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From: Bruce Richardson <bruce.richardson@intel.com>
To: Bernard Iremonger <bernard.iremonger@intel.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH v5 21/28] librte_ether: remove branches on pci_dev
Date: Thu, 29 Oct 2015 11:51:41 +0000	[thread overview]
Message-ID: <20151029115141.GA10272@bricha3-MOBL3> (raw)
In-Reply-To: <1445621793-3630-22-git-send-email-bernard.iremonger@intel.com>

On Fri, Oct 23, 2015 at 06:36:26PM +0100, Bernard Iremonger wrote:
> use dev_type to distinguish between vdev's and pdev's.
> remove pci_dev branches.
> update release notes.
> 
> Signed-off-by: Bernard Iremonger <bernard.iremonger@intel.com>
> ---
>  doc/guides/rel_notes/release_2_2.rst |  3 +++
>  lib/librte_ether/rte_ethdev.c        | 40 +++++++++++++++---------------------
>  2 files changed, 20 insertions(+), 23 deletions(-)
> 
<snip>  
>  /* attach the new physical device, then store port_id of the device */
> @@ -1143,14 +1141,11 @@ rte_eth_dev_configure(uint8_t port_id, uint16_t nb_rx_q, uint16_t nb_tx_q,
>  	 * If link state interrupt is enabled, check that the
>  	 * device supports it.
>  	 */
> -	if (dev_conf->intr_conf.lsc == 1) {
> -		const struct rte_pci_driver *pci_drv = &dev->driver->pci_drv;
> -
> -		if (!(pci_drv->drv_flags & RTE_PCI_DRV_INTR_LSC)) {
> +	if ((dev_conf->intr_conf.lsc == 1) &&
> +		(!(dev->data->dev_flags & RTE_ETH_DEV_INTR_LSC))) {
>  			PMD_DEBUG_TRACE("driver %s does not support lsc\n",
> -					pci_drv->name);
> +					dev->data->drv_name);

Is this safe to do? From your previous patches for the vdevs, you appear to be
setting the drv_name field to NULL for those vdevs, leading to undefined
behaviour here. (printf may catch the NULL and print it as "(null)" rather
than crashing, but it's still wrong!)

/Bruce

  reply	other threads:[~2015-10-29 11:51 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <PATCH v5>
2015-10-23 17:36 ` [dpdk-dev] [PATCH v5 00/28] remove pci driver from vdevs Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 01/28] librte_eal: add RTE_KDRV_NONE for vdevs Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 02/28] librte_ether: add fields from rte_pci_driver to rte_eth_dev_data Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 03/28] librte_ether: add function rte_eth_copy_dev_info Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 04/28] ixgbe: copy pci device info to eth_dev data Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 05/28] e1000: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 06/28] i40e: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 07/28] fm10k: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 08/28] bnx2x: " Bernard Iremonger
2015-10-23 22:37     ` Harish Patil
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 09/28] cxgbe: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 10/28] enic: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 11/28] mlx4: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 12/28] virtio: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 13/28] vmxnet3: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 14/28] null: copy " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 15/28] ring: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 16/28] pcap: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 17/28] af_packet: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 18/28] xenvirt: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 19/28] mpipe: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 20/28] bonding: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 21/28] librte_ether: remove branches on pci_dev Bernard Iremonger
2015-10-29 11:51     ` Bruce Richardson [this message]
2015-10-29 14:32       ` Iremonger, Bernard
2015-10-29 14:35         ` Bruce Richardson
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 22/28] null: remove pci device Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 23/28] ring: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 24/28] pcap: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 25/28] af_packet: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 26/28] xenvirt: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 27/28] mpipe: " Bernard Iremonger
2015-10-23 17:36   ` [dpdk-dev] [PATCH v5 28/28] bonding: " Bernard Iremonger
2015-10-29 12:18   ` [dpdk-dev] [PATCH v5 00/28] remove pci driver from vdevs Bruce Richardson

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