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[Qemu-devel] [PATCH 05/16] block: Use DIV_ROUND_UP


From: Laurent Vivier
Subject: [Qemu-devel] [PATCH 05/16] block: Use DIV_ROUND_UP
Date: Tue, 31 May 2016 18:35:54 +0200

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

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

CC: address@hidden
Signed-off-by: Laurent Vivier <address@hidden>
---
 block/vvfat.c      | 3 +--
 hw/block/tc58128.c | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/block/vvfat.c b/block/vvfat.c
index a39dbe6..6d2e21c 100644
--- a/block/vvfat.c
+++ b/block/vvfat.c
@@ -1960,8 +1960,7 @@ DLOG(fprintf(stderr, "check direntry %d:\n", i); 
print_direntry(direntries + i))
                /* check file size with FAT */
                cluster_count = get_cluster_count_for_direntry(s, direntries + 
i, path2);
                if (cluster_count !=
-                       (le32_to_cpu(direntries[i].size) + s->cluster_size
-                        - 1) / s->cluster_size) {
+            DIV_ROUND_UP(le32_to_cpu(direntries[i].size), s->cluster_size)) {
                    DLOG(fprintf(stderr, "Cluster count mismatch\n"));
                    goto fail;
                }
diff --git a/hw/block/tc58128.c b/hw/block/tc58128.c
index 7909d50..1d9f7ee 100644
--- a/hw/block/tc58128.c
+++ b/hw/block/tc58128.c
@@ -45,7 +45,7 @@ static void init_dev(tc58128_dev * dev, const char *filename)
             }
        } else {
            /* Build first block with number of blocks */
-           blocks = (ret + 528 * 32 - 1) / (528 * 32);
+            blocks = DIV_ROUND_UP(ret, 528 * 32);
            dev->flash_contents[0] = blocks & 0xff;
            dev->flash_contents[1] = (blocks >> 8) & 0xff;
            dev->flash_contents[2] = (blocks >> 16) & 0xff;
-- 
2.5.5




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