netdev - Re: [PATCH ethtool 3/7] ioctl: get rid of signed/unsigned comparison warnings

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Date:   Tue, 11 Aug 2020 23:20:59 +0200
From:   Michal Kubecek <mkubecek@...e.cz>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH ethtool 3/7] ioctl: get rid of signed/unsigned comparison
 warnings

On Mon, Aug 10, 2020 at 04:19:24PM +0200, Andrew Lunn wrote:
> > -	while (arg_num < ctx->argc) {
> > +	while (arg_num < (unsigned int)ctx->argc) {
> 
> Did you try changing ctx->argc to an unsigned int? I guess there would
> be less casts that way, and it is a more logical type for this.
> 
>     Andrew

I tried now and the number of changes in ethtool.c is not as bad as
I thought. I even found one missing check which could allow argc to fall
below 0.

Michal