linux-kernel - [PATCH 1/4] [media] lmedm04: use %phN for hex dump

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Date:   Wed, 30 Nov 2016 22:39:09 +0100
From:   Rasmus Villemoes <linux@...musvillemoes.dk>
To:     Malcolm Priestley <tvboxspy@...il.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>
Cc:     Rasmus Villemoes <linux@...musvillemoes.dk>,
        linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/4] [media] lmedm04: use %phN for hex dump

Using the %ph printf extension for hex dumps like this makes the
generated code quite a bit smaller.

Signed-off-by: Rasmus Villemoes <linux@...musvillemoes.dk>
---
 drivers/media/usb/dvb-usb-v2/lmedm04.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/usb/dvb-usb-v2/lmedm04.c b/drivers/media/usb/dvb-usb-v2/lmedm04.c
index 0e8fb89896c4..7692701878ba 100644
--- a/drivers/media/usb/dvb-usb-v2/lmedm04.c
+++ b/drivers/media/usb/dvb-usb-v2/lmedm04.c
@@ -99,9 +99,7 @@ static int dvb_usb_lme2510_debug;
 } while (0)
 #define deb_info(level, args...) lme_debug(dvb_usb_lme2510_debug, level, args)
 #define debug_data_snipet(level, name, p) \
-	 deb_info(level, name" (%02x%02x%02x%02x%02x%02x%02x%02x)", \
-		*p, *(p+1), *(p+2), *(p+3), *(p+4), \
-			*(p+5), *(p+6), *(p+7));
+	 deb_info(level, name" (%8phN)", p);
 #define info(args...) pr_info(DVB_USB_LOG_PREFIX": "args)
 
 module_param_named(debug, dvb_usb_lme2510_debug, int, 0644);
-- 
2.1.4