This is a note to let you know that I've just added the patch titled i2c: turn recovery error on init to debug to the 4.19-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: i2c-turn-recovery-error-on-init-to-debug.patch and it can be found in the queue-4.19 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From e409a6a3e0690efdef9b8a96197bc61ff117cfaf Mon Sep 17 00:00:00 2001 From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> Date: Mon, 15 Mar 2021 12:50:08 +0100 Subject: i2c: turn recovery error on init to debug From: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> commit e409a6a3e0690efdef9b8a96197bc61ff117cfaf upstream. In some configurations, recovery is optional. So, don't throw an error when it is not used because e.g. pinctrl settings for recovery are not provided. Reword the message and make it debug output. Reported-by: Klaus Kudielka <klaus.kudielka@xxxxxxxxx> Tested-by: Klaus Kudielka <klaus.kudielka@xxxxxxxxx> Signed-off-by: Wolfram Sang <wsa+renesas@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Wolfram Sang <wsa@xxxxxxxxxx> Cc: stable@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/i2c/i2c-core-base.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) --- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -262,13 +262,14 @@ EXPORT_SYMBOL_GPL(i2c_recover_bus); static void i2c_init_recovery(struct i2c_adapter *adap) { struct i2c_bus_recovery_info *bri = adap->bus_recovery_info; - char *err_str; + char *err_str, *err_level = KERN_ERR; if (!bri) return; if (!bri->recover_bus) { - err_str = "no recover_bus() found"; + err_str = "no suitable method provided"; + err_level = KERN_DEBUG; goto err; } @@ -298,7 +299,7 @@ static void i2c_init_recovery(struct i2c return; err: - dev_err(&adap->dev, "Not using recovery: %s\n", err_str); + dev_printk(err_level, &adap->dev, "Not using recovery: %s\n", err_str); adap->bus_recovery_info = NULL; } Patches currently in stable-queue which might be from wsa+renesas@xxxxxxxxxxxxxxxxxxxx are queue-4.19/i2c-turn-recovery-error-on-init-to-debug.patch