diff options
| author |   Robert Jarzmik <robert.jarzmik@free.fr> | 2016-08-07 21:01:49 +0200 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2016-08-19 16:17:26 +0530 |
| commit | 06777c4ec78a43977b63f1d5045def057227c2c5 (patch) | |
| tree | a244326e9739d3762f181d1703645fb472064a6b /drivers/dma | |
| parent | dmaengine: pxa_dma: fix hotchain corner case (diff) | |
| download | linux-dev-06777c4ec78a43977b63f1d5045def057227c2c5.tar.xz linux-dev-06777c4ec78a43977b63f1d5045def057227c2c5.zip | |
dmaengine: pxa_dma: fix debug message
In a very tight timeframe, the debug message in the transfer completion
handler can be misleading, as the completion test report can change just
after the message, and the code flow cannot be deduced from the debug
message.
This is just a cleanup to make debugging easier.
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/pxa_dma.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/dma/pxa_dma.c b/drivers/dma/pxa_dma.c index 2093e528ae00..3f56f9ca4482 100644 --- a/drivers/dma/pxa_dma.c +++ b/drivers/dma/pxa_dma.c @@ -671,6 +671,7 @@ static irqreturn_t pxad_chan_handler(int irq, void *dev_id) struct virt_dma_desc *vd, *tmp; unsigned int dcsr; unsigned long flags; + bool vd_completed; dma_cookie_t last_started = 0; BUG_ON(!chan); @@ -681,15 +682,17 @@ static irqreturn_t pxad_chan_handler(int irq, void *dev_id) spin_lock_irqsave(&chan->vc.lock, flags); list_for_each_entry_safe(vd, tmp, &chan->vc.desc_issued, node) { + vd_completed = is_desc_completed(vd); dev_dbg(&chan->vc.chan.dev->device, - "%s(): checking txd %p[%x]: completed=%d\n", - __func__, vd, vd->tx.cookie, is_desc_completed(vd)); + "%s(): checking txd %p[%x]: completed=%d dcsr=0x%x\n", + __func__, vd, vd->tx.cookie, vd_completed, + dcsr); last_started = vd->tx.cookie; if (to_pxad_sw_desc(vd)->cyclic) { vchan_cyclic_callback(vd); break; } - if (is_desc_completed(vd)) { + if (vd_completed) { list_del(&vd->node); vchan_cookie_complete(vd); } else { |