linux-kernel - linux-next: build failure after merge of the tip tree

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Date:   Thu, 26 Mar 2020 13:52:58 +1100
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
        "H. Peter Anvin" <hpa@...or.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Sebastian Reichel <sre@...nel.org>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Qais Yousef <qais.yousef@....com>,
        Baolin Wang <baolin.wang7@...il.com>
Subject: linux-next: build failure after merge of the tip tree

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 <sfr@...b.auug.org.au>
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 <sfr@...b.auug.org.au>
---
 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

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