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authorQi Liu <liuqi115@huawei.com>2021-03-19 11:04:32 +0100
committerWill Deacon <will@kernel.org>2021-03-25 13:55:44 +0100
commit9ec9f9cf8660d549c77e719d2ce11647a03063b9 (patch)
treef4def2ac65870f1b1afbb77057c353d7b45ed5d3 /drivers/perf
parentdrivers/perf: convert sysfs snprintf family to sysfs_emit (diff)
downloadlinux-9ec9f9cf8660d549c77e719d2ce11647a03063b9.tar.xz
linux-9ec9f9cf8660d549c77e719d2ce11647a03063b9.zip
drivers/perf: convert sysfs scnprintf family to sysfs_emit_at() and sysfs_emit()
Use the generic sysfs_emit_at() and sysfs_emit() function to take place of scnprintf() Signed-off-by: Qi Liu <liuqi115@huawei.com> Link: https://lore.kernel.org/r/1616148273-16374-3-git-send-email-liuqi115@huawei.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/perf')
-rw-r--r--drivers/perf/arm-ccn.c27
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/perf/arm-ccn.c b/drivers/perf/arm-ccn.c
index 3a2ddc0cc6c3..96d47cb302dd 100644
--- a/drivers/perf/arm-ccn.c
+++ b/drivers/perf/arm-ccn.c
@@ -326,43 +326,38 @@ static ssize_t arm_ccn_pmu_event_show(struct device *dev,
struct arm_ccn *ccn = pmu_to_arm_ccn(dev_get_drvdata(dev));
struct arm_ccn_pmu_event *event = container_of(attr,
struct arm_ccn_pmu_event, attr);
- ssize_t res;
+ int res;
- res = scnprintf(buf, PAGE_SIZE, "type=0x%x", event->type);
+ res = sysfs_emit(buf, "type=0x%x", event->type);
if (event->event)
- res += scnprintf(buf + res, PAGE_SIZE - res, ",event=0x%x",
- event->event);
+ res += sysfs_emit_at(buf, res, ",event=0x%x", event->event);
if (event->def)
- res += scnprintf(buf + res, PAGE_SIZE - res, ",%s",
- event->def);
+ res += sysfs_emit_at(buf, res, ",%s", event->def);
if (event->mask)
- res += scnprintf(buf + res, PAGE_SIZE - res, ",mask=0x%x",
- event->mask);
+ res += sysfs_emit_at(buf, res, ",mask=0x%x", event->mask);
/* Arguments required by an event */
switch (event->type) {
case CCN_TYPE_CYCLES:
break;
case CCN_TYPE_XP:
- res += scnprintf(buf + res, PAGE_SIZE - res,
- ",xp=?,vc=?");
+ res += sysfs_emit_at(buf, res, ",xp=?,vc=?");
if (event->event == CCN_EVENT_WATCHPOINT)
- res += scnprintf(buf + res, PAGE_SIZE - res,
+ res += sysfs_emit_at(buf, res,
",port=?,dir=?,cmp_l=?,cmp_h=?,mask=?");
else
- res += scnprintf(buf + res, PAGE_SIZE - res,
- ",bus=?");
+ res += sysfs_emit_at(buf, res, ",bus=?");
break;
case CCN_TYPE_MN:
- res += scnprintf(buf + res, PAGE_SIZE - res, ",node=%d", ccn->mn_id);
+ res += sysfs_emit_at(buf, res, ",node=%d", ccn->mn_id);
break;
default:
- res += scnprintf(buf + res, PAGE_SIZE - res, ",node=?");
+ res += sysfs_emit_at(buf, res, ",node=?");
break;
}
- res += scnprintf(buf + res, PAGE_SIZE - res, "\n");
+ res += sysfs_emit_at(buf, res, "\n");
return res;
}