Re: [RFC] arm: use built-in byte swap function
From: Nicolas Pitre
Date: Fri Feb 08 2013 - 17:47:38 EST
On Fri, 8 Feb 2013, Woodhouse, David wrote:
> On Fri, 2013-02-08 at 15:04 -0500, Nicolas Pitre wrote:
> > On Fri, 8 Feb 2013, Woodhouse, David wrote:
> > > On Thu, 2013-02-07 at 18:13 +0000, Russell King - ARM Linux wrote:
> > > >
> > > > However, the biggest reason not to use libgcc is that we want to control
> > > > what gets used in the kernel - for example, no floating point, and no
> > > > use of 64 x 64bit division.
> > >
> > > Which is all very sensible. But there's no particular reason we couldn't
> > > add a __bswap[sd]i2 to the kernel's version of libgcc if we wanted to.
> > Absolutely.
> And then ARM can just set ARCH_USE_BUILTIN_BSWAP like other
> architectures do, right?
If that turns out to be beneficial over what we have now, then yes.
I didn't read back the whole thread to form an opinion though.
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