4 files changed, 7 insertions, 9 deletions

diff --git a/column.c b/column.c
index 1261e18a72..fbf88639aa 100644
--- a/column.c
+++ b/column.c
@@ -23,7 +23,7 @@ struct column_data {
 /* return length of 's' in letters, ANSI escapes stripped */
 static int item_length(const char *s)
 {
-	return utf8_strnwidth(s, -1, 1);
+	return utf8_strnwidth(s, strlen(s), 1);
 }
 
 /*
diff --git a/pretty.c b/pretty.c
index 7e649b1cec..aae6e792bc 100644
--- a/pretty.c
+++ b/pretty.c
@@ -1483,7 +1483,7 @@ static size_t format_and_pad_commit(struct strbuf *sb, /* in UTF-8 */
 		int occupied;
 		if (!start)
 			start = sb->buf;
-		occupied = utf8_strnwidth(start, -1, 1);
+		occupied = utf8_strnwidth(start, strlen(start), 1);
 		occupied += c->pretty_ctx->graph_width;
 		padding = (-padding) - occupied;
 	}
@@ -1501,7 +1501,7 @@ static size_t format_and_pad_commit(struct strbuf *sb, /* in UTF-8 */
 		placeholder++;
 		total_consumed++;
 	}
-	len = utf8_strnwidth(local_sb.buf, -1, 1);
+	len = utf8_strnwidth(local_sb.buf, local_sb.len, 1);
 
 	if (c->flush_type == flush_left_and_steal) {
 		const char *ch = sb->buf + sb->len - 1;
diff --git a/utf8.c b/utf8.c
index 5b39361ada..504e517c34 100644
--- a/utf8.c
+++ b/utf8.c
@@ -206,13 +206,11 @@ int utf8_width(const char **start, size_t *remainder_p)
  * string, assuming that the string is utf8.  Returns strlen() instead
  * if the string does not look like a valid utf8 string.
  */
-int utf8_strnwidth(const char *string, int len, int skip_ansi)
+int utf8_strnwidth(const char *string, size_t len, int skip_ansi)
 {
 	int width = 0;
 	const char *orig = string;
 
-	if (len == -1)
-		len = strlen(string);
 	while (string && string < orig + len) {
 		int skip;
 		while (skip_ansi &&
@@ -225,7 +223,7 @@ int utf8_strnwidth(const char *string, int len, int skip_ansi)
 
 int utf8_strwidth(const char *string)
 {
-	return utf8_strnwidth(string, -1, 0);
+	return utf8_strnwidth(string, strlen(string), 0);
 }
 
 int is_utf8(const char *text)
@@ -791,7 +789,7 @@ int skip_utf8_bom(char **text, size_t len)
 void strbuf_utf8_align(struct strbuf *buf, align_type position, unsigned int width,
 		       const char *s)
 {
-	int slen = strlen(s);
+	size_t slen = strlen(s);
 	int display_len = utf8_strnwidth(s, slen, 0);
 	int utf8_compensation = slen - display_len;
 
diff --git a/utf8.h b/utf8.h
index fcd5167baf..6da1b6d05e 100644
--- a/utf8.h
+++ b/utf8.h
@@ -7,7 +7,7 @@ typedef unsigned int ucs_char_t;  /* assuming 32bit int */
 
 size_t display_mode_esc_sequence_len(const char *s);
 int utf8_width(const char **start, size_t *remainder_p);
-int utf8_strnwidth(const char *string, int len, int skip_ansi);
+int utf8_strnwidth(const char *string, size_t len, int skip_ansi);
 int utf8_strwidth(const char *string);
 int is_utf8(const char *text);
 int is_encoding_utf8(const char *name);