Message ID | 20240604075213.20815-2-johan+linaro@kernel.org (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | soundwire: bus: suppress probe deferral errors | expand |
On 6/4/24 02:52, Johan Hovold wrote: > Soundwire driver probe errors are currently being logged both by the bus > code and driver core: > > wsa884x-codec sdw:4:0:0217:0204:00:0: Probe of wsa884x-codec failed: -12 > wsa884x-codec sdw:4:0:0217:0204:00:0: probe with driver wsa884x-codec failed with error -12 > > Drop the redundant bus error message, which is also incorrectly being > logged on probe deferral: It's only redundant in the QCOM case... This would remove all error logs for other codecs, e.g. see rt711_sdca_sdw_probe cs35l56_sdw_probe wcd9390_probe Looks like the wsa884x-codec is the chatty driver, others are just fine with the existing code.
On Tue, Jun 04, 2024 at 10:30:21AM +0200, Pierre-Louis Bossart wrote: > On 6/4/24 02:52, Johan Hovold wrote: > > Soundwire driver probe errors are currently being logged both by the bus > > code and driver core: > > > > wsa884x-codec sdw:4:0:0217:0204:00:0: Probe of wsa884x-codec failed: -12 > > wsa884x-codec sdw:4:0:0217:0204:00:0: probe with driver wsa884x-codec failed with error -12 > > > > Drop the redundant bus error message, which is also incorrectly being > > logged on probe deferral: > > It's only redundant in the QCOM case... This would remove all error logs > for other codecs, e.g. see > > rt711_sdca_sdw_probe > cs35l56_sdw_probe > wcd9390_probe > > Looks like the wsa884x-codec is the chatty driver, others are just fine > with the existing code. I believe you misunderstood this patch. The error messages above are not printed by the wsa884x-codec driver, but by the soundwire bus code and driver core, so the redundant error message will be printed for all codecs on probe failures. And specifically, driver core will still log probe failures after this change. Johan
On 6/4/24 11:09, Johan Hovold wrote: > On Tue, Jun 04, 2024 at 10:30:21AM +0200, Pierre-Louis Bossart wrote: >> On 6/4/24 02:52, Johan Hovold wrote: >>> Soundwire driver probe errors are currently being logged both by the bus >>> code and driver core: >>> >>> wsa884x-codec sdw:4:0:0217:0204:00:0: Probe of wsa884x-codec failed: -12 >>> wsa884x-codec sdw:4:0:0217:0204:00:0: probe with driver wsa884x-codec failed with error -12 >>> >>> Drop the redundant bus error message, which is also incorrectly being >>> logged on probe deferral: >> >> It's only redundant in the QCOM case... This would remove all error logs >> for other codecs, e.g. see >> >> rt711_sdca_sdw_probe >> cs35l56_sdw_probe >> wcd9390_probe >> >> Looks like the wsa884x-codec is the chatty driver, others are just fine >> with the existing code. > > I believe you misunderstood this patch. The error messages above are not > printed by the wsa884x-codec driver, but by the soundwire bus code and > driver core, so the redundant error message will be printed for all > codecs on probe failures. > > And specifically, driver core will still log probe failures after this > change. Ah yes, you're right I read 'driver core' sideways, my bad. That's fine then.
diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c index c32faace618f..85fa5970d98a 100644 --- a/drivers/soundwire/bus_type.c +++ b/drivers/soundwire/bus_type.c @@ -83,7 +83,6 @@ static int sdw_drv_probe(struct device *dev) struct sdw_slave *slave = dev_to_sdw_dev(dev); struct sdw_driver *drv = drv_to_sdw_driver(dev->driver); const struct sdw_device_id *id; - const char *name; int ret; /* @@ -108,11 +107,6 @@ static int sdw_drv_probe(struct device *dev) ret = drv->probe(slave, id); if (ret) { - name = drv->name; - if (!name) - name = drv->driver.name; - - dev_err(dev, "Probe of %s failed: %d\n", name, ret); dev_pm_domain_detach(dev, false); return ret; }
Soundwire driver probe errors are currently being logged both by the bus code and driver core: wsa884x-codec sdw:4:0:0217:0204:00:0: Probe of wsa884x-codec failed: -12 wsa884x-codec sdw:4:0:0217:0204:00:0: probe with driver wsa884x-codec failed with error -12 Drop the redundant bus error message, which is also incorrectly being logged on probe deferral: wsa884x-codec sdw:4:0:0217:0204:00:0: Probe of wsa884x-codec failed: -517 Note that no soundwire driver uses the driver struct name field, which will be removed by a follow-on change. Signed-off-by: Johan Hovold <johan+linaro@kernel.org> --- drivers/soundwire/bus_type.c | 6 ------ 1 file changed, 6 deletions(-)