linux-kernel - [PATCH] ceph: fix compilation error when building kernel without FS

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Date:   Tue, 19 Apr 2022 09:49:37 +0100
From:   Luís Henriques <lhenriques@...e.de>
To:     Jeff Layton <jlayton@...nel.org>, Xiubo Li <xiubli@...hat.com>,
        Ilya Dryomov <idryomov@...il.com>
Cc:     ceph-devel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Luís Henriques <lhenriques@...e.de>,
        kernel test robot <lkp@...el.com>
Subject: [PATCH] ceph: fix compilation error when building kernel without FS_ENCRYPT

When compiling without FS_ENCRYPTION config, the kernel will fail to build
with:

fs/ceph/inode.c:196:7: error: no member named 'fscrypt_auth' in 'struct ceph_inode_info'

Enclose the code within an #ifdef CONFIG_FS_ENCRYPTION to fix it.

Reported-by: kernel test robot <lkp@...el.com>
Signed-off-by: Luís Henriques <lhenriques@...e.de>
---
 fs/ceph/inode.c | 2 ++
 1 file changed, 2 insertions(+)

Jeff, feel free to squash this patch into one of the previous patches from
the snapshot names encryption series.

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 636e4e0a9dc6..5de7bb9048b7 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -189,6 +189,7 @@ struct inode *ceph_get_snapdir(struct inode *parent)
 	ci->i_rbytes = 0;
 	ci->i_btime = ceph_inode(parent)->i_btime;
 
+#ifdef CONFIG_FS_ENCRYPTION
 	/* if encrypted, just borrow fscrypt_auth from parent */
 	if (IS_ENCRYPTED(parent)) {
 		struct ceph_inode_info *pci = ceph_inode(parent);
@@ -205,6 +206,7 @@ struct inode *ceph_get_snapdir(struct inode *parent)
 			goto err;
 		}
 	}
+#endif
 	if (inode->i_state & I_NEW) {
 		inode->i_op = &ceph_snapdir_iops;
 		inode->i_fop = &ceph_snapdir_fops;