[PATCH] arm64/fpsimd: Add interface for kernel use of SVE and SME

Will Deacon will at kernel.org
Mon Nov 7 05:03:55 PST 2022


On Sat, Nov 05, 2022 at 01:58:23PM +0000, Mark Brown wrote:
> On Sat, Nov 05, 2022 at 01:29:34AM -0700, Christoph Hellwig wrote:
> > On Thu, Nov 03, 2022 at 06:07:04PM +0000, Mark Brown wrote:
> > > +EXPORT_SYMBOL(kernel_fp_begin);
> 
> > All in-kernel FPU usage needs to be EXPORT_SYMBOL_GPL.
> 
> That'd be a change for arm4, the existing exports for access to
> NEON are plain EXPORT_SYMBOLs.  I'll defer that one to Catalin
> and Will.

I'm happy for everything to use the GPL flavours. I suspect the existing
exports are like they are only because the macro is shorter to type.

Will



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