[PATCH v3 2/4] asm-generic: Provide a fncpy() implementation

Florian Fainelli
2017-06-19T17:27:33Z

On 06/19/2017 08:18 AM, Yury Norov wrote:
> On Mon, Jun 19, 2017 at 02:51:08AM +0300, Yury Norov wrote:
>> Hi Florian,
>>
>> Some questions and thoughts inline.
>>
>> Yury
>>
>> On Fri, Jun 16, 2017 at 05:07:42PM -0700, Florian Fainelli wrote:
>>> Define a generic fncpy() implementation largely based on the ARM version
>>> that requires an 8 bytes alignment for the destination address where to
>>> copy this function as well as the function's own address.
>>>
>>> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
>>> ---
>>> include/asm-generic/fncpy.h | 93 +++++++++++++++++++++++++++++++++++++++++++++
>>> 1 file changed, 93 insertions(+)
>>> create mode 100644 include/asm-generic/fncpy.h
>
> One else thing I forgot to ask - now you have the generic
> implementation for fncpy(), so do you really need to save arm
> version of it?

Yes, it needs to deal with the Thumb bit, and there is no point in
making the generic implementation extremely flexible to support that
special case.

Thanks
--
Florian