linux-kernel - linux-next: build failure after merge of the driver-core tree

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Date:	Fri, 18 Jan 2013 13:29:04 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Greg KH <greg@...ah.com>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Vladimir Kondratiev <qca_vkondrat@....qualcomm.com>,
	Jason Baron <jbaron@...hat.com>,
	"John W. Linville" <linville@...driver.com>
Subject: linux-next: build failure after merge of the driver-core tree

Hi Greg,

After merging the driver-core tree, today's linux-next build (x86_64
allmodconfig) failed like this:

In file included from drivers/net/wireless/ath/wil6210/wil6210.h:24:0,
                 from drivers/net/wireless/ath/wil6210/main.c:26:
drivers/net/wireless/ath/wil6210/dbg_hexdump.h:21:0: error: "print_hex_dump_bytes" redefined [-Werror]
include/linux/printk.h:322:0: note: this is the location of the previous definition

Caused by commit 7a555613eb77 ("dynamic_debug: dynamic hex dump")
interacting with commit 2be7d22f0625 ("wireless: add new wil6210 802.11ad
60GHz driver") that was added to Linus' tree in the last few days.

I have applied the following merge fix patch for today:

From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Fri, 18 Jan 2013 13:24:32 +1100
Subject: [PATCH] wireless: remove conflicting version of print_hex_dump_bytes

Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
 drivers/net/wireless/ath/wil6210/dbg_hexdump.h |   18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/dbg_hexdump.h b/drivers/net/wireless/ath/wil6210/dbg_hexdump.h
index 6a315ba..e5712f0 100644
--- a/drivers/net/wireless/ath/wil6210/dbg_hexdump.h
+++ b/drivers/net/wireless/ath/wil6210/dbg_hexdump.h
@@ -1,25 +1,15 @@
 #ifndef WIL_DBG_HEXDUMP_H_
 #define WIL_DBG_HEXDUMP_H_
 
-#if defined(CONFIG_DYNAMIC_DEBUG)
-#define wil_dynamic_hex_dump(prefix_str, prefix_type, rowsize,	\
-			     groupsize, buf, len, ascii)	\
-do {								\
-	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor,		\
-		__builtin_constant_p(prefix_str) ? prefix_str : "hexdump");\
-	if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT))	\
-		print_hex_dump(KERN_DEBUG, prefix_str,		\
-			       prefix_type, rowsize, groupsize,	\
-			       buf, len, ascii);		\
-} while (0)
+#include <linux/printk.h>
+#include <linux/dynamic_debug.h>
 
+#if defined(CONFIG_DYNAMIC_DEBUG)
 #define wil_print_hex_dump_debug(prefix_str, prefix_type, rowsize,	\
 				 groupsize, buf, len, ascii)		\
-	wil_dynamic_hex_dump(prefix_str, prefix_type, rowsize,		\
+	dynamic_hex_dump(prefix_str, prefix_type, rowsize,		\
 			     groupsize, buf, len, ascii)
 
-#define print_hex_dump_bytes(prefix_str, prefix_type, buf, len)	\
-	wil_dynamic_hex_dump(prefix_str, prefix_type, 16, 1, buf, len, true)
 #else /* defined(CONFIG_DYNAMIC_DEBUG) */
 #define wil_print_hex_dump_debug(prefix_str, prefix_type, rowsize,	\
 				 groupsize, buf, len, ascii)		\
-- 
1.7.10.280.gaa39

-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au

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