diff options
Diffstat (limited to 'drivers/pci/hotplug/shpchp_sysfs.c')
| -rw-r--r-- | drivers/pci/hotplug/shpchp_sysfs.c | 72 |
1 files changed, 31 insertions, 41 deletions
diff --git a/drivers/pci/hotplug/shpchp_sysfs.c b/drivers/pci/hotplug/shpchp_sysfs.c index e8c31fe20566..01d47a42da04 100644 --- a/drivers/pci/hotplug/shpchp_sysfs.c +++ b/drivers/pci/hotplug/shpchp_sysfs.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Compaq Hot Plug Controller Driver * @@ -7,21 +8,6 @@ * * 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, GOOD TITLE or - * NON INFRINGEMENT. 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., 675 Mass Ave, Cambridge, MA 02139, USA. - * * Send feedback to <greg@kroah.com> * */ @@ -35,59 +21,63 @@ /* A few routines that create sysfs entries for the hot plug controller */ -static ssize_t show_ctrl (struct device *dev, struct device_attribute *attr, char *buf) +static ssize_t show_ctrl(struct device *dev, struct device_attribute *attr, char *buf) { struct pci_dev *pdev; - char * out = buf; - int index, busnr; struct resource *res; struct pci_bus *bus; + size_t len = 0; + int busnr; - pdev = container_of (dev, struct pci_dev, dev); + pdev = to_pci_dev(dev); bus = pdev->subordinate; - out += sprintf(buf, "Free resources: memory\n"); - pci_bus_for_each_resource(bus, res, index) { + len += sysfs_emit_at(buf, len, "Free resources: memory\n"); + pci_bus_for_each_resource(bus, res) { if (res && (res->flags & IORESOURCE_MEM) && !(res->flags & IORESOURCE_PREFETCH)) { - out += sprintf(out, "start = %8.8llx, length = %8.8llx\n", - (unsigned long long)res->start, - (unsigned long long)resource_size(res)); + len += sysfs_emit_at(buf, len, + "start = %8.8llx, length = %8.8llx\n", + (unsigned long long)res->start, + (unsigned long long)resource_size(res)); } } - out += sprintf(out, "Free resources: prefetchable memory\n"); - pci_bus_for_each_resource(bus, res, index) { + len += sysfs_emit_at(buf, len, "Free resources: prefetchable memory\n"); + pci_bus_for_each_resource(bus, res) { if (res && (res->flags & IORESOURCE_MEM) && (res->flags & IORESOURCE_PREFETCH)) { - out += sprintf(out, "start = %8.8llx, length = %8.8llx\n", - (unsigned long long)res->start, - (unsigned long long)resource_size(res)); + len += sysfs_emit_at(buf, len, + "start = %8.8llx, length = %8.8llx\n", + (unsigned long long)res->start, + (unsigned long long)resource_size(res)); } } - out += sprintf(out, "Free resources: IO\n"); - pci_bus_for_each_resource(bus, res, index) { + len += sysfs_emit_at(buf, len, "Free resources: IO\n"); + pci_bus_for_each_resource(bus, res) { if (res && (res->flags & IORESOURCE_IO)) { - out += sprintf(out, "start = %8.8llx, length = %8.8llx\n", - (unsigned long long)res->start, - (unsigned long long)resource_size(res)); + len += sysfs_emit_at(buf, len, + "start = %8.8llx, length = %8.8llx\n", + (unsigned long long)res->start, + (unsigned long long)resource_size(res)); } } - out += sprintf(out, "Free resources: bus numbers\n"); + len += sysfs_emit_at(buf, len, "Free resources: bus numbers\n"); for (busnr = bus->busn_res.start; busnr <= bus->busn_res.end; busnr++) { if (!pci_find_bus(pci_domain_nr(bus), busnr)) break; } if (busnr < bus->busn_res.end) - out += sprintf(out, "start = %8.8x, length = %8.8x\n", - busnr, (int)(bus->busn_res.end - busnr)); + len += sysfs_emit_at(buf, len, + "start = %8.8x, length = %8.8x\n", + busnr, (int)(bus->busn_res.end - busnr)); - return out - buf; + return len; } -static DEVICE_ATTR (ctrl, S_IRUGO, show_ctrl, NULL); +static DEVICE_ATTR(ctrl, S_IRUGO, show_ctrl, NULL); -int shpchp_create_ctrl_files (struct controller *ctrl) +int shpchp_create_ctrl_files(struct controller *ctrl) { - return device_create_file (&ctrl->pci_dev->dev, &dev_attr_ctrl); + return device_create_file(&ctrl->pci_dev->dev, &dev_attr_ctrl); } void shpchp_remove_ctrl_files(struct controller *ctrl) |