[patch 2/6] x86, perf, cqm: Use proper data type

Thomas Gleixner
2015-05-19T00:00:54Z

[-- Attachment #1: x86-perf-cqm-use-proper-data-types.patch --]
[-- Type: text/plain, Size: 1493 bytes --]

int is really not a proper data type for a MSR. Use u32 to make it
clear that we are dealing with a 32bit unsigned hardware value.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/cpu/perf_event_intel_cqm.c | 4 ++--
include/linux/perf_event.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)

Index: linux/arch/x86/kernel/cpu/perf_event_intel_cqm.c
===================================================================
--- linux.orig/arch/x86/kernel/cpu/perf_event_intel_cqm.c
+++ linux/arch/x86/kernel/cpu/perf_event_intel_cqm.c
@@ -18,7 +18,7 @@ static unsigned int cqm_l3_scale; /* sup

struct intel_cqm_state {
raw_spinlock_t lock;
- int rmid;
+ u32 rmid;
int cnt;
};

@@ -962,7 +962,7 @@ out:
static void intel_cqm_event_start(struct perf_event *event, int mode)
{
struct intel_cqm_state *state = this_cpu_ptr(&cqm_state);
- unsigned int rmid = event->hw.cqm_rmid;
+ u32 rmid = event->hw.cqm_rmid;
unsigned long flags;

if (!(event->hw.cqm_state & PERF_HES_STOPPED))
Index: linux/include/linux/perf_event.h
===================================================================
--- linux.orig/include/linux/perf_event.h
+++ linux/include/linux/perf_event.h
@@ -124,7 +124,7 @@ struct hw_perf_event {
};
struct { /* intel_cqm */
int cqm_state;
- int cqm_rmid;
+ u32 cqm_rmid;
struct list_head cqm_events_entry;
struct list_head cqm_groups_entry;
struct list_head cqm_group_entry;