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

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Date:   Wed, 27 Jul 2022 20:29:10 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Yury Norov <yury.norov@...il.com>
Cc:     Michael Ellerman <mpe@...erman.id.au>,
        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 bitmap tree

Hi all,

After merging the bitmap tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

ERROR: modpost: ".arch_get_random_seed_longs" [arch/powerpc/kvm/kvm-hv.ko] undefined!

Caused by commit

  c3aaaf9e2ada ("powerpc: drop dependency on <asm/machdep.h> in archrandom.h")

It seems that the EXPORT was needed.  I applied the following for today.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 27 Jul 2022 20:21:53 +1000
Subject: [PATCH] fixup for "powerpc: drop dependency on <asm/machdep.h> in
 archrandom.h"

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

diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 91f8982c61a0..463072ed40e8 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -177,6 +177,7 @@ size_t arch_get_random_seed_longs(unsigned long *v, size_t max_longs)
 		return 1;
 	return 0;
 }
+EXPORT_SYMBOL_GPL(arch_get_random_seed_longs);
 
 void machine_halt(void)
 {
-- 
2.35.1

-- 
Cheers,
Stephen Rothwell

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