| Message ID | 20240507-cocci-flexarray-v2-2-7aea262cf065@chromium.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | media: Fix the last set of coccinelle warnings | expand |
Hi Ricardo, Thank you for the patch. On Tue, May 07, 2024 at 04:27:07PM +0000, Ricardo Ribalda wrote: > Replace a single element array with a single field. > > The following cocci warning is fixed: > drivers/media/platform/xilinx/xilinx-dma.h:100:19-22: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) This is a false positive, as I really meant ab array with a single element, this isn't a VLA. I think the current code is a bit clearer, but I don't think this patch is such a regression in terms of readability that I'll argue for the driver to remain the last coccinelle warning :-) Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> > Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> > --- > drivers/media/platform/xilinx/xilinx-dma.c | 4 ++-- > drivers/media/platform/xilinx/xilinx-dma.h | 2 +- > 2 files changed, 3 insertions(+), 3 deletions(-) > > diff --git a/drivers/media/platform/xilinx/xilinx-dma.c b/drivers/media/platform/xilinx/xilinx-dma.c > index a96de5d388a1..a1687b868a44 100644 > --- a/drivers/media/platform/xilinx/xilinx-dma.c > +++ b/drivers/media/platform/xilinx/xilinx-dma.c > @@ -348,8 +348,8 @@ static void xvip_dma_buffer_queue(struct vb2_buffer *vb) > } > > dma->xt.frame_size = 1; > - dma->sgl[0].size = dma->format.width * dma->fmtinfo->bpp; > - dma->sgl[0].icg = dma->format.bytesperline - dma->sgl[0].size; > + dma->sgl.size = dma->format.width * dma->fmtinfo->bpp; > + dma->sgl.icg = dma->format.bytesperline - dma->sgl.size; > dma->xt.numf = dma->format.height; > > desc = dmaengine_prep_interleaved_dma(dma->dma, &dma->xt, flags); > diff --git a/drivers/media/platform/xilinx/xilinx-dma.h b/drivers/media/platform/xilinx/xilinx-dma.h > index 9c6d4c18d1a9..18f77e1a7b39 100644 > --- a/drivers/media/platform/xilinx/xilinx-dma.h > +++ b/drivers/media/platform/xilinx/xilinx-dma.h > @@ -97,7 +97,7 @@ struct xvip_dma { > struct dma_chan *dma; > unsigned int align; > struct dma_interleaved_template xt; > - struct data_chunk sgl[1]; > + struct data_chunk sgl; > }; > > #define to_xvip_dma(vdev) container_of(vdev, struct xvip_dma, video)
diff --git a/drivers/media/platform/xilinx/xilinx-dma.c b/drivers/media/platform/xilinx/xilinx-dma.c index a96de5d388a1..a1687b868a44 100644 --- a/drivers/media/platform/xilinx/xilinx-dma.c +++ b/drivers/media/platform/xilinx/xilinx-dma.c @@ -348,8 +348,8 @@ static void xvip_dma_buffer_queue(struct vb2_buffer *vb) } dma->xt.frame_size = 1; - dma->sgl[0].size = dma->format.width * dma->fmtinfo->bpp; - dma->sgl[0].icg = dma->format.bytesperline - dma->sgl[0].size; + dma->sgl.size = dma->format.width * dma->fmtinfo->bpp; + dma->sgl.icg = dma->format.bytesperline - dma->sgl.size; dma->xt.numf = dma->format.height; desc = dmaengine_prep_interleaved_dma(dma->dma, &dma->xt, flags); diff --git a/drivers/media/platform/xilinx/xilinx-dma.h b/drivers/media/platform/xilinx/xilinx-dma.h index 9c6d4c18d1a9..18f77e1a7b39 100644 --- a/drivers/media/platform/xilinx/xilinx-dma.h +++ b/drivers/media/platform/xilinx/xilinx-dma.h @@ -97,7 +97,7 @@ struct xvip_dma { struct dma_chan *dma; unsigned int align; struct dma_interleaved_template xt; - struct data_chunk sgl[1]; + struct data_chunk sgl; }; #define to_xvip_dma(vdev) container_of(vdev, struct xvip_dma, video)
Replace a single element array with a single field. The following cocci warning is fixed: drivers/media/platform/xilinx/xilinx-dma.h:100:19-22: WARNING use flexible-array member instead (https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays) Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> --- drivers/media/platform/xilinx/xilinx-dma.c | 4 ++-- drivers/media/platform/xilinx/xilinx-dma.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-)