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ethtool: do not print warning for applications using legacy API

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In kernel log ths message appears on every boot:
 "warning: `NetworkChangeNo' uses legacy ethtool link settings API,
  link modes are only partially reported"

When ethtool link settings API changed, it started complaining about
usages of old API. Ironically, the original patch was from google but
the application using the legacy API is chrome.

Linux ABI is fixed as much as possible. The kernel must not break it
and should not complain about applications using legacy API's.
This patch just removes the warning since using legacy API's
in Linux is perfectly acceptable.

Fixes: 3f1ac7a700 ("net: ethtool: add new ETHTOOL_xLINKSETTINGS API")
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David Decotigny <decot@googlers.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2017-12-29 10:02:52 -08:00 committed by David S. Miller
parent bd30ffc414
commit 71891e2dab
1 changed files with 2 additions and 13 deletions
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15
net/core/ethtool.c
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@ -770,15 +770,6 @@ static int ethtool_set_link_ksettings(struct net_device *dev,
return dev->ethtool_ops->set_link_ksettings(dev, &link_ksettings);
}
static void
warn_incomplete_ethtool_legacy_settings_conversion(const char *details)
{
char name[sizeof(current->comm)];
pr_info_once("warning: `%s' uses legacy ethtool link settings API, %s\n",
get_task_comm(name, current), details);
}
/* Query device for its ethtool_cmd settings.
*
* Backward compatibility note: for compatibility with legacy ethtool,
@ -805,10 +796,8 @@ static int ethtool_get_settings(struct net_device *dev, void __user *useraddr)
&link_ksettings);
if (err < 0)
return err;
if (!convert_link_ksettings_to_legacy_settings(&cmd,
&link_ksettings))
warn_incomplete_ethtool_legacy_settings_conversion(
"link modes are only partially reported");
convert_link_ksettings_to_legacy_settings(&cmd,
&link_ksettings);
/* send a sensible cmd tag back to user */
cmd.cmd = ETHTOOL_GSET;