| 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
| ||
|
Date: Thu, 30 May 2013 16:21:36 +0800 From: Chen Gang <gang.chen@...anux.com> To: Andreas Schwab <schwab@...ux-m68k.org>, Geert Uytterhoeven <geert@...ux-m68k.org> CC: linux-m68k@...ts.linux-m68k.org, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Linux-Arch <linux-arch@...r.kernel.org> Subject: [PATCH v2] arch: m68k: math-emu: unsigned issue, 'unsigned long' will never be less than zero 'oldmant.m32[1]' is 'unsigned long' which never '< 0', and the original author wanted to check the highest bit whether set. So need make the bit test explicit (which is better than type cast form '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@...anux.com> --- arch/m68k/math-emu/fp_arith.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/arch/m68k/math-emu/fp_arith.c b/arch/m68k/math-emu/fp_arith.c index 08f286d..239eb19 100644 --- a/arch/m68k/math-emu/fp_arith.c +++ b/arch/m68k/math-emu/fp_arith.c @@ -519,7 +519,7 @@ static void fp_roundint(struct fp_ext *dest, int mode) return; break; case 0x401e: - if (!(oldmant.m32[1] >= 0)) + if (oldmant.m32[1] & 0x80000000) return; if (oldmant.m32[0] & 1) break; -- 1.7.7.6 -- 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/
Powered by blists - more mailing lists