| Message ID | 20241007150852.2183722-2-andriy.shevchenko@linux.intel.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | dmaengine: dma_request_chan*() amendments | expand |
On Mon, Oct 07, 2024 at 06:06:45PM +0300, Andy Shevchenko wrote: > Replace dma_request_slave_channel() by dma_request_chan() as suggested > since the former is deprecated. > > Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > --- > drivers/dma/imx-sdma.c | 5 ++--- > include/linux/dmaengine.h | 4 ++-- > 2 files changed, 4 insertions(+), 5 deletions(-) > > diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c > index 72299a08af44..3a769934c984 100644 > --- a/drivers/dma/imx-sdma.c > +++ b/drivers/dma/imx-sdma.c > @@ -1459,9 +1459,8 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan) > * dmatest, thus create 'struct imx_dma_data mem_data' for this case. > * Please note in any other slave case, you have to setup chan->private > * with 'struct imx_dma_data' in your own filter function if you want to > - * request dma channel by dma_request_channel() rather than > - * dma_request_slave_channel(). Othwise, 'MEMCPY in case?' will appear > - * to warn you to correct your filter function. > + * request DMA channel by dma_request_channel(), otherwise, 'MEMCPY in > + * case?' will appear to warn you to correct your filter function. It just change comments, why combined with dmaengine.h change. Frank > */ > if (!data) { > dev_dbg(sdmac->sdma->dev, "MEMCPY in case?\n"); > diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h > index b137fdb56093..b4e6de892d34 100644 > --- a/include/linux/dmaengine.h > +++ b/include/linux/dmaengine.h > @@ -1632,8 +1632,8 @@ static inline struct dma_chan > { > struct dma_chan *chan; > > - chan = dma_request_slave_channel(dev, name); > - if (chan) > + chan = dma_request_chan(dev, name); > + if (!IS_ERR(chan)) > return chan; > > if (!fn || !fn_param) > -- > 2.43.0.rc1.1336.g36b5255a03ac >
On Mon, Oct 07, 2024 at 11:52:21AM -0400, Frank Li wrote: > On Mon, Oct 07, 2024 at 06:06:45PM +0300, Andy Shevchenko wrote: ... > > * Please note in any other slave case, you have to setup chan->private > > * with 'struct imx_dma_data' in your own filter function if you want to > > - * request dma channel by dma_request_channel() rather than > > - * dma_request_slave_channel(). Othwise, 'MEMCPY in case?' will appear > > - * to warn you to correct your filter function. > > + * request DMA channel by dma_request_channel(), otherwise, 'MEMCPY in > > + * case?' will appear to warn you to correct your filter function. > > It just change comments, why combined with dmaengine.h change. Because this comment is related to what is done below. ... > > struct dma_chan *chan; > > > > - chan = dma_request_slave_channel(dev, name); > > - if (chan) > > + chan = dma_request_chan(dev, name); Here is no more dma_request_slave_channel() calls as in the mentioned comment. > > + if (!IS_ERR(chan)) > > return chan;
diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 72299a08af44..3a769934c984 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -1459,9 +1459,8 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan) * dmatest, thus create 'struct imx_dma_data mem_data' for this case. * Please note in any other slave case, you have to setup chan->private * with 'struct imx_dma_data' in your own filter function if you want to - * request dma channel by dma_request_channel() rather than - * dma_request_slave_channel(). Othwise, 'MEMCPY in case?' will appear - * to warn you to correct your filter function. + * request DMA channel by dma_request_channel(), otherwise, 'MEMCPY in + * case?' will appear to warn you to correct your filter function. */ if (!data) { dev_dbg(sdmac->sdma->dev, "MEMCPY in case?\n"); diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h index b137fdb56093..b4e6de892d34 100644 --- a/include/linux/dmaengine.h +++ b/include/linux/dmaengine.h @@ -1632,8 +1632,8 @@ static inline struct dma_chan { struct dma_chan *chan; - chan = dma_request_slave_channel(dev, name); - if (chan) + chan = dma_request_chan(dev, name); + if (!IS_ERR(chan)) return chan; if (!fn || !fn_param)
Replace dma_request_slave_channel() by dma_request_chan() as suggested since the former is deprecated. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> --- drivers/dma/imx-sdma.c | 5 ++--- include/linux/dmaengine.h | 4 ++-- 2 files changed, 4 insertions(+), 5 deletions(-)