cregit-Linux how code gets into the kernel

Release 4.11 drivers/net/wireless/broadcom/b43/sysfs.c

/*

  Broadcom B43 wireless driver

  SYSFS support routines

  Copyright (c) 2006 Michael Buesch <m@bues.ch>

  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; see the file COPYING.  If not, write to
  the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
  Boston, MA 02110-1301, USA.

*/

#include <linux/capability.h>
#include <linux/io.h>

#include "b43.h"
#include "sysfs.h"
#include "main.h"
#include "phy_common.h"


#define GENERIC_FILESIZE	64


static int get_integer(const char *buf, size_t count) { char tmp[10 + 1] = { 0 }; int ret = -EINVAL; if (count == 0) goto out; count = min_t(size_t, count, 10); memcpy(tmp, buf, count); ret = simple_strtol(tmp, NULL, 10); out: return ret; }

Contributors

PersonTokensPropCommitsCommitProp
Michael Büsch7496.10%150.00%
Silvan Jegen33.90%150.00%
Total77100.00%2100.00%


static ssize_t b43_attr_interfmode_show(struct device *dev, struct device_attribute *attr, char *buf) { struct b43_wldev *wldev = dev_to_b43_wldev(dev); ssize_t count = 0; if (!capable(CAP_NET_ADMIN)) return -EPERM; mutex_lock(&wldev->wl->mutex); if (wldev->phy.type != B43_PHYTYPE_G) { mutex_unlock(&wldev->wl->mutex); return -ENOSYS; } switch (wldev->phy.g->interfmode) { case B43_INTERFMODE_NONE: count = snprintf(buf, PAGE_SIZE, "0 (No Interference Mitigation)\n"); break; case B43_INTERFMODE_NONWLAN: count = snprintf(buf, PAGE_SIZE, "1 (Non-WLAN Interference Mitigation)\n"); break; case B43_INTERFMODE_MANUALWLAN: count = snprintf(buf, PAGE_SIZE, "2 (WLAN Interference Mitigation)\n"); break; default: B43_WARN_ON(1); } mutex_unlock(&wldev->wl->mutex); return count; }

Contributors

PersonTokensPropCommitsCommitProp
Michael Büsch159100.00%2100.00%
Total159100.00%2100.00%


static ssize_t b43_attr_interfmode_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct b43_wldev *wldev = dev_to_b43_wldev(dev); int err; int mode; if (!capable(CAP_NET_ADMIN)) return -EPERM; mode = get_integer(buf, count); switch (mode) { case 0: mode = B43_INTERFMODE_NONE; break; case 1: mode = B43_INTERFMODE_NONWLAN; break; case 2: mode = B43_INTERFMODE_MANUALWLAN; break; case 3: mode = B43_INTERFMODE_AUTOWLAN; break; default: return -EINVAL; } mutex_lock(&wldev->wl->mutex); if (wldev->phy.ops->interf_mitigation) { err = wldev->phy.ops->interf_mitigation(wldev, mode); if (err) { b43err(wldev->wl, "Interference Mitigation not " "supported by device\n"); } } else err = -ENOSYS; mmiowb(); mutex_unlock(&wldev->wl->mutex); return err ? err : count; }

Contributors

PersonTokensPropCommitsCommitProp
Michael Büsch183100.00%2100.00%
Total183100.00%2100.00%

static DEVICE_ATTR(interference, 0644, b43_attr_interfmode_show, b43_attr_interfmode_store);
int b43_sysfs_register(struct b43_wldev *wldev) { struct device *dev = wldev->dev->dev; B43_WARN_ON(b43_status(wldev) != B43_STAT_INITIALIZED); return device_create_file(dev, &dev_attr_interference); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Büsch3997.50%150.00%
Johannes Berg12.50%150.00%
Total40100.00%2100.00%


void b43_sysfs_unregister(struct b43_wldev *wldev) { struct device *dev = wldev->dev->dev; device_remove_file(dev, &dev_attr_interference); }

Contributors

PersonTokensPropCommitsCommitProp
Michael Büsch29100.00%1100.00%
Total29100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Michael Büsch51297.90%350.00%
Geert Uytterhoeven71.34%116.67%
Silvan Jegen30.57%116.67%
Johannes Berg10.19%116.67%
Total523100.00%6100.00%
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