linux-kernel - [RFC PATCH] USB:XHCI:Adjust the log level of hub

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Date:   Thu, 25 Mar 2021 18:04:12 +0800
From:   Longfang Liu <liulongfang@...wei.com>
To:     <gregkh@...uxfoundation.org>, <mathias.nyman@...el.com>,
        <stern@...land.harvard.edu>
CC:     <linux-usb@...r.kernel.org>, <yisen.zhuang@...wei.com>,
        <tanxiaofei@...wei.com>, <liudongdong3@...wei.com>,
        <liulongfang@...wei.com>, <linux-kernel@...r.kernel.org>
Subject: [RFC PATCH] USB:XHCI:Adjust the log level of hub

When the number of ports of the hub is not between 1 and Maxports,
it will only exit the registration of the hub on the current controller,
but it will not affect the function of the controller itself. Its other
hubs can operate normally, so the log level here can be changed from
error to information.

Signed-off-by: Longfang Liu <liulongfang@...wei.com>
---
 drivers/usb/core/hub.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index b1e14be..70294ad 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1409,13 +1409,11 @@ static int hub_configure(struct usb_hub *hub,
 		maxchild = min_t(unsigned, maxchild, USB_SS_MAXPORTS);
 
 	if (hub->descriptor->bNbrPorts > maxchild) {
-		message = "hub has too many ports!";
-		ret = -ENODEV;
-		goto fail;
+		dev_info(hub_dev, "hub has too many ports!\n");
+		return -ENODEV;
 	} else if (hub->descriptor->bNbrPorts == 0) {
-		message = "hub doesn't have any ports!";
-		ret = -ENODEV;
-		goto fail;
+		dev_info(hub_dev, "hub doesn't have any ports!\n");
+		return -ENODEV;
 	}
 
 	/*
-- 
2.8.1