From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AFC27C4332F for ; Fri, 18 Nov 2022 15:19:39 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4NDL6y2KRrz3f9l for ; Sat, 19 Nov 2022 02:19:38 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=k15ya8ze; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.158.5; helo=mx0a-001b2d01.pphosted.com; envelope-from=nathanl@linux.ibm.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=k15ya8ze; dkim-atps=neutral Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4NDKsh6QZbz3dvG for ; Sat, 19 Nov 2022 02:08:08 +1100 (AEDT) Received: from pps.filterd (m0098416.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2AIE81PI028258 for ; Fri, 18 Nov 2022 15:08:00 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=KHrgOgYbnWUbm+3seEvXpcJvdbg2t+kvSDYPLx5zKrI=; b=k15ya8zevw+Ced5PQOmSqpA1c90u7kAkjbHItRUifxiPXfbDgIpOeY5ls0HKN0oCjKbC D5pC7r+UVqPhOdXPISxKjid/FfAfS05fpaxUJSNBjsMbFc4VY9KIMdHBNicc8z+sYOnm HkYFkIarNR7Jjpf2v7GEYCKKCQAPmmv++1ZotHK72ZltvTku7qpsCa+OU2bfDAw1TkSd v9KsjB3sKScUrhwvJR1TxeqaMNj2lhMQ5YWAjFSmgY1e+7CcFknYNjlSbkmnev4fablD 3FG6MK8SkyA9VrdK+S8umikxOyqo/8FRsUBwdFRXyYpaOUvTHSG4MWyqsGQu9hqAI4ak rQ== Received: from pps.reinject (localhost [127.0.0.1]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3kx8w0wwgp-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 18 Nov 2022 15:08:00 +0000 Received: from m0098416.ppops.net (m0098416.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 2AIEAFXd003346 for ; Fri, 18 Nov 2022 15:07:59 GMT Received: from ppma01dal.us.ibm.com (83.d6.3fa9.ip4.static.sl-reverse.com [169.63.214.131]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3kx8w0wwg9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 18 Nov 2022 15:07:59 +0000 Received: from pps.filterd (ppma01dal.us.ibm.com [127.0.0.1]) by ppma01dal.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 2AIF6orU008271; Fri, 18 Nov 2022 15:07:58 GMT Received: from b03cxnp07027.gho.boulder.ibm.com (b03cxnp07027.gho.boulder.ibm.com [9.17.130.14]) by ppma01dal.us.ibm.com with ESMTP id 3kt34aa866-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 18 Nov 2022 15:07:58 +0000 Received: from smtpav02.dal12v.mail.ibm.com ([9.208.128.128]) by b03cxnp07027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 2AIF7v9e23593486 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 18 Nov 2022 15:07:57 GMT Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EFD3F5805A; Fri, 18 Nov 2022 15:07:56 +0000 (GMT) Received: from smtpav02.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id D4CC158066; Fri, 18 Nov 2022 15:07:56 +0000 (GMT) Received: from localhost (unknown [9.211.69.164]) by smtpav02.dal12v.mail.ibm.com (Postfix) with ESMTP; Fri, 18 Nov 2022 15:07:56 +0000 (GMT) From: Nathan Lynch To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH 11/13] powerpc/rtas: strengthen do_enter_rtas() type safety, drop inline Date: Fri, 18 Nov 2022 09:07:49 -0600 Message-Id: <20221118150751.469393-12-nathanl@linux.ibm.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221118150751.469393-1-nathanl@linux.ibm.com> References: <20221118150751.469393-1-nathanl@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: HP1AT36_uhVUAqph2PN_9z9FpMa7YQ0M X-Proofpoint-GUID: XtHRA2spGuhiVi1IOwqgKZM1VclMDnym X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.895,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-11-18_02,2022-11-18_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 adultscore=0 clxscore=1015 lowpriorityscore=0 malwarescore=0 suspectscore=0 mlxscore=0 bulkscore=0 impostorscore=0 priorityscore=1501 spamscore=0 mlxlogscore=897 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2210170000 definitions=main-2211180084 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: tyreld@linux.ibm.com, nnac123@linux.ibm.com, ldufour@linux.ibm.com, ajd@linux.ibm.com, npiggin@gmail.com Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Make do_enter_rtas() take a pointer to struct rtas_args and do the __pa() conversion in one place instead of leaving it to callers. This also makes it possible to introduce enter/exit tracepoints that access the rtas_args struct fields. There's no apparent reason to force inlining of do_enter_rtas() either, and it seems to bloat the code a bit. Let the compiler decide. Signed-off-by: Nathan Lynch --- arch/powerpc/kernel/rtas.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index a88db3b3486f..198366d641d0 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -522,7 +522,7 @@ static const struct rtas_function *rtas_token_to_function(s32 token) /* This is here deliberately so it's only used in this file */ void enter_rtas(unsigned long); -static inline void do_enter_rtas(unsigned long args) +static void do_enter_rtas(struct rtas_args *args) { unsigned long msr; @@ -537,7 +537,7 @@ static inline void do_enter_rtas(unsigned long args) hard_irq_disable(); /* Ensure MSR[EE] is disabled on PPC64 */ - enter_rtas(args); + enter_rtas(__pa(args)); srr_regs_clobbered(); /* rtas uses SRRs, invalidate */ } @@ -908,7 +908,7 @@ static char *__fetch_rtas_last_error(char *altbuf) save_args = rtas.args; rtas.args = err_args; - do_enter_rtas(__pa(&rtas.args)); + do_enter_rtas(&rtas.args); err_args = rtas.args; rtas.args = save_args; @@ -955,7 +955,7 @@ va_rtas_call_unlocked(struct rtas_args *args, int token, int nargs, int nret, for (i = 0; i < nret; ++i) args->rets[i] = 0; - do_enter_rtas(__pa(args)); + do_enter_rtas(args); } void rtas_call_unlocked(struct rtas_args *args, int token, int nargs, int nret, ...) @@ -1731,7 +1731,7 @@ SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) flags = lock_rtas(); rtas.args = args; - do_enter_rtas(__pa(&rtas.args)); + do_enter_rtas(&rtas.args); args = rtas.args; /* A -1 return code indicates that the last command couldn't -- 2.37.1