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| author | Olof Johansson <olof@lixom.net> | 2007-05-09 23:00:20 -0500 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-05-11 18:18:39 -0400 |
| commit | b9a3b4d1453689f2927668fcdc4827fdccf44d1b (patch) | |
| tree | bf9d3841ce75aa1d2a413d95bc80b6fc73321c2b /drivers/ata/pata_platform.c | |
| parent | b196fc69f7be7b4454781add9c2d5173f44d509b (diff) | |
| download | lwn-b9a3b4d1453689f2927668fcdc4827fdccf44d1b.tar.gz lwn-b9a3b4d1453689f2927668fcdc4827fdccf44d1b.zip | |
pata_platform: don't use generic ata_port_start
I have a system where I have a simple IDE controller that sits on a
local bus without bus master dma capability, and thus no dma_mapping
ops defined for the device/bus.
pata_platform works great for me, with the exception of using the generic
ata_port_start which tries to do a dmam_alloc_coherent.
Looks like it doesn't need to allocate a prd table at all, so replace it
with a dummy function instead.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/ata/pata_platform.c')
| -rw-r--r-- | drivers/ata/pata_platform.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c index a0a650c7f272..1f6384895a4f 100644 --- a/drivers/ata/pata_platform.c +++ b/drivers/ata/pata_platform.c @@ -48,6 +48,8 @@ static int pata_platform_set_mode(struct ata_port *ap, struct ata_device **unuse return 0; } +static int ata_dummy_ret0(struct ata_port *ap) { return 0; } + static struct scsi_host_template pata_platform_sht = { .module = THIS_MODULE, .name = DRV_NAME, @@ -91,7 +93,7 @@ static struct ata_port_operations pata_platform_port_ops = { .irq_on = ata_irq_on, .irq_ack = ata_irq_ack, - .port_start = ata_port_start, + .port_start = ata_dummy_ret0, }; static void pata_platform_setup_port(struct ata_ioports *ioaddr, |