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From: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
To: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@vger.kernel.org, Randy Dunlap <rdunlap@infradead.org>,
	Jiaxun Yang <jiaxun.yang@flygoat.com>,
	Liangliang Huang <huanglllzu@gmail.com>,
	Huacai Chen <chenhuacai@kernel.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	Anshuman Khandual <anshuman.khandual@arm.com>,
	Kees Cook <keescook@chromium.org>,
	Jinyang He <hejinyang@loongson.cn>,
	Vlastimil Babka <vbabka@suse.cz>,
	Yousong Zhou <yszhou4tech@gmail.com>,
	Daniel Jordan <daniel.m.jordan@oracle.com>,
	Michel Lespinasse <walken@google.com>,
	open list <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2] MIPS: Add support for CONFIG_DEBUG_VIRTUAL
Date: Thu, 25 Mar 2021 10:57:39 +0100	[thread overview]
Message-ID: <20210325095739.GB5775@alpha.franken.de> (raw)
In-Reply-To: <20210323222103.34225-1-f.fainelli@gmail.com>

On Tue, Mar 23, 2021 at 03:20:43PM -0700, Florian Fainelli wrote:
> Provide hooks to intercept bad usages of virt_to_phys() and
> __pa_symbol() throughout the kernel. To make this possible, we need to
> rename the current implement of virt_to_phys() into
> __virt_to_phys_nodebug() and wrap it around depending on
> CONFIG_DEBUG_VIRTUAL.
> 
> A similar thing is needed for __pa_symbol() which is now aliased to
> __phys_addr_symbol() whose implementation is either the direct return of
> RELOC_HIDE or goes through the debug version.
> 
> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
> ---
> Changes in v2:
> - fixed sparse warning in arch/mips/kernel/vdso.c

checkpatch warns about a missing SPDX license in arch/mips/mm/physaddr.c,
can you please add one ?

And as checkpatch is also unhappy about the volatiles, do we really
need them here ?

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]

  reply	other threads:[~2021-03-25 10:02 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-23 22:20 [PATCH v2] MIPS: Add support for CONFIG_DEBUG_VIRTUAL Florian Fainelli
2021-03-25  9:57 ` Thomas Bogendoerfer [this message]
2021-03-26 17:45   ` Florian Fainelli
2021-03-26 21:44     ` Thomas Bogendoerfer

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