lkml.org 
[lkml]   [2017]   [Oct]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] xhci: Convert timers to use timer_setup()
In preparation for unconditionally passing the struct timer_list pointer to
all timer callbacks, switch to using the new timer_setup() and from_timer()
to pass the timer pointer explicitly.

Cc: Mathias Nyman <mathias.nyman@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
---
drivers/usb/host/xhci-mem.c | 4 ++--
drivers/usb/host/xhci-ring.c | 9 +++------
drivers/usb/host/xhci.h | 2 +-
3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index b81a2317420b..795219a397d3 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -800,8 +800,8 @@ void xhci_free_stream_info(struct xhci_hcd *xhci,
static void xhci_init_endpoint_timer(struct xhci_hcd *xhci,
struct xhci_virt_ep *ep)
{
- setup_timer(&ep->stop_cmd_timer, xhci_stop_endpoint_command_watchdog,
- (unsigned long)ep);
+ timer_setup(&ep->stop_cmd_timer, xhci_stop_endpoint_command_watchdog,
+ 0);
ep->xhci = xhci;
}

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 4764121ba2b1..e35eed16c842 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -947,15 +947,12 @@ void xhci_hc_died(struct xhci_hcd *xhci)
* Instead we use a combination of that flag and checking if a new timer is
* pending.
*/
-void xhci_stop_endpoint_command_watchdog(unsigned long arg)
+void xhci_stop_endpoint_command_watchdog(struct timer_list *t)
{
- struct xhci_hcd *xhci;
- struct xhci_virt_ep *ep;
+ struct xhci_virt_ep *ep = from_timer(ep, t, stop_cmd_timer);
+ struct xhci_hcd *xhci = ep->xhci;
unsigned long flags;

- ep = (struct xhci_virt_ep *) arg;
- xhci = ep->xhci;
-
spin_lock_irqsave(&xhci->lock, flags);

/* bail out if cmd completed but raced with stop ep watchdog timer.*/
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index b966cd878351..86df906aec46 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -2076,7 +2076,7 @@ void xhci_queue_new_dequeue_state(struct xhci_hcd *xhci,
struct xhci_dequeue_state *deq_state);
void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, unsigned int ep_index,
unsigned int stream_id, struct xhci_td *td);
-void xhci_stop_endpoint_command_watchdog(unsigned long arg);
+void xhci_stop_endpoint_command_watchdog(struct timer_list *t);
void xhci_handle_command_timeout(struct work_struct *work);

void xhci_ring_ep_doorbell(struct xhci_hcd *xhci, unsigned int slot_id,
--
2.7.4

--
Kees Cook
Pixel Security

\
 
 \ /
  Last update: 2017-10-17 01:17    [W:0.716 / U:0.376 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site