linux-kernel - [PATCH] staging: fix comedi build when ISA_DMA_API is enabled but COMEDI

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Date:	Thu, 08 Sep 2011 09:06:17 -0700
From:	Randy Dunlap <rdunlap@...otime.net>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
CC:	Greg KH <gregkh@...e.de>, driverdevel <devel@...verdev.osuosl.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ian Abbott <abbotti@....co.uk>,
	Frank Mori Hess <fmhess@...rs.sourceforge.net>
Subject: [PATCH] staging: fix comedi build when ISA_DMA_API is enabled but
 COMEDI_PCI is not enabled

From: Randy Dunlap <rdunlap@...otime.net>

Fix build when CONFIG_ISA_DMA_API is enabled but
CONFIG_COMEDI_PCI[_DRIVERS] is not enabled.
Fixes these build errors:

drivers/staging/comedi/drivers/ni_labpc.c: In function 'labpc_ai_cmd':
drivers/staging/comedi/drivers/ni_labpc.c:1351: error: implicit declaration of function 'labpc_suggest_transfer_size'
drivers/staging/comedi/drivers/ni_labpc.c: At top level:
drivers/staging/comedi/drivers/ni_labpc.c:1802: error: conflicting types for 'labpc_suggest_transfer_size'
drivers/staging/comedi/drivers/ni_labpc.c:1351: note: previous implicit declaration of 'labpc_suggest_transfer_size' was here

Signed-off-by: Randy Dunlap <rdunlap@...otime.net>
---

Greg, I had previously said that this patch was not needed since
you had merged a larger patch, but I had another build error which
this patch fixes, so it is now needed in mainline.

 drivers/staging/comedi/drivers/ni_labpc.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- lnx-31-rc5.orig/drivers/staging/comedi/drivers/ni_labpc.c
+++ lnx-31-rc5/drivers/staging/comedi/drivers/ni_labpc.c
@@ -241,8 +241,10 @@ static int labpc_eeprom_write_insn(struc
 				   struct comedi_insn *insn,
 				   unsigned int *data);
 static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd);
-#ifdef CONFIG_COMEDI_PCI
+#ifdef CONFIG_ISA_DMA_API
 static unsigned int labpc_suggest_transfer_size(struct comedi_cmd cmd);
+#endif
+#ifdef CONFIG_COMEDI_PCI
 static int labpc_find_device(struct comedi_device *dev, int bus, int slot);
 #endif
 static int labpc_dio_mem_callback(int dir, int port, int data,
--
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