parisc: Fixes and cleanups in kernel uapi header files

This patch fixes some bugs and partly cleans up the parisc uapi header
files to what glibc defined:
- compat_semid64_ds was wrong and did not take the endianess into
  account
- ipc64_perm exported userspace types which broke building userspace
  packages on debian (e.g. trinity)
- ipc64_perm needs to use a 32bit mode_t on 64bit kernel
- msqid64_ds and semid64_ds needs unsigned longs for various struct members
- shmid64_ds exported size_t instead of __kernel_size_t

And finally add some compile-time checks for the sizes of those structs
to avoid future breakage.

Runtime-tested with the Linux Test Project (LTP) testsuite.

Cc: <stable@vger.kernel.org> # 3.18+
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h
index 94710cf..0448a2c 100644 (file)
--- a/arch/parisc/include/asm/compat.h
+++ b/arch/parisc/include/asm/compat.h
@@ -206,10 +206,10 @@ struct compat_ipc64_perm {
 
 struct compat_semid64_ds {
        struct compat_ipc64_perm sem_perm;
-       compat_time_t sem_otime;
        unsigned int __unused1;
-       compat_time_t sem_ctime;
+       compat_time_t sem_otime;
        unsigned int __unused2;
+       compat_time_t sem_ctime;
        compat_ulong_t sem_nsems;
        compat_ulong_t __unused3;
        compat_ulong_t __unused4;

diff --git a/arch/parisc/include/uapi/asm/ipcbuf.h b/arch/parisc/include/uapi/asm/ipcbuf.h
index bd956c4..790c411 100644 (file)
--- a/arch/parisc/include/uapi/asm/ipcbuf.h
+++ b/arch/parisc/include/uapi/asm/ipcbuf.h
@@ -1,6 +1,9 @@
 #ifndef __PARISC_IPCBUF_H__
 #define __PARISC_IPCBUF_H__
 
+#include <asm/bitsperlong.h>
+#include <linux/posix_types.h>
+
 /*
  * The ipc64_perm structure for PA-RISC is almost identical to
  * kern_ipc_perm as we have always had 32-bit UIDs and GIDs in the kernel.
@@ -10,16 +13,18 @@
 
 struct ipc64_perm
 {
-       key_t           key;
-       uid_t           uid;
-       gid_t           gid;
-       uid_t           cuid;
-       gid_t           cgid;
+       __kernel_key_t          key;
+       __kernel_uid_t          uid;
+       __kernel_gid_t          gid;
+       __kernel_uid_t          cuid;
+       __kernel_gid_t          cgid;
+#if __BITS_PER_LONG != 64
        unsigned short int      __pad1;
-       mode_t          mode;
+#endif
+       __kernel_mode_t         mode;
        unsigned short int      __pad2;
        unsigned short int      seq;
-       unsigned int    __pad3;
+       unsigned int            __pad3;
        unsigned long long int __unused1;
        unsigned long long int __unused2;
 };

diff --git a/arch/parisc/include/uapi/asm/msgbuf.h b/arch/parisc/include/uapi/asm/msgbuf.h
index 3421389..2e83ac7 100644 (file)
--- a/arch/parisc/include/uapi/asm/msgbuf.h
+++ b/arch/parisc/include/uapi/asm/msgbuf.h
@@ -27,13 +27,13 @@ struct msqid64_ds {
        unsigned int   __pad3;
 #endif
        __kernel_time_t msg_ctime;      /* last change time */
-       unsigned int  msg_cbytes;       /* current number of bytes on queue */
-       unsigned int  msg_qnum; /* number of messages in queue */
-       unsigned int  msg_qbytes;       /* max number of bytes on queue */
+       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 int  __unused1;
-       unsigned int  __unused2;
+       unsigned long __unused1;
+       unsigned long __unused2;
 };
 
 #endif /* _PARISC_MSGBUF_H */

diff --git a/arch/parisc/include/uapi/asm/posix_types.h b/arch/parisc/include/uapi/asm/posix_types.h
index b934425..f3b5f70 100644 (file)
--- a/arch/parisc/include/uapi/asm/posix_types.h
+++ b/arch/parisc/include/uapi/asm/posix_types.h
@@ -7,8 +7,10 @@
  * assume GCC is being used.
  */
 
+#ifndef __LP64__
 typedef unsigned short         __kernel_mode_t;
 #define __kernel_mode_t __kernel_mode_t
+#endif
 
 typedef unsigned short         __kernel_ipc_pid_t;
 #define __kernel_ipc_pid_t __kernel_ipc_pid_t

diff --git a/arch/parisc/include/uapi/asm/sembuf.h b/arch/parisc/include/uapi/asm/sembuf.h
index f01d89e..c20971b 100644 (file)
--- a/arch/parisc/include/uapi/asm/sembuf.h
+++ b/arch/parisc/include/uapi/asm/sembuf.h
@@ -23,9 +23,9 @@ struct semid64_ds {
        unsigned int    __pad2;
 #endif
        __kernel_time_t sem_ctime;              /* last change time */
-       unsigned int    sem_nsems;              /* no. of semaphores in array */
-       unsigned int    __unused1;
-       unsigned int    __unused2;
+       unsigned long   sem_nsems;              /* no. of semaphores in array */
+       unsigned long   __unused1;
+       unsigned long   __unused2;
 };
 
 #endif /* _PARISC_SEMBUF_H */

diff --git a/arch/parisc/include/uapi/asm/shmbuf.h b/arch/parisc/include/uapi/asm/shmbuf.h
index 8496c38..750e13e 100644 (file)
--- a/arch/parisc/include/uapi/asm/shmbuf.h
+++ b/arch/parisc/include/uapi/asm/shmbuf.h
@@ -30,12 +30,12 @@ struct shmid64_ds {
 #if __BITS_PER_LONG != 64
        unsigned int            __pad4;
 #endif
-       size_t                  shm_segsz;      /* size of segment (bytes) */
+       __kernel_size_t         shm_segsz;      /* size of segment (bytes) */
        __kernel_pid_t          shm_cpid;       /* pid of creator */
        __kernel_pid_t          shm_lpid;       /* pid of last operator */
-       unsigned int            shm_nattch;     /* no. of current attaches */
-       unsigned int            __unused1;
-       unsigned int            __unused2;
+       unsigned long           shm_nattch;     /* no. of current attaches */
+       unsigned long           __unused1;
+       unsigned long           __unused2;
 };
 
 struct shminfo64 {

diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index c229427..c5fec48 100644 (file)
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -23,6 +23,7 @@
 #include <linux/unistd.h>
 #include <linux/nodemask.h>    /* for node_online_map */
 #include <linux/pagemap.h>     /* for release_pages and page_cache_release */
+#include <linux/compat.h>
 
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
@@ -30,6 +31,7 @@
 #include <asm/pdc_chassis.h>
 #include <asm/mmzone.h>
 #include <asm/sections.h>
+#include <asm/msgbuf.h>
 
 extern int  data_start;
 extern void parisc_kernel_start(void); /* Kernel entry point in head.S */
@@ -590,6 +592,20 @@ unsigned long pcxl_dma_start __read_mostly;
 
 void __init mem_init(void)
 {
+       /* Do sanity checks on IPC (compat) structures */
+       BUILD_BUG_ON(sizeof(struct ipc64_perm) != 48);
+#ifndef CONFIG_64BIT
+       BUILD_BUG_ON(sizeof(struct semid64_ds) != 80);
+       BUILD_BUG_ON(sizeof(struct msqid64_ds) != 104);
+       BUILD_BUG_ON(sizeof(struct shmid64_ds) != 104);
+#endif
+#ifdef CONFIG_COMPAT
+       BUILD_BUG_ON(sizeof(struct compat_ipc64_perm) != sizeof(struct ipc64_perm));
+       BUILD_BUG_ON(sizeof(struct compat_semid64_ds) != 80);
+       BUILD_BUG_ON(sizeof(struct compat_msqid64_ds) != 104);
+       BUILD_BUG_ON(sizeof(struct compat_shmid64_ds) != 104);
+#endif
+
        /* Do sanity checks on page table constants */
        BUILD_BUG_ON(PTE_ENTRY_SIZE != sizeof(pte_t));
        BUILD_BUG_ON(PMD_ENTRY_SIZE != sizeof(pmd_t));