linux-kernel - Re: [PATCH] Drivers: Xen: xlate

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Date:   Mon, 23 Jul 2018 14:55:12 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Mark Railton <mark@...krailton.com>
Cc:     boris.ostrovsky@...cle.com, jgross@...e.com,
        xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Drivers: Xen: xlate_mmu.c: Fixed comment layout

On 07/23/2018 02:48 PM, Mark Railton wrote:
> On Mon, Jul 23, 2018 at 02:44:28PM -0700, Randy Dunlap wrote:
>> On 07/23/2018 02:40 PM, Mark Railton wrote:
>>> On Mon, Jul 23, 2018 at 02:38:20PM -0700, Randy Dunlap wrote:
>>>> On 07/23/2018 02:34 PM, Mark Railton wrote:
>>>>> Fixed issue with multi line comment
>>>>
>>>> Fix [not Fixed]
>>>>
>>>>>
>>>>> Signed-off-by: Mark Railton <mark@...krailton.com>
>>>>> ---
>>>>>  drivers/xen/xlate_mmu.c | 5 +++--
>>>>>  1 file changed, 3 insertions(+), 2 deletions(-)
>>>>>
>>>>> diff --git a/drivers/xen/xlate_mmu.c b/drivers/xen/xlate_mmu.c
>>>>> index 23f1387b3ef7..3b03bc1641ed 100644
>>>>> --- a/drivers/xen/xlate_mmu.c
>>>>> +++ b/drivers/xen/xlate_mmu.c
>>>>> @@ -151,8 +151,9 @@ int xen_xlate_remap_gfn_array(struct vm_area_struct *vma,
>>>>>  	struct remap_data data;
>>>>>  	unsigned long range = DIV_ROUND_UP(nr, XEN_PFN_PER_PAGE) << PAGE_SHIFT;
>>>>>  
>>>>> -	/* Kept here for the purpose of making sure code doesn't break
>>>>> -	   x86 PVOPS */
>>>>> +	/* Kept here for the purpose of making sure code doesn't
>>>>> +	 * break x86 PVOPS
>>>>> +	 */
>>>>
>>>> That is still not the preferred kernel multi-line comment style.
>>>> Documentation/process/coding-style.rst says:
>>>>
>>>> 	/*
>>>> 	 * This is the preferred style for multi-line
>>>> 	 * comments in the Linux kernel source code.
>>>> 	 * Please use it consistently.
>>>> 	 *
>>>> 	 * Description:  A column of asterisks on the left side,
>>>> 	 * with beginning and ending almost-blank lines.
>>>> 	 */
>>>>
>>>> although Networking code has a slightly different preferred style (as in
>>>> your patch).
>>>>
>>>>>  	BUG_ON(!((vma->vm_flags & (VM_PFNMAP | VM_IO)) == (VM_PFNMAP | VM_IO)));
>>>>>  
>>>>>  	data.fgfn = gfn;
>>>>>
>>>>
>>>>
>>>> -- 
>>>> ~Randy
>>>
>>> Thank's for the feedback, I'll get that updated now.
>>>
>>> I'm still kinda new to this, I assume I need to send the new patch via
>>> git send-email?
>>
>> That is one option.  Use whatever works for you.
>>
>> There are several email clients that also work well.
>> See Documentation/process/email-clients.rst.
>>
>>
>> -- 
>> ~Randy
> 
> From 57c8104d2a30020005be16df2ca69ed66f6c4ae9 Mon Sep 17 00:00:00 2001
> From: Mark Railton <mark@...krailton.com>
> Date: Mon, 23 Jul 2018 22:28:53 +0100
> Subject: [PATCH] Drivers: Xen: xlate_mmu.c: Fixed comment layout
> 
> Fixed issue with multi line comment
> 
> Signed-off-by: Mark Railton <mark@...krailton.com>
> ---
>  drivers/xen/xlate_mmu.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/xen/xlate_mmu.c b/drivers/xen/xlate_mmu.c
> index 23f1387b3ef7..2b77c79f8ce7 100644
> --- a/drivers/xen/xlate_mmu.c
> +++ b/drivers/xen/xlate_mmu.c
> @@ -151,8 +151,10 @@ int xen_xlate_remap_gfn_array(struct vm_area_struct *vma,
>  	struct remap_data data;
>  	unsigned long range = DIV_ROUND_UP(nr, XEN_PFN_PER_PAGE) << PAGE_SHIFT;
> 
> -	/* Kept here for the purpose of making sure code doesn't break
> -	   x86 PVOPS */
> +	/*
> +	 * Kept here for the purpose of making sure code doesn't
> +	 * break x86 PVOPS
> +	 */
>  	BUG_ON(!((vma->vm_flags & (VM_PFNMAP | VM_IO)) == (VM_PFNMAP | VM_IO)));
> 
>  	data.fgfn = gfn;
> --
> 2.17.1


Hi,

a.  The subject and the patch description should be in present tense, i.e.,
Fix instead of Fixed.

b.  Ideally you start a new email thread for new versions of a patch (but Cc:
the interested parties).

For the patch itself:
Acked-by: Randy Dunlap <rdunlap@...radead.org>

Thanks.

-- 
~Randy