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author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-07-06 17:58:19 +0200 |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-07-07 09:28:29 +0200 |
commit | f9c87a6f46d508eae0d9ae640be98d50f237f827 (patch) | |
tree | a4a519a2b0eed1908d1075a2caa05b75ac9110ba /drivers/cpuidle/cpuidle-calxeda.c | |
parent | a215c8fbde8600d133f122691d0f8c30de6dda02 (diff) | |
download | linux-f9c87a6f46d508eae0d9ae640be98d50f237f827.tar.gz |
s390/sclp: clear upper register halves in _sclp_print_early
If the kernel is compiled with gcc 5.1 and the XZ compression option the decompress_kernel function calls _sclp_print_early in 64-bit mode while the content of the upper register half of %r6 is non-zero. This causes a specification exception on the servc instruction in _sclp_servc. The _sclp_print_early function saves and restores the upper registers halves but it fails to clear them for the 31-bit code of the mini sclp driver. Cc: <stable@vger.kernel.org> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/cpuidle/cpuidle-calxeda.c')
0 files changed, 0 insertions, 0 deletions