linux-kernel - [patch] irda: fix !PNP support for drivers/net/irda/smsc-ircc2.c

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Date:	Sun, 4 May 2008 00:26:46 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	linux-kernel@...r.kernel.org
Cc:	Dmitry Torokhov <dtor_core@...ritech.net>,
	Bjorn Helgaas <bjorn.helgaas@...com>
Subject: [patch] irda: fix !PNP support for drivers/net/irda/smsc-ircc2.c

x86.git testing found this build bug on v2.6.26-rc1:

  ERROR: "pnp_get_resource" [drivers/net/irda/smsc-ircc2.ko] undefined!
  make[1]: *** [__modpost] Error 1
  make: *** [modules] Error 2

the driver did not anticipate the case of !CONFIG_PNP which is rare but 
still possible. Instead of restricting the driver to PNP-only in the 
Kconfig space, add the (trivial) dummy struct pnp_driver - this is that 
other drivers use in the !PNP case too.

The driver itself can in theory be initialized on !PNP too in certain 
cases, via smsc_ircc_legacy_probe().

Patch only minimally build tested, i dont have this hardware.

Signed-off-by: Ingo Molnar <mingo@...e.hu>
---
 drivers/net/irda/smsc-ircc2.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

Index: linux/drivers/net/irda/smsc-ircc2.c
===================================================================
--- linux.orig/drivers/net/irda/smsc-ircc2.c
+++ linux/drivers/net/irda/smsc-ircc2.c
@@ -376,6 +376,7 @@ MODULE_DEVICE_TABLE(pnp, smsc_ircc_pnp_t
 
 static int pnp_driver_registered;
 
+#ifdef CONFIG_PNP
 static int __init smsc_ircc_pnp_probe(struct pnp_dev *dev,
 				      const struct pnp_device_id *dev_id)
 {
@@ -402,7 +403,9 @@ static struct pnp_driver smsc_ircc_pnp_d
 	.id_table	= smsc_ircc_pnp_table,
 	.probe		= smsc_ircc_pnp_probe,
 };
-
+#else /* CONFIG_PNP */
+static struct pnp_driver smsc_ircc_pnp_driver;
+#endif
 
 /*******************************************************************************
  *
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