Re: [Xen-devel] [PATCH MM-PART3 v2 08/12] xen/arm: mm: Remove enum xenmap_operation

[Stefano Stabellini <sstabellini@kernel.org>]

On Tue, 14 May 2019, Julien Grall wrote:
> The enum xenmap_operation is not used anymore. So remove it.
> 
> Signed-off-by: Julien Grall <julien.grall@arm.com>
> Reviewed-by: Andrii Anisov <andrii_anisov@epam.com>

Acked-by: Stefano Stabellini <sstabellini@kernel.org>


> ---
>     Changes in v2:
>         - Add Andrii's reviewed-by
> ---
>  xen/arch/arm/mm.c | 24 ++++++++----------------
>  1 file changed, 8 insertions(+), 16 deletions(-)
> 
> diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c
> index 86e1faeeb5..651e296041 100644
> --- a/xen/arch/arm/mm.c
> +++ b/xen/arch/arm/mm.c
> @@ -974,13 +974,6 @@ static int create_xen_table(lpae_t *entry)
>      return 0;
>  }
>  
> -enum xenmap_operation {
> -    INSERT,
> -    REMOVE,
> -    MODIFY,
> -    RESERVE
> -};
> -
>  /* Sanity check of the entry */
>  static bool xen_pt_check_entry(lpae_t entry, mfn_t mfn, unsigned int flags)
>  {
> @@ -1040,8 +1033,8 @@ static bool xen_pt_check_entry(lpae_t entry, mfn_t mfn, unsigned int flags)
>      return true;
>  }
>  
> -static int xen_pt_update_entry(enum xenmap_operation op, unsigned long addr,
> -                               mfn_t mfn, unsigned int flags)
> +static int xen_pt_update_entry(unsigned long addr, mfn_t mfn,
> +                               unsigned int flags)
>  {
>      lpae_t pte, *entry;
>      lpae_t *third = NULL;
> @@ -1099,8 +1092,7 @@ static int xen_pt_update_entry(enum xenmap_operation op, unsigned long addr,
>  
>  static DEFINE_SPINLOCK(xen_pt_lock);
>  
> -static int xen_pt_update(enum xenmap_operation op,
> -                         unsigned long virt,
> +static int xen_pt_update(unsigned long virt,
>                           mfn_t mfn,
>                           unsigned long nr_mfns,
>                           unsigned int flags)
> @@ -1131,7 +1123,7 @@ static int xen_pt_update(enum xenmap_operation op,
>  
>      for( ; addr < addr_end; addr += PAGE_SIZE )
>      {
> -        rc = xen_pt_update_entry(op, addr, mfn, flags);
> +        rc = xen_pt_update_entry(addr, mfn, flags);
>          if ( rc )
>              break;
>  
> @@ -1156,24 +1148,24 @@ int map_pages_to_xen(unsigned long virt,
>                       unsigned long nr_mfns,
>                       unsigned int flags)
>  {
> -    return xen_pt_update(INSERT, virt, mfn, nr_mfns, flags);
> +    return xen_pt_update(virt, mfn, nr_mfns, flags);
>  }
>  
>  int populate_pt_range(unsigned long virt, unsigned long nr_mfns)
>  {
> -    return xen_pt_update(RESERVE, virt, INVALID_MFN, nr_mfns, _PAGE_POPULATE);
> +    return xen_pt_update(virt, INVALID_MFN, nr_mfns, _PAGE_POPULATE);
>  }
>  
>  int destroy_xen_mappings(unsigned long v, unsigned long e)
>  {
>      ASSERT(v <= e);
> -    return xen_pt_update(REMOVE, v, INVALID_MFN, (e - v) >> PAGE_SHIFT, 0);
> +    return xen_pt_update(v, INVALID_MFN, (e - v) >> PAGE_SHIFT, 0);
>  }
>  
>  int modify_xen_mappings(unsigned long s, unsigned long e, unsigned int flags)
>  {
>      ASSERT(s <= e);
> -    return xen_pt_update(MODIFY, s, INVALID_MFN, (e - s) >> PAGE_SHIFT, flags);
> +    return xen_pt_update(s, INVALID_MFN, (e - s) >> PAGE_SHIFT, flags);
>  }
>  
>  enum mg { mg_clear, mg_ro, mg_rw, mg_rx };
> -- 
> 2.11.0
> 

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