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

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Message-ID: <20250326120530.34cc9b24@canb.auug.org.au>
Date: Wed, 26 Mar 2025 12:05:30 +1100
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>,
 "H. Peter Anvin" <hpa@...or.com>, Peter Zijlstra <peterz@...radead.org>,
 Anshuman Khandual <anshuman.khandual@....com>, Ingo Molnar
 <mingo@...nel.org>, "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
 Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Linux Next
 Mailing List <linux-next@...r.kernel.org>, Ryan Roberts
 <ryan.roberts@....com>
Subject: Re: linux-next: manual merge of the tip tree with the mm tree

Hi all,

On Mon, 24 Feb 2025 14:42:40 +1100 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
>
> Today's linux-next merge of the tip tree got a conflict in:
> 
>   arch/riscv/include/asm/io.h
> 
> between commit:
> 
>   85731f537aaf ("mm/ioremap: pass pgprot_t to ioremap_prot() instead of unsigned long")
> 
> from th mm-unstable breanch of the mm tree and commit:
> 
>   a9ebcb88136c ("mm/memremap: Pass down MEMREMAP_* flags to arch_memremap_wb()")
> 
> from the tip tree.
> 
> I fixed it up (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 arch/riscv/include/asm/io.h
> index 0536846db9b6,0257f4aa7ff4..000000000000
> --- a/arch/riscv/include/asm/io.h
> +++ b/arch/riscv/include/asm/io.h
> @@@ -136,8 -136,8 +136,8 @@@ __io_writes_outs(outs, u64, q, __io_pbr
>   #include <asm-generic/io.h>
>   
>   #ifdef CONFIG_MMU
> - #define arch_memremap_wb(addr, size)	\
> + #define arch_memremap_wb(addr, size, flags)	\
>  -	((__force void *)ioremap_prot((addr), (size), _PAGE_KERNEL))
>  +	((__force void *)ioremap_prot((addr), (size), __pgprot(_PAGE_KERNEL)))
>   #endif
>   
>   #endif /* _ASM_RISCV_IO_H */

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

-- 
Cheers,
Stephen Rothwell

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