From: Laurent Vivier <lvivier@redhat.com>
Date: Tue, 31 May 2016 16:36:00 +0000 (+0200)
Subject: usb: Use DIV_ROUND_UP
X-Git-Tag: qemu-xen-4.8.0-rc1~227^2~4
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=66c68a12ae688d16c4037cbe730109108edaf84c;p=qemu-xen.git

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>
---

diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
index 8d8054037f..8ec8484349 100644
--- a/hw/usb/redirect.c
+++ b/hw/usb/redirect.c
@@ -542,9 +542,9 @@ static void usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p,
             start_iso.pkts_per_urb = 32;
         }
 
-        start_iso.no_urbs = (dev->endpoint[EP2I(ep)].bufpq_target_size +
-                             start_iso.pkts_per_urb - 1) /
-                            start_iso.pkts_per_urb;
+        start_iso.no_urbs = DIV_ROUND_UP(
+                                     dev->endpoint[EP2I(ep)].bufpq_target_size,
+                                     start_iso.pkts_per_urb);
         /* Output endpoints pre-fill only 1/2 of the packets, keeping the rest
            as overflow buffer. Also see the usbredir protocol documentation */
         if (!(ep & USB_DIR_IN)) {