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 30/43] net/ice: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 31/43] net/ixgbe: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 32/43] net/memif: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 33/43] net/mlx4: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 34/43] net/mlx5: " Dengdui Huang
2023-11-14 11:23 ` [PATCH v2 35/43] net/qede: " Dengdui Huang
2023-11-14 11:24 ` [PATCH v2 36/43] net/sfc: " Dengdui Huang
2023-11-14 11:24 ` [PATCH v2 37/43] net/tap: " Dengdui Huang
2023-11-14 11:24 ` [PATCH v2 38/43] net/vhost: " Dengdui Huang
2023-11-14 11:24 ` [PATCH v2 39/43] net/virtio: " Dengdui Huang
2023-11-14 11:24 ` [PATCH v2 40/43] raw/ifpga: " Dengdui Huang
2023-11-14 11:24 ` [PATCH v2 41/43] vdpa/ifc: " Dengdui Huang
2023-11-14 11:24 ` [PATCH v2 42/43] vdpa/mlx5: " Dengdui Huang
2023-11-14 11:24 ` [PATCH v2 43/43] vdpa/sfc: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 00/42] replace strerror Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 01/42] devtools: forbid use of strerror Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 02/42] eal: use rte strerror Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 03/42] eventdev: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 04/42] latency: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 05/42] node: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 06/42] pdump: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 07/42] power: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 08/42] vhost: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 09/42] bpf: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 10/42] bus/cdx: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 11/42] bus/dpaa: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 12/42] bus/fslmc: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 13/42] bus/pci: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 14/42] bus/vdev: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 15/42] bus/vmbus: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 16/42] common/cnxk: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 17/42] common/mlx5: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 18/42] crypto/caam_jr: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 19/42] dma/idxd: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 20/42] net/af_packet: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 21/42] net/bnxt: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 22/42] net/af_xdp: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 23/42] net/bonding: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 24/42] net/dpaa: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 25/42] net/dpaa2: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 26/42] net/enetfec: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 27/42] net/failsafe: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 28/42] net/i40e: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 29/42] net/ice: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 30/42] net/ixgbe: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 31/42] net/memif: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 32/42] net/mlx4: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 33/42] net/mlx5: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 34/42] net/qede: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 35/42] net/sfc: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 36/42] net/tap: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 37/42] net/vhost: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 38/42] net/virtio: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 39/42] raw/ifpga: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 40/42] vdpa/ifc: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 41/42] vdpa/mlx5: " Dengdui Huang
2023-11-14 12:35 ` [PATCH v3 42/42] vdpa/sfc: " Dengdui Huang
2023-11-15 0:16 ` [PATCH 00/43] replace strerror Stephen Hemminger
2024-02-01 11:03 ` David Marchand
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