diff mbox series

[v3,1/2] usb: gadget: udc: core: Revise comments for USB ep enable/disable

Message ID 1635365407-31337-2-git-send-email-quic_wcheng@quicinc.com (mailing list archive)
State Accepted
Commit b0d5d2a71641bb50cada708cc8fdca946a837e9a
Headers show
Series Disable mass storage endpoints during disconnect | expand

Commit Message

Wesley Cheng Oct. 27, 2021, 8:10 p.m. UTC 
The usb_ep_disable() and usb_ep_enable() routines are being widely
used in atomic/interrupt context by function drivers.  Hence, the
statement about it being able to only run in process context may
not be true.  Add an explicit comment mentioning that it can be used
in atomic context.

Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
 drivers/usb/gadget/udc/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c
index d626511..568534a 100644
--- a/drivers/usb/gadget/udc/core.c
+++ b/drivers/usb/gadget/udc/core.c
@@ -91,7 +91,7 @@  EXPORT_SYMBOL_GPL(usb_ep_set_maxpacket_limit);
  * configurable, with more generic names like "ep-a".  (remember that for
  * USB, "in" means "towards the USB host".)
  *
- * This routine must be called in process context.
+ * This routine may be called in an atomic (interrupt) context.
  *
  * returns zero, or a negative error code.
  */
@@ -136,7 +136,7 @@  EXPORT_SYMBOL_GPL(usb_ep_enable);
  * gadget drivers must call usb_ep_enable() again before queueing
  * requests to the endpoint.
  *
- * This routine must be called in process context.
+ * This routine may be called in an atomic (interrupt) context.
  *
  * returns zero, or a negative error code.
  */