linux-kernel - Re: [PATCH 1/1] Remove unneeded "0x" when %pa formatting is used.

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Message-ID: <CAHp75VfdGJtDia5oqVWzJ_pWKm=-BrHThN_9Uz8QU2c9ZT5PJA@mail.gmail.com>
Date:	Sun, 13 Dec 2015 03:13:46 +0200
From:	Andy Shevchenko <andy.shevchenko@...il.com>
To:	Dmitry Krivenok <krivenok.dmitry@...il.com>,
	Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] Remove unneeded "0x" when %pa formatting is used.

On Mon, Nov 30, 2015 at 10:33 PM, Dmitry Krivenok
<krivenok.dmitry@...il.com> wrote:
>>>      if (size > max_size) {
>>>          dev_err(pcie->dev,
>>> -            "res size 0x%pap exceeds max supported size 0x%llx\n",
>>> +            "res size %pap exceeds max supported size 0x%llx\n",
>>
>> %pa also works.
>>
>
> Yes, but AFAIK %pap and %pa are identical (see address_val() in lib/vsprintf.c),
> so I'm not sure I understand your comment.
>
> Did you mean that %pa should be used instead of %pap?
> I see that %pa is used much more often than %pap, but I didn't find any
> evidence that %pap is deprecated.

+Rasmus.

No, it's not, but it explicitly for phys_addr_t (it might be nice to
to have %par, for example for explicitly shown that is for
resource_size_t, Rasmus?).

For my opinion for resources better to use %pa for now, though %pap
will work as well.

-- 
With Best Regards,
Andy Shevchenko
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