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Subject[PATCH V6 4/7] perf/amd/iommu: Declare pr_fmt and remove unnecessary pr_debug
Date
This patch declare pr_fmt for perf/amd_iommu and remove unnecessary
pr_debug.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
---
arch/x86/events/amd/iommu.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/x86/events/amd/iommu.c b/arch/x86/events/amd/iommu.c
index 9744dc8..9bff41d 100644
--- a/arch/x86/events/amd/iommu.c
+++ b/arch/x86/events/amd/iommu.c
@@ -11,6 +11,8 @@
* published by the Free Software Foundation.
*/

+#define pr_fmt(fmt) "perf/amd_iommu: " fmt
+
#include <linux/perf_event.h>
#include <linux/init.h>
#include <linux/cpumask.h>
@@ -288,7 +290,6 @@ static void perf_iommu_start(struct perf_event *event, int flags)
u64 val;
struct hw_perf_event *hwc = &event->hw;

- pr_debug("perf: amd_iommu:perf_iommu_start\n");
if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED)))
return;

@@ -312,7 +313,6 @@ static void perf_iommu_read(struct perf_event *event)
u64 cnt, prev;
s64 delta;
struct hw_perf_event *hwc = &event->hw;
- pr_debug("perf: amd_iommu:perf_iommu_read\n");

if (amd_iommu_pc_get_counter(0, _GET_BANK(event), _GET_CNTR(event), &cnt))
return;
@@ -339,8 +339,6 @@ static void perf_iommu_stop(struct perf_event *event, int flags)
struct hw_perf_event *hwc = &event->hw;
u64 config;

- pr_debug("perf: amd_iommu:perf_iommu_stop\n");
-
if (hwc->state & PERF_HES_UPTODATE)
return;

@@ -362,7 +360,6 @@ static int perf_iommu_add(struct perf_event *event, int flags)
struct perf_amd_iommu *perf_iommu =
container_of(event->pmu, struct perf_amd_iommu, pmu);

- pr_debug("perf: amd_iommu:perf_iommu_add\n");
event->hw.state = PERF_HES_UPTODATE | PERF_HES_STOPPED;

/* request an iommu bank/counter */
@@ -383,7 +380,6 @@ static void perf_iommu_del(struct perf_event *event, int flags)
struct perf_amd_iommu *perf_iommu =
container_of(event->pmu, struct perf_amd_iommu, pmu);

- pr_debug("perf: amd_iommu:perf_iommu_del\n");
perf_iommu_stop(event, PERF_EF_UPDATE);

/* clear the assigned iommu bank/counter */
@@ -443,7 +439,7 @@ static __init int _init_perf_amd_iommu(

/* Init events attributes */
if (_init_events_attrs(perf_iommu) != 0)
- pr_err("perf: amd_iommu: Only support raw events.\n");
+ pr_err("Only support raw events.\n");

perf_iommu->max_banks = amd_iommu_pc_get_max_banks(0);
perf_iommu->max_counters = amd_iommu_pc_get_max_counters(0);
@@ -456,7 +452,7 @@ static __init int _init_perf_amd_iommu(

ret = perf_pmu_register(&perf_iommu->pmu, name, -1);
if (ret) {
- pr_err("perf: amd_iommu: Failed to initialized.\n");
+ pr_err("Error initializing AMD IOMMU perf counters.\n");
amd_iommu_pc_exit();
} else {
pr_info("perf: amd_iommu: Detected. (%d banks, %d counters/bank)\n",
--
1.8.3.1
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