linux-kernel - Re: [PATCH] mm/memblock: replace u64 with phys_addr

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Message-ID: <20180704072308.GA458@jagdpanzerIV>
Date:   Wed, 4 Jul 2018 16:23:08 +0900
From:   Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>
To:     Mike Rapoport <rppt@...ux.vnet.ibm.com>
Cc:     Joe Perches <joe@...ches.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        linux-mm <linux-mm@...ck.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Michal Hocko <mhocko@...nel.org>,
        Matthew Wilcox <willy@...radead.org>,
        Sergey Senozhatsky <sergey.senozhatsky.work@...il.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] mm/memblock: replace u64 with phys_addr_t where
 appropriate

On (07/04/18 10:03), Mike Rapoport wrote:
> > %p[Ff] got deprecated by commit 04b8eb7a4ccd9ef9343e2720ccf2a5db8cfe2f67
> > 
> > I think it'd be simplest to just convert
> > all the %pF and %pf uses all at once.
> > 
> > $ git grep --name-only "%p[Ff]" | \
> >   xargs sed -i -e 's/%pF/%pS/' -e 's/%pf/%ps/'
> > 
> > and remove the appropriate Documentation bit.
> > 
> 
> Something like this:
> 
> From 0d3e7cf494123c2640b9a892160d2e2430787004 Mon Sep 17 00:00:00 2001
> From: Mike Rapoport <rppt@...ux.vnet.ibm.com>
> Date: Wed, 4 Jul 2018 09:55:50 +0300
> Subject: [PATCH] treewide: retire '%pF/%pf'
> 
> %p[Ff] got deprecated by commit 04b8eb7a4ccd9ef9343e2720ccf2a5db8cfe2f67
> ("symbol lookup: introduce dereference_symbol_descriptor()")
> 
> Replace their uses with %p[Ss] with
> 
> $ git grep --name-only "%p[Ff]" | \
>   xargs sed -i -e 's/%pF/%pS/' -e 's/%pf/%ps/'


Sorry, NACK on lib/vsprintf.c part

I definitely didn't want to do this tree-wide pf->ps conversion when
I introduced my patch set. pf/pF should have never existed, true,
but I think we must support pf/pF in vsprintf(). Simply because it
has been around for *far* too long. People tend to develop "habits",
you know, I'm quite sure ppc/hppa/etc folks still do [and will] use
pf/pF occasionally.

	-ss