Thread (6 messages) 6 messages, 2 authors, 2019-11-08
STALE2395d

[PATCH 3/3] arch: sembuf.h: make uapi asm/sembuf.h self-contained

From: Masahiro Yamada <hidden>
Date: 2019-10-30 06:40:03
Also in: linux-arch, linux-mips, linux-s390, lkml, sparclinux
Subsystem: generic include/asm header files, kernel build + files below scripts/ (unless maintained elsewhere), linux for powerpc (32-bit and 64-bit), mips, parisc architecture, sparc + ultrasparc (sparc/sparc64), tensilica xtensa port (xtensa), the rest, x86 architecture (32-bit and 64-bit) · Maintainers: Arnd Bergmann, Nathan Chancellor, Nicolas Schier, Madhavan Srinivasan, Michael Ellerman, Thomas Bogendoerfer, "James E.J. Bottomley", Helge Deller, "David S. Miller", Andreas Larsson, Chris Zankel, Max Filippov, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen

The user-space cannot compile <asm/sembuf.h> due to some missing type
definitions. For example, building it for x86 fails as follows:

  CC      usr/include/asm/sembuf.h.s
In file included from <command-line>:32:0:
./usr/include/asm/sembuf.h:17:20: error: field ‘sem_perm’ has incomplete type
  struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
                    ^~~~~~~~
./usr/include/asm/sembuf.h:24:2: error: unknown type name ‘__kernel_time_t’
  __kernel_time_t sem_otime; /* last semop time */
  ^~~~~~~~~~~~~~~
./usr/include/asm/sembuf.h:25:2: error: unknown type name ‘__kernel_ulong_t’
  __kernel_ulong_t __unused1;
  ^~~~~~~~~~~~~~~~
./usr/include/asm/sembuf.h:26:2: error: unknown type name ‘__kernel_time_t’
  __kernel_time_t sem_ctime; /* last change time */
  ^~~~~~~~~~~~~~~
./usr/include/asm/sembuf.h:27:2: error: unknown type name ‘__kernel_ulong_t’
  __kernel_ulong_t __unused2;
  ^~~~~~~~~~~~~~~~
./usr/include/asm/sembuf.h:29:2: error: unknown type name ‘__kernel_ulong_t’
  __kernel_ulong_t sem_nsems; /* no. of semaphores in array */
  ^~~~~~~~~~~~~~~~
./usr/include/asm/sembuf.h:30:2: error: unknown type name ‘__kernel_ulong_t’
  __kernel_ulong_t __unused3;
  ^~~~~~~~~~~~~~~~
./usr/include/asm/sembuf.h:31:2: error: unknown type name ‘__kernel_ulong_t’
  __kernel_ulong_t __unused4;
  ^~~~~~~~~~~~~~~~

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.

Signed-off-by: Masahiro Yamada <redacted>
---

 arch/mips/include/uapi/asm/sembuf.h    | 2 ++
 arch/parisc/include/uapi/asm/sembuf.h  | 1 +
 arch/powerpc/include/uapi/asm/sembuf.h | 2 ++
 arch/sparc/include/uapi/asm/sembuf.h   | 2 ++
 arch/x86/include/uapi/asm/sembuf.h     | 2 ++
 arch/xtensa/include/uapi/asm/sembuf.h  | 1 +
 include/uapi/asm-generic/sembuf.h      | 1 +
 usr/include/Makefile                   | 1 -
 8 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/mips/include/uapi/asm/sembuf.h b/arch/mips/include/uapi/asm/sembuf.h
index 60c89e6cb25b..7d135b93bebd 100644
--- a/arch/mips/include/uapi/asm/sembuf.h
+++ b/arch/mips/include/uapi/asm/sembuf.h
@@ -2,6 +2,8 @@
 #ifndef _ASM_SEMBUF_H
 #define _ASM_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for the MIPS architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/parisc/include/uapi/asm/sembuf.h b/arch/parisc/include/uapi/asm/sembuf.h
index 3c31163b1241..b17a2460b184 100644
--- a/arch/parisc/include/uapi/asm/sembuf.h
+++ b/arch/parisc/include/uapi/asm/sembuf.h
@@ -3,6 +3,7 @@
 #define _PARISC_SEMBUF_H
 
 #include <asm/bitsperlong.h>
+#include <asm/ipcbuf.h>
 
 /* 
  * The semid64_ds structure for parisc architecture.
diff --git a/arch/powerpc/include/uapi/asm/sembuf.h b/arch/powerpc/include/uapi/asm/sembuf.h
index 3f60946f77e3..f42c9c3502c7 100644
--- a/arch/powerpc/include/uapi/asm/sembuf.h
+++ b/arch/powerpc/include/uapi/asm/sembuf.h
@@ -2,6 +2,8 @@
 #ifndef _ASM_POWERPC_SEMBUF_H
 #define _ASM_POWERPC_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
diff --git a/arch/sparc/include/uapi/asm/sembuf.h b/arch/sparc/include/uapi/asm/sembuf.h
index f3d309c2e1cd..5d7764cdf80f 100644
--- a/arch/sparc/include/uapi/asm/sembuf.h
+++ b/arch/sparc/include/uapi/asm/sembuf.h
@@ -2,6 +2,8 @@
 #ifndef _SPARC_SEMBUF_H
 #define _SPARC_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for sparc architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/x86/include/uapi/asm/sembuf.h b/arch/x86/include/uapi/asm/sembuf.h
index 89de6cd9f0a7..da0464af7aa6 100644
--- a/arch/x86/include/uapi/asm/sembuf.h
+++ b/arch/x86/include/uapi/asm/sembuf.h
@@ -2,6 +2,8 @@
 #ifndef _ASM_X86_SEMBUF_H
 #define _ASM_X86_SEMBUF_H
 
+#include <asm/ipcbuf.h>
+
 /*
  * The semid64_ds structure for x86 architecture.
  * Note extra padding because this structure is passed back and forth
diff --git a/arch/xtensa/include/uapi/asm/sembuf.h b/arch/xtensa/include/uapi/asm/sembuf.h
index 09f348d643f1..3b9cdd406dfe 100644
--- a/arch/xtensa/include/uapi/asm/sembuf.h
+++ b/arch/xtensa/include/uapi/asm/sembuf.h
@@ -22,6 +22,7 @@
 #define _XTENSA_SEMBUF_H
 
 #include <asm/byteorder.h>
+#include <asm/ipcbuf.h>
 
 struct semid64_ds {
 	struct ipc64_perm sem_perm;		/* permissions .. see ipc.h */
diff --git a/include/uapi/asm-generic/sembuf.h b/include/uapi/asm-generic/sembuf.h
index 0bae010f1b64..5807fcd643ba 100644
--- a/include/uapi/asm-generic/sembuf.h
+++ b/include/uapi/asm-generic/sembuf.h
@@ -3,6 +3,7 @@
 #define __ASM_GENERIC_SEMBUF_H
 
 #include <asm/bitsperlong.h>
+#include <asm/ipcbuf.h>
 
 /*
  * The semid64_ds structure for x86 architecture.
diff --git a/usr/include/Makefile b/usr/include/Makefile
index 099d7401aa23..107d04bd5ee3 100644
--- a/usr/include/Makefile
+++ b/usr/include/Makefile
@@ -16,7 +16,6 @@ override c_flags = $(UAPI_CFLAGS) -Wp,-MD,$(depfile) -I$(objtree)/usr/include
 # Please consider to fix the header first.
 #
 # Sorted alphabetically.
-header-test- += asm/sembuf.h
 header-test- += asm/shmbuf.h
 header-test- += asm/signal.h
 header-test- += asm/ucontext.h
-- 
2.17.1
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