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usb: Use DIV_ROUND_UP 

Replace (((n) + (d) - 1) /(d)) by DIV_ROUND_UP(n,d).

This patch is the result of coccinelle script
scripts/coccinelle/round.cocci

CC: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Laurent Vivier 2016-05-31 18:36:00 +02:00 committed by Michael Tokarev
parent df5d1c17b6
commit 66c68a12ae
1 changed files with 3 additions and 3 deletions
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6
hw/usb/redirect.c
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@ -542,9 +542,9 @@ static void usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p,
start_iso.pkts_per_urb = 32; start_iso.pkts_per_urb = 32;
} }
start_iso.no_urbs = (dev->endpoint[EP2I(ep)].bufpq_target_size + start_iso.no_urbs = DIV_ROUND_UP(
start_iso.pkts_per_urb - 1) / dev->endpoint[EP2I(ep)].bufpq_target_size,
start_iso.pkts_per_urb; start_iso.pkts_per_urb);
/* Output endpoints pre-fill only 1/2 of the packets, keeping the rest /* Output endpoints pre-fill only 1/2 of the packets, keeping the rest
as overflow buffer. Also see the usbredir protocol documentation */ as overflow buffer. Also see the usbredir protocol documentation */
if (!(ep & USB_DIR_IN)) { if (!(ep & USB_DIR_IN)) {