From: Pádraig Brady <P@draigBrady.com>
Date: Tue, 21 Feb 2023 16:14:44 +0000 (+0000)
Subject: maint: avoid -Wmaybe-uninitialized warning from GCC13
X-Git-Tag: v9.2~54
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=afae7787f2fd5b95dabe4d908ad3b8f363d35bf1;p=thirdparty%2Fcoreutils.git

maint: avoid -Wmaybe-uninitialized warning from GCC13

* src/copy.c (infer_scantype): Always set scan_inference.ext_start,
as per commit 6c03e8fb which was inadvertently reverted by d374d32c.
---

diff --git a/src/copy.c b/src/copy.c
index 3450e90fc3..3f54bd561f 100644
--- a/src/copy.c
+++ b/src/copy.c
@@ -1052,11 +1052,13 @@ union scan_inference
 };
 
 /* Return how to scan a file with descriptor FD and stat buffer SB.
-   Set *SCAN_INFERENCE if returning LSEEK_SCANTYPE.  */
+   *SCAN_INFERENCE is set to a valid value if returning LSEEK_SCANTYPE.  */
 static enum scantype
 infer_scantype (int fd, struct stat const *sb,
                 union scan_inference *scan_inference)
 {
+  scan_inference->ext_start = -1;  /* avoid -Wmaybe-uninitialized */
+
   if (! (HAVE_STRUCT_STAT_ST_BLOCKS
          && S_ISREG (sb->st_mode)
          && ST_NBLOCKS (*sb) < sb->st_size / ST_NBLOCKSIZE))