The USB_MAXCHILDREN symbol is used in include/uapi/linux/usb/ch11.h, a
user-mode header, even though it is defined in include/linux/usb.h,
which is kernel-only. This causes compile-time errors when user
programs try to #include linux/usb/ch11.h.
This patch fixes the problem by moving the definition of USB_MAXCHILDREN
into ch11.h. It also gets rid of unneeded parentheses.
Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
---
(as1690)
include/linux/usb.h | 11 -----------
include/uapi/linux/usb/ch11.h | 11 +++++++++++
2 files changed, 11 insertions(+), 11 deletions(-)
Index: usb-3.10/include/uapi/linux/usb/ch11.h
===================================================================
--- usb-3.10.orig/include/uapi/linux/usb/ch11.h
+++ usb-3.10/include/uapi/linux/usb/ch11.h
@@ -11,6 +11,17 @@
#include <linux/types.h> /* __u8 etc */
+/* This is arbitrary.
+ * From USB 2.0 spec Table 11-13, offset 7, a hub can
+ * have up to 255 ports. The most yet reported is 10.
+ *
+ * Current Wireless USB host hardware (Intel i1480 for example) allows
+ * up to 22 devices to connect. Upcoming hardware might raise that
+ * limit. Because the arrays need to add a bit for hub status data, we
+ * use 31, so plus one evens out to four bytes.
+ */
+#define USB_MAXCHILDREN 31
+
/*
* Hub request types
*/
Index: usb-3.10/include/linux/usb.h
===================================================================
--- usb-3.10.orig/include/linux/usb.h
+++ usb-3.10/include/linux/usb.h
@@ -367,17 +367,6 @@ struct usb_bus {
/* ----------------------------------------------------------------------- */
-/* This is arbitrary.
- * From USB 2.0 spec Table 11-13, offset 7, a hub can
- * have up to 255 ports. The most yet reported is 10.
- *
- * Current Wireless USB host hardware (Intel i1480 for example) allows
- * up to 22 devices to connect. Upcoming hardware might raise that
- * limit. Because the arrays need to add a bit for hub status data, we
- * do 31, so plus one evens out to four bytes.
- */
-#define USB_MAXCHILDREN (31)
-
struct usb_tt;
enum usb_device_removable {
--
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