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ACPI: delete obsolete "bus master activity" proc field 

Linux-2.6.29 deleted the legacy ACPI idle handler, leaving
the CPU_IDLE handler, which does not track bus master activity.

So delete the unused bm_activity field -- it is confusing to
print an always zero value.

This patch could break programs that parse
/proc/acpi/processor/*/power, since it deletes this
line from that file:

bus master activity:     00000000

http://bugzilla.kernel.org/show_bug.cgi?id=13145
is not fixed by this patch, but provoked this patch.

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Len Brown 2009-04-22 19:28:15 -04:00
parent a71e4917dc
commit 9261461077
2 changed files with 1 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/acpi/processor_idle.c
View File

@ -662,11 +662,9 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset)
seq_printf(seq, "active state: C%zd\n"
"max_cstate: C%d\n"
"bus master activity: %08x\n"
"maximum allowed latency: %d usec\n",
pr->power.state ? pr->power.state - pr->power.states : 0,
max_cstate, (unsigned)pr->power.bm_activity,
pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY));
max_cstate, pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY));
seq_puts(seq, "states:\n");

1
include/acpi/processor.h
View File

@ -84,7 +84,6 @@ struct acpi_processor_power {
struct acpi_processor_cx *state;
unsigned long bm_check_timestamp;
u32 default_state;
u32 bm_activity;
int count;
struct acpi_processor_cx states[ACPI_PROCESSOR_MAX_POWER];
int timer_broadcast_on_state;