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From: Mark Rutland <mark.rutland@arm.com>
To: Laura Abbott <labbott@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>,
	Will Deacon <will.deacon@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	x86@kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Joonsoo Kim <iamjoonsoo.kim@lge.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCHv4 10/10] arm64: Add support for CONFIG_DEBUG_VIRTUAL
Date: Tue, 6 Dec 2016 18:58:24 +0000	[thread overview]
Message-ID: <20161206185823.GJ24177@leverpostej> (raw)
In-Reply-To: <1480445729-27130-11-git-send-email-labbott@redhat.com>

On Tue, Nov 29, 2016 at 10:55:29AM -0800, Laura Abbott wrote:
> 
> +	WARN(!__is_lm_address(x),
> +	     "virt_to_phys used for non-linear address :%pK\n", (void *)x);

Nit: s/ :/: /

It might be worth adding %pS too; i.e.

	WARN(!__is_lm_address(x),
	     "virt_to_phys used for non-linear address: %pK (%pS)\n",
	     (void *)x, (void *)x);

... that way we might get a better idea before we have to resort to
grepping objdump output.

Other than that this looks good to me. This builds cleanly with and
without DEBUG_VIRTUAL enabled, and boots happily with DEBUG_VIRTUAL
disabled.

With both DEBUG_VIRTUAL and KASAN, I'm hitting a sea of warnings from
kasan_init at boot time, but I don't think that's a problem with this
patch as such, so FWIW:

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>

Thanks,
Mark.

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      reply	other threads:[~2016-12-06 18:59 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-29 18:55 [PATCHv4 00/10] CONFIG_DEBUG_VIRTUAL for arm64 Laura Abbott
2016-11-29 18:55 ` [PATCHv4 01/10] lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL Laura Abbott
2016-11-29 18:55 ` [PATCHv4 02/10] mm/cma: Cleanup highmem check Laura Abbott
2016-11-29 18:55 ` [PATCHv4 03/10] arm64: Move some macros under #ifndef __ASSEMBLY__ Laura Abbott
2016-11-29 18:55 ` [PATCHv4 04/10] arm64: Add cast for virt_to_pfn Laura Abbott
2016-11-29 18:55 ` [PATCHv4 05/10] arm64: Use __pa_symbol for kernel symbols Laura Abbott
2016-11-30 17:17   ` Catalin Marinas
2016-12-01 12:04   ` James Morse
2016-12-06 16:08     ` Mark Rutland
2016-12-06  0:50   ` Florian Fainelli
2016-12-06 11:46     ` Catalin Marinas
2016-12-06 17:02   ` Mark Rutland
2016-12-06 19:12     ` Laura Abbott
2016-11-29 18:55 ` [PATCHv4 06/10] xen: Switch to using __pa_symbol Laura Abbott
2016-11-29 22:26   ` Boris Ostrovsky
2016-11-29 22:42     ` Laura Abbott
2016-11-29 18:55 ` [PATCHv4 07/10] kexec: Switch to __pa_symbol Laura Abbott
2016-12-01  2:41   ` Dave Young
2016-12-01  3:13     ` Eric W. Biederman
2016-12-01  4:27       ` Dave Young
2016-11-29 18:55 ` [PATCHv4 08/10] mm/kasan: Switch to using __pa_symbol and lm_alias Laura Abbott
2016-12-01 11:36   ` Andrey Ryabinin
2016-12-01 19:10     ` Laura Abbott
2016-12-06 17:25     ` Mark Rutland
2016-12-06 17:44   ` Mark Rutland
2016-12-06 19:18   ` Mark Rutland
2016-11-29 18:55 ` [PATCHv4 09/10] mm/usercopy: Switch to using lm_alias Laura Abbott
2016-11-29 19:39   ` Kees Cook
2016-12-06 18:18     ` Mark Rutland
2016-12-06 20:10       ` Kees Cook
2016-12-07 13:57         ` Mark Rutland
2016-12-06 18:20   ` Mark Rutland
2016-11-29 18:55 ` [PATCHv4 10/10] arm64: Add support for CONFIG_DEBUG_VIRTUAL Laura Abbott
2016-12-06 18:58   ` Mark Rutland [this message]

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