git: 039eac2463d7 - main - linuxkpi: Add `strim()`

The branch main has been updated by dumbbell:

URL: https://cgit.FreeBSD.org/src/commit/?id=039eac2463d7b0b1b863a57c78cb2e054c210197

commit 039eac2463d7b0b1b863a57c78cb2e054c210197
Author:     Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
AuthorDate: 2025-02-24 23:30:11 +0000
Commit:     Jean-Sébastien Pédron <dumbbell@FreeBSD.org>
CommitDate: 2025-03-20 19:43:44 +0000

    linuxkpi: Add `strim()`
    
    This function trims whitespaces at the end of a string and returns a
    pointer to the first non-whitespace character.
    
    Reviewed by:    emaste
    Sponsored by:   The FreeBSD Foundation
    Differential Revision: https://reviews.freebsd.org/D49374
---
 sys/compat/linuxkpi/common/include/linux/string.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/string.h b/sys/compat/linuxkpi/common/include/linux/string.h
index 32470312b78b..f7b64560d254 100644
--- a/sys/compat/linuxkpi/common/include/linux/string.h
+++ b/sys/compat/linuxkpi/common/include/linux/string.h
@@ -161,6 +161,24 @@ skip_spaces(const char *str)
 	return (__DECONST(char *, str));
 }
 
+/*
+ * This function trims whitespaces at the end of a string and returns a pointer
+ * to the first non-whitespace character.
+ */
+static inline char *
+strim(char *str)
+{
+	char *end;
+
+	end = str + strlen(str);
+	while (end >= str && (*end == '\0' || isspace(*end))) {
+		*end = '\0';
+		end--;
+	}
+
+	return (skip_spaces(str));
+}
+
 static inline void *
 memchr_inv(const void *start, int c, size_t length)
 {