On Fri, 27 Mar 2009 21:15:23 -0400 (EDT) Len Brown <lenb@xxxxxxxxxx> wrote: > > When cpufreq driver call acpi_processor_preregister_performance() , function > > will clean up pr->performance even if there is possibly already registered > > other cpufreq driver. The patch fix this potential problem. It also remove > > double checks in P domain basic validity code and move these checks to function > > where _PSD data is captured. > > > > Signed-off-by: Stanislaw Gruszka <sgruszka@xxxxxxxxxx> > > --- > > drivers/acpi/processor_perflib.c | 46 +++++++++++++++++-------------------- > > 1 files changed, 21 insertions(+), 25 deletions(-) > > > > What failure symptom does the user see before this patch is applied? > Does it merit backporting to .stable? Nothing destructive, kernel ignore P-states limit requested by BIOS using ACPI _PPC . I think this patch is not so good candidate for backporting. Cheers Stanislaw Gruszka -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
