Re: [PATCH net-next 8/8] ionic: drop ethtool driver version

[Leon Romanovsky <leonro@mellanox.com>]

On Mon, Mar 02, 2020 at 08:15:45PM -0800, Shannon Nelson wrote:
> Use the default kernel version in ethtool drv_info output
> and drop the module version.
>
> Cc: Leon Romanovsky <leonro@mellanox.com>
> Signed-off-by: Shannon Nelson <snelson@pensando.io>
> ---
>  drivers/net/ethernet/pensando/ionic/ionic.h         | 1 -
>  drivers/net/ethernet/pensando/ionic/ionic_ethtool.c | 1 -
>  drivers/net/ethernet/pensando/ionic/ionic_main.c    | 7 +++----
>  3 files changed, 3 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/net/ethernet/pensando/ionic/ionic.h b/drivers/net/ethernet/pensando/ionic/ionic.h
> index c8ff33da243a..1c720759fd80 100644
> --- a/drivers/net/ethernet/pensando/ionic/ionic.h
> +++ b/drivers/net/ethernet/pensando/ionic/ionic.h
> @@ -12,7 +12,6 @@ struct ionic_lif;
>
>  #define IONIC_DRV_NAME		"ionic"
>  #define IONIC_DRV_DESCRIPTION	"Pensando Ethernet NIC Driver"
> -#define IONIC_DRV_VERSION	"0.20.0-k"
>
>  #define PCI_VENDOR_ID_PENSANDO			0x1dd8
>
> diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
> index acd53e27d1ec..bea9b78e0189 100644
> --- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
> +++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c
> @@ -86,7 +86,6 @@ static void ionic_get_drvinfo(struct net_device *netdev,
>  	struct ionic *ionic = lif->ionic;
>
>  	strlcpy(drvinfo->driver, IONIC_DRV_NAME, sizeof(drvinfo->driver));
> -	strlcpy(drvinfo->version, IONIC_DRV_VERSION, sizeof(drvinfo->version));
>  	strlcpy(drvinfo->fw_version, ionic->idev.dev_info.fw_version,
>  		sizeof(drvinfo->fw_version));
>  	strlcpy(drvinfo->bus_info, ionic_bus_info(ionic),
> diff --git a/drivers/net/ethernet/pensando/ionic/ionic_main.c b/drivers/net/ethernet/pensando/ionic/ionic_main.c
> index a8e3fb73b465..5428af885fa7 100644
> --- a/drivers/net/ethernet/pensando/ionic/ionic_main.c
> +++ b/drivers/net/ethernet/pensando/ionic/ionic_main.c
> @@ -6,6 +6,7 @@
>  #include <linux/module.h>
>  #include <linux/netdevice.h>
>  #include <linux/utsname.h>
> +#include <linux/vermagic.h>
>
>  #include "ionic.h"
>  #include "ionic_bus.h"
> @@ -15,7 +16,6 @@
>  MODULE_DESCRIPTION(IONIC_DRV_DESCRIPTION);
>  MODULE_AUTHOR("Pensando Systems, Inc");
>  MODULE_LICENSE("GPL");
> -MODULE_VERSION(IONIC_DRV_VERSION);
>
>  static const char *ionic_error_to_str(enum ionic_status_code code)
>  {
> @@ -414,7 +414,7 @@ int ionic_identify(struct ionic *ionic)
>  	memset(ident, 0, sizeof(*ident));
>
>  	ident->drv.os_type = cpu_to_le32(IONIC_OS_TYPE_LINUX);
> -	strncpy(ident->drv.driver_ver_str, IONIC_DRV_VERSION,
> +	strncpy(ident->drv.driver_ver_str, UTS_RELEASE,
>  		sizeof(ident->drv.driver_ver_str) - 1);

Strange, I see that you are issuing command IONIC_CMD_IDENTIFY with this
data, doesn't the other side expect specific format? Can I send any
string here? and what will be result?

>
>  	mutex_lock(&ionic->dev_cmd_lock);
> @@ -558,8 +558,7 @@ int ionic_port_reset(struct ionic *ionic)
>
>  static int __init ionic_init_module(void)
>  {
> -	pr_info("%s %s, ver %s\n",
> -		IONIC_DRV_NAME, IONIC_DRV_DESCRIPTION, IONIC_DRV_VERSION);
> +	pr_info("%s %s\n", IONIC_DRV_NAME, IONIC_DRV_DESCRIPTION);

While cleaning from driver versions, we are removing such code too.
It is done for three reasons:
1. In case of success, there is no need in dmesg to know about the fact
that driver is going to be up.
2. In case of failure, there will/should be error prints.
3. There are so many options to know about execution of every function
and module init/exit that extra print is definitely useless.

Thanks

>  	ionic_debugfs_create();
>  	return ionic_bus_register_driver();
>  }
> --
> 2.17.1
>