Hi,
On 08/12/2014 08:08 AM, Sanjeev Sharma wrote:
> 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_sha...@mentor.com>
> ---
> Changes in v2:
> - replaced WARN_ON_ONCE() with lockdep_assert_held() to
> avoid runtime overhead instead of assert_spin_locked()
Thanks!
Acked-by: Hans de Goede <hdego...@redhat.com>
Regards,
Hans
>
> 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)
>
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
