Hi all, After merging the tip tree, today's linux-next build (x86_64 allmodconfig) failed like this: drivers/power/reset/sc27xx-poweroff.c: In function 'sc27xx_poweroff_shutdown': drivers/power/reset/sc27xx-poweroff.c:38:4: error: implicit declaration of function 'cpu_down' [-Werror=implicit-function-declaration] 38 | cpu_down(cpu); | ^~~~~~~~ Caused by commit 33c3736ec888 ("cpu/hotplug: Hide cpu_up/down()") interacting with commit 274afbc3ad33 ("power: reset: sc27xx: Change to use cpu_down()") from the battery tree. I have added the following merge fix patch: From: Stephen Rothwell Date: Thu, 26 Mar 2020 13:42:00 +1100 Subject: [PATCH] power: reset: sc27xx: use remove_cpu instead of cpu_down Signed-off-by: Stephen Rothwell --- drivers/power/reset/sc27xx-poweroff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/power/reset/sc27xx-poweroff.c b/drivers/power/reset/sc27xx-poweroff.c index 69863074daf6..90287c31992c 100644 --- a/drivers/power/reset/sc27xx-poweroff.c +++ b/drivers/power/reset/sc27xx-poweroff.c @@ -35,7 +35,7 @@ static void sc27xx_poweroff_shutdown(void) for_each_online_cpu(cpu) { if (cpu != smp_processor_id()) - cpu_down(cpu); + remove_cpu(cpu); } #endif } -- 2.25.0 -- Cheers, Stephen Rothwell