linux-kernel - Re: [PATCH] cxl: Remove useless precision specifiers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Sun, 22 Feb 2015 22:42:11 -0800
From:	Joe Perches <joe@...ches.com>
To:	Ian Munsie <imunsie@....ibm.com>
Cc:	Rasmus Villemoes <linux@...musvillemoes.dk>,
	Michael Neuling <mikey@...ling.org>,
	linuxppc-dev <linuxppc-dev@...ts.ozlabs.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] cxl: Remove useless precision specifiers

On Mon, 2015-02-23 at 14:40 +1100, Ian Munsie wrote:
> Excerpts from Rasmus Villemoes's message of 2015-02-21 00:26:22 +1100:
> > C99 says that a precision given as simply '.' with no following digits
> > or * should be interpreted as 0. The kernel's printf implementation,
> > however, treats this case as if the precision was omitted. C99 also
> > says that if both the precision and value are 0, no digits should be
> > printed. Even if the kernel followed C99 to the letter, I don't think
> > that would be particularly useful in these cases, so just remove the
> > precision specifiers.
> 
> Nice catch Rasmus, but I think a better patch would be one that adds the
> missing precision (%.16llx).

The kernel much more commonly uses %016llx

$ git grep "%016llx" | grep -v staging | wc -l
792
$ git grep "%\.16llx" | grep -v staging | wc -l
36


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/