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usb-hub: use DIV_ROUND_UP

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I used the clang-tidy qemu-round check to generate the fix:
https://github.com/elmarco/clang-tools-extra

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Marc-André Lureau 2017-06-22 13:04:16 +02:00
parent fa141081b9
commit 54ac85ef0d
1 changed files with 4 additions and 4 deletions
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8
hw/usb/dev-hub.c
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@ -109,7 +109,7 @@ static const USBDescIface desc_iface_hub = {
{
.bEndpointAddress = USB_DIR_IN | 0x01,
.bmAttributes = USB_ENDPOINT_XFER_INT,
.wMaxPacketSize = 1 + (NUM_PORTS + 7) / 8,
.wMaxPacketSize = 1 + DIV_ROUND_UP(NUM_PORTS, 8),
.bInterval = 0xff,
},
}
@ -442,14 +442,14 @@ static void usb_hub_handle_control(USBDevice *dev, USBPacket *p,
data[2] = NUM_PORTS;
/* fill DeviceRemovable bits */
limit = ((NUM_PORTS + 1 + 7) / 8) + 7;
limit = DIV_ROUND_UP(NUM_PORTS + 1, 8) + 7;
for (n = 7; n < limit; n++) {
data[n] = 0x00;
var_hub_size++;
}
/* fill PortPwrCtrlMask bits */
limit = limit + ((NUM_PORTS + 7) / 8);
limit = limit + DIV_ROUND_UP(NUM_PORTS, 8);
for (;n < limit; n++) {
data[n] = 0xff;
var_hub_size++;
@ -477,7 +477,7 @@ static void usb_hub_handle_data(USBDevice *dev, USBPacket *p)
unsigned int status;
uint8_t buf[4];
int i, n;
n = (NUM_PORTS + 1 + 7) / 8;
n = DIV_ROUND_UP(NUM_PORTS + 1, 8);
if (p->iov.size == 1) { /* FreeBSD workaround */
n = 1;
} else if (n > p->iov.size) {