diff options
| author | Su Hui <suhui@nfschina.com> | 2025-07-25 14:01:18 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-08-20 18:30:21 +0200 |
| commit | 83fc5d72572928d0a135f873320c7262e72d9eed (patch) | |
| tree | 595b0102d568bec692595370e6dfce2aac83a0cd | |
| parent | c51db71fc143a5e0014219deda9cad05c4352e7f (diff) | |
usb: xhci: print xhci->xhc_state when queue_command failed
[ Upstream commit 7919407eca2ef562fa6c98c41cfdf6f6cdd69d92 ]
When encounters some errors like these:
xhci_hcd 0000:4a:00.2: xHCI dying or halted, can't queue_command
xhci_hcd 0000:4a:00.2: FIXME: allocate a command ring segment
usb usb5-port6: couldn't allocate usb_device
It's hard to know whether xhc_state is dying or halted. So it's better
to print xhc_state's value which can help locate the resaon of the bug.
Signed-off-by: Su Hui <suhui@nfschina.com>
Link: https://lore.kernel.org/r/20250725060117.1773770-1-suhui@nfschina.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/usb/host/xhci-ring.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 2ff8787f753c..19978f02bb9e 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -4378,7 +4378,8 @@ static int queue_command(struct xhci_hcd *xhci, struct xhci_command *cmd, if ((xhci->xhc_state & XHCI_STATE_DYING) || (xhci->xhc_state & XHCI_STATE_HALTED)) { - xhci_dbg(xhci, "xHCI dying or halted, can't queue_command\n"); + xhci_dbg(xhci, "xHCI dying or halted, can't queue_command. state: 0x%x\n", + xhci->xhc_state); return -ESHUTDOWN; } |