Re: [PATCH net-next] lan9303: Fix read error execution path

From: Vladimir Oltean
Date: Thu Dec 08 2022 - 14:34:37 EST


Is it deliberate that you are targeting the "net-next" tree for new
features rather than "net" for bug fixes?

On Thu, Dec 08, 2022 at 01:30:05PM -0600, Jerry Ray wrote:
> This patch fixes an issue where a read failure of a port statistic counter
> will return unknown results. While it is highly unlikely the read will
> ever fail, it is much cleaner to return a zero for the stat count.
>
> Fixes: a1292595e006 ("net: dsa: add new DSA switch driver for the SMSC-LAN9303")
>

There shouldn't be blank lines between the tags of a commit, see "git log"
for examples.

Not a reason in itself to resend, AFAIK.

> Signed-off-by: Jerry Ray <jerry.ray@xxxxxxxxxxxxx>
> ---
> drivers/net/dsa/lan9303-core.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/dsa/lan9303-core.c b/drivers/net/dsa/lan9303-core.c
> index 80f07bd20593..2e270b479143 100644
> --- a/drivers/net/dsa/lan9303-core.c
> +++ b/drivers/net/dsa/lan9303-core.c
> @@ -1005,9 +1005,11 @@ static void lan9303_get_ethtool_stats(struct dsa_switch *ds, int port,
> ret = lan9303_read_switch_port(
> chip, port, lan9303_mib[u].offset, &reg);
>
> - if (ret)
> + if (ret) {
> dev_warn(chip->dev, "Reading status port %d reg %u failed\n",
> port, lan9303_mib[u].offset);
> + reg = 0;
> + }
> data[u] = reg;
> }
> }
> --
> 2.17.1
>