Re: [PATCH] Fixed all coding style issues for drivers/staging/media/lirc/

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On 10/02/2014 07:45 PM, Joe Perches wrote:
On Thu, 2014-10-02 at 10:29 -0300, Mauro Carvalho Chehab wrote:
Em Wed, 01 Oct 2014 21:40:02 -0700 Amber Thrall <amber.rose.thrall@xxxxxxxxx> escreveu:
Fixed various coding style issues, including strings over 80 characters long and many
deprecated printk's have been replaced with proper methods.
[]
diff --git a/drivers/staging/media/lirc/lirc_imon.c b/drivers/staging/media/lirc/lirc_imon.c
[]
@@ -623,8 +623,8 @@ static void imon_incoming_packet(struct imon_context *context,
  	if (debug) {
  		dev_info(dev, "raw packet: ");
  		for (i = 0; i < len; ++i)
-			printk("%02x ", buf[i]);
-		printk("\n");
+			dev_info(dev, "%02x ", buf[i]);
+		dev_info(dev, "\n");
  	}

This is wrong, as the second printk should be printk_cont.

The best here would be to change all above to use %*ph.
So, just:

	dev_debug(dev, "raw packet: %*ph\n", len, buf);

Not quite.

%*ph is length limited and only useful for lengths < 30 or so.
Even then, it's pretty ugly.

print_hex_dump_debug() is generally better.

That is place where you print 8 debug bytes, which are received remote controller code. IMHO %*ph format is just what you like in that case.

Why print_hex_dump_debug() is better? IIRC it could not be even controlled like those dynamic debug printings.

regards
Antti

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