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

From Florian Fainelli <f.fainelli@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH v3 2/4] asm-generic: Provide a fncpy() implementation
Date 2017-06-19 19:30 +0200
Message-ID <tU8EW-5CR-11@gated-at.bofh.it> (permalink)
References <tT9tn-7uo-3@gated-at.bofh.it> <tT9to-7uo-15@gated-at.bofh.it> <tU8EW-5CR-13@gated-at.bofh.it> <tU8EW-5CR-15@gated-at.bofh.it>
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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

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Thread

[PATCH v3 2/4] asm-generic: Provide a fncpy() implementation Florian Fainelli <f.fainelli@gmail.com> - 2017-06-17 02:10 +0200
  Re: [PATCH v3 2/4] asm-generic: Provide a fncpy() implementation Florian Fainelli <f.fainelli@gmail.com> - 2017-06-19 19:30 +0200
  Re: [PATCH v3 2/4] asm-generic: Provide a fncpy() implementation Russell King - ARM Linux <linux@armlinux.org.uk> - 2017-06-19 19:50 +0200
  Re: [PATCH v3 2/4] asm-generic: Provide a fncpy() implementation Florian Fainelli <florian.fainelli@broadcom.com> - 2017-06-19 23:00 +0200

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