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usb/usbip: Fix v_recv_cmd_submit() to use PIPE_BULK define

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Fix v_recv_cmd_submit() to use PIPE_BULK define instead of hard coded
values. This also fixes the following signed integer overflow error
reported by cppcheck. This is not an issue since pipe is unsigned int.
However, this change improves the code to use proper define.

drivers/usb/usbip/vudc_rx.c:152:26: error: Signed integer overflow for expression '3<<30'. [integerOverflow]
 urb_p->urb->pipe &= ~(3 << 30);

In addition, add a build time check for PIPE_BULK != 3 as the code path
depends on PIPE_BULK = 3.

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/20221110194738.38514-1-skhan@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Shuah Khan 2022-11-10 12:47:38 -07:00 committed by Greg Kroah-Hartman
parent 8836402d4b
commit dd65a243a9
1 changed files with 3 additions and 1 deletions
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4
drivers/usb/usbip/vudc_rx.c
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@ -149,7 +149,9 @@ static int v_recv_cmd_submit(struct vudc *udc,
urb_p->urb->status = -EINPROGRESS;
/* FIXME: more pipe setup to please usbip_common */
urb_p->urb->pipe &= ~(3 << 30);
BUILD_BUG_ON_MSG(PIPE_BULK != 3, "PIPE_* doesn't range from 0 to 3");
urb_p->urb->pipe &= ~(PIPE_BULK << 30);
switch (urb_p->ep->type) {
case USB_ENDPOINT_XFER_BULK:
urb_p->urb->pipe |= (PIPE_BULK << 30);