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pcmcia: use DMA_MASK_NONE for the default for all pcmcia devices

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Most non cardbus devices can't do dma, so flag them as such in the device
creation routine.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Natalie Protasevich <protasnb@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
James Bottomley 2007-10-16 01:23:58 -07:00 committed by Linus Torvalds
parent 32e8f70230
commit 43d9f7fda1
2 changed files with 5 additions and 0 deletions
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4
drivers/pcmcia/ds.c
View File

@ -23,6 +23,7 @@
#include <linux/crc32.h>
#include <linux/firmware.h>
#include <linux/kref.h>
#include <linux/dma-mapping.h>
#define IN_CARD_SERVICES
#include <pcmcia/cs_types.h>
@ -670,6 +671,9 @@ struct pcmcia_device * pcmcia_device_add(struct pcmcia_socket *s, unsigned int f
p_dev->dev.bus = &pcmcia_bus_type;
p_dev->dev.parent = s->dev.parent;
p_dev->dev.release = pcmcia_release_dev;
/* by default don't allow DMA */
p_dev->dma_mask = DMA_MASK_NONE;
p_dev->dev.dma_mask = &p_dev->dma_mask;
bus_id_len = sprintf (p_dev->dev.bus_id, "%d.%d", p_dev->socket->sock, p_dev->device_no);
p_dev->devname = kmalloc(6 + bus_id_len + 1, GFP_KERNEL);

1
include/pcmcia/ds.h
View File

@ -184,6 +184,7 @@ struct pcmcia_device {
char * prod_id[4];
u64 dma_mask;
struct device dev;
#ifdef CONFIG_PCMCIA_IOCTL