[PATCH 01/21] uas: replace WARN_ON_ONCE() with lockdep_assert_held()

Hans de Goede
2014-09-10T11:46:31Z

From: Sanjeev Sharma <Sanjeev_Sharma-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org>

On some architecture spin_is_locked() always return false in
uniprocessor configuration and therefore it would be advise to replace
with lockdep_assert_held().

Signed-off-by: Sanjeev Sharma <Sanjeev_Sharma-nmGgyN9QBj3QT0dZR+AlfA@public.gmane.org>
Signed-off-by: Hans de Goede <hdegoede-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
---
drivers/usb/storage/uas.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c
index 3f42785..05b2d8e 100644
--- a/drivers/usb/storage/uas.c
+++ b/drivers/usb/storage/uas.c
@@ -154,7 +154,7 @@ static void uas_mark_cmd_dead(struct uas_dev_info *devinfo,
struct scsi_cmnd *cmnd = container_of(scp, struct scsi_cmnd, SCp);

uas_log_cmd_state(cmnd, caller);
- WARN_ON_ONCE(!spin_is_locked(&devinfo->lock));
+ lockdep_assert_held(&devinfo->lock);
WARN_ON_ONCE(cmdinfo->state & COMMAND_ABORTED);
cmdinfo->state |= COMMAND_ABORTED;
cmdinfo->state &= ~IS_IN_WORK_LIST;
@@ -181,7 +181,7 @@ static void uas_add_work(struct uas_cmd_info *cmdinfo)
struct scsi_cmnd *cmnd = container_of(scp, struct scsi_cmnd, SCp);
struct uas_dev_info *devinfo = cmnd->device->hostdata;

- WARN_ON_ONCE(!spin_is_locked(&devinfo->lock));
+ lockdep_assert_held(&devinfo->lock);
cmdinfo->state |= IS_IN_WORK_LIST;
schedule_work(&devinfo->work);
}
@@ -283,7 +283,7 @@ static int uas_try_complete(struct scsi_cmnd *cmnd, const char *caller)
struct uas_cmd_info *cmdinfo = (void *)&cmnd->SCp;
struct uas_dev_info *devinfo = (void *)cmnd->device->hostdata;

- WARN_ON_ONCE(!spin_is_locked(&devinfo->lock));
+ lockdep_assert_held(&devinfo->lock);
if (cmdinfo->state & (COMMAND_INFLIGHT |
DATA_IN_URB_INFLIGHT |
DATA_OUT_URB_INFLIGHT |
@@ -622,7 +622,7 @@ static int uas_submit_urbs(struct scsi_cmnd *cmnd,
struct urb *urb;
int err;

- WARN_ON_ONCE(!spin_is_locked(&devinfo->lock));
+ lockdep_assert_held(&devinfo->lock);
if (cmdinfo->state & SUBMIT_STATUS_URB) {
urb = uas_submit_sense_urb(cmnd, gfp, cmdinfo->stream);
if (!urb)
--
2.1.0

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