diff mbox series

[v5,01/18] cpu: Do not warn on arch_register_cpu() returning -EPROBE_DEFER

Message ID 20240412143719.11398-2-Jonathan.Cameron@huawei.com
State Superseded
Headers show
Series ACPI/arm64: add support for virtual cpu hotplug | expand

Commit Message

Jonathan Cameron April 12, 2024, 2:37 p.m. UTC 
For arm64 the CPU registration cannot complete until the ACPI intepretter
us up and running so in those cases the arch specific
arch_register_cpu() will return -EPROBE_DEFER at this stage and the
registration will be attempted later.

Suggested-by: Rafael J. Wysocki <rafael@kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

---
v5: New patch.
    Note that for now no arch_register_cpu() calls return -EPROBE_DEFER
    so it has no impact until the arm64 one is added later in this series.
---
 drivers/base/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 56fba44ba391..b9d0d14e5960 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -558,7 +558,7 @@  static void __init cpu_dev_register_generic(void)
 
 	for_each_present_cpu(i) {
 		ret = arch_register_cpu(i);
-		if (ret)
+		if (ret != -EPROBE_DEFER)
 			pr_warn("register_cpu %d failed (%d)\n", i, ret);
 	}
 }