From: Leon Romanovsky <leonro@nvidia.com>
Date: Fri, 1 May 2026 06:35:07 +0000 (+0300)
Subject: dma-debug: Remove unused DMA attribute parameter
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=5da80b8fb38006c7e79b06cba711c28219f17ab2;p=thirdparty%2Fkernel%2Flinux.git

dma-debug: Remove unused DMA attribute parameter

debug_dma_alloc_pages() always receives a DMA attribute value of 0,
because dma_alloc_pages() never receives any attributes from its callers.
As preparation for upcoming patches, remove this unused attribute from
the debug routine.

Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Samiullah Khawaja <skhawaja@google.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20260501-dma-attrs-debug-v2-3-8dbac75cd501@nvidia.com
---

diff --git a/kernel/dma/debug.c b/kernel/dma/debug.c
index 1a725edbbbf6a..3b53495337f5c 100644
--- a/kernel/dma/debug.c
+++ b/kernel/dma/debug.c
@@ -1567,8 +1567,7 @@ void debug_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
 
 void debug_dma_alloc_pages(struct device *dev, struct page *page,
 			   size_t size, int direction,
-			   dma_addr_t dma_addr,
-			   unsigned long attrs)
+			   dma_addr_t dma_addr)
 {
 	struct dma_debug_entry *entry;
 
@@ -1586,7 +1585,7 @@ void debug_dma_alloc_pages(struct device *dev, struct page *page,
 	entry->dev_addr  = dma_addr;
 	entry->direction = direction;
 
-	add_dma_entry(entry, attrs);
+	add_dma_entry(entry, 0);
 }
 
 void debug_dma_free_pages(struct device *dev, struct page *page,
diff --git a/kernel/dma/debug.h b/kernel/dma/debug.h
index da7be0bddcf67..24b8610850fbd 100644
--- a/kernel/dma/debug.h
+++ b/kernel/dma/debug.h
@@ -47,8 +47,7 @@ extern void debug_dma_sync_sg_for_device(struct device *dev,
 					 int nelems, int direction);
 extern void debug_dma_alloc_pages(struct device *dev, struct page *page,
 				  size_t size, int direction,
-				  dma_addr_t dma_addr,
-				  unsigned long attrs);
+				  dma_addr_t dma_addr);
 extern void debug_dma_free_pages(struct device *dev, struct page *page,
 				 size_t size, int direction,
 				 dma_addr_t dma_addr);
@@ -113,8 +112,7 @@ static inline void debug_dma_sync_sg_for_device(struct device *dev,
 
 static inline void debug_dma_alloc_pages(struct device *dev, struct page *page,
 					 size_t size, int direction,
-					 dma_addr_t dma_addr,
-					 unsigned long attrs)
+					 dma_addr_t dma_addr)
 {
 }
 
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c
index 23ed8eb9233e5..6cbefbd4158c8 100644
--- a/kernel/dma/mapping.c
+++ b/kernel/dma/mapping.c
@@ -733,7 +733,7 @@ struct page *dma_alloc_pages(struct device *dev, size_t size,
 	if (page) {
 		trace_dma_alloc_pages(dev, page_to_virt(page), *dma_handle,
 				      size, dir, gfp, 0);
-		debug_dma_alloc_pages(dev, page, size, dir, *dma_handle, 0);
+		debug_dma_alloc_pages(dev, page, size, dir, *dma_handle);
 	} else {
 		trace_dma_alloc_pages(dev, NULL, 0, size, dir, gfp, 0);
 	}