diff mbox series

USB: usbfs: Add a capability flag for runtime suspend

Message ID Pine.LNX.4.44L0.1908131613490.1941-100000@iolanthe.rowland.org (mailing list archive)
State Mainlined
Commit 4ed3350539aa931f58c939fcd803c7510584e143
Headers show
Series USB: usbfs: Add a capability flag for runtime suspend | expand

Commit Message

Alan Stern Aug. 13, 2019, 8:15 p.m. UTC 
The recent commit 7794f486ed0b ("usbfs: Add ioctls for runtime power
management") neglected to add a corresponding capability flag.  This
patch rectifies the omission.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Mayuresh Kulkarni <mkulkarni@opensource.cirrus.com>

---

[as1908]


 drivers/usb/core/devio.c          |    9 ++++++++-
 include/uapi/linux/usbdevice_fs.h |    1 +
 2 files changed, 9 insertions(+), 1 deletion(-)
diff mbox series

Patch

Index: usb-devel/drivers/usb/core/devio.c
===================================================================
--- usb-devel.orig/drivers/usb/core/devio.c
+++ usb-devel/drivers/usb/core/devio.c
@@ -44,6 +44,12 @@ 
 
 #include "usb.h"
 
+#ifdef CONFIG_PM
+#define MAYBE_CAP_SUSPEND	USBDEVFS_CAP_SUSPEND
+#else
+#define MAYBE_CAP_SUSPEND	0
+#endif
+
 #define USB_MAXBUS			64
 #define USB_DEVICE_MAX			(USB_MAXBUS * 128)
 #define USB_SG_SIZE			16384 /* split-size for large txs */
@@ -2312,7 +2318,8 @@  static int proc_get_capabilities(struct
 
 	caps = USBDEVFS_CAP_ZERO_PACKET | USBDEVFS_CAP_NO_PACKET_SIZE_LIM |
 			USBDEVFS_CAP_REAP_AFTER_DISCONNECT | USBDEVFS_CAP_MMAP |
-			USBDEVFS_CAP_DROP_PRIVILEGES | USBDEVFS_CAP_CONNINFO_EX;
+			USBDEVFS_CAP_DROP_PRIVILEGES |
+			USBDEVFS_CAP_CONNINFO_EX | MAYBE_CAP_SUSPEND;
 	if (!ps->dev->bus->no_stop_on_short)
 		caps |= USBDEVFS_CAP_BULK_CONTINUATION;
 	if (ps->dev->bus->sg_tablesize)
Index: usb-devel/include/uapi/linux/usbdevice_fs.h
===================================================================
--- usb-devel.orig/include/uapi/linux/usbdevice_fs.h
+++ usb-devel/include/uapi/linux/usbdevice_fs.h
@@ -158,6 +158,7 @@  struct usbdevfs_hub_portinfo {
 #define USBDEVFS_CAP_MMAP			0x20
 #define USBDEVFS_CAP_DROP_PRIVILEGES		0x40
 #define USBDEVFS_CAP_CONNINFO_EX		0x80
+#define USBDEVFS_CAP_SUSPEND			0x100
 
 /* USBDEVFS_DISCONNECT_CLAIM flags & struct */