linux-kernel - [PATCH 4.16 01/18] sparc64: Oracle DAX driver depends on SPARC64

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Date:   Wed, 11 Apr 2018 00:23:36 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Kees Cook <keescook@...omium.org>,
        Guenter Roeck <linux@...ck-us.net>,
        "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 4.16 01/18] sparc64: Oracle DAX driver depends on SPARC64

4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Guenter Roeck <linux@...ck-us.net>

commit 9c548bb5823dfcf7a16c6e65976d84d9581208c9 upstream.

sparc:allmodconfig fails to build as follows.

ERROR: "mdesc_release" [drivers/sbus/char/oradax.ko] undefined!
ERROR: "sun4v_hvapi_register" [drivers/sbus/char/oradax.ko] undefined!
ERROR: "mdesc_get_property" [drivers/sbus/char/oradax.ko] undefined!
ERROR: "mdesc_node_by_name" [drivers/sbus/char/oradax.ko] undefined!
ERROR: "mdesc_grab" [drivers/sbus/char/oradax.ko] undefined!
ERROR: "sun4v_ccb_info" [drivers/sbus/char/oradax.ko] undefined!
ERROR: "sun4v_ccb_submit" [drivers/sbus/char/oradax.ko] undefined!
ERROR: "sun4v_ccb_kill" [drivers/sbus/char/oradax.ko] undefined!

The symbols are only available with SPARC64 builds, thus the driver
depends on it.

Fixes: dd0273284c74 ("sparc64: Oracle DAX driver")
Cc: Kees Cook <keescook@...omium.org>
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/sbus/char/Kconfig |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

--- a/drivers/sbus/char/Kconfig
+++ b/drivers/sbus/char/Kconfig
@@ -72,7 +72,8 @@ config DISPLAY7SEG

 config ORACLE_DAX
 	tristate "Oracle Data Analytics Accelerator"
-	default m if SPARC64
+	depends on SPARC64
+	default m
 	help
 	 Driver for Oracle Data Analytics Accelerator, which is
 	 a coprocessor that performs database operations in hardware.