linux-kernel - Re: linux-next: manual merge of the mm tree with Linus' tree

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Message-ID: <20240918093643.1662ccab@canb.auug.org.au>
Date: Wed, 18 Sep 2024 09:36:43 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: "Huang, Ying" <ying.huang@...el.com>, Linux Kernel Mailing List
 <linux-kernel@...r.kernel.org>, Linux Next Mailing List
 <linux-next@...r.kernel.org>, Thomas Gleixner <tglx@...utronix.de>
Subject: Re: linux-next: manual merge of the mm tree with Linus' tree

Hi all,

On Mon, 9 Sep 2024 10:00:43 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Today's linux-next merge of the mm tree got a conflict in:
> 
>   kernel/resource.c
> 
> between commit:
> 
>   ea72ce5da228 ("x86/kaslr: Expose and use the end of the physical memory address space")
> 
> from Linus' tree and commit:
> 
>   e2941fe697c8 ("resource, kunit: add test case for region_intersects()")
> 
> from the mm-unstable branch of the mm tree.
> 
> I fixed it up (I just used the former - and see below) and can carry the
> fix as necessary. This is now fixed as far as linux-next is concerned,
> but any non trivial conflicts should be mentioned to your upstream
> maintainer when your tree is submitted for merging.  You may also want
> to consider cooperating with the maintainer of the conflicting tree to
> minimise any particularly complex conflicts.
> 
> diff --cc kernel/resource.c
> index 1ac30110b5b3,2ee143fff1af..000000000000
> --- a/kernel/resource.c
> +++ b/kernel/resource.c
> @@@ -1817,8 -1859,18 +1859,12 @@@ EXPORT_SYMBOL(resource_list_free)
>   #ifdef CONFIG_GET_FREE_REGION
>   #define GFR_DESCENDING		(1UL << 0)
>   #define GFR_REQUEST_REGION	(1UL << 1)
> - #define GFR_DEFAULT_ALIGN (1UL << PA_SECTION_SHIFT)
> + #ifdef PA_SECTION_SHIFT
> + #define GFR_DEFAULT_ALIGN	(1UL << PA_SECTION_SHIFT)
> + #else
> + #define GFR_DEFAULT_ALIGN	PAGE_SIZE
> + #endif
>   
>  -#ifdef MAX_PHYSMEM_BITS
>  -#define MAX_PHYS_ADDR		((1ULL << MAX_PHYSMEM_BITS) - 1)
>  -#else
>  -#define MAX_PHYS_ADDR		(-1ULL)
>  -#endif
>  -
>   static resource_size_t gfr_start(struct resource *base, resource_size_t size,
>   				 resource_size_t align, unsigned long flags)
>   {

This is now a conflict between the mm-stable tree and Linus' tree.

-- 
Cheers,
Stephen Rothwell

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