[PATCH 1/3] arm64: fpsimd: Drop unneeded 'busy' flag

[Mark Brown]

On Tue, Nov 21, 2023 at 02:52:14PM +0100, Ard Biesheuvel wrote:
> From: Ard Biesheuvel <ardb at kernel.org>
> 
> Kernel mode NEON will preserve the user mode FPSIMD state by saving it
> into the task struct before clobbering the registers. In order to avoid
> the need for preserving kernel mode state too, we disallow nested use of
> kernel mode NEON, i..e, use in softirq context while the interrupted
> task context was using kernel mode NEON too.

Reviewed-by: Mark Brown <broonie at kernel.org>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20231121/5e2be33b/attachment.sig>