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path: root/drivers/pci/pci-sysfs.c
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Diffstat (limited to 'drivers/pci/pci-sysfs.c')
-rw-r--r--drivers/pci/pci-sysfs.c45
1 files changed, 32 insertions, 13 deletions
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index fad93983bfe..6309c5a2528 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -21,6 +21,7 @@
#include <linux/stat.h>
#include <linux/topology.h>
#include <linux/mm.h>
+#include <linux/fs.h>
#include <linux/capability.h>
#include <linux/pci-aspm.h>
#include <linux/slab.h>
@@ -357,7 +358,8 @@ boot_vga_show(struct device *dev, struct device_attribute *attr, char *buf)
struct device_attribute vga_attr = __ATTR_RO(boot_vga);
static ssize_t
-pci_read_config(struct kobject *kobj, struct bin_attribute *bin_attr,
+pci_read_config(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pci_dev *dev = to_pci_dev(container_of(kobj,struct device,kobj));
@@ -366,7 +368,7 @@ pci_read_config(struct kobject *kobj, struct bin_attribute *bin_attr,
u8 *data = (u8*) buf;
/* Several chips lock up trying to read undefined config space */
- if (capable(CAP_SYS_ADMIN)) {
+ if (cap_raised(filp->f_cred->cap_effective, CAP_SYS_ADMIN)) {
size = dev->cfg_size;
} else if (dev->hdr_type == PCI_HEADER_TYPE_CARDBUS) {
size = 128;
@@ -430,7 +432,8 @@ pci_read_config(struct kobject *kobj, struct bin_attribute *bin_attr,
}
static ssize_t
-pci_write_config(struct kobject *kobj, struct bin_attribute *bin_attr,
+pci_write_config(struct file* filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pci_dev *dev = to_pci_dev(container_of(kobj,struct device,kobj));
@@ -487,7 +490,8 @@ pci_write_config(struct kobject *kobj, struct bin_attribute *bin_attr,
}
static ssize_t
-read_vpd_attr(struct kobject *kobj, struct bin_attribute *bin_attr,
+read_vpd_attr(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pci_dev *dev =
@@ -502,7 +506,8 @@ read_vpd_attr(struct kobject *kobj, struct bin_attribute *bin_attr,
}
static ssize_t
-write_vpd_attr(struct kobject *kobj, struct bin_attribute *bin_attr,
+write_vpd_attr(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pci_dev *dev =
@@ -519,6 +524,7 @@ write_vpd_attr(struct kobject *kobj, struct bin_attribute *bin_attr,
#ifdef HAVE_PCI_LEGACY
/**
* pci_read_legacy_io - read byte(s) from legacy I/O port space
+ * @filp: open sysfs file
* @kobj: kobject corresponding to file to read from
* @bin_attr: struct bin_attribute for this file
* @buf: buffer to store results
@@ -529,7 +535,8 @@ write_vpd_attr(struct kobject *kobj, struct bin_attribute *bin_attr,
* callback routine (pci_legacy_read).
*/
static ssize_t
-pci_read_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
+pci_read_legacy_io(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pci_bus *bus = to_pci_bus(container_of(kobj,
@@ -545,6 +552,7 @@ pci_read_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
/**
* pci_write_legacy_io - write byte(s) to legacy I/O port space
+ * @filp: open sysfs file
* @kobj: kobject corresponding to file to read from
* @bin_attr: struct bin_attribute for this file
* @buf: buffer containing value to be written
@@ -555,7 +563,8 @@ pci_read_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
* callback routine (pci_legacy_write).
*/
static ssize_t
-pci_write_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
+pci_write_legacy_io(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pci_bus *bus = to_pci_bus(container_of(kobj,
@@ -570,6 +579,7 @@ pci_write_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
/**
* pci_mmap_legacy_mem - map legacy PCI memory into user memory space
+ * @filp: open sysfs file
* @kobj: kobject corresponding to device to be mapped
* @attr: struct bin_attribute for this file
* @vma: struct vm_area_struct passed to mmap
@@ -579,7 +589,8 @@ pci_write_legacy_io(struct kobject *kobj, struct bin_attribute *bin_attr,
* memory space.
*/
static int
-pci_mmap_legacy_mem(struct kobject *kobj, struct bin_attribute *attr,
+pci_mmap_legacy_mem(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
struct vm_area_struct *vma)
{
struct pci_bus *bus = to_pci_bus(container_of(kobj,
@@ -591,6 +602,7 @@ pci_mmap_legacy_mem(struct kobject *kobj, struct bin_attribute *attr,
/**
* pci_mmap_legacy_io - map legacy PCI IO into user memory space
+ * @filp: open sysfs file
* @kobj: kobject corresponding to device to be mapped
* @attr: struct bin_attribute for this file
* @vma: struct vm_area_struct passed to mmap
@@ -600,7 +612,8 @@ pci_mmap_legacy_mem(struct kobject *kobj, struct bin_attribute *attr,
* memory space. Returns -ENOSYS if the operation isn't supported
*/
static int
-pci_mmap_legacy_io(struct kobject *kobj, struct bin_attribute *attr,
+pci_mmap_legacy_io(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
struct vm_area_struct *vma)
{
struct pci_bus *bus = to_pci_bus(container_of(kobj,
@@ -750,14 +763,16 @@ pci_mmap_resource(struct kobject *kobj, struct bin_attribute *attr,
}
static int
-pci_mmap_resource_uc(struct kobject *kobj, struct bin_attribute *attr,
+pci_mmap_resource_uc(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
struct vm_area_struct *vma)
{
return pci_mmap_resource(kobj, attr, vma, 0);
}
static int
-pci_mmap_resource_wc(struct kobject *kobj, struct bin_attribute *attr,
+pci_mmap_resource_wc(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *attr,
struct vm_area_struct *vma)
{
return pci_mmap_resource(kobj, attr, vma, 1);
@@ -861,6 +876,7 @@ void __weak pci_remove_resource_files(struct pci_dev *dev) { return; }
/**
* pci_write_rom - used to enable access to the PCI ROM display
+ * @filp: sysfs file
* @kobj: kernel object handle
* @bin_attr: struct bin_attribute for this file
* @buf: user input
@@ -870,7 +886,8 @@ void __weak pci_remove_resource_files(struct pci_dev *dev) { return; }
* writing anything except 0 enables it
*/
static ssize_t
-pci_write_rom(struct kobject *kobj, struct bin_attribute *bin_attr,
+pci_write_rom(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pci_dev *pdev = to_pci_dev(container_of(kobj, struct device, kobj));
@@ -885,6 +902,7 @@ pci_write_rom(struct kobject *kobj, struct bin_attribute *bin_attr,
/**
* pci_read_rom - read a PCI ROM
+ * @filp: sysfs file
* @kobj: kernel object handle
* @bin_attr: struct bin_attribute for this file
* @buf: where to put the data we read from the ROM
@@ -895,7 +913,8 @@ pci_write_rom(struct kobject *kobj, struct bin_attribute *bin_attr,
* device corresponding to @kobj.
*/
static ssize_t
-pci_read_rom(struct kobject *kobj, struct bin_attribute *bin_attr,
+pci_read_rom(struct file *filp, struct kobject *kobj,
+ struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct pci_dev *pdev = to_pci_dev(container_of(kobj, struct device, kobj));
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-19 02:52:16 +0000