Re: [PATCH 2/2] arm*: efi: drop writable mapping of the UEFI System table

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On 23 March 2016 at 17:16, Matt Fleming <matt@xxxxxxxxxxxxxxxxxxx> wrote:
> On Tue, 22 Mar, at 04:08:24PM, Ard Biesheuvel wrote:
>>
>> This patch causes a warning I hadn't spotted before sending it out.
>> Could you fold this in please?
>>
>> diff --git a/drivers/firmware/efi/arm-runtime.c
>> b/drivers/firmware/efi/arm-runtime.c
>> index 6c97d4884fc7..fe749da9997e 100644
>> --- a/drivers/firmware/efi/arm-runtime.c
>> +++ b/drivers/firmware/efi/arm-runtime.c
>> @@ -72,8 +72,8 @@ static bool __init efi_virtmap_init(void)
>>                  */
>>                 if (efi_system_table >= phys &&
>>                     efi_system_table < phys + (md->num_pages * EFI_PAGE_SIZE)) {
>> -                       efi.systab = (void *)(efi_system_table - phys +
>> -                                             md->virt_addr);
>> +                       efi.systab = (void *)(unsigned long)(efi_system_table -
>> +                                                         phys + md->virt_addr);
>>                         systab_found = true;
>>                 }
>>         }
>
> Done, please check,
>
>   https://git.kernel.org/cgit/linux/kernel/git/mfleming/efi.git/commit/?h=next&id=4fd5c619dcf4f3d2c86d4a686ce66fc01e877a08

Looks good to me, thanks.
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