[PATCH] Build failure with !CONFIG_PCI and with CONFIG_ISAPNP=y && CONFIG_PNPBIOS=y

Trying to build latest BK-kernel with !CONFIG_PCI and with CONFIG_ISAPNP=y
and CONFIG_PNPBIOS=y I got the following build error:

  LD    vmlinux
drivers/built-in.o(.text+0x5486): In function
'pnpbios_parse_allocated_irqresource':
: undefined reference to 'pcibios_penalize_isa_irq'

Clearly pcibios_penalize_isa_irq() is meant to be called only with
CONFIG_PCI=y.
Signed-off-by: Mika Kukkonen <mikukkon@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

drivers/pnp/pnpbios/rsparser.c

@@ -7,7 +7,12 @@
 #include <linux/ctype.h>
 #include <linux/pnp.h>
 #include <linux/pnpbios.h>
+
+#ifdef CONFIG_PCI
 #include <linux/pci.h>
+#else
+inline void pcibios_penalize_isa_irq(int irq) {}
+#endif /* CONFIG_PCI */
 
 #include "pnpbios.h"