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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>, Riku Voipio <riku.voipio@iki.fi>
Subject: [Qemu-devel] [PATCH 13/16] linux-user: Use DIV_ROUND_UP
Date: Tue, 31 May 2016 18:36:02 +0200	[thread overview]
Message-ID: <1464712565-14857-14-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: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
---
 linux-user/syscall.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index df70255..96ec801 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -829,7 +829,7 @@ static inline abi_long copy_from_user_fdset(fd_set *fds,
     int i, nw, j, k;
     abi_ulong b, *target_fds;
 
-    nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
+    nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
     if (!(target_fds = lock_user(VERIFY_READ,
                                  target_fds_addr,
                                  sizeof(abi_ulong) * nw,
@@ -876,7 +876,7 @@ static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr,
     abi_long v;
     abi_ulong *target_fds;
 
-    nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS;
+    nw = DIV_ROUND_UP(n, TARGET_ABI_BITS);
     if (!(target_fds = lock_user(VERIFY_WRITE,
                                  target_fds_addr,
                                  sizeof(abi_ulong) * nw,
-- 
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 ` [Qemu-devel] [PATCH 12/16] slirp: " Laurent Vivier
2016-05-31 16:41   ` Samuel Thibault
2016-05-31 16:36 ` Laurent Vivier [this message]
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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