linux_dsm_epyc7002/include/uapi/asm-generic/msgbuf.h
Masahiro Yamada 9ef0e00418 arch: msgbuf.h: make uapi asm/msgbuf.h self-contained
Userspace cannot compile <asm/msgbuf.h> due to some missing type
definitions.  For example, building it for x86 fails as follows:

    CC      usr/include/asm/msgbuf.h.s
  In file included from usr/include/asm/msgbuf.h:6:0,
                   from <command-line>:32:
  usr/include/asm-generic/msgbuf.h:25:20: error: field `msg_perm' has incomplete type
    struct ipc64_perm msg_perm;
                      ^~~~~~~~
  usr/include/asm-generic/msgbuf.h:27:2: error: unknown type name `__kernel_time_t'
    __kernel_time_t msg_stime; /* last msgsnd time */
    ^~~~~~~~~~~~~~~
  usr/include/asm-generic/msgbuf.h:28:2: error: unknown type name `__kernel_time_t'
    __kernel_time_t msg_rtime; /* last msgrcv time */
    ^~~~~~~~~~~~~~~
  usr/include/asm-generic/msgbuf.h:29:2: error: unknown type name `__kernel_time_t'
    __kernel_time_t msg_ctime; /* last change time */
    ^~~~~~~~~~~~~~~
  usr/include/asm-generic/msgbuf.h:41:2: error: unknown type name `__kernel_pid_t'
    __kernel_pid_t msg_lspid; /* pid of last msgsnd */
    ^~~~~~~~~~~~~~
  usr/include/asm-generic/msgbuf.h:42:2: error: unknown type name `__kernel_pid_t'
    __kernel_pid_t msg_lrpid; /* last receive pid */
    ^~~~~~~~~~~~~~

It is just a matter of missing include directive.

Include <asm/ipcbuf.h> to make it self-contained, and add it to
the compile-test coverage.

Link: http://lkml.kernel.org/r/20191030063855.9989-2-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2019-12-04 19:44:14 -08:00

50 lines
1.6 KiB
C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __ASM_GENERIC_MSGBUF_H
#define __ASM_GENERIC_MSGBUF_H
#include <asm/bitsperlong.h>
#include <asm/ipcbuf.h>
/*
* generic msqid64_ds structure.
*
* Note extra padding because this structure is passed back and forth
* between kernel and user space.
*
* msqid64_ds was originally meant to be architecture specific, but
* everyone just ended up making identical copies without specific
* optimizations, so we may just as well all use the same one.
*
* 64 bit architectures use a 64-bit long time field here, while
* 32 bit architectures have a pair of unsigned long values.
* On big-endian systems, the lower half is in the wrong place.
*
* Pad space is left for:
* - 2 miscellaneous 32-bit values
*/
struct msqid64_ds {
struct ipc64_perm msg_perm;
#if __BITS_PER_LONG == 64
long msg_stime; /* last msgsnd time */
long msg_rtime; /* last msgrcv time */
long msg_ctime; /* last change time */
#else
unsigned long msg_stime; /* last msgsnd time */
unsigned long msg_stime_high;
unsigned long msg_rtime; /* last msgrcv time */
unsigned long msg_rtime_high;
unsigned long msg_ctime; /* last change time */
unsigned long msg_ctime_high;
#endif
unsigned long msg_cbytes; /* current number of bytes on queue */
unsigned long msg_qnum; /* number of messages in queue */
unsigned long msg_qbytes; /* max number of bytes on queue */
__kernel_pid_t msg_lspid; /* pid of last msgsnd */
__kernel_pid_t msg_lrpid; /* last receive pid */
unsigned long __unused4;
unsigned long __unused5;
};
#endif /* __ASM_GENERIC_MSGBUF_H */