Re: [PATCH v2] vsprintf: introduce %dE for error constants

[Joe Perches]

On Tue, 2019-08-27 at 23:12 +0200, Uwe Kleine-König wrote:
> The new format specifier %dE introduced with this patch pretty-prints
> the typical negative error values. So
> 
> 	pr_info("probing failed (%dE)\n", ret);
> 
> yields
> 
> 	probing failed (EIO)
> 
> if ret holds -EIO. This is easier to understand than the for now common
> 
> 	probing failed (-5)

I suggest using both outputs like '-5 -EIO'
rather than a single string