From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from foss.arm.com ([217.140.101.70]:40966 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750721AbdAXMij (ORCPT ); Tue, 24 Jan 2017 07:38:39 -0500 Date: Tue, 24 Jan 2017 12:37:33 +0000 From: Mark Rutland To: Geert Uytterhoeven Cc: Laura Abbott , Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, linux-renesas-soc@vger.kernel.org Subject: Re: [PATCH] arm64: Use __pa_symbol for empty_zero_page Message-ID: <20170124123617.GA7572@leverpostej> References: <1485258220-21916-1-git-send-email-geert+renesas@glider.be> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1485258220-21916-1-git-send-email-geert+renesas@glider.be> Sender: linux-renesas-soc-owner@vger.kernel.org List-ID: On Tue, Jan 24, 2017 at 12:43:40PM +0100, Geert Uytterhoeven wrote: > If CONFIG_DEBUG_VIRTUAL=y and CONFIG_ARM64_SW_TTBR0_PAN=y: > > virt_to_phys used for non-linear address: ffffff8008cc0000 (empty_zero_page+0x0/0x1000) > WARNING: CPU: 0 PID: 0 at arch/arm64/mm/physaddr.c:14 __virt_to_phys+0x28/0x60 > ... > [] __virt_to_phys+0x28/0x60 > [] setup_arch+0x46c/0x4d4 > > Fixes: 2077be6783b5936c ("arm64: Use __pa_symbol for kernel symbols") > Signed-off-by: Geert Uytterhoeven Acked-by: Mark Rutland Mark. > --- > arch/arm64/kernel/setup.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c > index 669fc9ff728b227f..b5222094ab52db6f 100644 > --- a/arch/arm64/kernel/setup.c > +++ b/arch/arm64/kernel/setup.c > @@ -298,7 +298,7 @@ void __init setup_arch(char **cmdline_p) > * faults in case uaccess_enable() is inadvertently called by the init > * thread. > */ > - init_task.thread_info.ttbr0 = virt_to_phys(empty_zero_page); > + init_task.thread_info.ttbr0 = __pa_symbol(empty_zero_page); > #endif > > #ifdef CONFIG_VT > -- > 1.9.1 > From mboxrd@z Thu Jan 1 00:00:00 1970 From: mark.rutland@arm.com (Mark Rutland) Date: Tue, 24 Jan 2017 12:37:33 +0000 Subject: [PATCH] arm64: Use __pa_symbol for empty_zero_page In-Reply-To: <1485258220-21916-1-git-send-email-geert+renesas@glider.be> References: <1485258220-21916-1-git-send-email-geert+renesas@glider.be> Message-ID: <20170124123617.GA7572@leverpostej> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Jan 24, 2017 at 12:43:40PM +0100, Geert Uytterhoeven wrote: > If CONFIG_DEBUG_VIRTUAL=y and CONFIG_ARM64_SW_TTBR0_PAN=y: > > virt_to_phys used for non-linear address: ffffff8008cc0000 (empty_zero_page+0x0/0x1000) > WARNING: CPU: 0 PID: 0 at arch/arm64/mm/physaddr.c:14 __virt_to_phys+0x28/0x60 > ... > [] __virt_to_phys+0x28/0x60 > [] setup_arch+0x46c/0x4d4 > > Fixes: 2077be6783b5936c ("arm64: Use __pa_symbol for kernel symbols") > Signed-off-by: Geert Uytterhoeven Acked-by: Mark Rutland Mark. > --- > arch/arm64/kernel/setup.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c > index 669fc9ff728b227f..b5222094ab52db6f 100644 > --- a/arch/arm64/kernel/setup.c > +++ b/arch/arm64/kernel/setup.c > @@ -298,7 +298,7 @@ void __init setup_arch(char **cmdline_p) > * faults in case uaccess_enable() is inadvertently called by the init > * thread. > */ > - init_task.thread_info.ttbr0 = virt_to_phys(empty_zero_page); > + init_task.thread_info.ttbr0 = __pa_symbol(empty_zero_page); > #endif > > #ifdef CONFIG_VT > -- > 1.9.1 >