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Commit e7a088f9 authored by Alexey Dobriyan's avatar Alexey Dobriyan Committed by David S. Miller
Browse files

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



Signed-off-by: default avatarAlexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 75d9e346

arch/sparc/kernel/ioport.c

+20 −12
Original line number Diff line number Diff line
@@ -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

}