From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753801AbeEONux (ORCPT ); Tue, 15 May 2018 09:50:53 -0400 Received: from bh-25.webhostbox.net ([208.91.199.152]:32869 "EHLO bh-25.webhostbox.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752433AbeEONuw (ORCPT ); Tue, 15 May 2018 09:50:52 -0400 From: Guenter Roeck To: James Hogan Cc: linux-mips@linux-mips.org, linux-kernel@vger.kernel.org, Ralf Baechle , Guenter Roeck , "Eric W . Biederman" Subject: [PATCH -next] signal/mips: Report FPE_FLTUNK for undiagnosed floating point exceptions Date: Tue, 15 May 2018 06:50:47 -0700 Message-Id: <1526392247-25512-1-git-send-email-linux@roeck-us.net> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Authenticated_sender: guenter@roeck-us.net X-OutGoing-Spam-Status: No, score=-1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - bh-25.webhostbox.net X-AntiAbuse: Original Domain - vger.kernel.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - roeck-us.net X-Get-Message-Sender-Via: bh-25.webhostbox.net: authenticated_id: guenter@roeck-us.net X-Authenticated-Sender: bh-25.webhostbox.net: guenter@roeck-us.net X-Source: X-Source-Args: X-Source-Dir: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Most mips builds fail with arch/mips/kernel/traps.c: In function ‘force_fcr31_sig’: arch/mips/kernel/traps.c:732:2: error: ‘si_code’ may be used uninitialized in this function Fix the problem by initializing si_code with FPE_FLTUNK (undiagnosed floating point exception). Fixes: f43a54a0d916 ("signal/mips: Use force_sig_fault where appropriate") Cc: linux-mips@linux-mips.org Cc: Eric W. Biederman Signed-off-by: Guenter Roeck --- Feel free to merge into the patch introducing the problem. arch/mips/kernel/traps.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 66ec4b0b484d..d67fa74622ee 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -716,7 +716,7 @@ asmlinkage void do_ov(struct pt_regs *regs) void force_fcr31_sig(unsigned long fcr31, void __user *fault_addr, struct task_struct *tsk) { - int si_code; + int si_code = FPE_FLTUNK; if (fcr31 & FPU_CSR_INV_X) si_code = FPE_FLTINV; -- 2.7.4