[Linaro-mm-sig] Re: [RFC PATCH v7 06/13] dma-contiguous: Accept an explicit minimum alignment

On Mon, Sep 21, 2026 at 08:18:40PM +0530, Aneesh Kumar K.V (Arm) wrote:

@@ -125,7 +126,8 @@ static inline int dma_contiguous_reserve_area(phys_addr_t size, return -ENOSYS; } static inline struct page *dma_alloc_from_contiguous(struct device *dev,

• size_t count, unsigned int order, bool no_warn)
  

• size_t count, unsigned int order, unsigned int required_order,
  

• bool no_warn)
  

{ return NULL; } @@ -136,7 +138,7 @@ static inline bool dma_release_from_contiguous(struct device *dev, } /* Use fallback alloc() and free() when CONFIG_DMA_CMA=n */ static inline struct page *dma_alloc_contiguous(struct device *dev, size_t size,

• gfp_t gfp)
  

• gfp_t gfp, unsigned int align_order)
  

Can we not just bake the alignment further down in these functions rather than getting the callers to pass the {required,align}_order?