Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code. Signed-off-by: Qinglang Miao <miaoqinglang@xxxxxxxxxx> --- v2: based on linux-next(20200917), and can be applied to mainline cleanly now. drivers/crypto/caam/dpseci-debugfs.c | 23 ++--------------------- 1 file changed, 2 insertions(+), 21 deletions(-) diff --git a/drivers/crypto/caam/dpseci-debugfs.c b/drivers/crypto/caam/dpseci-debugfs.c index c5bfc923a..0eca8c2fd 100644 --- a/drivers/crypto/caam/dpseci-debugfs.c +++ b/drivers/crypto/caam/dpseci-debugfs.c @@ -44,33 +44,14 @@ static int dpseci_dbg_fqs_show(struct seq_file *file, void *offset) return 0; } -static int dpseci_dbg_fqs_open(struct inode *inode, struct file *file) -{ - int err; - struct dpaa2_caam_priv *priv; - - priv = (struct dpaa2_caam_priv *)inode->i_private; - - err = single_open(file, dpseci_dbg_fqs_show, priv); - if (err < 0) - dev_err(priv->dev, "single_open() failed\n"); - - return err; -} - -static const struct file_operations dpseci_dbg_fq_ops = { - .open = dpseci_dbg_fqs_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; +DEFINE_SHOW_ATTRIBUTE(dpseci_dbg_fqs); void dpaa2_dpseci_debugfs_init(struct dpaa2_caam_priv *priv) { priv->dfs_root = debugfs_create_dir(dev_name(priv->dev), NULL); debugfs_create_file("fq_stats", 0444, priv->dfs_root, priv, - &dpseci_dbg_fq_ops); + &dpseci_dbg_fqs_fops); } void dpaa2_dpseci_debugfs_exit(struct dpaa2_caam_priv *priv) -- 2.23.0