USB 2.1 Link PM adds to use bits[1:15] according to USB 2.0 ECN Errata for
Link Power Management spec.
Bit Encoding
0 Reserved
1 LPM
2 BESL & Altemate HIRD definitions supported
3 Recommended Baseline BESL valid
4 Recommended Deep BESL valid
11:8 Recommended Baseline BESL value
15:12 Recommended Deep BESL value
31:16 Reserved
So fix the bit mask from 0x1e to 0xfffe.
Reported-by: Sarah Sharp <sarah.a.sharp@xxxxxxxxxxxxxxx>
Signed-off-by: Huang Rui <ray.huang@xxxxxxx>
---
drivers/usb/misc/usbtest.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 5ef202b..c6b0f61 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -655,8 +655,8 @@ static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
}
attr = le32_to_cpu(ext->bmAttributes);
- /* bits[1:4] is used and others are reserved */
- if (attr & ~0x1e) { /* reserved == 0 */
+ /* bits[1:15] is used and others are reserved */
+ if (attr & ~0xfffe) { /* reserved == 0 */
ERROR(tdev, "reserved bits set\n");
return 0;
}
--
1.7.11.7
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