From nobody Thu Dec 18 18:56:04 2025 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC50FC77B61 for ; Thu, 27 Apr 2023 17:43:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244581AbjD0RnG (ORCPT ); Thu, 27 Apr 2023 13:43:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49952 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244575AbjD0Rmh (ORCPT ); Thu, 27 Apr 2023 13:42:37 -0400 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 64E76449A for ; Thu, 27 Apr 2023 10:42:27 -0700 (PDT) Received: from skinsburskii.localdomain (c-67-170-100-148.hsd1.wa.comcast.net [67.170.100.148]) by linux.microsoft.com (Postfix) with ESMTPSA id BE5D621C33DF; Thu, 27 Apr 2023 10:42:26 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com BE5D621C33DF DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1682617346; bh=lbHi5s+Eft8kCcVZxoCtTZ7X0binDj0JHmqe0h+9dEs=; h=Subject:From:Cc:Date:In-Reply-To:References:From; b=OzkmcOKuax2YnA3bhoej74/6EDZuvfZ0Inv7NG/hTtmTtzHerkqwO1WE2jzjkssq6 RFiLLepRAcL1SMfIEGdWinCDvpJfwr2hWfpxojZMTXR6mzZ7ogYovV8C8OeeB1lfQu HyWtbtNrXC+BzfVMUO9Yj8zBeTY/z9GWcsc0nnJI= Subject: [PATCH 6/7] powerpc: asm/io.h: Expect immutable pointer in virt_to_phys prototype From: Stanislav Kinsburskii Cc: Stanislav Kinsburskii , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Geert Uytterhoeven , Bjorn Helgaas , Stanislav Kinsburskii , Arnd Bergmann , linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Date: Sat, 15 Apr 2023 04:17:53 -0700 Message-ID: <168155747391.13678.10634415747614468991.stgit@skinsburskii.localdomain> In-Reply-To: <168155718437.13678.714141668943813263.stgit@skinsburskii.localdomain> References: <168155718437.13678.714141668943813263.stgit@skinsburskii.localdomain> User-Agent: StGit/0.19 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Stanislav Kinsburskii These helper function - virt_to_phys - doesn't need the address pointer to be mutable. In the same time expecting it to be mutable leads to the following build warning for constant pointers: warning: passing argument 1 of =E2=80=98virt_to_phys=E2=80=99 discards = =E2=80=98const=E2=80=99 qualifier from pointer target type Signed-off-by: Stanislav Kinsburskii CC: Michael Ellerman CC: Nicholas Piggin CC: Christophe Leroy CC: Geert Uytterhoeven CC: Bjorn Helgaas CC: Stanislav Kinsburskii CC: Arnd Bergmann CC: linuxppc-dev@lists.ozlabs.org CC: linux-kernel@vger.kernel.org --- arch/powerpc/include/asm/io.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h index f1e657c9bbe8..c287eeb9536f 100644 --- a/arch/powerpc/include/asm/io.h +++ b/arch/powerpc/include/asm/io.h @@ -959,7 +959,7 @@ extern void __iomem *__ioremap_caller(phys_addr_t, unsi= gned long size, * almost all conceivable cases a device driver should not be using * this function */ -static inline unsigned long virt_to_phys(volatile void * address) +static inline unsigned long virt_to_phys(const volatile void * address) { WARN_ON(IS_ENABLED(CONFIG_DEBUG_VIRTUAL) && !virt_addr_valid(address)); =20