linux-kernel - [PATCH] fjes: fix format string for trace output

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Date:   Mon, 17 Oct 2016 16:30:57 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     Arnd Bergmann <arnd@...db.de>,
        Taku Izumi <izumi.taku@...fujitsu.com>, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] fjes: fix format string for trace output

phys_addr_t may be wider than a pointer and has to be printed
using the special %pap format string, as pointed out by
this new warning.

arch/x86/include/../../../drivers/net/fjes/fjes_trace.h: In function ‘trace_raw_output_fjes_hw_start_debug_req’:
arch/x86/include/../../../drivers/net/fjes/fjes_trace.h:212:563: error: cast to pointer from integer of different size [-Werror=int-to-pointer-cast]

Note that this has to pass the address by reference instead of
casting it to a different type.

Fixes: b6ba737d0b29 ("fjes: ethtool -w and -W support for fjes driver")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/net/fjes/fjes_trace.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/fjes/fjes_trace.h b/drivers/net/fjes/fjes_trace.h
index 22e8f1a4f9ee..cca01a1b3d64 100644
--- a/drivers/net/fjes/fjes_trace.h
+++ b/drivers/net/fjes/fjes_trace.h
@@ -222,8 +222,8 @@ TRACE_EVENT(fjes_hw_start_debug_req,
 		__entry->mode = req_buf->start_trace.mode;
 		__entry->buffer = req_buf->start_trace.buffer[0];
 	),
-	TP_printk("req_buf=[length=%d, mode=%d, buffer=%p]",
-		  __entry->length, __entry->mode, (void *)__entry->buffer)
+	TP_printk("req_buf=[length=%d, mode=%d, buffer=%pap]",
+		  __entry->length, __entry->mode, &__entry->buffer)
 );
 
 TRACE_EVENT(fjes_hw_start_debug,
-- 
2.9.0