cregit-Linux how code gets into the kernel

Release 4.16 drivers/pci/hotplug/shpchp_sysfs.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Compaq Hot Plug Controller Driver
 *
 * Copyright (c) 1995,2001 Compaq Computer Corporation
 * Copyright (c) 2001,2003 Greg Kroah-Hartman (greg@kroah.com)
 * Copyright (c) 2001 IBM Corp.
 *
 * All rights reserved.
 *
 * Send feedback to <greg@kroah.com>
 *
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/pci.h>
#include "shpchp.h"


/* 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) { struct pci_dev *pdev; char *out = buf; int index, busnr; struct resource *res; struct pci_bus *bus; pdev = to_pci_dev(dev); bus = pdev->subordinate; out += sprintf(buf, "Free resources: memory\n"); pci_bus_for_each_resource(bus, res, index) { 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)); } } out += sprintf(out, "Free resources: prefetchable memory\n"); pci_bus_for_each_resource(bus, res, index) { 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)); } } out += sprintf(out, "Free resources: IO\n"); pci_bus_for_each_resource(bus, res, index) { 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)); } } out += sprintf(out, "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)); return out - buf; }

Contributors

PersonTokensPropCommitsCommitProp
Dely Sy14943.31%111.11%
Rajesh Shah10530.52%111.11%
Greg Kroah-Hartman319.01%222.22%
Björn Helgaas246.98%111.11%
Yinghai Lu174.94%111.11%
Joe Perches123.49%111.11%
Yani Ioannou51.45%111.11%
Geliang Tang10.29%111.11%
Total344100.00%9100.00%

static DEVICE_ATTR(ctrl, S_IRUGO, show_ctrl, NULL);
int shpchp_create_ctrl_files(struct controller *ctrl) { return device_create_file(&ctrl->pci_dev->dev, &dev_attr_ctrl); }

Contributors

PersonTokensPropCommitsCommitProp
Dely Sy2187.50%150.00%
Greg Kroah-Hartman312.50%150.00%
Total24100.00%2100.00%


void shpchp_remove_ctrl_files(struct controller *ctrl) { device_remove_file(&ctrl->pci_dev->dev, &dev_attr_ctrl); }

Contributors

PersonTokensPropCommitsCommitProp
Rajesh Shah23100.00%1100.00%
Total23100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Dely Sy19847.03%18.33%
Rajesh Shah12830.40%216.67%
Greg Kroah-Hartman348.08%325.00%
Björn Helgaas266.18%216.67%
Yinghai Lu174.04%18.33%
Joe Perches122.85%18.33%
Yani Ioannou51.19%18.33%
Geliang Tang10.24%18.33%
Total421100.00%12100.00%
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