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Message-ID: <20231026192830.21288-1-rdunlap@infradead.org>
Date:   Thu, 26 Oct 2023 12:28:30 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Chuck Lever <chuck.lever@...cle.com>,
        Jeff Layton <jlayton@...nel.org>, linux-nfs@...r.kernel.org,
        Amir Goldstein <amir73il@...il.com>,
        Christian Brauner <brauner@...nel.org>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel@...r.kernel.org
Subject: [PATCH] exportfs: handle CONFIG_EXPORTFS=m also

When CONFIG_EXPORTFS=m, there are multiple build errors due to
the header <linux/exportfs.h> not handling the =m setting correctly.
Change the header file to check for CONFIG_EXPORTFS enabled at all
instead of just set =y.

Fixes: dfaf653dc415 ("exportfs: make ->encode_fh() a mandatory method for NFS export")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Chuck Lever <chuck.lever@...cle.com>
Cc: Jeff Layton <jlayton@...nel.org>
Cc: linux-nfs@...r.kernel.org
Cc: Amir Goldstein <amir73il@...il.com>
Cc: Christian Brauner <brauner@...nel.org>
Cc: Alexander Viro <viro@...iv.linux.org.uk>
Cc: linux-fsdevel@...r.kernel.org

---
 include/linux/exportfs.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -- a/include/linux/exportfs.h b/include/linux/exportfs.h
--- a/include/linux/exportfs.h
+++ b/include/linux/exportfs.h
@@ -314,7 +314,7 @@ extern struct dentry *exportfs_decode_fh
 /*
  * Generic helpers for filesystems.
  */
-#ifdef CONFIG_EXPORTFS
+#if IS_ENABLED(CONFIG_EXPORTFS)
 int generic_encode_ino32_fh(struct inode *inode, __u32 *fh, int *max_len,
 			    struct inode *parent);
 #else

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