include/uapi/linux/socket.h: include sys/socket.h in userspace

This libc header has sockaddr definition for userspace.
Fixes compilation errors like:
error: field ‘ifru_addr’ has incomplete type
struct sockaddr ifru_addr;

Signed-off-by: Mikko Rapeli <redacted>
---
 include/uapi/linux/socket.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/uapi/linux/socket.h b/include/uapi/linux/socket.h
index 76ab0c6..8a81197 100644
--- a/include/uapi/linux/socket.h
+++ b/include/uapi/linux/socket.h

@@ -1,6 +1,10 @@
 #ifndef _UAPI_LINUX_SOCKET_H
 #define _UAPI_LINUX_SOCKET_H
 
+#ifndef __KERNEL__
+#include <sys/socket.h>
+#endif
+
 /*
  * Desired design of maximum size and alignment (see RFC2553)
  */

-- 
2.1.4

On Tuesday 17 February 2015 00:05:40 Mikko Rapeli wrote:

This libc header has sockaddr definition for userspace.
Fixes compilation errors like:
error: field ‘ifru_addr’ has incomplete type
struct sockaddr ifru_addr;

Signed-off-by: Mikko Rapeli <redacted>
---
 include/uapi/linux/socket.h | 4 ++++
 1 file changed, 4 insertions(+)

This looks wrong: where do you see a use of ifru_addr
in uapi/linux/socket.h?

	Arnd

On Tue, Feb 17, 2015 at 10:14:10AM +0100, Arnd Bergmann wrote:

On Tuesday 17 February 2015 00:05:40 Mikko Rapeli wrote:

quoted

This libc header has sockaddr definition for userspace.
Fixes compilation errors like:
error: field ‘ifru_addr’ has incomplete type
struct sockaddr ifru_addr;

Signed-off-by: Mikko Rapeli <redacted>
---
 include/uapi/linux/socket.h | 4 ++++
 1 file changed, 4 insertions(+)

This looks wrong: where do you see a use of ifru_addr
in uapi/linux/socket.h?

Indeed, this one seems completely wrong. Based on the test logs the
change should have gone to linux/if.h.

-Mikko

On Wed, Mar 11, 2015 at 02:38:15AM +0200, Mikko Rapeli wrote:

On Tue, Feb 17, 2015 at 10:14:10AM +0100, Arnd Bergmann wrote:

quoted

On Tuesday 17 February 2015 00:05:40 Mikko Rapeli wrote:

quoted

This libc header has sockaddr definition for userspace.
Fixes compilation errors like:
error: field ‘ifru_addr’ has incomplete type
struct sockaddr ifru_addr;

Signed-off-by: Mikko Rapeli <redacted>
---
 include/uapi/linux/socket.h | 4 ++++
 1 file changed, 4 insertions(+)

This looks wrong: where do you see a use of ifru_addr
in uapi/linux/socket.h?

Indeed, this one seems completely wrong. Based on the test logs the
change should have gone to linux/if.h.

Hmm, turns out this was not so straight forward. If I drop this I get 20
more errors from headers which include linux/socket.h and expect sockaddr
to be defined which is not true since it comes from sys/socket.h.

One way to fix this for all linux/socket.h users is to include sys/socket.h
already in linux/socket.h. After this I get rid of all compile test errors from
missing sockaddr definitions except cases where headers fail to include even
linux/socket.h.

Other option would be to include sys/socket.h in all headers using sockaddr.

I would prefer to include sys/socket.h already in linux/socket.h but I will
improve the commit message with this detail.

-Mikko