[PATCH] s390: cio non-unique path group ids

From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>

The path grouping can fail due to non-unique pathgroup-IDs.  The source for
the CPU-ID part of the ID was incorrectly specified on 64 bit systems.
Additionally, the length of the ID was too large due to incorrect data packing
declaration.  Fix CPU-ID lowcore address and add missing packing declaration.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

2 files changed, 4 insertions, 4 deletions

diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 74a257b23383..e210f89a2449 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -45,11 +45,11 @@ struct pgid {
         union {
                 __u8 fc;        /* SPID function code */
                 struct path_state ps;   /* SNID path state */
-        } inf;
+        } __attribute__ ((packed)) inf;
         union {
                 __u32 cpu_addr  : 16;   /* CPU address */
                 struct extended_cssid ext_cssid;
-        } pgid_high;
+        } __attribute__ ((packed)) pgid_high;
         __u32 cpu_id    : 24;   /* CPU identification */
         __u32 cpu_model : 16;   /* CPU model */
         __u32 tod_high;         /* high word TOD clock */
diff --git a/include/asm-s390/lowcore.h b/include/asm-s390/lowcore.h
index db0606c1abd4..bea727904287 100644
--- a/include/asm-s390/lowcore.h
+++ b/include/asm-s390/lowcore.h
@@ -98,8 +98,8 @@
 #define __LC_KERNEL_ASCE                0xD58
 #define __LC_USER_ASCE                  0xD60
 #define __LC_PANIC_STACK                0xD68
-#define __LC_CPUID                      0xD90
-#define __LC_CPUADDR                    0xD98
+#define __LC_CPUID                      0xD80
+#define __LC_CPUADDR                    0xD88
 #define __LC_IPLDEV                     0xDB8
 #define __LC_JIFFY_TIMER                0xDC0
 #define __LC_CURRENT                    0xDD8