linux-kernel - Re: [PATCH trivial] include/asm-generic/pgtable.h: Notice about coding styles

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Date:	Sun, 13 Dec 2015 17:14:09 +0800
From:	Chen Gang <chengang@...ndsoft.com.cn>
To:	Chen Gang <chengang@...ndsoft.com.cn>, arnd@...db.de,
	trivial@...nel.org
CC:	Linux-Arch <linux-arch@...r.kernel.org>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	chenwei@...ndsoft.com.cn, Chen Gang <gang.chen.5i5j@...il.com>
Subject: Re: [PATCH trivial] include/asm-generic/pgtable.h: Notice about coding
 styles

Hello all:

After communicated with my company, I am permitted to use my company
email to send patches to open source community.

My company supports what I have done for open source community, but at
present, I still use my personal mail id as Signed-of-by (make and send
patches mainly during my free time).

And thank my company for the support. 


Thanks.

On 12/13/15 17:08, Chen Gang wrote:
> 
> Notice about 80 columns, and function parameters alignment.
> 
> Export zero_pfn only once.
> 
> Remove pte variable in ptep_get_and_clear_full().
> 
> Signed-off-by: Chen Gang <gang.chen.5i5j@...il.com>
> ---
>  include/asm-generic/pgtable.h | 16 +++++++---------
>  1 file changed, 7 insertions(+), 9 deletions(-)
> 
> diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h
> index 63abda1..aecf0141 100644
> --- a/include/asm-generic/pgtable.h
> +++ b/include/asm-generic/pgtable.h
> @@ -135,8 +135,8 @@ static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
>  #ifndef __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR_FULL
>  #ifdef CONFIG_TRANSPARENT_HUGEPAGE
>  static inline pmd_t pmdp_huge_get_and_clear_full(struct mm_struct *mm,
> -					    unsigned long address, pmd_t *pmdp,
> -					    int full)
> +						 unsigned long address,
> +						 pmd_t *pmdp, int full)
>  {
>  	return pmdp_huge_get_and_clear(mm, address, pmdp);
>  }
> @@ -148,9 +148,7 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm,
>  					    unsigned long address, pte_t *ptep,
>  					    int full)
>  {
> -	pte_t pte;
> -	pte = ptep_get_and_clear(mm, address, ptep);
> -	return pte;
> +	return ptep_get_and_clear(mm, address, ptep);
>  }
>  #endif
>  
> @@ -183,7 +181,8 @@ extern pmd_t pmdp_huge_clear_flush(struct vm_area_struct *vma,
>  
>  #ifndef __HAVE_ARCH_PTEP_SET_WRPROTECT
>  struct mm_struct;
> -static inline void ptep_set_wrprotect(struct mm_struct *mm, unsigned long address, pte_t *ptep)
> +static inline void ptep_set_wrprotect(struct mm_struct *mm,
> +				      unsigned long address, pte_t *ptep)
>  {
>  	pte_t old_pte = *ptep;
>  	set_pte_at(mm, address, ptep, pte_wrprotect(old_pte));
> @@ -583,10 +582,11 @@ extern void untrack_pfn(struct vm_area_struct *vma, unsigned long pfn,
>  			unsigned long size);
>  #endif
>  
> +extern unsigned long zero_pfn;
> +
>  #ifdef __HAVE_COLOR_ZERO_PAGE
>  static inline int is_zero_pfn(unsigned long pfn)
>  {
> -	extern unsigned long zero_pfn;
>  	unsigned long offset_from_zero_pfn = pfn - zero_pfn;
>  	return offset_from_zero_pfn <= (zero_page_mask >> PAGE_SHIFT);
>  }
> @@ -596,13 +596,11 @@ static inline int is_zero_pfn(unsigned long pfn)
>  #else
>  static inline int is_zero_pfn(unsigned long pfn)
>  {
> -	extern unsigned long zero_pfn;
>  	return pfn == zero_pfn;
>  }
>  
>  static inline unsigned long my_zero_pfn(unsigned long addr)
>  {
> -	extern unsigned long zero_pfn;
>  	return zero_pfn;
>  }
>  #endif
> 

-- 
Chen Gang (陈刚)

Open, share, and attitude like air, water, and life which God blessed
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