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authorNicolas Pitre <nico@cam.org>2006-02-10 13:42:05 -0500
committerJunio C Hamano <junkio@cox.net>2006-02-10 11:42:56 -0800
commit39556fbdadaacf67330bc1464e0172468e9c3a5e (patch)
treee63d2249b68742a5619937e0cab0b4c4b41bd5a6
parente7ad4a9c3c9d383d1df52410e18808174f7be667 (diff)
downloadgit-39556fbdadaacf67330bc1464e0172468e9c3a5e.tar.gz
My kernel work habit made me look at the generated assembly for the
delta code, and one obvious albeit small improvement is this patch.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
-rw-r--r--delta.h10
1 files changed, 5 insertions, 5 deletions
diff --git a/delta.h b/delta.h
index 31d1820f80..a15350dabc 100644
--- a/delta.h
+++ b/delta.h
@@ -19,14 +19,14 @@ extern void *patch_delta(void *src_buf, unsigned long src_size,
 static inline unsigned long get_delta_hdr_size(const unsigned char **datap)
 {
         const unsigned char *data = *datap;
-        unsigned char cmd = *data++;
-        unsigned long size = cmd & ~0x80;
-        int i = 7;
-        while (cmd & 0x80) {
+        unsigned char cmd;
+        unsigned long size = 0;
+        int i = 0;
+        do {
                 cmd = *data++;
                 size |= (cmd & ~0x80) << i;
                 i += 7;
-        }
+        } while (cmd & 0x80);
         *datap = data;
         return size;
 }