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SubjectRe: [PATCH] virt: acrn: add hotplug_cpu dependency
Hi Arnd,

There is already a patchset for this build issue. Please refer to
https://lore.kernel.org/lkml/20210221134339.57851-1-shuo.a.liu@intel.com/.

Hi Greg,
Would you like accept that patchset in you tree?

Thanks
shuo

On Thu 25.Feb'21 at 14:38:30 +0100, Arnd Bergmann wrote:
>From: Arnd Bergmann <arnd@arndb.de>
>
>Without CPU hotplug, acrn fails to build:
>
>drivers/virt/acrn/hsm.c:389:3: error: implicit declaration of function 'remove_cpu' [-Werror,-Wimplicit-function-declaration]
> remove_cpu(cpu);
> ^
>drivers/virt/acrn/hsm.c:402:2: error: implicit declaration of function 'add_cpu' [-Werror,-Wimplicit-function-declaration]
> add_cpu(cpu);
> ^
>
>Enforce the dependency through Kconfig to avoid the build failure.
>
>Fixes: 666834c47d3b ("virt: acrn: Introduce ACRN HSM basic driver")
>Signed-off-by: Arnd Bergmann <arnd@arndb.de>
>---
> drivers/virt/acrn/Kconfig | 1 +
> 1 file changed, 1 insertion(+)
>
>diff --git a/drivers/virt/acrn/Kconfig b/drivers/virt/acrn/Kconfig
>index 3e1a61c9d8d8..fbb0e3234aaf 100644
>--- a/drivers/virt/acrn/Kconfig
>+++ b/drivers/virt/acrn/Kconfig
>@@ -2,6 +2,7 @@
> config ACRN_HSM
> tristate "ACRN Hypervisor Service Module"
> depends on ACRN_GUEST
>+ depends on HOTPLUG_CPU
> select EVENTFD
> help
> ACRN Hypervisor Service Module (HSM) is a kernel module which
>--
>2.29.2
>

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