linux-next: build failure after merge of the usb tree

Stephen Rothwell
2019-06-19T06:43:58Z

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Hi all,

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

In file included from usr/include/linux/usbdevice_fs.hdrtest.c:1:
./usr/include/linux/usbdevice_fs.h:88:2: error: unknown type name 'u8'
u8 num_ports; /* Number of ports the device is connected */
^~
./usr/include/linux/usbdevice_fs.h:92:2: error: unknown type name 'u8'
u8 ports[7]; /* List of ports on the way from the root */
^~

Caused by commit

6d101f24f1dd ("USB: add usbfs ioctl to retrieve the connection parameters")

Presumably exposed by commit

b91976b7c0e3 ("kbuild: compile-test UAPI headers to ensure they are self-contained")

from the kbuild tree.

I have added this patch for now:

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Wed, 19 Jun 2019 16:36:16 +1000
Subject: [PATCH] USB: fix types in uapi include

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
include/uapi/linux/usbdevice_fs.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/usbdevice_fs.h b/include/uapi/linux/usbdevice_fs.h
index 4b267fe3776e..78efe870c2b7 100644
--- a/include/uapi/linux/usbdevice_fs.h
+++ b/include/uapi/linux/usbdevice_fs.h
@@ -85,11 +85,11 @@ struct usbdevfs_conninfo_ex {
/* kernel, the device is connected to. */
__u32 devnum; /* Device address on the bus. */
__u32 speed; /* USB_SPEED_* constants from ch9.h */
- u8 num_ports; /* Number of ports the device is connected */
+ __u8 num_ports; /* Number of ports the device is connected */
/* to on the way to the root hub. It may */
/* be bigger than size of 'ports' array so */
/* userspace can detect overflows. */
- u8 ports[7]; /* List of ports on the way from the root */
+ __u8 ports[7]; /* List of ports on the way from the root */
/* hub to the device. Current limit in */
/* USB specification is 7 tiers (root hub, */
/* 5 intermediate hubs, device), which */
--
2.20.1

--
Cheers,
Stephen Rothwell

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