From: Jim Meyering <meyering@fb.com>
Date: Thu, 23 Jun 2022 14:33:08 +0000 (-0700)
Subject: cp: avoid -Wmaybe-uninitialized warning from GCC13
X-Git-Tag: v9.2~180
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c03e8fbb25d52b5fda62a95090568f0ba5fca70;p=thirdparty%2Fcoreutils.git

cp: avoid -Wmaybe-uninitialized warning from GCC13

* src/copy.c (infer_scantype): Always set scan_inference.ext_start,
to make the code match the comment.
---

diff --git a/src/copy.c b/src/copy.c
index edc8221343..0c368d0e4e 100644
--- a/src/copy.c
+++ b/src/copy.c
@@ -1045,7 +1045,10 @@ infer_scantype (int fd, struct stat const *sb,
   if (! (HAVE_STRUCT_STAT_ST_BLOCKS
          && S_ISREG (sb->st_mode)
          && ST_NBLOCKS (*sb) < sb->st_size / ST_NBLOCKSIZE))
-    return PLAIN_SCANTYPE;
+    {
+      scan_inference->ext_start = -1;
+      return PLAIN_SCANTYPE;
+    }
 
 #ifdef SEEK_HOLE
   scan_inference->ext_start = lseek (fd, 0, SEEK_DATA);
@@ -1053,6 +1056,8 @@ infer_scantype (int fd, struct stat const *sb,
     return LSEEK_SCANTYPE;
   else if (errno != EINVAL && !is_ENOTSUP (errno))
     return ERROR_SCANTYPE;
+#else
+  scan_inference->ext_start = -1;
 #endif
 
   return ZERO_SCANTYPE;