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

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Date:   Mon, 23 Jul 2018 22:58:15 +0100
From:   Mark Railton <mark@...krailton.com>
To:     Randy Dunlap <rdunlap@...radead.org>
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 Mon, Jul 23, 2018 at 02:55:12PM -0700, Randy Dunlap wrote:
> 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

Thank you for the feedback, I will make sure to take that on board.

Mark