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Message-ID: <20150916113053.21c217ce@canb.auug.org.au>
Date: Wed, 16 Sep 2015 11:30:53 +1000
From: Stephen Rothwell <sfr@...b.auug.org.au>
To: Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
"H. Peter Anvin" <hpa@...or.com>,
Peter Zijlstra <peterz@...radead.org>,
David Miller <davem@...emloft.net>, <netdev@...r.kernel.org>
Cc: linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
Oliver Neukum <oneukum@...e.com>
Subject: linux-next: build failure after merge of the tip tree
Hi all,
After merging the next-20150915 version of the tip tree, today's
linux-next build (x86_64 allmodconfig) failed like this:
In file included from drivers/usb/gadget/function/u_ether.h:20:0,
from drivers/usb/gadget/function/f_ncm.c:26:
include/linux/usb/cdc.h:23:8: error: redefinition of 'struct usb_cdc_parsed_header'
struct usb_cdc_parsed_header {
^
In file included from drivers/usb/gadget/function/f_ncm.c:24:0:
include/linux/usb/cdc.h:23:8: note: originally defined here
struct usb_cdc_parsed_header {
^
In file included from drivers/usb/gadget/function/u_ether.h:20:0,
from drivers/usb/gadget/function/f_ncm.c:26:
include/linux/usb/cdc.h:44:5: error: conflicting types for 'cdc_parse_cdc_header'
int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
^
In file included from drivers/usb/gadget/function/f_ncm.c:24:0:
include/linux/usb/cdc.h:44:5: note: previous declaration of 'cdc_parse_cdc_header' was here
int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
^
In file included from drivers/usb/gadget/function/u_serial.h:16:0,
from drivers/usb/gadget/legacy/cdc2.c:17:
include/linux/usb/cdc.h:23:8: error: redefinition of 'struct usb_cdc_parsed_header'
struct usb_cdc_parsed_header {
^
In file included from drivers/usb/gadget/function/u_ether.h:20:0,
from drivers/usb/gadget/legacy/cdc2.c:16:
include/linux/usb/cdc.h:23:8: note: originally defined here
struct usb_cdc_parsed_header {
^
In file included from drivers/usb/gadget/function/u_serial.h:16:0,
from drivers/usb/gadget/legacy/cdc2.c:17:
include/linux/usb/cdc.h:44:5: error: conflicting types for 'cdc_parse_cdc_header'
int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
^
In file included from drivers/usb/gadget/function/u_ether.h:20:0,
from drivers/usb/gadget/legacy/cdc2.c:16:
include/linux/usb/cdc.h:44:5: note: previous declaration of 'cdc_parse_cdc_header' was here
int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
^
Caused by commit
c40a2c8817e4 ("CDC: common parser for extra headers")
from the net-next tree that added include/linux/usb/cdc.h with no
reinclusion guards.
I am not sure why I did not see this failure when building after
merging the net-next tree. Maybe it is exposed by some config change
in the tip tree?
I have added the following fix patch for today:
From: Stephen Rothwell <sfr@...b.auug.org.au>
Date: Wed, 16 Sep 2015 11:10:16 +1000
Subject: [PATCH] cdc: add header guards
Signed-off-by: Stephen Rothwell <sfr@...b.auug.org.au>
---
include/linux/usb/cdc.h | 4 ++++
include/uapi/linux/usb/cdc.h | 6 +++---
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/include/linux/usb/cdc.h b/include/linux/usb/cdc.h
index 959d0c838113..b5706f94ee9e 100644
--- a/include/linux/usb/cdc.h
+++ b/include/linux/usb/cdc.h
@@ -7,6 +7,8 @@
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*/
+#ifndef __LINUX_USB_CDC_H
+#define __LINUX_USB_CDC_H
#include <uapi/linux/usb/cdc.h>
@@ -45,3 +47,5 @@ int cdc_parse_cdc_header(struct usb_cdc_parsed_header *hdr,
struct usb_interface *intf,
u8 *buffer,
int buflen);
+
+#endif /* __LINUX_USB_CDC_H */
diff --git a/include/uapi/linux/usb/cdc.h b/include/uapi/linux/usb/cdc.h
index b6a9cdd6e096..e2bc417b243b 100644
--- a/include/uapi/linux/usb/cdc.h
+++ b/include/uapi/linux/usb/cdc.h
@@ -6,8 +6,8 @@
* firmware based USB peripherals.
*/
-#ifndef __LINUX_USB_CDC_H
-#define __LINUX_USB_CDC_H
+#ifndef __UAPI_LINUX_USB_CDC_H
+#define __UAPI_LINUX_USB_CDC_H
#include <linux/types.h>
@@ -444,4 +444,4 @@ struct usb_cdc_ncm_ndp_input_size {
#define USB_CDC_NCM_CRC_NOT_APPENDED 0x00
#define USB_CDC_NCM_CRC_APPENDED 0x01
-#endif /* __LINUX_USB_CDC_H */
+#endif /* __UAPI_LINUX_USB_CDC_H */
--
2.5.1
--
Cheers,
Stephen Rothwell sfr@...b.auug.org.au
--
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