Release 4.17 drivers/dca/dca-sysfs.c
/*
* Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc., 59
* Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* The full GNU General Public License is included in this distribution in the
* file called COPYING.
*/
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/device.h>
#include <linux/idr.h>
#include <linux/kdev_t.h>
#include <linux/err.h>
#include <linux/dca.h>
#include <linux/gfp.h>
#include <linux/export.h>
static struct class *dca_class;
static struct idr dca_idr;
static spinlock_t dca_idr_lock;
int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot)
{
struct device *cd;
static int req_count;
cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), NULL,
"requester%d", req_count++);
if (IS_ERR(cd))
return PTR_ERR(cd);
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shannon Nelson | 60 | 85.71% | 1 | 20.00% |
| Maciej Sosnowski | 6 | 8.57% | 1 | 20.00% |
| Greg Kroah-Hartman | 3 | 4.29% | 2 | 40.00% |
| Kay Sievers | 1 | 1.43% | 1 | 20.00% |
| Total | 70 | 100.00% | 5 | 100.00% |
void dca_sysfs_remove_req(struct dca_provider *dca, int slot)
{
device_destroy(dca_class, MKDEV(0, slot + 1));
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shannon Nelson | 26 | 96.30% | 1 | 50.00% |
| Kay Sievers | 1 | 3.70% | 1 | 50.00% |
| Total | 27 | 100.00% | 2 | 100.00% |
int dca_sysfs_add_provider(struct dca_provider *dca, struct device *dev)
{
struct device *cd;
int ret;
idr_preload(GFP_KERNEL);
spin_lock(&dca_idr_lock);
ret = idr_alloc(&dca_idr, dca, 0, 0, GFP_NOWAIT);
if (ret >= 0)
dca->id = ret;
spin_unlock(&dca_idr_lock);
idr_preload_end();
if (ret < 0)
return ret;
cd = device_create(dca_class, dev, MKDEV(0, 0), NULL, "dca%d", dca->id);
if (IS_ERR(cd)) {
spin_lock(&dca_idr_lock);
idr_remove(&dca_idr, dca->id);
spin_unlock(&dca_idr_lock);
return PTR_ERR(cd);
}
dca->cd = cd;
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shannon Nelson | 117 | 78.00% | 1 | 20.00% |
| Tejun Heo | 28 | 18.67% | 1 | 20.00% |
| Greg Kroah-Hartman | 3 | 2.00% | 2 | 40.00% |
| Kay Sievers | 2 | 1.33% | 1 | 20.00% |
| Total | 150 | 100.00% | 5 | 100.00% |
void dca_sysfs_remove_provider(struct dca_provider *dca)
{
device_unregister(dca->cd);
dca->cd = NULL;
spin_lock(&dca_idr_lock);
idr_remove(&dca_idr, dca->id);
spin_unlock(&dca_idr_lock);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shannon Nelson | 44 | 97.78% | 1 | 50.00% |
| Kay Sievers | 1 | 2.22% | 1 | 50.00% |
| Total | 45 | 100.00% | 2 | 100.00% |
int __init dca_sysfs_init(void)
{
idr_init(&dca_idr);
spin_lock_init(&dca_idr_lock);
dca_class = class_create(THIS_MODULE, "dca");
if (IS_ERR(dca_class)) {
idr_destroy(&dca_idr);
return PTR_ERR(dca_class);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shannon Nelson | 53 | 100.00% | 1 | 100.00% |
| Total | 53 | 100.00% | 1 | 100.00% |
void __exit dca_sysfs_exit(void)
{
class_destroy(dca_class);
idr_destroy(&dca_idr);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shannon Nelson | 19 | 100.00% | 1 | 100.00% |
| Total | 19 | 100.00% | 1 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Shannon Nelson | 355 | 87.22% | 1 | 11.11% |
| Tejun Heo | 31 | 7.62% | 2 | 22.22% |
| Maciej Sosnowski | 7 | 1.72% | 2 | 22.22% |
| Greg Kroah-Hartman | 6 | 1.47% | 2 | 22.22% |
| Kay Sievers | 5 | 1.23% | 1 | 11.11% |
| Paul Gortmaker | 3 | 0.74% | 1 | 11.11% |
| Total | 407 | 100.00% | 9 | 100.00% |
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