Re: [PATCH v5 RFC 1/6] page_pool: frag API support for 32-bit arch with 64-bit DMA

From: Yunsheng Lin
Date: Sun Jul 09 2023 - 08:54:29 EST


On 2023/7/8 8:01, Jakub Kicinski wrote:
> On Thu, 29 Jun 2023 20:02:21 +0800 Yunsheng Lin wrote:
>> -#include <linux/dma-direction.h>
>> +#include <linux/dma-mapping.h>
>
> And the include is still here, too, eh..

In V4, it has:

--- a/include/net/page_pool.h
+++ b/include/net/page_pool.h
@@ -33,6 +33,7 @@
#include <linux/mm.h> /* Needed by ptr_ring */
#include <linux/ptr_ring.h>
#include <linux/dma-direction.h>
+#include <linux/dma-mapping.h>

As dma_get_cache_alignment() defined in dma-mapping.h is used
here, so we need to include dma-mapping.h.

I though the agreement is that this patch only remove the
"#include <linux/dma-direction.h>" as we dma-mapping.h has included
dma-direction.h.

And Alexander will work on excluding page_pool.h from skbuff.h
https://lore.kernel.org/all/09842498-b3ba-320d-be8d-348b85e8d525@xxxxxxxxx/

Did I miss something obvious here? Or there is better way to do it
than the method discussed in the above thread?

>