diff options
| -rw-r--r-- | arch/sparc/kernel/ioport.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c index 87ea0d03d975..e71ce79d8c15 100644 --- a/arch/sparc/kernel/ioport.c +++ b/arch/sparc/kernel/ioport.c @@ -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 } |