From: Mats Erik Andersson <mats.andersson64@comhem.se>
To: linux-kernel@vger.kernel.org
Subject: Three if-clauses of constant logic value; char drivers for kernel 2.4.33.3
Date: Tue, 19 Dec 2006 21:59:37 +0100 [thread overview]
Message-ID: <1166561978.4133.26.camel@localhost.localdomain> (raw)
Hi there, all masters of kernel code,
I just discovered that the kernel code for 2.4.33.3 contains three
if-statements that never can change their values, whence they should
be repaired or eliminated. In source directory linux/drivers/char the
files vt.c and keyboard.c produce these warning upon compilation:
vt.c:166: varning: comparison is always false due to limited range
of data type
vt.c:289: varning: comparison is always false due to limited range
of data type
keyboard.c:640: varning: comparison is always true due to limited
range of data type
I did the compilation with gcc 3.3.5 on Debian Sarge. This behaviour
appeared first for kernel 2.2.19, since I wanted to revive the old
minirtl edition, but to my surprise the same warnings appear also
with the brand new kernel 2.4.33.3.
Best regards
Mats Erik Andersson, PhD
ynglingatal@yahoo.se
mats.andersson64@comhem.se
next reply other threads:[~2006-12-19 21:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-12-19 20:59 Mats Erik Andersson [this message]
2006-12-29 22:16 ` Three if-clauses of constant logic value; char drivers for kernel 2.4.33.3 Willy Tarreau
2007-02-03 10:07 ` Willy Tarreau
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