From: Shuo Liu <[email protected]>
vCPU removing code depends on CONFIG_HOTPLUG_CPU as it uses remove_cpu()
and add_cpu(). Make the vCPU removing interface building with
CONFIG_HOTPLUG_CPU.
../drivers/virt/acrn/hsm.c: In function ‘remove_cpu_store’:
../drivers/virt/acrn/hsm.c:389:3: error: implicit declaration of function
‘remove_cpu’; [-Werror=implicit-function-declaration]
remove_cpu(cpu);
../drivers/virt/acrn/hsm.c:402:2: error: implicit declaration of function
‘add_cpu’; [-Werror=implicit-function-declaration]
add_cpu(cpu);
Fixes: 279dcf693ac7 ("virt: acrn: Introduce an interface for Service VM to
control vCPU")
Reported-by: Randy Dunlap <[email protected]>
Acked-by: Randy Dunlap <[email protected]> # build-tested
Signed-off-by: Shuo Liu <[email protected]>
---
drivers/virt/acrn/hsm.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/virt/acrn/hsm.c b/drivers/virt/acrn/hsm.c
index 1f6b7c54a1a4..e340788aacdf 100644
--- a/drivers/virt/acrn/hsm.c
+++ b/drivers/virt/acrn/hsm.c
@@ -372,6 +372,7 @@ static int acrn_dev_release(struct inode *inode, struct
file *filp)
return 0;
}
+#ifdef CONFIG_HOTPLUG_CPU
static ssize_t remove_cpu_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
@@ -403,9 +404,12 @@ static ssize_t remove_cpu_store(struct device *dev,
return ret;
}
static DEVICE_ATTR_WO(remove_cpu);
+#endif
static struct attribute *acrn_attrs[] = {
+#ifdef CONFIG_HOTPLUG_CPU
&dev_attr_remove_cpu.attr,
+#endif
NULL
};
base-commit: 671176b0016c80b3943cb5387312c886aba3308d
--
2.28.0
