On Mon, May 30, 2022 at 04:17:19PM +0200, Mark Brown wrote:
On Mon, May 30, 2022 at 09:22:48AM -0400, Sasha Levin wrote:
From: Mark Brown <broonie@xxxxxxxxxx>
[ Upstream commit 8a58bcd00e2e8d46afce468adc09fcd7968f514c ]
We need to explicitly enumerate all the ID registers which we rely on
for CPU capabilities in __read_sysreg_by_encoding(), ID_AA64SMFR0_EL1 was
missed from this list so we trip a BUG() in paths which rely on that
function such as CPU hotplug. Add the register.
+ read_sysreg_case(SYS_ID_AA64SMFR0_EL1);
This won't build on v5.18 since it does not contain SME support
and therefore lacks the definition for the SME feature register.
Dropped, thanks!
--
Thanks,
Sasha
