[PATCH v1 9/9] dma-mapping: remove unused map_page callback
Sam Ravnborg
sam at ravnborg.org
Mon Sep 29 01:17:25 AEST 2025
Hi Leon.
On Sun, Sep 28, 2025 at 06:02:29PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro at nvidia.com>
>
> After conversion of arch code to use physical address mapping,
> there are no users of .map_page() and .unmap_page() callbacks,
> so let's remove them.
>
> Signed-off-by: Leon Romanovsky <leonro at nvidia.com>
> ---
> include/linux/dma-map-ops.h | 7 -------
> kernel/dma/mapping.c | 12 ------------
> kernel/dma/ops_helpers.c | 8 +-------
> 3 files changed, 1 insertion(+), 26 deletions(-)
It looks like you missed a few sparc32 bits:
mm/iommu.c:
static const struct dma_map_ops sbus_iommu_dma_gflush_ops = {
#ifdef CONFIG_SBUS
.alloc = sbus_iommu_alloc,
.free = sbus_iommu_free,
#endif
.map_page = sbus_iommu_map_page_gflush,
.unmap_page = sbus_iommu_unmap_page,
.map_sg = sbus_iommu_map_sg_gflush,
mm/io-unit.c:
static const struct dma_map_ops iounit_dma_ops = {
#ifdef CONFIG_SBUS
.alloc = iounit_alloc,
.free = iounit_free,
#endif
.map_page = iounit_map_page,
.unmap_page = iounit_unmap_page,
.map_sg = iounit_map_sg,
I did not compile test, but from a quick look they need to be updated.
Sam
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