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

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Date:   Wed, 3 Jun 2020 11:51:27 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Miklos Szeredi <miklos@...redi.hu>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        James Morris <jmorris@...ei.org>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        linux-security-module@...r.kernel.org
Subject: linux-next: build failure after merge of the overlayfs tree

Hi all,

After merging the overlayfs tree, today's linux-next build (x86_64
allmodconfig) failed like this:

ERROR: modpost: "security_file_ioctl" [fs/overlayfs/overlay.ko] undefined!

Caused by commit

  b5940870e166 ("ovl: call secutiry hook in ovl_real_ioctl()")

I have applied this patch for today.

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 3 Jun 2020 11:44:19 +1000
Subject: [PATCH] export security_file_ioctl

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

diff --git a/security/security.c b/security/security.c
index 51de970fbb1e..077ac86faacf 100644
--- a/security/security.c
+++ b/security/security.c
@@ -1459,6 +1459,7 @@ int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
 	return call_int_hook(file_ioctl, 0, file, cmd, arg);
 }
+EXPORT_SYMBOL_GPL(security_file_ioctl);
 
 static inline unsigned long mmap_prot(struct file *file, unsigned long prot)
 {
-- 
2.26.2

-- 
Cheers,
Stephen Rothwell

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