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sparc: convert /proc/io_map, /proc/dvma_map to seq_file

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Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexey Dobriyan 2009-09-01 17:54:07 -07:00 committed by David S. Miller
parent 75d9e34698
commit e7a088f935
1 changed files with 20 additions and 12 deletions
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32
arch/sparc/kernel/ioport.c
View file

@ -35,6 +35,7 @@
#include <linux/slab.h>
#include <linux/pci.h> /* struct pci_dev */
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/scatterlist.h>
#include <linux/of_device.h>
@ -663,26 +664,33 @@ EXPORT_SYMBOL(pci_dma_sync_sg_for_device);
#ifdef CONFIG_PROC_FS
static int
_sparc_io_get_info(char *buf, char **start, off_t fpos, int length, int *eof,
void *data)
static int sparc_io_proc_show(struct seq_file *m, void *v)
{
char *p = buf, *e = buf + length;
struct resource *r;
struct resource *root = m->private, *r;
const char *nm;
for (r = ((struct resource *)data)->child; r != NULL; r = r->sibling) {
if (p + 32 >= e) /* Better than nothing */
break;
for (r = root->child; r != NULL; r = r->sibling) {
if ((nm = r->name) == 0) nm = "???";
p += sprintf(p, "%016llx-%016llx: %s\n",
seq_printf(m, "%016llx-%016llx: %s\n",
(unsigned long long)r->start,
(unsigned long long)r->end, nm);
}
return p-buf;
return 0;
}
static int sparc_io_proc_open(struct inode *inode, struct file *file)
{
return single_open(file, sparc_io_proc_show, PDE(inode)->data);
}
static const struct file_operations sparc_io_proc_fops = {
.owner = THIS_MODULE,
.open = sparc_io_proc_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
#endif /* CONFIG_PROC_FS */
/*
@ -707,7 +715,7 @@ static struct resource *_sparc_find_resource(struct resource *root,
static void register_proc_sparc_ioport(void)
{
#ifdef CONFIG_PROC_FS
create_proc_read_entry("io_map",0,NULL,_sparc_io_get_info,&sparc_iomap);
create_proc_read_entry("dvma_map",0,NULL,_sparc_io_get_info,&_sparc_dvma);
proc_create_data("io_map", 0, NULL, &sparc_io_proc_fops, &sparc_iomap);
proc_create_data("dvma_map", 0, NULL, &sparc_io_proc_fops, &_sparc_dvma);
#endif
}