From mboxrd@z Thu Jan  1 00:00:00 1970
From: Arnd Bergmann <arnd@arndb.de>
Date: Thu, 21 May 2020 15:11:49 +0200
Subject: [LTP] [PATCH 2/5] include: Add declaration of struct ipc64_perm
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On Thu, May 21, 2020 at 12:47 PM Viresh Kumar <viresh.kumar@linaro.org> wrote:
>
> This adds declaration of struct ipc64_perm, which will be used by
> following patches.
>
> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>

Like the other structures, there are multiple definitions in the kernel:

$ git grep ^struct.ipc64_perm
arch/parisc/include/uapi/asm/ipcbuf.h:struct ipc64_perm
arch/powerpc/include/uapi/asm/ipcbuf.h:struct ipc64_perm
arch/s390/include/uapi/asm/ipcbuf.h:struct ipc64_perm
arch/sparc/include/uapi/asm/ipcbuf.h:struct ipc64_perm
arch/xtensa/include/uapi/asm/ipcbuf.h:struct ipc64_perm
include/uapi/asm-generic/ipcbuf.h:struct ipc64_perm

Any reason you can't just #include <asm/ipcbuf.h> to get the
kernel's definition for the correct architecture?

        Arnd