Note this cast was fixed in grub_strcasecmp() in commit ce41ab7aab (* grub-core/kern/misc.c (grub_strcmp): Use unsigned comparison as per common usage and preffered in several parts of code.), but this commit omitted fixing it in grub_strncasecmp(). Signed-off-by: Glenn Washburn <development@efficientek.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>