From: Michal Kubecek <mkubecek@suse.cz>
To: netdev@vger.kernel.org
Cc: Jakub Kicinski <kuba@kernel.org>,
David Miller <davem@davemloft.net>, Jiri Pirko <jiri@resnulli.us>,
Andrew Lunn <andrew@lunn.ch>,
Florian Fainelli <f.fainelli@gmail.com>,
John Linville <linville@tuxdriver.com>,
Johannes Berg <johannes@sipsolutions.net>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 03/15] ethtool: provide netdev features with FEATURES_GET request
Date: Thu, 12 Mar 2020 10:19:43 +0100 [thread overview]
Message-ID: <20200312091943.GK8012@unicorn.suse.cz> (raw)
In-Reply-To: <20200311154908.7fd7047d@kicinski-fedora-PC1C0HJN>
On Wed, Mar 11, 2020 at 03:49:08PM -0700, Jakub Kicinski wrote:
> On Wed, 11 Mar 2020 22:40:18 +0100 (CET) Michal Kubecek wrote:
> >
> > +#define ETHTOOL_DEV_FEATURE_WORDS ((NETDEV_FEATURE_COUNT + 31) / 32)
>
> nit: since this line is touched perhaps worth converting to
> DIV_ROUND_UP()?
Yes.
> > + for (i = 0; i < ETHTOOL_DEV_FEATURE_WORDS; i++)
> > + dest[i] = (u32)(src >> (32 * i));
>
> nit: cast unnecessary
OK.
> > + all_features = ~(netdev_features_t)0 >>
> > + (8 * sizeof(all_features) - NETDEV_FEATURE_COUNT);
>
> nit: GENMASK_ULL(NETDEV_FEATURE_COUNT % 32 - 1, 0) ?
Nice, I wasn't aware of this macro. But unless I want to fill data->all
directly, it would be without the "% 32" part.
> > +static int features_fill_reply(struct sk_buff *skb,
> > + const struct ethnl_req_info *req_base,
> > + const struct ethnl_reply_data *reply_base)
> > +{
> > + const struct features_reply_data *data = FEATURES_REPDATA(reply_base);
> > + bool compact = req_base->flags & ETHTOOL_FLAG_COMPACT_BITSETS;
> > + int ret;
> > +
> > + ret = ethnl_put_bitset32(skb, ETHTOOL_A_FEATURES_HW, data->hw,
> > + data->all, NETDEV_FEATURE_COUNT,
> > + netdev_features_strings, compact);
> > + if (ret < 0)
> > + return ret;
> > + ret = ethnl_put_bitset32(skb, ETHTOOL_A_FEATURES_WANTED, data->wanted,
> > + NULL, NETDEV_FEATURE_COUNT,
> > + netdev_features_strings, compact);
> > + if (ret < 0)
> > + return ret;
> > + ret = ethnl_put_bitset32(skb, ETHTOOL_A_FEATURES_ACTIVE, data->active,
> > + NULL, NETDEV_FEATURE_COUNT,
> > + netdev_features_strings, compact);
> > + if (ret < 0)
> > + return ret;
> > + ret = ethnl_put_bitset32(skb, ETHTOOL_A_FEATURES_NOCHANGE,
> > + data->nochange, NULL, NETDEV_FEATURE_COUNT,
> > + netdev_features_strings, compact);
> > +
> > + return ret;
>
> nit: return directly?
Ah, right. I eliminated "if (ret < 0)" but did not check again.
Michal
next prev parent reply other threads:[~2020-03-12 9:19 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-11 21:40 [PATCH net-next 00/15] ethtool netlink interface, part 3 Michal Kubecek
2020-03-11 21:40 ` [PATCH net-next 01/15] ethtool: rename ethnl_parse_header() to ethnl_parse_header_dev_get() Michal Kubecek
2020-03-11 21:40 ` [PATCH net-next 02/15] ethtool: update mapping of features to legacy ioctl requests Michal Kubecek
2020-03-11 21:40 ` [PATCH net-next 03/15] ethtool: provide netdev features with FEATURES_GET request Michal Kubecek
2020-03-11 22:49 ` Jakub Kicinski
2020-03-12 9:19 ` Michal Kubecek [this message]
2020-03-11 21:40 ` [PATCH net-next 04/15] ethtool: add ethnl_parse_bitset() helper Michal Kubecek
2020-03-12 5:48 ` David Miller
2020-03-12 9:25 ` Michal Kubecek
2020-03-11 21:40 ` [PATCH net-next 05/15] ethtool: set netdev features with FEATURES_SET request Michal Kubecek
2020-03-11 22:56 ` Jakub Kicinski
2020-03-12 9:45 ` Michal Kubecek
2020-03-11 21:40 ` [PATCH net-next 06/15] ethtool: add FEATURES_NTF notification Michal Kubecek
2020-03-11 21:40 ` [PATCH net-next 07/15] ethtool: provide private flags with PRIVFLAGS_GET request Michal Kubecek
2020-03-11 23:03 ` Jakub Kicinski
2020-03-11 21:40 ` [PATCH net-next 08/15] ethtool: set device private flags with PRIVFLAGS_SET request Michal Kubecek
2020-03-11 23:07 ` Jakub Kicinski
2020-03-11 21:40 ` [PATCH net-next 09/15] ethtool: add PRIVFLAGS_NTF notification Michal Kubecek
2020-03-11 21:40 ` [PATCH net-next 10/15] ethtool: provide ring sizes with RINGS_GET request Michal Kubecek
2020-03-11 23:16 ` Jakub Kicinski
2020-03-12 12:29 ` Michal Kubecek
2020-03-11 21:40 ` [PATCH net-next 11/15] ethtool: set device ring sizes with RINGS_SET request Michal Kubecek
2020-03-11 23:22 ` Jakub Kicinski
2020-03-11 21:41 ` [PATCH net-next 12/15] ethtool: add RINGS_NTF notification Michal Kubecek
2020-03-11 21:41 ` [PATCH net-next 13/15] ethtool: provide channel counts with CHANNELS_GET request Michal Kubecek
2020-03-11 23:24 ` Jakub Kicinski
2020-03-11 21:41 ` [PATCH net-next 14/15] ethtool: set device channel counts with CHANNELS_SET request Michal Kubecek
2020-03-11 21:41 ` [PATCH net-next 15/15] ethtool: add CHANNELS_NTF notification Michal Kubecek
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