linux-kernel - Re: Change %Z to %z in printf

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Message-Id: <20090307.145953.143128544.davem@davemloft.net>
Date:	Sat, 07 Mar 2009 14:59:53 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	jengelh@...ozas.de
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Change %Z to %z in printf

From: Jan Engelhardt <jengelh@...ozas.de>
Date: Sat, 7 Mar 2009 19:54:45 +0100 (CET)

> I found out that %Z is actually a deprecated libc5-ism as printf(3) of 
> man-pages 3.17 dated 2008-12-19 tells me.
> 
> In ${kernel}/lib/vsprintf.c, I find the following note and wondered
> if there might be any objections to going back to 'z'.

GCC's printf formatting checks only started recognizing %z a few
releases ago.  We kept the %Z in there so that with all gcc versions
we won't get warnings.

We've recently increased the minimal GCC version, so going to %z might
be OK now.
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