[PATCH 416/437] media/platform: amphion: convert to read/write iterators

Jens Axboe
2024-04-11T15:43:17Z

drivers/media/platform/amphion/vpu_dbg.c | 24 +++++++++++-------------
1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/media/platform/amphion/vpu_dbg.c b/drivers/media/platform/amphion/vpu_dbg.c
index 940e5bda5fa3..71c752081ab3 100644
--- a/drivers/media/platform/amphion/vpu_dbg.c
+++ b/drivers/media/platform/amphion/vpu_dbg.c
@@ -353,21 +353,19 @@ static int vpu_dbg_inst_open(struct inode *inode, struct file *filp)
return single_open(filp, vpu_dbg_instance, inode->i_private);
}

-static ssize_t vpu_dbg_inst_write(struct file *file,
- const char __user *user_buf, size_t size, loff_t *ppos)
+static ssize_t vpu_dbg_inst_write(struct kiocb *iocb, struct iov_iter *from)
{
- struct seq_file *s = file->private_data;
+ struct seq_file *s = iocb->ki_filp->private_data;
struct vpu_inst *inst = s->private;

vpu_session_debug(inst);

- return size;
+ return iov_iter_count(from);
}

-static ssize_t vpu_dbg_core_write(struct file *file,
- const char __user *user_buf, size_t size, loff_t *ppos)
+static ssize_t vpu_dbg_core_write(struct kiocb *iocb, struct iov_iter *from)
{
- struct seq_file *s = file->private_data;
+ struct seq_file *s = iocb->ki_filp->private_data;
struct vpu_core *core = s->private;

pm_runtime_resume_and_get(core->dev);
@@ -382,7 +380,7 @@ static ssize_t vpu_dbg_core_write(struct file *file,
mutex_unlock(&core->lock);
pm_runtime_put_sync(core->dev);

- return size;
+ return iov_iter_count(from);
}

static int vpu_dbg_core_open(struct inode *inode, struct file *filp)
@@ -399,23 +397,23 @@ static const struct file_operations vpu_dbg_inst_fops = {
.owner = THIS_MODULE,
.open = vpu_dbg_inst_open,
.release = single_release,
- .read = seq_read,
- .write = vpu_dbg_inst_write,
+ .read_iter = seq_read_iter,
+ .write_iter = vpu_dbg_inst_write,
};

static const struct file_operations vpu_dbg_core_fops = {
.owner = THIS_MODULE,
.open = vpu_dbg_core_open,
.release = single_release,
- .read = seq_read,
- .write = vpu_dbg_core_write,
+ .read_iter = seq_read_iter,
+ .write_iter = vpu_dbg_core_write,
};

static const struct file_operations vpu_dbg_fwlog_fops = {
.owner = THIS_MODULE,
.open = vpu_dbg_fwlog_open,
.release = single_release,
- .read = seq_read,
+ .read_iter = seq_read_iter,
};

int vpu_inst_create_dbgfs_file(struct vpu_inst *inst)
--
2.43.0