# \[PATCH 1/5\] ARM: wire up HWCAP2 feature bits to the CPU modalias

- From: Ard Biesheuvel \<hidden\>
- Date: 2017-01-02 21:06:04 
- List: linux-arm-kernel
- Page: https://ratatoskr.run/linux-arm-kernel/2017/01/8479410
- Thread: https://ratatoskr.run/linux-crypto/2016/10/8478825/t.md

```text
On 31 October 2016 at 16:13, Russell King - ARM Linux
[ref] wrote:
> On Sat, Oct 29, 2016 at 11:08:36AM +0100, Ard Biesheuvel wrote:
>> On 18 October 2016 at 11:52, Ard Biesheuvel [ref] wrote:
>> > Wire up the generic support for exposing CPU feature bits via the
>> > modalias in /sys/device/system/cpu. This allows udev to automatically
>> > load modules for things like crypto algorithms that are implemented
>> > using optional instructions.
>> >
>> > Signed-off-by: Ard Biesheuvel <redacted>
>> > ---
>> >  arch/arm/Kconfig                  |  1 +
>> >  arch/arm/include/asm/cpufeature.h | 32 ++++++++++++++++++++
>> >  2 files changed, 33 insertions(+)
>> >
>>
>> Russell,
>>
>> do you have any concerns regarding this patch? If not, I will drop it
>> into the patch system.
>
> It's still something I need to look at... I've been offline last week,
> and sort-of offline the previous week, so I'm catching up.
>

Hi Russell,

Any thoughts yet?

Thanks,
Ard.
```