linux-kernel - Re: [PATCH] media/pci/cobalt: Use %*ph to print small buffers

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Date:	Thu, 27 Aug 2015 01:07:17 +0600
From:	Alexander Kuleshov <kuleshovmail@...il.com>
To:	Joe Perches <joe@...ches.com>
Cc:	Hans Verkuil <hans.verkuil@...co.com>,
	Mauro Carvalho Chehab <mchehab@....samsung.com>,
	linux-media@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] media/pci/cobalt: Use %*ph to print small buffers

Oh, nope, resent

2015-08-27 0:56 GMT+06:00 Joe Perches <joe@...ches.com>:
> On Thu, 2015-08-27 at 00:51 +0600, Alexander Kuleshov wrote:
>> printk() supports %*ph format specifier for printing a small buffers,
>> let's use it intead of %02x %02x...
>
> Having just suffered this myself...
>
>> diff --git a/drivers/media/pci/cobalt/cobalt-cpld.c b/drivers/media/pci/cobalt/cobalt-cpld.c
> []
>> @@ -330,9 +330,7 @@ bool cobalt_cpld_set_freq(struct cobalt *cobalt, unsigned f_out)
>>
>>               if (!memcmp(read_regs, regs, sizeof(read_regs)))
>>                       break;
>> -             cobalt_dbg(1, "retry: %02x %02x %02x %02x %02x %02x\n",
>> -                     read_regs[0], read_regs[1], read_regs[2],
>> -                     read_regs[3], read_regs[4], read_regs[5]);
>> +             cobalt_dbg(1, "retry: %6ph\n");
>
> Aren't you missing something like compile testing?
>
>
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