> -----Original Message----- > From: Vinod Koul <vkoul@xxxxxxxxxx> > Sent: Sunday, November 11, 2018 2:30 AM > To: Radhey Shyam Pandey <radheys@xxxxxxxxxx> > Cc: dan.j.williams@xxxxxxxxx; Michal Simek <michals@xxxxxxxxxx>; Appana > Durga Kedareswara Rao <appanad@xxxxxxxxxx>; dmaengine@xxxxxxxxxxxxxxx; > linux-arm-kernel@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx > Subject: Re: [PATCH v2 2/4] dmaengine: xilinx_dma: Refactor axidma channel > validation > > On 29-09-18, 11:17, Radhey Shyam Pandey wrote: > > In axidma start_transfer, prefer checking channel states before > > other params i.e pending_list. No functional change. > > There needs to be proper reason rather than a preference, can you > explain why Initially, I thought to group channel states check before checking pending_list. It came up in doing diff with xilinx tree and mainline tree. But agree it's not of significant importance and can be dropped. > > > > > Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xxxxxxxxxx> > > --- > > Changes for v2: > > Modified the commit message to mark it as non-functional change. > > --- > > drivers/dma/xilinx/xilinx_dma.c | 4 ++-- > > 1 files changed, 2 insertions(+), 2 deletions(-) > > > > diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c > > index 06d1632..a37871e 100644 > > --- a/drivers/dma/xilinx/xilinx_dma.c > > +++ b/drivers/dma/xilinx/xilinx_dma.c > > @@ -1271,10 +1271,10 @@ static void xilinx_dma_start_transfer(struct > xilinx_dma_chan *chan) > > if (chan->err) > > return; > > > > - if (list_empty(&chan->pending_list)) > > + if (!chan->idle) > > return; > > > > - if (!chan->idle) > > + if (list_empty(&chan->pending_list)) > > return; > > > > head_desc = list_first_entry(&chan->pending_list, > > -- > > 1.7.1 > > -- > ~Vinod
