Re: [PATCH v6 14/20] dma-direct: return struct page from dma_direct_alloc_from_pool()
From: Catalin Marinas <catalin.marinas@arm.com>
Date: 2026-06-09 13:46:15
Also in:
linux-arm-kernel, linux-coco, linux-iommu, linux-s390, lkml, stable
On Thu, Jun 04, 2026 at 02:09:53PM +0530, Aneesh Kumar K.V (Arm) wrote:
Commit 5b138c534fda ("dma-direct: factor out a dma_direct_alloc_from_pool
helper") changed dma_direct_alloc_from_pool() to return the CPU address
from dma_alloc_from_pool(). That fits dma_direct_alloc(), but
dma_direct_alloc_pages() also uses the helper and expects a struct page *.
Fix this by making dma_direct_alloc_from_pool() return the struct page *
again, and pass the CPU address back through an out-parameter for the
dma_direct_alloc() caller.
Fixes: 5b138c534fda ("dma-direct: factor out a dma_direct_alloc_from_pool helper")
Cc: stable@vger.kernel.org
Tested-by: Michael Kelley <redacted>
Tested-by: Mostafa Saleh <smostafa@google.com>
Signed-off-by: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>Nit: remove the empty line after Cc: stable. It may confuse tooling. -- Catalin