Convert /proc/device-tree/ to seq_file
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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5a1eb5c445
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@ -7,6 +7,7 @@
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#include <linux/init.h>
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#include <linux/time.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/stat.h>
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#include <linux/string.h>
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#include <asm/prom.h>
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@ -25,26 +26,27 @@ static struct proc_dir_entry *proc_device_tree;
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/*
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* Supply data on a read from /proc/device-tree/node/property.
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*/
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static int property_read_proc(char *page, char **start, off_t off,
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int count, int *eof, void *data)
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static int property_proc_show(struct seq_file *m, void *v)
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{
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struct property *pp = data;
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int n;
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struct property *pp = m->private;
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if (off >= pp->length) {
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*eof = 1;
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return 0;
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}
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n = pp->length - off;
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if (n > count)
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n = count;
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else
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*eof = 1;
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memcpy(page, (char *)pp->value + off, n);
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*start = page;
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return n;
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seq_write(m, pp->value, pp->length);
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return 0;
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}
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static int property_proc_open(struct inode *inode, struct file *file)
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{
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return single_open(file, property_proc_show, PDE(inode)->data);
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}
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static const struct file_operations property_proc_fops = {
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.owner = THIS_MODULE,
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.open = property_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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/*
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* For a node with a name like "gc@10", we make symlinks called "gc"
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* and "@10" to it.
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@ -63,10 +65,9 @@ __proc_device_tree_add_prop(struct proc_dir_entry *de, struct property *pp,
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* Unfortunately proc_register puts each new entry
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* at the beginning of the list. So we rearrange them.
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*/
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ent = create_proc_read_entry(name,
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strncmp(name, "security-", 9)
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? S_IRUGO : S_IRUSR, de,
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property_read_proc, pp);
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ent = proc_create_data(name,
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strncmp(name, "security-", 9) ? S_IRUGO : S_IRUSR,
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de, &property_proc_fops, pp);
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if (ent == NULL)
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return NULL;
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