usb gadget: link fixes for storage gadget
Change how the file storage gadget driver builds: don't
use separate compilation, since it works poorly when key
parts are library code (with init sections etc). Instead
be as close as we can to "gcc --combine ...".
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index ea2c31d..0c632d2 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -245,6 +245,18 @@
#include "gadget_chips.h"
+
+/*
+ * Kbuild is not very cooperative with respect to linking separately
+ * compiled library objects into one module. So for now we won't use
+ * separate compilation ... ensuring init/exit sections work to shrink
+ * the runtime footprint, and giving us at least some parts of what
+ * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
+ */
+#include "usbstring.c"
+#include "config.c"
+#include "epautoconf.c"
+
/*-------------------------------------------------------------------------*/
#define DRIVER_DESC "File-backed Storage Gadget"