Hi all,

Today's linux-next merge of the s390 tree got a conflict in:

  arch/s390/include/asm/io.h

between commit:

  08a7874a8e6f ("mm/ioremap: pass pgprot_t to ioremap_prot() instead of unsigned long")

from the mm-unstable branch of the mm tree and commit:

  c94bff63e493 ("s390: Remove ioremap_wt() and pgprot_writethrough()")

from the s390 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.

-- 
Cheers,
Stephen Rothwell

diff --cc arch/s390/include/asm/io.h
index 82f1043a4fc3,251e0372ccbd..000000000000
--- a/arch/s390/include/asm/io.h
+++ b/arch/s390/include/asm/io.h
@@@ -33,9 -33,7 +33,7 @@@ void unxlate_dev_mem_ptr(phys_addr_t ph
  #define _PAGE_IOREMAP pgprot_val(PAGE_KERNEL)
  
  #define ioremap_wc(addr, size)  \
 -	ioremap_prot((addr), (size), pgprot_val(pgprot_writecombine(PAGE_KERNEL)))
 +	ioremap_prot((addr), (size), pgprot_writecombine(PAGE_KERNEL))
- #define ioremap_wt(addr, size)  \
- 	ioremap_prot((addr), (size), pgprot_writethrough(PAGE_KERNEL))
  
  static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
  {

Hi all,

On Wed, 12 Mar 2025 12:07:34 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> Today's linux-next merge of the s390 tree got a conflict in:
> 
>   arch/s390/include/asm/io.h
> 
> between commit:
> 
>   08a7874a8e6f ("mm/ioremap: pass pgprot_t to ioremap_prot() instead of unsigned long")
> 
> from the mm-unstable branch of the mm tree and commit:
> 
>   c94bff63e493 ("s390: Remove ioremap_wt() and pgprot_writethrough()")
> 
> from the s390 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.
> 
> -- 
> Cheers,
> Stephen Rothwell
> 
> diff --cc arch/s390/include/asm/io.h
> index 82f1043a4fc3,251e0372ccbd..000000000000
> --- a/arch/s390/include/asm/io.h
> +++ b/arch/s390/include/asm/io.h
> @@@ -33,9 -33,7 +33,7 @@@ void unxlate_dev_mem_ptr(phys_addr_t ph
>   #define _PAGE_IOREMAP pgprot_val(PAGE_KERNEL)
>   
>   #define ioremap_wc(addr, size)  \
>  -	ioremap_prot((addr), (size), pgprot_val(pgprot_writecombine(PAGE_KERNEL)))
>  +	ioremap_prot((addr), (size), pgprot_writecombine(PAGE_KERNEL))
> - #define ioremap_wt(addr, size)  \
> - 	ioremap_prot((addr), (size), pgprot_writethrough(PAGE_KERNEL))
>   
>   static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)
>   {

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

-- 
Cheers,
Stephen Rothwell