The patch titled Subject: arch: ipcbuf.h: make uapi asm/ipcbuf.h self-contained has been added to the -mm tree. Its filename is arch-ipcbufh-make-uapi-asm-ipcbufh-self-contained.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/arch-ipcbufh-make-uapi-asm-ipcbufh-self-contained.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/arch-ipcbufh-make-uapi-asm-ipcbufh-self-contained.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> Subject: arch: ipcbuf.h: make uapi asm/ipcbuf.h self-contained Userspace cannot compile <asm/ipcbuf.h> due to some missing type definitions. For example, building it for x86 fails as follows: CC usr/include/asm/ipcbuf.h.s In file included from ./usr/include/asm/ipcbuf.h:1:0, from <command-line>:32: ./usr/include/asm-generic/ipcbuf.h:21:2: error: unknown type name `__kernel_key_t' __kernel_key_t key; ^~~~~~~~~~~~~~ ./usr/include/asm-generic/ipcbuf.h:22:2: error: unknown type name `__kernel_uid32_t' __kernel_uid32_t uid; ^~~~~~~~~~~~~~~~ ./usr/include/asm-generic/ipcbuf.h:23:2: error: unknown type name `__kernel_gid32_t' __kernel_gid32_t gid; ^~~~~~~~~~~~~~~~ ./usr/include/asm-generic/ipcbuf.h:24:2: error: unknown type name `__kernel_uid32_t' __kernel_uid32_t cuid; ^~~~~~~~~~~~~~~~ ./usr/include/asm-generic/ipcbuf.h:25:2: error: unknown type name `__kernel_gid32_t' __kernel_gid32_t cgid; ^~~~~~~~~~~~~~~~ ./usr/include/asm-generic/ipcbuf.h:26:2: error: unknown type name `__kernel_mode_t' __kernel_mode_t mode; ^~~~~~~~~~~~~~~ ./usr/include/asm-generic/ipcbuf.h:28:35: error: `__kernel_mode_t' undeclared here (not in a function) unsigned char __pad1[4 - sizeof(__kernel_mode_t)]; ^~~~~~~~~~~~~~~ ./usr/include/asm-generic/ipcbuf.h:31:2: error: unknown type name `__kernel_ulong_t' __kernel_ulong_t __unused1; ^~~~~~~~~~~~~~~~ ./usr/include/asm-generic/ipcbuf.h:32:2: error: unknown type name `__kernel_ulong_t' __kernel_ulong_t __unused2; ^~~~~~~~~~~~~~~~ It is just a matter of missing include directive. Include <asm/posix_types.h> to make it self-contained, and add it to the compile-test coverage. Link: http://lkml.kernel.org/r/20191030063855.9989-1-yamada.masahiro@xxxxxxxxxxxxx Signed-off-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/s390/include/uapi/asm/ipcbuf.h | 2 ++ arch/sparc/include/uapi/asm/ipcbuf.h | 2 ++ arch/xtensa/include/uapi/asm/ipcbuf.h | 2 ++ include/uapi/asm-generic/ipcbuf.h | 2 ++ usr/include/Makefile | 1 - 5 files changed, 8 insertions(+), 1 deletion(-) --- a/arch/s390/include/uapi/asm/ipcbuf.h~arch-ipcbufh-make-uapi-asm-ipcbufh-self-contained +++ a/arch/s390/include/uapi/asm/ipcbuf.h @@ -2,6 +2,8 @@ #ifndef __S390_IPCBUF_H__ #define __S390_IPCBUF_H__ +#include <linux/posix_types.h> + /* * The user_ipc_perm structure for S/390 architecture. * Note extra padding because this structure is passed back and forth --- a/arch/sparc/include/uapi/asm/ipcbuf.h~arch-ipcbufh-make-uapi-asm-ipcbufh-self-contained +++ a/arch/sparc/include/uapi/asm/ipcbuf.h @@ -2,6 +2,8 @@ #ifndef __SPARC_IPCBUF_H #define __SPARC_IPCBUF_H +#include <linux/posix_types.h> + /* * The ipc64_perm structure for sparc/sparc64 architecture. * Note extra padding because this structure is passed back and forth --- a/arch/xtensa/include/uapi/asm/ipcbuf.h~arch-ipcbufh-make-uapi-asm-ipcbufh-self-contained +++ a/arch/xtensa/include/uapi/asm/ipcbuf.h @@ -12,6 +12,8 @@ #ifndef _XTENSA_IPCBUF_H #define _XTENSA_IPCBUF_H +#include <linux/posix_types.h> + /* * Pad space is left for: * - 32-bit mode_t and seq --- a/include/uapi/asm-generic/ipcbuf.h~arch-ipcbufh-make-uapi-asm-ipcbufh-self-contained +++ a/include/uapi/asm-generic/ipcbuf.h @@ -2,6 +2,8 @@ #ifndef __ASM_GENERIC_IPCBUF_H #define __ASM_GENERIC_IPCBUF_H +#include <linux/posix_types.h> + /* * The generic ipc64_perm structure: * Note extra padding because this structure is passed back and forth --- a/usr/include/Makefile~arch-ipcbufh-make-uapi-asm-ipcbufh-self-contained +++ a/usr/include/Makefile @@ -16,7 +16,6 @@ override c_flags = $(UAPI_CFLAGS) -Wp,-M # Please consider to fix the header first. # # Sorted alphabetically. -header-test- += asm/ipcbuf.h header-test- += asm/msgbuf.h header-test- += asm/sembuf.h header-test- += asm/shmbuf.h _ Patches currently in -mm which might be from yamada.masahiro@xxxxxxxxxxxxx are arch-ipcbufh-make-uapi-asm-ipcbufh-self-contained.patch arch-msgbufh-make-uapi-asm-msgbufh-self-contained.patch arch-sembufh-make-uapi-asm-sembufh-self-contained.patch