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From: Laurent Vivier <lvivier@redhat.com>
To: qemu-trivial@nongnu.org, qemu-devel@nongnu.org
Cc: Laurent Vivier <lvivier@redhat.com>,
	Samuel Thibault <samuel.thibault@ens-lyon.org>
Subject: [Qemu-devel] [PATCH 12/16] slirp: Use DIV_ROUND_UP
Date: Tue, 31 May 2016 18:36:01 +0200	[thread overview]
Message-ID: <1464712565-14857-13-git-send-email-lvivier@redhat.com> (raw)
In-Reply-To: <1464712565-14857-1-git-send-email-lvivier@redhat.com>

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

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

CC: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
---
 slirp/dnssearch.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/slirp/dnssearch.c b/slirp/dnssearch.c
index aed2f13..9b16757 100644
--- a/slirp/dnssearch.c
+++ b/slirp/dnssearch.c
@@ -262,7 +262,7 @@ int translate_dnssearch(Slirp *s, const char **names)
     }
 
     /* reserve extra 2 header bytes for each 255 bytes of output */
-    memreq += ((memreq + MAX_OPT_LEN - 1) / MAX_OPT_LEN) * OPT_HEADER_LEN;
+    memreq += DIV_ROUND_UP(memreq, MAX_OPT_LEN) * OPT_HEADER_LEN;
     result = g_malloc(memreq * sizeof(*result));
 
     outptr = result;
@@ -289,7 +289,7 @@ int translate_dnssearch(Slirp *s, const char **names)
     domain_mkxrefs(domains, domains + num_domains - 1, 0);
     memreq = domain_compactify(domains, num_domains);
 
-    blocks = (memreq + MAX_OPT_LEN - 1) / MAX_OPT_LEN;
+    blocks = DIV_ROUND_UP(memreq, MAX_OPT_LEN);
     bsrc_end = memreq;
     bsrc_start = (blocks - 1) * MAX_OPT_LEN;
     bdst_start = bsrc_start + blocks * OPT_HEADER_LEN;
-- 
2.5.5

  parent reply	other threads:[~2016-05-31 16:37 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-31 16:35 [Qemu-devel] [PATCH 00/16] use macro DIV_ROUND_UP instead of (((n) + (d) - 1) /(d)) Laurent Vivier
2016-05-31 16:35 ` [Qemu-devel] [PATCH 01/16] coccinelle: " Laurent Vivier
2016-05-31 17:12   ` Eric Blake
2016-05-31 17:24     ` Laurent Vivier
2016-05-31 16:35 ` [Qemu-devel] [PATCH 02/16] parallels: Use DIV_ROUND_UP Laurent Vivier
2016-05-31 17:18   ` Eric Blake
2016-05-31 16:35 ` [Qemu-devel] [PATCH 03/16] qcow/qcow2: " Laurent Vivier
2016-05-31 17:20   ` Eric Blake
2016-05-31 16:35 ` [Qemu-devel] [PATCH 04/16] qed: " Laurent Vivier
2016-05-31 17:49   ` Eric Blake
2016-05-31 16:35 ` [Qemu-devel] [PATCH 05/16] block: " Laurent Vivier
2016-05-31 17:50   ` Eric Blake
2016-05-31 16:35 ` [Qemu-devel] [PATCH 06/16] crypto: " Laurent Vivier
2016-05-31 16:45   ` Daniel P. Berrange
2016-05-31 16:35 ` [Qemu-devel] [PATCH 07/16] xen: " Laurent Vivier
2016-06-01  9:33   ` Stefano Stabellini
2016-05-31 16:35 ` [Qemu-devel] [PATCH 08/16] audio: " Laurent Vivier
2016-05-31 16:35 ` [Qemu-devel] [PATCH 09/16] SPICE: " Laurent Vivier
2016-05-31 16:35 ` [Qemu-devel] [PATCH 10/16] rocker: " Laurent Vivier
2016-05-31 16:36 ` [Qemu-devel] [PATCH 11/16] usb: " Laurent Vivier
2016-05-31 16:36 ` Laurent Vivier [this message]
2016-05-31 16:41   ` [Qemu-devel] [PATCH 12/16] slirp: " Samuel Thibault
2016-05-31 16:36 ` [Qemu-devel] [PATCH 13/16] linux-user: " Laurent Vivier
2016-05-31 16:36 ` [Qemu-devel] [PATCH 14/16] pc-bios/s390-ccw: " Laurent Vivier
2016-05-31 16:36 ` [Qemu-devel] [PATCH 15/16] qemu-timer: " Laurent Vivier
2016-05-31 16:36 ` [Qemu-devel] [PATCH 16/16] hbitmap: " Laurent Vivier
2016-06-03 18:17   ` John Snow
2016-06-05  7:16 ` [Qemu-devel] [PATCH 00/16] use macro DIV_ROUND_UP instead of (((n) + (d) - 1) /(d)) Michael Tokarev

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