Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp4122390pxb; Mon, 8 Feb 2021 08:28:04 -0800 (PST) X-Google-Smtp-Source: ABdhPJw0C08CcXgiWnPtCQjXxbpBQolfh8M/sqKC/t0DAetjyZxoykIOo4FOBMmkglaVtxfSBQzv X-Received: by 2002:a17:907:da3:: with SMTP id go35mr9682722ejc.26.1612801684670; Mon, 08 Feb 2021 08:28:04 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1612801684; cv=none; d=google.com; s=arc-20160816; b=PMxEi7V+7El77Vj2A0uIaym+O/RWbIZqJR5LEor158kqSk+HBQrg+j9bP5QBrrdgU4 rVjTuaWrSQsr0K/QUeiN7gFO7ib8UXZro5Zhrk4AhYu/fAOPcGfg1CptARxaWNMW9J6y f+dI4WpYc3rmK3yflrT+v2sZ65gG4dxb86NqACGbU7r6kcSoXi7RxhoD390jO+3gM8sZ WlmKSU7D8gbbTZrGPXNDBtmuH64URvZ3Hwta6Q5WUCbEn7Ooy9eZSr8b4NjSIIqrHHw4 MfPtLd82YjC46mId1hmy6Uqc0OHuIAWizWnjOmf5Hnq8B/WwFo+kTeRGOXfl2JuPqm1r K+lA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:date:cc:to:subject:from:references:in-reply-to :message-id; bh=la9+70uiAem6lT9abnnoVPTdaWRDl9sccyfxp/ESh5o=; b=QKmPbXdpcbK2SCRxHJ4aHH46/vDBP2BIssOgRng/B5QyV3jx7i1G5dgoQkw3BoX8dr k/9WtxpO4Un3U/nUCtJyFHzIQEfBASa9MV32akPZyxC7M1yoD/sBkybCM2YuaB58TXZM SyKwUtMytETwnwr76YH5WgZbQHbfmjOi1X2SJd9do8bMW6CwpScxZibCbluKOYzzZyoj 24xW2H8Iizp7qu7S7SZwup2pW3ACxskGJdmkbQ/amhQSU8c4z4c4KMbaQi9aL27JNZml nh9UKIPIPBexEdan2q+D9hm6haGXa0e05Q2oKPDpqHuybVEiMFkBapRdg9D+8RY5E4lc gD6Q== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id lu6si4770082ejb.414.2021.02.08.08.27.40; Mon, 08 Feb 2021 08:28:04 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234008AbhBHQYk (ORCPT + 99 others); Mon, 8 Feb 2021 11:24:40 -0500 Received: from pegase1.c-s.fr ([93.17.236.30]:9349 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233379AbhBHPM5 (ORCPT ); Mon, 8 Feb 2021 10:12:57 -0500 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 4DZ8bN4s0Cz9vBnQ; Mon, 8 Feb 2021 16:10:24 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id W_x5lJaITLFy; Mon, 8 Feb 2021 16:10:24 +0100 (CET) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 4DZ8bN3yYDz9tyNx; Mon, 8 Feb 2021 16:10:24 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id F08358B7BA; Mon, 8 Feb 2021 16:10:29 +0100 (CET) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id x1-jgEVq8jWm; Mon, 8 Feb 2021 16:10:29 +0100 (CET) Received: from po16121vm.idsi0.si.c-s.fr (po15451.idsi0.si.c-s.fr [172.25.230.103]) by messagerie.si.c-s.fr (Postfix) with ESMTP id B79148B7B3; Mon, 8 Feb 2021 16:10:29 +0100 (CET) Received: by po16121vm.idsi0.si.c-s.fr (Postfix, from userid 0) id AD5E16733E; Mon, 8 Feb 2021 15:10:29 +0000 (UTC) Message-Id: In-Reply-To: References: From: Christophe Leroy Subject: [PATCH v5 10/22] powerpc/syscall: Use is_compat_task() To: Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , npiggin@gmail.com, msuchanek@suse.de Cc: linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Date: Mon, 8 Feb 2021 15:10:29 +0000 (UTC) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Instead of hard comparing task flags with _TIF_32BIT, use is_compat_task(). The advantage is that it returns 0 on PPC32 allthough _TIF_32BIT is always set. Signed-off-by: Christophe Leroy --- arch/powerpc/kernel/interrupt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c index 2dac4d2bb1cf..46fd195ca659 100644 --- a/arch/powerpc/kernel/interrupt.c +++ b/arch/powerpc/kernel/interrupt.c @@ -2,6 +2,8 @@ #include #include +#include + #include #include #include @@ -118,7 +120,7 @@ notrace long system_call_exception(long r3, long r4, long r5, /* May be faster to do array_index_nospec? */ barrier_nospec(); - if (unlikely(is_32bit_task())) { + if (unlikely(is_compat_task())) { f = (void *)compat_sys_call_table[r0]; r3 &= 0x00000000ffffffffULL; -- 2.25.0