linux-kernel - [PATCH v2 18/22] usb: gadget: serial: %pf is only for function pointers

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Date:	Thu, 12 Mar 2015 16:46:01 -0500
From:	Scott Wood <scottwood@...escale.com>
To:	<trivial@...nel.org>, <linux-kernel@...r.kernel.org>
CC:	Scott Wood <scottwood@...escale.com>, <linux-usb@...r.kernel.org>,
	"Felipe Balbi" <balbi@...com>, Fabio Estevam <festevam@...il.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Subject: [PATCH v2 18/22] usb: gadget: serial: %pf is only for function pointers

Use %ps for actual addresses, otherwise you'll get bad output
on arches like ppc64 where %pf expects a function descriptor
(which is not what __builtin_return_address returns).

Signed-off-by: Scott Wood <scottwood@...escale.com>
Cc: linux-usb@...r.kernel.org
Cc: Felipe Balbi <balbi@...com>
Cc: Fabio Estevam <festevam@...il.com>
CC: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
---
v2: Fix commit message to reflect that this patch is about %pf, not %pF,
and to clarify (as requested) that __builtin_return_address does not
return a function pointer.

 drivers/usb/gadget/function/u_serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/function/u_serial.c b/drivers/usb/gadget/function/u_serial.c
index 491082a..89179ab 100644
--- a/drivers/usb/gadget/function/u_serial.c
+++ b/drivers/usb/gadget/function/u_serial.c
@@ -912,7 +912,7 @@ static int gs_put_char(struct tty_struct *tty, unsigned char ch)
 	unsigned long	flags;
 	int		status;
 
-	pr_vdebug("gs_put_char: (%d,%p) char=0x%x, called from %pf\n",
+	pr_vdebug("gs_put_char: (%d,%p) char=0x%x, called from %ps\n",
 		port->port_num, tty, ch, __builtin_return_address(0));
 
 	spin_lock_irqsave(&port->port_lock, flags);
-- 
2.1.0

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