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| author | Andreas Herrmann <andreas.herrmann3@amd.com> | 2012-01-06 15:57:55 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-13 11:17:04 -0800 |
| commit | 8f44619e1e633884c5f0bfcf6ae05d7b0304cca3 (patch) | |
| tree | 1629c45babfba71875df5641dbf839f66bdbe02e /block/blk-core.c | |
| parent | af2ff521425c83a3043af8a600b62d32443031dd (diff) | |
powernow-k8: Fix indexing issue
commit a8eb28480e9b637cc78b9aa5e08612ba97e1317a upstream.
The driver uses the pstate number from the status register as index in
its table of ACPI pstates (powernow_table). This is wrong as this is
not a 1-to-1 mapping.
For example we can have _PSS information to just utilize Pstate 0 and
Pstate 4, ie.
powernow-k8: Core Performance Boosting: on.
powernow-k8: 0 : pstate 0 (2200 MHz)
powernow-k8: 1 : pstate 4 (1400 MHz)
In this example the driver's powernow_table has just 2 entries. Using
the pstate number (4) as index into this table is just plain wrong.
Signed-off-by: Andreas Herrmann <andreas.herrmann3@amd.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block/blk-core.c')
0 files changed, 0 insertions, 0 deletions