Messages in this thread | | | Date | Sun, 5 Jun 2022 09:13:37 -0400 | From | Sasha Levin <> | Subject | Re: [PATCH AUTOSEL 5.18 063/159] arm64/sme: Add ID_AA64SMFR0_EL1 to __read_sysreg_by_encoding() |
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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@kernel.org> >> >> [ 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
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