Hi Tvrtko,
On 2016-10-21 16:11, Tvrtko Ursulin wrote:
From: Tvrtko Ursulin <tvrtko.ursu...@intel.com> Scatterlist entries have an unsigned int for the offset so correct the sg_alloc_table_from_pages function accordingly. Since these are offsets withing a page, unsigned int is wide enough. Also converts callers which were using unsigned long locally with the lower_32_bits annotation to make it explicitly clear what is happening. Signed-off-by: Tvrtko Ursulin <tvrtko.ursu...@intel.com> Cc: Masahiro Yamada <yamada.masah...@socionext.com> Cc: Pawel Osciak <pa...@osciak.com> Cc: Marek Szyprowski <m.szyprow...@samsung.com> Cc: Kyungmin Park <kyungmin.p...@samsung.com> Cc: Tomasz Stanislawski <t.stanisl...@samsung.com> Cc: Matt Porter <mpor...@kernel.crashing.org> Cc: Alexandre Bounine <alexandre.boun...@idt.com> Cc: linux-media@vger.kernel.org Cc: linux-ker...@vger.kernel.org
Acked-by: Marek Szyprowski <m.szyprow...@samsung.com>
--- drivers/media/v4l2-core/videobuf2-dma-contig.c | 4 ++-- drivers/rapidio/devices/rio_mport_cdev.c | 4 ++-- include/linux/scatterlist.h | 2 +- lib/scatterlist.c | 2 +- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/media/v4l2-core/videobuf2-dma-contig.c b/drivers/media/v4l2-core/videobuf2-dma-contig.c index fb6a177be461..a3aac7533241 100644 --- a/drivers/media/v4l2-core/videobuf2-dma-contig.c +++ b/drivers/media/v4l2-core/videobuf2-dma-contig.c @@ -478,7 +478,7 @@ static void *vb2_dc_get_userptr(struct device *dev, unsigned long vaddr, { struct vb2_dc_buf *buf; struct frame_vector *vec; - unsigned long offset; + unsigned int offset; int n_pages, i; int ret = 0; struct sg_table *sgt; @@ -506,7 +506,7 @@ static void *vb2_dc_get_userptr(struct device *dev, unsigned long vaddr, buf->dev = dev; buf->dma_dir = dma_dir;- offset = vaddr & ~PAGE_MASK;+ offset = lower_32_bits(vaddr & ~PAGE_MASK); vec = vb2_create_framevec(vaddr, size, dma_dir == DMA_FROM_DEVICE); if (IS_ERR(vec)) { ret = PTR_ERR(vec); diff --git a/drivers/rapidio/devices/rio_mport_cdev.c b/drivers/rapidio/devices/rio_mport_cdev.c index 436dfe871d32..f545cf20561f 100644 --- a/drivers/rapidio/devices/rio_mport_cdev.c +++ b/drivers/rapidio/devices/rio_mport_cdev.c @@ -876,10 +876,10 @@ rio_dma_transfer(struct file *filp, u32 transfer_mode, * offset within the internal buffer specified by handle parameter. */ if (xfer->loc_addr) { - unsigned long offset; + unsigned int offset; long pinned;- offset = (unsigned long)(uintptr_t)xfer->loc_addr & ~PAGE_MASK;+ offset = lower_32_bits(xfer->loc_addr & ~PAGE_MASK); nr_pages = PAGE_ALIGN(xfer->length + offset) >> PAGE_SHIFT;page_list = kmalloc_array(nr_pages,diff --git a/include/linux/scatterlist.h b/include/linux/scatterlist.h index cb3c8fe6acd7..c981bee1a3ae 100644 --- a/include/linux/scatterlist.h +++ b/include/linux/scatterlist.h @@ -263,7 +263,7 @@ int __sg_alloc_table(struct sg_table *, unsigned int, unsigned int, int sg_alloc_table(struct sg_table *, unsigned int, gfp_t); int sg_alloc_table_from_pages(struct sg_table *sgt, struct page **pages, unsigned int n_pages, - unsigned long offset, unsigned long size, + unsigned int offset, unsigned long size, gfp_t gfp_mask);size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,diff --git a/lib/scatterlist.c b/lib/scatterlist.c index 004fc70fc56a..e05e7fc98892 100644 --- a/lib/scatterlist.c +++ b/lib/scatterlist.c @@ -391,7 +391,7 @@ EXPORT_SYMBOL(sg_alloc_table); */ int sg_alloc_table_from_pages(struct sg_table *sgt, struct page **pages, unsigned int n_pages, - unsigned long offset, unsigned long size, + unsigned int offset, unsigned long size, gfp_t gfp_mask) { unsigned int chunks;
Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
