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SubjectRe: [PATCH v5 02/10] powerpc: move memstart_addr and kernstart_addr to init-common.c
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On 2019/8/7 21:02, Michael Ellerman wrote:
> Jason Yan <yanaijie@huawei.com> writes:
>> These two variables are both defined in init_32.c and init_64.c. Move
>> them to init-common.c.
>>
>> Signed-off-by: Jason Yan <yanaijie@huawei.com>
>> Cc: Diana Craciun <diana.craciun@nxp.com>
>> Cc: Michael Ellerman <mpe@ellerman.id.au>
>> Cc: Christophe Leroy <christophe.leroy@c-s.fr>
>> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
>> Cc: Paul Mackerras <paulus@samba.org>
>> Cc: Nicholas Piggin <npiggin@gmail.com>
>> Cc: Kees Cook <keescook@chromium.org>
>> Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
>> Reviewed-by: Diana Craciun <diana.craciun@nxp.com>
>> Tested-by: Diana Craciun <diana.craciun@nxp.com>
>> ---
>> arch/powerpc/mm/init-common.c | 5 +++++
>> arch/powerpc/mm/init_32.c | 5 -----
>> arch/powerpc/mm/init_64.c | 5 -----
>> 3 files changed, 5 insertions(+), 10 deletions(-)
>>
>> diff --git a/arch/powerpc/mm/init-common.c b/arch/powerpc/mm/init-common.c
>> index a84da92920f7..152ae0d21435 100644
>> --- a/arch/powerpc/mm/init-common.c
>> +++ b/arch/powerpc/mm/init-common.c
>> @@ -21,6 +21,11 @@
>> #include <asm/pgtable.h>
>> #include <asm/kup.h>
>>
>> +phys_addr_t memstart_addr = (phys_addr_t)~0ull;
>> +EXPORT_SYMBOL_GPL(memstart_addr);
>> +phys_addr_t kernstart_addr;
>> +EXPORT_SYMBOL_GPL(kernstart_addr);
>
> Would be nice if these can be __ro_after_init ?
>

Good idea.

> cheers
>
> .
>

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