netdev - Re: [RFC PATCH net-next 1/3] netlink: add support for formatted extack messages

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Date:   Fri, 7 Oct 2022 11:32:19 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Edward Cree <ecree.xilinx@...il.com>
Cc:     Johannes Berg <johannes@...solutions.net>, ecree@...inx.com,
        netdev@...r.kernel.org, linux-net-drivers@....com,
        davem@...emloft.net, pabeni@...hat.com, edumazet@...gle.com,
        habetsm.xilinx@...il.com, marcelo.leitner@...il.com
Subject: Re: [RFC PATCH net-next 1/3] netlink: add support for formatted
 extack messages

On Fri, 7 Oct 2022 14:46:46 +0100 Edward Cree wrote:
> > That "if (__extack)" check seems a bit strange, you've long crashed with
> > a NPD if it was really NULL?  
> 
> Good point, I blindly copied NL_SET_ERR_MSG without thinking.
> The check should enclose the whole body, will fix in v2.

FWIW you can prolly use break; thanks to the do {} while wrapping.
Maybe that's hacky.