Re: [PATCH v2] MIPS: Add support for CONFIG_DEBUG_VIRTUAL

[Thomas Bogendoerfer <tsbogend@alpha.franken.de>]

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 ]