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ohci1394: make phys_dma parameter read-only

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Being able to switch physical DMA on and off at run time would be a nice
feature but a PITA to support by highlevel drivers and userspace apps.
Therefore allow it only to be set when the driver is being loaded.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Ben Collins <bcollins@ubuntu.com>
This commit is contained in:
Ben Collins 2006-06-12 18:13:42 -04:00
parent 4611ed3803
commit fa9b73997c
1 changed files with 1 additions and 1 deletions
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drivers/ieee1394/ohci1394.c
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@ -163,7 +163,7 @@ printk(level "%s: fw-host%d: " fmt "\n" , OHCI1394_DRIVER_NAME, ohci->host->id ,
/* Module Parameters */ /* Module Parameters */
static int phys_dma = 1; static int phys_dma = 1;
module_param(phys_dma, int, 0644); module_param(phys_dma, int, 0444);
MODULE_PARM_DESC(phys_dma, "Enable physical dma (default = 1)."); MODULE_PARM_DESC(phys_dma, "Enable physical dma (default = 1).");
static void dma_trm_tasklet(unsigned long data); static void dma_trm_tasklet(unsigned long data);