On 04/09/2015 09:49 AM, Nicolin Chen wrote:
On Wed, Apr 08, 2015 at 02:21:24PM -0300, Fabio Estevam wrote:
From: Fabio Estevam fabio.estevam@freescale.com
Since commit 81c7cfd1b22a0 ("ASoC: Move debugfs registration to the component level") ASoC core code deals with registering debugfs, so we should not be creating the debugfs directory locally in order to avoid the following warning:
fsl-ssi-dai 2028000.ssi: ASoC: Failed to create component debugfs directory
Signed-off-by: Fabio Estevam fabio.estevam@freescale.com
Changes since v1:
- Only remove dir creation/remove as suggested by Mark Brown
diff --git a/sound/soc/fsl/fsl_ssi_dbg.c b/sound/soc/fsl/fsl_ssi_dbg.c index 5469ffb..46cea84 100644 --- a/sound/soc/fsl/fsl_ssi_dbg.c +++ b/sound/soc/fsl/fsl_ssi_dbg.c @@ -142,22 +142,15 @@ static const struct file_operations fsl_ssi_stats_ops = {
int fsl_ssi_debugfs_create(struct fsl_ssi_dbg *ssi_dbg, struct device *dev) {
- ssi_dbg->dbg_dir = debugfs_create_dir(dev_name(dev), NULL);
- if (!ssi_dbg->dbg_dir)
- ssi_dbg->dbg_stats = debugfs_create_file("stats", S_IRUGO, NULL,
ssi_dbg, &fsl_ssi_stats_ops);- if (!ssi_dbg->dbg_stats) return -ENOMEM;
- ssi_dbg->dbg_stats = debugfs_create_file("stats", S_IRUGO,
ssi_dbg->dbg_dir, ssi_dbg, &fsl_ssi_stats_ops);It seems that dropping the dbg_dir and using NULL will make the stats become an orphan inside the debugfs. I am wondering if we can get the dbg_dir from the component so as to put this stats under the directory of SSIn as before.
That would be the right thing I guess. But the original code registers a top-level debugfs directory with the name of the device. Whereas the debugfs directory for the component is created in asoc/CARD_NAME/. I don't see how these two could collide? I think the patch is trying to fix the wrong thing, the issue for the collision is something else.
- Lars