linux-kernel - linux-next: build failure after merge of the header

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Date: Tue, 19 Dec 2023 15:25:45 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Kent Overstreet <kent.overstreet@...ux.dev>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Next
 Mailing List <linux-next@...r.kernel.org>
Subject: linux-next: build failure after merge of the header_cleanup tree

Hi all,

After merging the header_cleanup tree, today's linux-next build (s390
defconfig) failed like this:

arch/s390/kernel/signal.c: In function 'arch_do_signal_or_restart':
arch/s390/kernel/signal.c:491:17: error: implicit declaration of function 'rseq_signal_deliver' [-Werror=implicit-function-declaration]
  491 |                 rseq_signal_deliver(&ksig, regs);
      |                 ^~~~~~~~~~~~~~~~~~~

Presumably caused by commit

  cd1146fc0ad3 ("rseq: Split out rseq.h from sched.h")

I have applied the following patch for today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Tue, 19 Dec 2023 15:19:02 +1100
Subject: [PATCH] fixup for s390 and "rseq: Split out rseq.h from sched.h"

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 arch/s390/kernel/signal.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 27bcc43fe1b7..43e9661cd715 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -12,6 +12,7 @@
 
 #include <linux/sched.h>
 #include <linux/sched/task_stack.h>
+#include <linux/rseq.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
 #include <linux/kernel.h>
-- 
2.40.1

-- 
Cheers,
Stephen Rothwell

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