linux

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History

Michael Holzheu 576ebd7492 kernel: Fix s390 absolute memory access for /dev/mem

On s390 the prefix page and absolute zero pages are not correctly
returned when reading /dev/mem. The reason is that the s390 asm/io.h
file includes the asm-generic/io.h file which then defines
xlate_dev_mem_ptr() and therefore overwrites the s390 specific
version that does the correct swap operation for prefix and absolute
zero pages. The problem is a regression that was introduced with git
commit cd248341 (s390/pci: base support).

To fix the problem add "#ifndef xlate_dev_mem_ptr" in asm-generic/io.h
and "#define xlate_dev_mem_ptr" in asm/io.h. This ensures that the
s390 version is used. For completeness also add the "#ifndef"
construct for xlate_dev_kmem_ptr().

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2013-05-22 09:45:57 +02:00

appldata

s390/time: rename tod clock access functions

2013-02-14 15:55:10 +01:00

boot

s390: fix linker script for 31 bit builds

2012-10-18 17:50:10 +02:00

crypto

s390/crypto: Don't panic after crypto instruction failures

2012-11-23 11:14:27 +01:00

hypfs

aio: don't include aio.h in sched.h