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Commit 3160977a authored by Steve Wise's avatar Steve Wise Committed by Roland Dreier
Browse files

RDMA/cxgb4: Use simple_read_from_buffer() for debugfs handlers 



We can replace our equivalent open-coded version.

Signed-off-by: default avatarSteve Wise <swise@opengridcomputing.com>
Signed-off-by: default avatarRoland Dreier <rolandd@cisco.com>
parent 8bbac892

drivers/infiniband/hw/cxgb4/device.c

+1 −25
Original line number Diff line number Diff line
@@ -68,32 +68,8 @@ static ssize_t debugfs_read(struct file *file, char __user *buf, size_t count, 
			    loff_t *ppos)

{

	struct c4iw_debugfs_data *d = file->private_data;

	loff_t pos = *ppos;

	loff_t avail = d->pos;



	if (pos < 0)

		return -EINVAL;

	if (pos >= avail)

		return 0;

	if (count > avail - pos)

		count = avail - pos;



	while (count) {

		size_t len = 0;



		len = min((int)count, (int)d->pos - (int)pos);

		if (copy_to_user(buf, d->buf + pos, len))

			return -EFAULT;

		if (len == 0)

			return -EINVAL;



		buf += len;

		pos += len;

		count -= len;

	}

	count = pos - *ppos;

	*ppos = pos;

	return count;

	return simple_read_from_buffer(buf, count, ppos, d->buf, d->pos);

}



static int dump_qp(int id, void *p, void *data)