nfs: NFS_SWAP should depend on SWAP

If CONFIG_SWAP=n, it does not make much sense to offer the user the
option to enable support for swapping over NFS, as that will still fail
at run time:

    # swapon /swap
    swapon: /swap: swapon failed: Function not implemented

Fix this by adding a dependency on CONFIG_SWAP.

Fixes: a564b8f0398636ba ("nfs: enable swap on NFS")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index 295a7a2..e7dd07f 100644 (file)
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -90,7 +90,7 @@ config NFS_V4
 config NFS_SWAP
        bool "Provide swap over NFS support"
        default n
-       depends on NFS_FS
+       depends on NFS_FS && SWAP
        select SUNRPC_SWAP
        help
          This option enables swapon to work on files located on NFS mounts.