Merge branch 'master' of git://git.denx.de/u-boot-nand-flash

* 'master' of git://git.denx.de/u-boot-nand-flash:
  nand/fsl_elbc: Convert to self-init
  nand: Introduce CONFIG_SYS_NAND_SELF_INIT
  nand_spl: store ecc data on the stack
  mtd/nand: Add ONFI support for FSL NAND controller
  nand: make 1-bit software ECC configurable
  nand: Sanitize ONFI strings.
  nand: Merge changes to BBT from Linux nand driver
  nand: Merge changes from Linux nand driver
  nand: cleanup whitespace
  nand: Add more NAND types from Linux nand driver
  nand: Merge BCH code from Linux nand driver
  NAND: Remove additional (CONFIG_SYS)_NAND_MAX_CHIPS
  NAND: remove NAND_MAX_CHIPS definitions
  nand_spl_simple: store ecc data on the stack

1 files changed, 39 insertions, 0 deletions

diff --git a/lib/string.c b/lib/string.c
index 2c4f0ec9a..c3ad055e2 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -214,6 +214,45 @@ char * strrchr(const char * s, int c)
 }
 #endif
 
+
+/**
+ * skip_spaces - Removes leading whitespace from @str.
+ * @str: The string to be stripped.
+ *
+ * Returns a pointer to the first non-whitespace character in @str.
+ */
+char *skip_spaces(const char *str)
+{
+	while (isspace(*str))
+		++str;
+	return (char *)str;
+}
+
+/**
+ * strim - Removes leading and trailing whitespace from @s.
+ * @s: The string to be stripped.
+ *
+ * Note that the first trailing whitespace is replaced with a %NUL-terminator
+ * in the given string @s. Returns a pointer to the first non-whitespace
+ * character in @s.
+ */
+char *strim(char *s)
+{
+	size_t size;
+	char *end;
+
+	s = skip_spaces(s);
+	size = strlen(s);
+	if (!size)
+		return s;
+
+	end = s + size - 1;
+	while (end >= s && isspace(*end))
+		end--;
+	*(end + 1) = '\0';
+
+	return s;
+}
 #ifndef __HAVE_ARCH_STRLEN
 /**
  * strlen - Find the length of a string