auto import from //depot/cupcake/@135843
diff --git a/toolbox/rmmod.c b/toolbox/rmmod.c
new file mode 100644
index 0000000..7e10c06
--- /dev/null
+++ b/toolbox/rmmod.c
@@ -0,0 +1,42 @@
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <malloc.h>
+#include <errno.h>
+#include <asm/unistd.h>
+
+extern int delete_module(const char *, unsigned int);
+
+int rmmod_main(int argc, char **argv)
+{
+ int ret;
+ char *modname, *dot;
+
+ /* make sure we've got an argument */
+ if (argc < 2) {
+ fprintf(stderr, "usage: rmmod <module>\n");
+ return -1;
+ }
+
+ /* if given /foo/bar/blah.ko, make a weak attempt
+ * to convert to "blah", just for convenience
+ */
+ modname = strrchr(argv[1], '/');
+ if (!modname)
+ modname = argv[1];
+ dot = strchr(argv[1], '.');
+ if (dot)
+ *dot = '\0';
+
+ /* pass it to the kernel */
+ ret = delete_module(modname, O_NONBLOCK | O_EXCL);
+ if (ret != 0) {
+ fprintf(stderr, "rmmod: delete_module '%s' failed (errno %d)\n",
+ modname, errno);
+ return -1;
+ }
+
+ return 0;
+}
+