On Thu, Apr 19, 2018 at 04:37:24PM +0200, Arnd Bergmann wrote:

The s390 msgbuf/sembuf/shmbuf header files are all identical to the
version from asm-generic.

This patch removes the files and replaces them with 'generic-y'
statements, to avoid having to modify each copy when we extend sysvipc
to deal with 64-bit time_t in 32-bit user space.

Note that unlike alpha and ia64, the ipcbuf.h header file is slightly
different here, so I'm leaving the private copy.

To deal with 32-bit compat tasks, we also have to adapt the definitions
of compat_{shm,sem,msg}id_ds to match the changes to the respective
asm-generic files.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/s390/include/asm/compat.h      | 32 ++++++++++++------------
 arch/s390/include/uapi/asm/Kbuild   |  3 +++
 arch/s390/include/uapi/asm/msgbuf.h | 38 ----------------------------
 arch/s390/include/uapi/asm/sembuf.h | 30 -----------------------
 arch/s390/include/uapi/asm/shmbuf.h | 49 -------------------------------------
 5 files changed, 19 insertions(+), 133 deletions(-)
 delete mode 100644 arch/s390/include/uapi/asm/msgbuf.h
 delete mode 100644 arch/s390/include/uapi/asm/sembuf.h
 delete mode 100644 arch/s390/include/uapi/asm/shmbuf.h

FWIW,

Acked-by: Heiko Carstens <redacted>