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authorPavel Hofman <pavel.hofman@ivitera.com>2021-12-10 09:52:19 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2021-12-12 13:06:39 +0100
commitca5737396927afd4d57b133fd2874bbcf3421cdb (patch)
tree0eea2fce2f9cfec5b88463f29036ca4ce2008354
parent1a3910c80966e4a76b25ce812f6bea0ef1b1d530 (diff)
usb: core: config: using bit mask instead of individual bits
Using standard USB_EP_MAXP_MULT_MASK instead of individual bits for extracting multiple-transactions bits from wMaxPacketSize value. Acked-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Pavel Hofman <pavel.hofman@ivitera.com> Link: https://lore.kernel.org/r/20211210085219.16796-2-pavel.hofman@ivitera.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/usb/core/config.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
index e3c3a73e1ed8..48bc8a4814ac 100644
--- a/drivers/usb/core/config.c
+++ b/drivers/usb/core/config.c
@@ -422,9 +422,9 @@ static int usb_parse_endpoint(struct device *ddev, int cfgno,
maxpacket_maxes = full_speed_maxpacket_maxes;
break;
case USB_SPEED_HIGH:
- /* Bits 12..11 are allowed only for HS periodic endpoints */
+ /* Multiple-transactions bits are allowed only for HS periodic endpoints */
if (usb_endpoint_xfer_int(d) || usb_endpoint_xfer_isoc(d)) {
- i = maxp & (BIT(12) | BIT(11));
+ i = maxp & USB_EP_MAXP_MULT_MASK;
maxp &= ~i;
}
fallthrough;