From: Arnd Bergmann <arnd@arndb.de>
To: Peter Huewe <peterhuewe@gmx.de>, Marcel Selhorst <tpmdd@selhorst.net>,
        Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
        Jason Gunthorpe <jgunthorpe@obsidianresearch.com>,
        Stefan Berger <stefanb@linux.vnet.ibm.com>,
        tpmdd-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
Subject: [PATCH] tpm: select ANON_INODES for proxy driver
Date: Thu, 28 Apr 2016 12:46:13 +0200
Message-Id: <1461840382-2996256-1-git-send-email-arnd@arndb.de>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 937
Lines: 29

The newly added vtpmx driver fails to build if CONFIG_ANON_INODES
is disabled:

drivers/char/built-in.o: In function `vtpmx_fops_ioctl':
(.text+0x97f8): undefined reference to `anon_inode_getfile'

This adds a Kconfig 'select' statement to ensure it's always there
when we need it.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 794c38e01358 ("tpm: Proxy driver for supporting multiple emulated TPMs")
---
 drivers/char/tpm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index 0eac596e33d1..bfdc5c0486aa 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -125,6 +125,7 @@ config TCG_CRB
 config TCG_VTPM_PROXY
 	tristate "VTPM Proxy Interface"
 	depends on TCG_TPM
+	select ANON_INODES
 	---help---
 	  This driver proxies for an emulated TPM (vTPM) running in userspace.
 	  A device /dev/vtpmx is provided that creates a device pair
-- 
2.7.0