[PATCH] HID: core: downgrade short report warning to debug level

[Anj Duvnjak <avian@extremenerds.net>]

Commit 0a3fe972a7cb ("HID: core: Mitigate potential OOB by removing bogus
memset()") replaced the silent memset() with hid_warn_ratelimited(), which
causes dmesg flooding on devices that legitimately send short reports,
such as the APC UPS (051D:0002).

Downgrade to dbg_hid() to restore the previous behaviour of only
reporting under HID_DEBUG, while preserving the security fix of
removing the bogus memset().

Reported-by: Anj Duvnjak <avian@extremenerds.net>
Closes: https://lore.kernel.org/linux-input/MW5PR84MB135613E7947113897DD9FDA4C7272@MW5PR84MB1356.NAMPRD84.PROD.OUTLOOK.COM/
Reported-by: Oleksandr Natalenko <oleksandr@natalenko.name>
Closes: https://lore.kernel.org/linux-input/6256259.lOV4Wx5bFT@natalenko.name/
Signed-off-by: Anj Duvnjak <avian@extremenerds.net>
---
 drivers/hid/hid-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 833df14ef68f..de8a179347ec 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2057,8 +2057,8 @@ int hid_report_raw_event(struct hid_device *hid, enum hid_report_type type, u8 *
 		rsize = max_buffer_size;
 
 	if (csize < rsize) {
-		hid_warn_ratelimited(hid, "Event data for report %d was too short (%d vs %d)\n",
-				     report->id, rsize, csize);
+		dbg_hid("Event data for report %d was too short (%d vs %d)\n",
+			report->id, rsize, csize);
 		ret = -EINVAL;
 		goto out;
 	}
-- 
2.46.4