[PATCH v1 1/1] i2c: core: Make debug message even more debuggish

From: Andy Shevchenko
Date: Wed Apr 28 2021 - 11:02:11 EST


One may notice that dev_printk(KERN_DEBUG ...) is *not* an equivalent
to dev_dbg(). It will be printed whenever loglevel is high enough.
And currently it will be the only message in the I²C core in some
configurations that got printed under above conditions.

Moving to dev_dbg() will hide it in the configurations where Dynamic Debug
is enabled and hence align with all other debug messages in the I²C core..

Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/i2c/i2c-core-base.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 5a97e4a02fa2..7f711853d464 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -399,7 +399,8 @@ static int i2c_gpio_init_recovery(struct i2c_adapter *adap)
static int i2c_init_recovery(struct i2c_adapter *adap)
{
struct i2c_bus_recovery_info *bri = adap->bus_recovery_info;
- char *err_str, *err_level = KERN_ERR;
+ bool error_or_debug = true;
+ char *err_str;

if (!bri)
return 0;
@@ -409,7 +410,7 @@ static int i2c_init_recovery(struct i2c_adapter *adap)

if (!bri->recover_bus) {
err_str = "no suitable method provided";
- err_level = KERN_DEBUG;
+ error_or_debug = false;
goto err;
}

@@ -436,7 +437,10 @@ static int i2c_init_recovery(struct i2c_adapter *adap)

return 0;
err:
- dev_printk(err_level, &adap->dev, "Not using recovery: %s\n", err_str);
+ if (error_or_debug)
+ dev_err(&adap->dev, "Not using recovery: %s\n", err_str);
+ else
+ dev_dbg(&adap->dev, "Not using recovery: %s\n", err_str);
adap->bus_recovery_info = NULL;

return -EINVAL;
--
2.30.2