netdev - Re: [PATCH RESEND ethtool] netlink: Allow nl_sset return -EOPNOTSUPP to fallback to do

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Message-ID: <20230827232302.gktg5g7vi7onql3l@lion.mk-sys.cz>
Date: Mon, 28 Aug 2023 01:23:02 +0200
From: Michal Kubecek <mkubecek@...e.cz>
To: Gang Li <gang.li@...ux.dev>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org, kuba@...nel.org
Subject: Re: [PATCH RESEND ethtool] netlink: Allow nl_sset return -EOPNOTSUPP
 to fallback to do_sset

On Mon, Aug 21, 2023 at 11:34:19AM +0800, Gang Li wrote:
> Currently, nl_sset treats any negative value returned by nl_parser
> (including -EOPNOTSUPP) as `1`. Consequently, netlink_run_handler
> directly calls exit without returning to main and invoking do_sset
> through ioctl_init.
> 
> To fallback to do_sset, this commit allows nl_sset return -EOPNOTSUPP.
> 
> Fixes: 392b12e ("netlink: add netlink handler for sset (-s)")
> Signed-off-by: Gang Li <gang.li@...ux.dev>

Applied, thank you.

I only changed the Fixes tag to commit 6c19c0d559c8 ("netlink: use
genetlink ops information to decide about fallback") as that's where the
need for special handling of -EOPNOTSUPP started.

Michal

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