m68k/math-emu: unsigned issue, 'unsigned long' will never be less than zero
authorChen Gang <gang.chen@asianux.com>
Thu, 30 May 2013 08:21:36 +0000 (16:21 +0800)
committerGeert Uytterhoeven <geert@linux-m68k.org>
Mon, 24 Jun 2013 17:44:19 +0000 (19:44 +0200)
commitddc2fc2c5bf459d49c241123112741b99198f473
tree375dcfcbb6fe72762ca0849969cb580fdb20f049
parent220921a0d1d2ab91ad719c06a09d86f0e8852bfa
m68k/math-emu: unsigned issue, 'unsigned long' will never be less than zero

'oldmant.m32[1]' is 'unsigned long' which can never be '< 0', and the
original author wanted to check whether the highest bit is set.

So make the bit test explicit (which is better than casting from 'unsigned
long' to 'long').

The related warning: (with EXTRA_CFLAGS=-W ARCH=m68k for allmodconfig)
  arch/m68k/math-emu/fp_arith.c:522:4: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits]

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
arch/m68k/math-emu/fp_arith.c