linux-kernel - [PATCH v2 net-next] irda: fix link order if IRDA is built into the kernel

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Date:   Tue, 29 Aug 2017 19:46:22 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     David Miller <davem@...emloft.net>
Cc:     devel@...verdev.osuosl.org, netdev@...r.kernel.org,
        samuel@...tiz.org, linux-kernel@...r.kernel.org,
        kernel test robot <fengguang.wu@...el.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH v2 net-next] irda: fix link order if IRDA is built into the
 kernel

When moving the IRDA code out of net/ into drivers/staging/irda/net, the
link order changes when IRDA is built into the kernel.  That causes a
kernel crash at boot time as netfilter isn't initialized yet.

To fix this, build and link the irda networking code in the same exact
order that it was previously before the move.

Reported-by: kernel test robot <fengguang.wu@...el.com>
Reported-by: Geert Uytterhoeven <geert@...ux-m68k.org>
Signed-off-by: Greg Kroah-Hartman gregkh@...uxfoundation.org
---
v2 - don't force irda to be a module, make the Makefiles put irda back
     where it was before in the link order.

 drivers/staging/Makefile | 1 -
 net/Makefile             | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index fced929a0e67..1192caa94435 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -2,7 +2,6 @@
 
 obj-y				+= media/
 obj-y				+= typec/
-obj-$(CONFIG_IRDA)		+= irda/net/
 obj-$(CONFIG_IRDA)		+= irda/drivers/
 obj-$(CONFIG_PRISM2_USB)	+= wlan-ng/
 obj-$(CONFIG_COMEDI)		+= comedi/
diff --git a/net/Makefile b/net/Makefile
index 3d3feff3643b..ddd059c3dfa4 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_NETROM)		+= netrom/
 obj-$(CONFIG_ROSE)		+= rose/
 obj-$(CONFIG_AX25)		+= ax25/
 obj-$(CONFIG_CAN)		+= can/
+obj-$(CONFIG_IRDA)		+= ../drivers/staging/irda/net/
 obj-$(CONFIG_BT)		+= bluetooth/
 obj-$(CONFIG_SUNRPC)		+= sunrpc/
 obj-$(CONFIG_AF_RXRPC)		+= rxrpc/
-- 
2.14.1