linux/drivers/s390/crypto/ap_card.c
Joe Perches c828a89203 treewide: Use DEVICE_ATTR_RO
Convert DEVICE_ATTR uses to DEVICE_ATTR_RO where possible.

Done with perl script:

$ git grep -w --name-only DEVICE_ATTR | \
  xargs perl -i -e 'local $/; while (<>) { s/\bDEVICE_ATTR\s*\(\s*(\w+)\s*,\s*\(?(?:\s*S_IRUGO\s*|\s*0444\s*)\)?\s*,\s*\1_show\s*,\s*NULL\s*\)/DEVICE_ATTR_RO(\1)/g; print;}'

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Sagi Grimberg <sagi@grimberg.me>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-01-09 16:34:34 +01:00

193 lines
4.6 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright IBM Corp. 2016
* Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>
*
* Adjunct processor bus, card related code.
*/
#define KMSG_COMPONENT "ap"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/init.h>
#include <linux/slab.h>
#include <asm/facility.h>
#include "ap_bus.h"
#include "ap_asm.h"
/*
* AP card related attributes.
*/
static ssize_t ap_hwtype_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ap_card *ac = to_ap_card(dev);
return snprintf(buf, PAGE_SIZE, "%d\n", ac->ap_dev.device_type);
}
static DEVICE_ATTR(hwtype, 0444, ap_hwtype_show, NULL);
static ssize_t ap_raw_hwtype_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ap_card *ac = to_ap_card(dev);
return snprintf(buf, PAGE_SIZE, "%d\n", ac->raw_hwtype);
}
static DEVICE_ATTR(raw_hwtype, 0444, ap_raw_hwtype_show, NULL);
static ssize_t ap_depth_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct ap_card *ac = to_ap_card(dev);
return snprintf(buf, PAGE_SIZE, "%d\n", ac->queue_depth);
}
static DEVICE_ATTR(depth, 0444, ap_depth_show, NULL);
static ssize_t ap_functions_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ap_card *ac = to_ap_card(dev);
return snprintf(buf, PAGE_SIZE, "0x%08X\n", ac->functions);
}
static DEVICE_ATTR_RO(ap_functions);
static ssize_t ap_req_count_show(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct ap_card *ac = to_ap_card(dev);
unsigned int req_cnt;
req_cnt = 0;
spin_lock_bh(&ap_list_lock);
req_cnt = atomic_read(&ac->total_request_count);
spin_unlock_bh(&ap_list_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", req_cnt);
}
static ssize_t ap_req_count_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct ap_card *ac = to_ap_card(dev);
struct ap_queue *aq;
spin_lock_bh(&ap_list_lock);
for_each_ap_queue(aq, ac)
aq->total_request_count = 0;
spin_unlock_bh(&ap_list_lock);
atomic_set(&ac->total_request_count, 0);
return count;
}
static DEVICE_ATTR(request_count, 0644, ap_req_count_show, ap_req_count_store);
static ssize_t ap_requestq_count_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ap_card *ac = to_ap_card(dev);
struct ap_queue *aq;
unsigned int reqq_cnt;
reqq_cnt = 0;
spin_lock_bh(&ap_list_lock);
for_each_ap_queue(aq, ac)
reqq_cnt += aq->requestq_count;
spin_unlock_bh(&ap_list_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", reqq_cnt);
}
static DEVICE_ATTR(requestq_count, 0444, ap_requestq_count_show, NULL);
static ssize_t ap_pendingq_count_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ap_card *ac = to_ap_card(dev);
struct ap_queue *aq;
unsigned int penq_cnt;
penq_cnt = 0;
spin_lock_bh(&ap_list_lock);
for_each_ap_queue(aq, ac)
penq_cnt += aq->pendingq_count;
spin_unlock_bh(&ap_list_lock);
return snprintf(buf, PAGE_SIZE, "%d\n", penq_cnt);
}
static DEVICE_ATTR(pendingq_count, 0444, ap_pendingq_count_show, NULL);
static ssize_t ap_modalias_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "ap:t%02X\n", to_ap_dev(dev)->device_type);
}
static DEVICE_ATTR(modalias, 0444, ap_modalias_show, NULL);
static struct attribute *ap_card_dev_attrs[] = {
&dev_attr_hwtype.attr,
&dev_attr_raw_hwtype.attr,
&dev_attr_depth.attr,
&dev_attr_ap_functions.attr,
&dev_attr_request_count.attr,
&dev_attr_requestq_count.attr,
&dev_attr_pendingq_count.attr,
&dev_attr_modalias.attr,
NULL
};
static struct attribute_group ap_card_dev_attr_group = {
.attrs = ap_card_dev_attrs
};
static const struct attribute_group *ap_card_dev_attr_groups[] = {
&ap_card_dev_attr_group,
NULL
};
static struct device_type ap_card_type = {
.name = "ap_card",
.groups = ap_card_dev_attr_groups,
};
static void ap_card_device_release(struct device *dev)
{
struct ap_card *ac = to_ap_card(dev);
if (!list_empty(&ac->list)) {
spin_lock_bh(&ap_list_lock);
list_del_init(&ac->list);
spin_unlock_bh(&ap_list_lock);
}
kfree(ac);
}
struct ap_card *ap_card_create(int id, int queue_depth, int raw_type,
int comp_type, unsigned int functions)
{
struct ap_card *ac;
ac = kzalloc(sizeof(*ac), GFP_KERNEL);
if (!ac)
return NULL;
INIT_LIST_HEAD(&ac->list);
INIT_LIST_HEAD(&ac->queues);
ac->ap_dev.device.release = ap_card_device_release;
ac->ap_dev.device.type = &ap_card_type;
ac->ap_dev.device_type = comp_type;
ac->raw_hwtype = raw_type;
ac->queue_depth = queue_depth;
ac->functions = functions;
ac->id = id;
return ac;
}