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authorOliver Neukum <oneukum@suse.com>2025-06-12 14:20:25 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2025-08-20 18:41:03 +0200
commite2f97d909497e0cb19e2a092e78460ed20618633 (patch)
treedc1b6793f0914d02c6db0f9fe27aa1c12693513c
parent46ae288b375ff6bcb10214047092330e3027809c (diff)
usb: core: usb_submit_urb: downgrade type check
[ Upstream commit 503bbde34cc3dd2acd231f277ba70c3f9ed22e59 ] Checking for the endpoint type is no reason for a WARN, as that can cause a reboot. A driver not checking the endpoint type must not cause a reboot, as there is just no point in this. We cannot prevent a device from doing something incorrect as a reaction to a transfer. Hence warning for a mere assumption being wrong is not sensible. Signed-off-by: Oliver Neukum <oneukum@suse.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20250612122149.2559724-1-oneukum@suse.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
-rw-r--r--drivers/usb/core/urb.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index 5e52a35486af..120de3c499d2 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -500,7 +500,7 @@ int usb_submit_urb(struct urb *urb, gfp_t mem_flags)
/* Check that the pipe's type matches the endpoint's type */
if (usb_pipe_type_check(urb->dev, urb->pipe))
- dev_WARN(&dev->dev, "BOGUS urb xfer, pipe %x != type %x\n",
+ dev_warn_once(&dev->dev, "BOGUS urb xfer, pipe %x != type %x\n",
usb_pipetype(urb->pipe), pipetypes[xfertype]);
/* Check against a simple/standard policy */