linux-kernel - [PATCH] ide: icside.c: Fix compile with CONFIG_BLK_DEV_IDEDMA

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Date:	Tue, 29 May 2012 12:30:02 +0200
From:	Christian Dietrich <christian.dietrich@...ormatik.uni-erlangen.de>
To:	"David S. Miller" <davem@...emloft.net>
Cc:	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	vamos-dev@...ts.cs.fau.de
Subject: [PATCH] ide: icside.c: Fix compile with CONFIG_BLK_DEV_IDEDMA_ICS=n

The icside driver can be configured without DMA support, but it
doesn't compile in this case, because DMA operations are referenced.

drivers/ide/icside.c:523: error: âicside_v6_port_opsâ undeclared
drivers/ide/icside.c:522: error: âicside_dma_initâ undeclared

Signed-off-by: Christian Dietrich <christian.dietrich@...ormatik.uni-erlangen.de>
---
 drivers/ide/icside.c |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

I attach the configuration, that exposes this compilation error. This patch was
*NOT* tested on real hardware. I don't if the fix really does solve the
problem, but at least it is a hint that there is a problem.

diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c
index 8716066..62c59c1 100644
--- a/drivers/ide/icside.c
+++ b/drivers/ide/icside.c
@@ -271,7 +271,7 @@ static void icside_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
 
 	ide_set_drivedata(drive, (void *)cycle_time);
 
-	printk("%s: %s selected (peak %dMB/s)\n", drive->name,
+	printk("%s: %s selected (peak %ldMB/s)\n", drive->name,
 		ide_xfer_verbose(xfer_mode),
 		2000 / (unsigned long)ide_get_drivedata(drive));
 }
@@ -456,7 +456,9 @@ err_free:
 static const struct ide_port_info icside_v6_port_info __initdata = {
 	.init_dma		= icside_dma_off_init,
 	.port_ops		= &icside_v6_no_dma_port_ops,
+#ifdef CONFIG_BLK_DEV_IDEDMA_ICS
 	.dma_ops		= &icside_v6_dma_ops,
+#endif
 	.host_flags		= IDE_HFLAG_SERIALIZE | IDE_HFLAG_MMIO,
 	.mwdma_mask		= ATA_MWDMA2,
 	.swdma_mask		= ATA_SWDMA2,
@@ -518,10 +520,12 @@ icside_register_v6(struct icside_state *state, struct expansion_card *ec)
 
 	ecard_set_drvdata(ec, state);
 
+#ifdef CONFIG_BLK_DEV_IDEDMA_ICS
 	if (ec->dma != NO_DMA && !request_dma(ec->dma, DRV_NAME)) {
 		d.init_dma = icside_dma_init;
 		d.port_ops = &icside_v6_port_ops;
 	} else
+#endif
 		d.dma_ops = NULL;
 
 	ret = ide_host_register(host, &d, hws);
-- 
1.7.5.4

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